本(ben)公開(kai)內容涉及被配置成對用于針對所(suo)謂智能鑰(yao)匙系統中的(de)智能鑰(yao)匙來發射和接收認證信(xin)息的(de)天(tian)線進行驅動(dong)的(de)天(tian)線驅動(dong)裝置。

背景技術：

現(xian)今，響(xiang)應于對(dui)便(bian)利性(xing)和安(an)全性(xing)的要(yao)求，配(pei)(pei)備有所(suo)謂智能鑰匙(chi)系統(tong)的車(che)輛(liang)(liang)已經遍及市場。智能鑰匙(chi)系統(tong)被(bei)配(pei)(pei)置(zhi)成當車(che)輛(liang)(liang)的用戶靠近或接觸車(che)輛(liang)(liang)開(kai)合(he)構(gou)件例(li)如(ru)車(che)門時在用戶攜帶的便(bian)攜式設備(智能鑰匙(chi))與車(che)載(zai)裝置(zhi)之間通過(guo)無線電來交(jiao)換認證信息(xi)并且在認證信息(xi)匹配(pei)(pei)時自(zi)動鎖定和解鎖車(che)輛(liang)(liang)開(kai)合(he)構(gou)件(例(li)如(ru)，參(can)見JP A)。

相關技(ji)術的(de)(de)智能鑰匙(chi)系統通常包(bao)括：(1)用(yong)于與(yu)車輛的(de)(de)用(yong)戶攜帶的(de)(de)便攜式設(she)備交換認證(zheng)信息的(de)(de)天線(xian)(xian)；(2)檢測(ce)用(yong)戶與(yu)設(she)置在車輛開合構件附(fu)近的(de)(de)人檢測(ce)區域的(de)(de)接觸的(de)(de)人檢測(ce)IC；以及(ji)(3)驅動并且控(kong)制天線(xian)(xian)和人檢測(ce)IC的(de)(de)ECU(電子控(kong)制單(dan)元(yuan))。

然(ran)而，關(guan)于上(shang)述(shu)相關(guan)技術的(de)配置，需要(yao)若干連接(jie)線以(yi)用(yong)于連接(jie)部(bu)件。因(yin)此，產生了裝置的(de)尺寸和成本增(zeng)大的(de)問題。例(li)如，JP A中公(gong)開的(de)配置需要(yao)具(ju)有5m至8m的(de)長(chang)度(du)的(de)至少(shao)六根線束(shu)。

作為用于解(jie)決上述問題(ti)的(de)(de)相(xiang)關(guan)技(ji)術，提出(chu)了通(tong)過以下而在尺寸(cun)和(he)成本上減小(xiao)的(de)(de)裝置(zhi)：將天線(xian)(xian)和(he)人(ren)檢(jian)測(ce)IC集(ji)成在一個車載(zai)裝置(zhi)中并且(qie)將用于人(ren)檢(jian)測(ce)IC的(de)(de)直流電(dian)源電(dian)壓、人(ren)檢(jian)測(ce)信號(hao)和(he)天線(xian)(xian)驅動信號(hao)疊(die)加在單個連接線(xian)(xian)上以進(jin)行(xing)傳輸(shu)。(例(li)如，參見JP T)。在JP T中，中央處理單元3和(he)電(dian)子通(tong)信模塊2通(tong)過兩(liang)條(tiao)線(xian)(xian)4和(he)5相(xiang)連，并且(qie)DC電(dian)壓和(he)天線(xian)(xian)驅動信號(hao)從兩(liang)條(tiao)線(xian)(xian)4和(he)5被(bei)可切換地(di)輸(shu)出(chu)以避(bi)免疊(die)加在線(xian)(xian)4和(he)5上的(de)(de)信號(hao)的(de)(de)最大值的(de)(de)增加。

關于如JP T中所(suo)(suo)公(gong)開的(de)被配置成從同一連接線(xian)可切換地(di)輸(shu)(shu)出(chu)DC電壓(ya)和(he)天(tian)線(xian)驅(qu)動(dong)信號的(de)天(tian)線(xian)驅(qu)動(dong)裝置，需(xu)要(yao)(yao)在線(xian)4和(he)5與低(di)(di)頻電壓(ya)發生(sheng)器(qi)30之間設(she)置電容器(qi)38和(he)39以(yi)防止由DC電壓(ya)引起的(de)并且向線(xian)4和(he)5輸(shu)(shu)出(chu)的(de)電流反方向地(di)朝(chao)向低(di)(di)頻電壓(ya)發生(sheng)器(qi)30流動(dong)。然(ran)而，因為需(xu)要(yao)(yao)設(she)置具(ju)有大電容的(de)電容器(qi)38和(he)39以(yi)減小天(tian)線(xian)的(de)諧(xie)振電路對阻(zu)抗(kang)的(de)影(ying)響，所(suo)(suo)以(yi)裝置具(ju)有成本(ben)增加的(de)問題(ti)。

當設置(zhi)了(le)電(dian)容器38和39時，電(dian)容器38和39中充電(dian)的天(tian)線(xian)驅動信(xin)(xin)(xin)號(hao)在至電(dian)子(zi)(zi)通(tong)信(xin)(xin)(xin)模(mo)塊(kuai)2的輸(shu)出從天(tian)線(xian)驅動信(xin)(xin)(xin)號(hao)切(qie)換成(cheng)DC電(dian)壓時被(bei)(bei)疊加(jia)在DC電(dian)壓上，并且作為天(tian)線(xian)驅動信(xin)(xin)(xin)號(hao)和DC電(dian)壓之和的電(dian)壓被(bei)(bei)施加(jia)于電(dian)子(zi)(zi)通(tong)信(xin)(xin)(xin)模(mo)塊(kuai)2。因此，要求電(dian)子(zi)(zi)通(tong)信(xin)(xin)(xin)模(mo)塊(kuai)2具有較大的額定值，從而裝(zhuang)置(zhi)具有成(cheng)本進一步增加(jia)的問題。

技術實現要素：

因此，存在(zai)對(dui)于(yu)如下低成本天線驅(qu)動裝(zhuang)置(zhi)的(de)需要(yao)：該天線驅(qu)動裝(zhuang)置(zhi)能夠在(zai)不使用(yong)具有大(da)電容的(de)電容器的(de)情況(kuang)下，通過使用(yong)同(tong)一連接線來可切(qie)換地輸出直流(liu)電源(yuan)電壓(ya)和天線驅(qu)動信號。

根據本公開內容的(de)(de)(de)第(di)(di)一(yi)(yi)方面的(de)(de)(de)天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)裝(zhuang)置(zhi)包括(kuo)：直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)，該直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)被(bei)配置(zhi)成(cheng)(cheng)向(xiang)人(ren)(ren)(ren)檢測(ce)IC提供直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)力，人(ren)(ren)(ren)檢測(ce)IC被(bei)配置(zhi)成(cheng)(cheng)檢測(ce)車輛的(de)(de)(de)用戶與車輛的(de)(de)(de)人(ren)(ren)(ren)檢測(ce)區(qu)域的(de)(de)(de)接(jie)(jie)觸，直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)向(xiang)第(di)(di)一(yi)(yi)連(lian)(lian)(lian)接(jie)(jie)線(xian)輸(shu)出直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓并(bing)且(qie)向(xiang)第(di)(di)二(er)(er)連(lian)(lian)(lian)接(jie)(jie)線(xian)輸(shu)出參考(kao)電(dian)(dian)(dian)位，第(di)(di)一(yi)(yi)連(lian)(lian)(lian)接(jie)(jie)線(xian)電(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)至(zhi)(zhi)(zhi)人(ren)(ren)(ren)檢測(ce)IC的(de)(de)(de)電(dian)(dian)(dian)源(yuan)端(duan)子，第(di)(di)二(er)(er)連(lian)(lian)(lian)接(jie)(jie)線(xian)電(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)至(zhi)(zhi)(zhi)人(ren)(ren)(ren)檢測(ce)IC的(de)(de)(de)GND端(duan)子；天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)電(dian)(dian)(dian)路(lu)(lu)，該天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)電(dian)(dian)(dian)路(lu)(lu)被(bei)配置(zhi)成(cheng)(cheng)對向(xiang)用戶攜(xie)帶(dai)的(de)(de)(de)便攜(xie)式設(she)備發射信號(hao)(hao)的(de)(de)(de)天(tian)(tian)線(xian)進行(xing)驅(qu)(qu)(qu)動(dong)，天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)電(dian)(dian)(dian)路(lu)(lu)將通過(guo)在(zai)直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓與參考(kao)電(dian)(dian)(dian)位之間(jian)(jian)進行(xing)切換(huan)而生成(cheng)(cheng)的(de)(de)(de)第(di)(di)一(yi)(yi)天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)信號(hao)(hao)輸(shu)出至(zhi)(zhi)(zhi)與天(tian)(tian)線(xian)的(de)(de)(de)一(yi)(yi)端(duan)電(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)的(de)(de)(de)第(di)(di)一(yi)(yi)連(lian)(lian)(lian)接(jie)(jie)線(xian)、并(bing)且(qie)將第(di)(di)一(yi)(yi)天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)信號(hao)(hao)與要輸(shu)出至(zhi)(zhi)(zhi)與天(tian)(tian)線(xian)的(de)(de)(de)另一(yi)(yi)端(duan)電(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)的(de)(de)(de)第(di)(di)二(er)(er)連(lian)(lian)(lian)接(jie)(jie)線(xian)的(de)(de)(de)第(di)(di)二(er)(er)天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)信號(hao)(hao)之間(jian)(jian)的(de)(de)(de)電(dian)(dian)(dian)位差輸(shu)出至(zhi)(zhi)(zhi)天(tian)(tian)線(xian)作為天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)信號(hao)(hao)；以(yi)及控(kong)(kong)制(zhi)(zhi)單(dan)元(yuan)，該控(kong)(kong)制(zhi)(zhi)單(dan)元(yuan)被(bei)配置(zhi)成(cheng)(cheng)對要輸(shu)出至(zhi)(zhi)(zhi)第(di)(di)一(yi)(yi)連(lian)(lian)(lian)接(jie)(jie)線(xian)和(he)第(di)(di)二(er)(er)連(lian)(lian)(lian)接(jie)(jie)線(xian)的(de)(de)(de)天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)信號(hao)(hao)和(he)直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓執行(xing)切換(huan)控(kong)(kong)制(zhi)(zhi)并(bing)且(qie)對天(tian)(tian)線(xian)驅(qu)(qu)(qu)動(dong)電(dian)(dian)(dian)路(lu)(lu)執行(xing)切換(huan)控(kong)(kong)制(zhi)(zhi)。

根據本公開(kai)內容的(de)第一方面的(de)天(tian)(tian)線驅(qu)動裝置(zhi)還(huan)可以包括升壓(ya)(ya)/降(jiang)壓(ya)(ya)電(dian)(dian)(dian)路(lu)，該升壓(ya)(ya)/降(jiang)壓(ya)(ya)電(dian)(dian)(dian)路(lu)被配置(zhi)成(cheng)升高(gao)和降(jiang)低(di)直流電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)(ya)并且(qie)輸出升高(gao)和降(jiang)低(di)的(de)電(dian)(dian)(dian)壓(ya)(ya)，以及天(tian)(tian)線驅(qu)動電(dian)(dian)(dian)路(lu)可以通過將升高(gao)和降(jiang)低(di)的(de)電(dian)(dian)(dian)壓(ya)(ya)與參考電(dian)(dian)(dian)位進(jin)行切換來(lai)生(sheng)成(cheng)要輸出至(zhi)第二連接線的(de)第二天(tian)(tian)線驅(qu)動信號(hao)。

根據本公開內(nei)容的(de)(de)第(di)一方面的(de)(de)天(tian)(tian)線(xian)(xian)(xian)(xian)驅動(dong)(dong)(dong)裝置還可(ke)以(yi)(yi)包括：電(dian)(dian)(dian)(dian)流(liu)(liu)測量電(dian)(dian)(dian)(dian)路(lu)(lu)，該電(dian)(dian)(dian)(dian)流(liu)(liu)測量電(dian)(dian)(dian)(dian)路(lu)(lu)被(bei)配置成(cheng)測量在(zai)天(tian)(tian)線(xian)(xian)(xian)(xian)中流(liu)(liu)動(dong)(dong)(dong)的(de)(de)天(tian)(tian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)流(liu)(liu)；以(yi)(yi)及天(tian)(tian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)壓(ya)可(ke)變(bian)電(dian)(dian)(dian)(dian)路(lu)(lu)，該天(tian)(tian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)壓(ya)可(ke)變(bian)電(dian)(dian)(dian)(dian)路(lu)(lu)被(bei)配置成(cheng)改(gai)(gai)變(bian)直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)或(huo)者升(sheng)高/降低的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)使得天(tian)(tian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)測量值變(bian)得與天(tian)(tian)線(xian)(xian)(xian)(xian)需要的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)值相等，并(bing)且(qie)輸出改(gai)(gai)變(bian)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)，其中，天(tian)(tian)線(xian)(xian)(xian)(xian)驅動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)路(lu)(lu)可(ke)以(yi)(yi)通過將改(gai)(gai)變(bian)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)和參考電(dian)(dian)(dian)(dian)位進行切換來生成(cheng)要輸出至第(di)二(er)連接線(xian)(xian)(xian)(xian)的(de)(de)第(di)二(er)天(tian)(tian)線(xian)(xian)(xian)(xian)驅動(dong)(dong)(dong)信號(hao)。

根(gen)據本公(gong)開內容的(de)(de)(de)(de)第(di)(di)二方(fang)面的(de)(de)(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)裝置(zhi)包括：直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，該直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)被(bei)(bei)配置(zhi)成(cheng)向(xiang)人(ren)檢(jian)(jian)測IC提供(gong)直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)力，人(ren)檢(jian)(jian)測IC被(bei)(bei)配置(zhi)成(cheng)檢(jian)(jian)測車輛的(de)(de)(de)(de)用戶與車輛的(de)(de)(de)(de)人(ren)檢(jian)(jian)測區域的(de)(de)(de)(de)接(jie)(jie)(jie)(jie)觸，直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)向(xiang)第(di)(di)一連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)輸出直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)壓并(bing)且(qie)向(xiang)第(di)(di)二連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)輸出參考電(dian)(dian)(dian)(dian)(dian)位，第(di)(di)一連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)至人(ren)檢(jian)(jian)測IC的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)端(duan)子，第(di)(di)二連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)至人(ren)檢(jian)(jian)測IC的(de)(de)(de)(de)GND端(duan)子；天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)，該天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)被(bei)(bei)配置(zhi)成(cheng)對(dui)向(xiang)用戶攜帶的(de)(de)(de)(de)便攜式(shi)設備發(fa)射信(xin)(xin)號的(de)(de)(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)進行(xing)驅(qu)(qu)動(dong)(dong)(dong)，天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)向(xiang)電(dian)(dian)(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)至天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)一端(duan)的(de)(de)(de)(de)第(di)(di)一連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)以及電(dian)(dian)(dian)(dian)(dian)連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)至天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)另一端(duan)的(de)(de)(de)(de)第(di)(di)二連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)輸出天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)信(xin)(xin)號；保護二極管，該保護二極管連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)在直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)與天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)之間，并(bing)且(qie)被(bei)(bei)配置(zhi)成(cheng)防止由直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)壓所引起的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)經由天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)反方(fang)向(xiang)地朝向(xiang)直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)流(liu)(liu)(liu)(liu)動(dong)(dong)(dong)；以及控(kong)(kong)制(zhi)單(dan)元(yuan)(yuan)，該控(kong)(kong)制(zhi)單(dan)元(yuan)(yuan)被(bei)(bei)配置(zhi)成(cheng)對(dui)要(yao)輸出至第(di)(di)一連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)和第(di)(di)二連(lian)(lian)(lian)接(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)信(xin)(xin)號和直流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)壓執(zhi)行(xing)切換(huan)控(kong)(kong)制(zhi)并(bing)且(qie)對(dui)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)執(zhi)行(xing)切換(huan)控(kong)(kong)制(zhi)。

根據(ju)本(ben)公開(kai)內容的(de)(de)第二(er)(er)方(fang)面的(de)(de)天(tian)(tian)線(xian)驅(qu)(qu)動(dong)(dong)裝(zhuang)置還可以包括(kuo)升(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電(dian)(dian)(dian)路(lu)(lu)，該升(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電(dian)(dian)(dian)路(lu)(lu)被配置成升(sheng)(sheng)(sheng)(sheng)高和(he)降低(di)直流電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)(ya)(ya)并且(qie)(qie)輸出(chu)升(sheng)(sheng)(sheng)(sheng)高和(he)降低(di)的(de)(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)，天(tian)(tian)線(xian)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路(lu)(lu)可以通過將升(sheng)(sheng)(sheng)(sheng)高和(he)降低(di)的(de)(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)與參考(kao)電(dian)(dian)(dian)位進行(xing)切(qie)換來生成要輸出(chu)至(zhi)第一(yi)連(lian)(lian)接線(xian)和(he)第二(er)(er)連(lian)(lian)接線(xian)的(de)(de)天(tian)(tian)線(xian)驅(qu)(qu)動(dong)(dong)信號，以及保護二(er)(er)極管可以連(lian)(lian)接在(zai)升(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電(dian)(dian)(dian)路(lu)(lu)與天(tian)(tian)線(xian)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路(lu)(lu)之間，并且(qie)(qie)被配置成防止由直流電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)(ya)(ya)所引起的(de)(de)電(dian)(dian)(dian)流經由天(tian)(tian)線(xian)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)路(lu)(lu)反方(fang)向(xiang)地向(xiang)升(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電(dian)(dian)(dian)路(lu)(lu)流動(dong)(dong)。

根據本(ben)公開內容的(de)(de)(de)第二方(fang)面(mian)的(de)(de)(de)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)動(dong)(dong)(dong)裝(zhuang)置(zhi)還可(ke)(ke)(ke)(ke)以(yi)包(bao)括：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流測量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流測量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)被配(pei)置(zhi)成測量在(zai)(zai)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)中(zhong)流動(dong)(dong)(dong)的(de)(de)(de)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流；以(yi)及天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)可(ke)(ke)(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，該天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)可(ke)(ke)(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)被配(pei)置(zhi)成改變(bian)直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)或者升高/降低(di)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)使得(de)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流的(de)(de)(de)測量值變(bian)得(de)與(yu)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)需要(yao)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流值相等，并且(qie)該天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)可(ke)(ke)(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)被配(pei)置(zhi)成輸出改變(bian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)通過(guo)將改變(bian)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和參考電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位(wei)進行切換(huan)來生成要(yao)輸出至第一連接線(xian)(xian)(xian)(xian)(xian)和第二連接線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)動(dong)(dong)(dong)信號，以(yi)及保護(hu)二極管(guan)可(ke)(ke)(ke)(ke)以(yi)連接在(zai)(zai)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)可(ke)(ke)(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)與(yu)天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)之間(jian)，并且(qie)被配(pei)置(zhi)成防止由直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)所引起的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流經由天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅(qu)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)反方(fang)向地向天(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)可(ke)(ke)(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)流動(dong)(dong)(dong)。

在根據本公開(kai)內容的第(di)(di)二(er)方面(mian)的天線(xian)(xian)驅動(dong)裝置中，電(dian)流測量電(dian)路可以與第(di)(di)一(yi)連(lian)接(jie)線(xian)(xian)或(huo)第(di)(di)二(er)連(lian)接(jie)線(xian)(xian)串聯(lian)連(lian)接(jie)，以及用(yong)(yong)于調節與第(di)(di)一(yi)連(lian)接(jie)線(xian)(xian)或(huo)與第(di)(di)二(er)連(lian)接(jie)線(xian)(xian)串聯(lian)連(lian)接(jie)的天線(xian)(xian)的阻(zu)(zu)抗的阻(zu)(zu)尼電(dian)阻(zu)(zu)同時(shi)被用(yong)(yong)作用(yong)(yong)于測量天線(xian)(xian)電(dian)流的電(dian)阻(zu)(zu)。

在根(gen)據本公開內容的(de)第一方(fang)(fang)面(mian)或第二方(fang)(fang)面(mian)的(de)天線驅(qu)動(dong)裝置(zhi)中(zhong)，直流電(dian)源電(dian)壓和天線驅(qu)動(dong)信(xin)號(hao)可以被(bei)(bei)輸出(chu)至人檢測(ce)IC，該人檢測(ce)IC被(bei)(bei)配置(zhi)成(cheng)在直流電(dian)源電(dian)壓未被(bei)(bei)提供(gong)時通過將天線驅(qu)動(dong)信(xin)號(hao)用作電(dian)源來使(shi)操作繼續。

根(gen)據本(ben)公開內容(rong)的第一(yi)方面，通(tong)過對直流(liu)(liu)電(dian)源電(dian)壓(ya)(ya)和參考電(dian)位執(zhi)行(xing)切(qie)換(huan)控制來生成要輸出至第一(yi)連接(jie)線的天(tian)(tian)線驅(qu)(qu)動信(xin)(xin)(xin)號，其中，直流(liu)(liu)電(dian)源電(dian)壓(ya)(ya)和天(tian)(tian)線驅(qu)(qu)動信(xin)(xin)(xin)號從第一(yi)連接(jie)線被可切(qie)換(huan)地輸出。因此(ci)，即使天(tian)(tian)線驅(qu)(qu)動信(xin)(xin)(xin)號的幅(fu)度改變，輸出至第一(yi)連接(jie)線的天(tian)(tian)線驅(qu)(qu)動信(xin)(xin)(xin)號的導(dao)通(tong)電(dian)壓(ya)(ya)仍(reng)被保(bao)持在與直流(liu)(liu)電(dian)源輸出的直流(liu)(liu)電(dian)源電(dian)壓(ya)(ya)相同的值處。因此(ci)，不必在第一(yi)連接(jie)線與天(tian)(tian)線驅(qu)(qu)動電(dian)路之間(jian)設置(zhi)電(dian)容(rong)器。

根據(ju)本公開內容的(de)第二方(fang)面，設置(zhi)了連接(jie)在(zai)直流(liu)(liu)電(dian)(dian)(dian)源與天線(xian)驅動(dong)電(dian)(dian)(dian)路之(zhi)間(jian)的(de)保護二極管，因此，因為直流(liu)(liu)電(dian)(dian)(dian)源電(dian)(dian)(dian)壓的(de)電(dian)(dian)(dian)流(liu)(liu)被阻止經由天線(xian)驅動(dong)電(dian)(dian)(dian)路反方(fang)向地朝向直流(liu)(liu)電(dian)(dian)(dian)源流(liu)(liu)動(dong)，所以不必在(zai)第一(yi)連接(jie)線(xian)與天線(xian)驅動(dong)電(dian)(dian)(dian)路之(zhi)間(jian)設置(zhi)電(dian)(dian)(dian)容器。

因此，可以獲(huo)得如(ru)下低(di)成本的(de)低(di)成本天線(xian)驅(qu)(qu)(qu)動裝(zhuang)置(zhi)：該(gai)天線(xian)驅(qu)(qu)(qu)動裝(zhuang)置(zhi)能(neng)夠在不使用具有大(da)電(dian)容(rong)的(de)電(dian)容(rong)器的(de)情(qing)況下、從同一連接線(xian)可切(qie)換(huan)地輸(shu)出直流電(dian)源(yuan)電(dian)壓和天線(xian)驅(qu)(qu)(qu)動信(xin)號(hao)。

附圖說明

本公開內容的(de)前(qian)述(shu)的(de)以(yi)及另外的(de)特征(zheng)和特性在參(can)考(kao)附圖(tu)進行考(kao)慮的(de)情況下根據以(yi)下的(de)詳細描(miao)述(shu)將變得更加明顯(xian)，在附圖(tu)中：

圖(tu)1為包括通過(guo)根據(ju)在此公開的(de)實(shi)施(shi)方(fang)式1的(de)天(tian)線驅動(dong)裝(zhuang)置進行控(kong)制(zhi)的(de)車(che)(che)載裝(zhuang)置的(de)車(che)(che)輛(liang)開合(he)(he)構件的(de)透視(shi)圖(tu)，并且為示出將車(che)(che)門用作車(che)(che)輛(liang)開合(he)(he)構件的(de)情況(kuang)的(de)示例(li)的(de)示意圖(tu)。

圖(tu)2為示(shi)出(chu)車載(zai)裝(zhuang)置和(he)根據在此公開(kai)的(de)實施(shi)方式1的(de)天線驅動裝(zhuang)置的(de)電路配(pei)置的(de)示(shi)意圖(tu)；

圖(tu)3A至圖(tu)3C為從(cong)根據在此公(gong)開的(de)(de)(de)實施方式1的(de)(de)(de)天線(xian)驅(qu)動裝置(zhi)輸出的(de)(de)(de)天線(xian)驅(qu)動信號的(de)(de)(de)波形的(de)(de)(de)示意圖(tu)；

圖(tu)4A至圖(tu)4C為從相關技(ji)術的(de)(de)天線驅動裝(zhuang)置輸出的(de)(de)天線驅動信(xin)號的(de)(de)波形的(de)(de)示意圖(tu)；

圖(tu)5為(wei)示出車載(zai)裝置和根(gen)據在(zai)此公開(kai)的實施(shi)方(fang)式2的天線驅動裝置的電路配置的第一示意圖(tu)；

圖(tu)6為示出車載(zai)裝置和根據在此公開的(de)實施方式(shi)2的(de)天線驅(qu)動裝置的(de)電路配(pei)置的(de)第二(er)示意圖(tu)；

圖7為示出車(che)載裝(zhuang)置和(he)根(gen)據在此公開的(de)(de)實(shi)施方式2的(de)(de)天(tian)線驅動裝(zhuang)置的(de)(de)電路配置的(de)(de)第三(san)示意(yi)圖；

圖8為示(shi)出車載(zai)裝置和根(gen)據在此公開的實(shi)施方(fang)式2的天線(xian)驅動裝置的電路配置的第(di)四示(shi)意圖；

圖9為示(shi)出車(che)載裝置和根據在(zai)此公開的(de)實(shi)施方式3的(de)天線(xian)驅動裝置的(de)電路配置的(de)示(shi)意圖；以及

圖10為(wei)示出車(che)載裝置(zhi)(zhi)和(he)根(gen)據在(zai)此公開的實施(shi)方(fang)式4的天線驅(qu)動裝置(zhi)(zhi)的電路配置(zhi)(zhi)的示意圖。

具體實施方式

將參照附(fu)圖(tu)來詳細描(miao)述(shu)用(yong)于(yu)實(shi)(shi)現本(ben)公(gong)開內(nei)(nei)容(rong)的(de)(de)(de)示例性實(shi)(shi)施方式(shi)(shi)。下(xia)(xia)文給出(chu)的(de)(de)(de)尺寸(cun)、材料、形狀、實(shi)(shi)施方式(shi)(shi)中描(miao)述(shu)的(de)(de)(de)部件(jian)之(zhi)間(jian)的(de)(de)(de)相(xiang)對位置是(shi)可(ke)(ke)選的(de)(de)(de)并且可(ke)(ke)以根據本(ben)公(gong)開內(nei)(nei)容(rong)所應用(yong)于(yu)的(de)(de)(de)各種(zhong)情況和(he)裝置的(de)(de)(de)結構來進行修改。除非另外特別指(zhi)出(chu)，否則本(ben)公(gong)開內(nei)(nei)容(rong)的(de)(de)(de)范(fan)圍不限于(yu)下(xia)(xia)述(shu)實(shi)(shi)施方式(shi)(shi)中描(miao)述(shu)的(de)(de)(de)模式(shi)(shi)。在下(xia)(xia)文將描(miao)述(shu)的(de)(de)(de)附(fu)圖(tu)中，通過相(xiang)同的(de)(de)(de)附(fu)圖(tu)標記來指(zhi)示具有相(xiang)同功(gong)能的(de)(de)(de)相(xiang)同部件(jian)，并且可(ke)(ke)能省略重復描(miao)述(shu)。

實施方式1

圖(tu)1為(wei)包(bao)括通過根(gen)據在(zai)(zai)此公開(kai)(kai)的(de)(de)(de)(de)實施方(fang)式1的(de)(de)(de)(de)天(tian)線(xian)驅動裝(zhuang)(zhuang)置(zhi)(zhi)200進行(xing)控制(zhi)的(de)(de)(de)(de)車(che)(che)載裝(zhuang)(zhuang)置(zhi)(zhi)100的(de)(de)(de)(de)車(che)(che)輛開(kai)(kai)合構(gou)件的(de)(de)(de)(de)透視圖(tu)，并且為(wei)示(shi)出將(jiang)車(che)(che)門(men)用作車(che)(che)輛開(kai)(kai)合構(gou)件的(de)(de)(de)(de)情(qing)況的(de)(de)(de)(de)示(shi)例的(de)(de)(de)(de)示(shi)意圖(tu)。實施方(fang)式1的(de)(de)(de)(de)車(che)(che)輛開(kai)(kai)合構(gou)件不限于(yu)圖(tu)1所示(shi)的(de)(de)(de)(de)車(che)(che)門(men)，而是包(bao)括例如車(che)(che)輛后(hou)行(xing)李(li)箱的(de)(de)(de)(de)蓋(gai)(gai)子、車(che)(che)輛前(qian)引擎(qing)蓋(gai)(gai)的(de)(de)(de)(de)蓋(gai)(gai)子以及(ji)給油插頭(tou)的(de)(de)(de)(de)蓋(gai)(gai)子等(deng)。在(zai)(zai)下文的(de)(de)(de)(de)描(miao)述中，將(jiang)參照(zhao)圖(tu)1來描(miao)述車(che)(che)載裝(zhuang)(zhuang)置(zhi)(zhi)100，假設(she)為(wei)車(che)(che)門(men)。

如(ru)圖1所(suo)示，車門(men)(men)的(de)(de)門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2安裝在構成(cheng)車門(men)(men)的(de)(de)一部(bu)分(fen)的(de)(de)門(men)(men)板1的(de)(de)外部(bu)，以(yi)沿車輛的(de)(de)縱(zong)長方向延伸。門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2在兩(liang)個(ge)位置處即(ji)前部(bu)和(he)后(hou)部(bu)附(fu)(fu)接(jie)至門(men)(men)板1。門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2通過例(li)如(ru)樹脂成(cheng)型(resin molding)被形成(cheng)為具有(you)內部(bu)空(kong)間的(de)(de)中空(kong)形。如(ru)圖1所(suo)示，門(men)(men)板1在與門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2相對的(de)(de)位置處設(she)置有(you)凹陷1a以(yi)使得人手(shou)(shou)(shou)(shou)能夠在門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2的(de)(de)中心附(fu)(fu)近容易地持握門(men)(men)把(ba)(ba)手(shou)(shou)(shou)(shou)2。

用于解鎖(suo)(suo)(suo)(suo)車(che)門的(de)解鎖(suo)(suo)(suo)(suo)區(qu)(qu)(qu)域(yu)4和用于鎖(suo)(suo)(suo)(suo)定(ding)車(che)門的(de)鎖(suo)(suo)(suo)(suo)定(ding)區(qu)(qu)(qu)域(yu)3設(she)置(zhi)在(zai)(zai)門把(ba)(ba)手(shou)2的(de)外周面上(shang)作為(wei)用于檢(jian)測車(che)輛的(de)用戶與(yu)其的(de)接觸的(de)人檢(jian)測區(qu)(qu)(qu)域(yu)。例(li)如，在(zai)(zai)圖1中(zhong)(zhong)，解鎖(suo)(suo)(suo)(suo)區(qu)(qu)(qu)域(yu)4沿安裝在(zai)(zai)門把(ba)(ba)手(shou)2中(zhong)(zhong)的(de)靜電(dian)(dian)(dian)電(dian)(dian)(dian)容(rong)型解鎖(suo)(suo)(suo)(suo)傳(chuan)感(gan)器電(dian)(dian)(dian)極6設(she)置(zhi)在(zai)(zai)門把(ba)(ba)手(shou)2的(de)持握(wo)部分上(shang)。鎖(suo)(suo)(suo)(suo)定(ding)區(qu)(qu)(qu)域(yu)3沿安裝在(zai)(zai)門把(ba)(ba)手(shou)2中(zhong)(zhong)的(de)靜電(dian)(dian)(dian)電(dian)(dian)(dian)容(rong)型鎖(suo)(suo)(suo)(suo)定(ding)傳(chuan)感(gan)器電(dian)(dian)(dian)極5相(xiang)(xiang)對于解鎖(suo)(suo)(suo)(suo)區(qu)(qu)(qu)域(yu)4設(she)置(zhi)在(zai)(zai)車(che)輛前側。圖1示出鎖(suo)(suo)(suo)(suo)定(ding)區(qu)(qu)(qu)域(yu)3相(xiang)(xiang)對于解鎖(suo)(suo)(suo)(suo)區(qu)(qu)(qu)域(yu)4設(she)置(zhi)在(zai)(zai)車(che)輛前側的(de)示例(li)。然而(er)，鎖(suo)(suo)(suo)(suo)定(ding)區(qu)(qu)(qu)域(yu)3可以相(xiang)(xiang)對于解鎖(suo)(suo)(suo)(suo)區(qu)(qu)(qu)域(yu)4設(she)置(zhi)在(zai)(zai)車(che)輛后側。

與鎖(suo)(suo)(suo)(suo)定(ding)傳感(gan)器(qi)電(dian)(dian)極5和解鎖(suo)(suo)(suo)(suo)傳感(gan)器(qi)電(dian)(dian)極6電(dian)(dian)連接(jie)的(de)(de)車(che)(che)載裝置100安裝在(zai)門(men)(men)把手(shou)2的(de)(de)內部(bu)(bu)。車(che)(che)載裝置100通過(guo)設置在(zai)門(men)(men)把手(shou)2外部(bu)(bu)的(de)(de)天線(xian)驅動裝置200被驅動和控制。當車(che)(che)輛的(de)(de)用(yong)戶接(jie)觸(chu)鎖(suo)(suo)(suo)(suo)定(ding)區域3時，天線(xian)驅動裝置200根(gen)據(ju)鎖(suo)(suo)(suo)(suo)定(ding)傳感(gan)器(qi)電(dian)(dian)極5的(de)(de)電(dian)(dian)容(rong)變化(hua)(hua)來(lai)檢測(ce)接(jie)觸(chu)，并且使(shi)門(men)(men)把手(shou)2被鎖(suo)(suo)(suo)(suo)定(ding)或者處于(yu)可鎖(suo)(suo)(suo)(suo)定(ding)狀(zhuang)態。當車(che)(che)輛的(de)(de)用(yong)戶接(jie)觸(chu)解鎖(suo)(suo)(suo)(suo)區域4時，天線(xian)驅動裝置200根(gen)據(ju)解鎖(suo)(suo)(suo)(suo)傳感(gan)器(qi)電(dian)(dian)極6的(de)(de)電(dian)(dian)容(rong)變化(hua)(hua)來(lai)檢測(ce)接(jie)觸(chu)，并且使(shi)門(men)(men)把手(shou)2被解鎖(suo)(suo)(suo)(suo)或者處于(yu)可解鎖(suo)(suo)(suo)(suo)狀(zhuang)態。

鎖(suo)定(ding)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)5和(he)解鎖(suo)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)6不限于(yu)(yu)靜電(dian)(dian)電(dian)(dian)容型，而(er)是例如(ru)壓力傳感(gan)(gan)(gan)(gan)器(qi)、紅(hong)外線傳感(gan)(gan)(gan)(gan)器(qi)或者(zhe)諸如(ru)射頻識(shi)別器(qi)(RFID)的(de)(de)近距(ju)離傳感(gan)(gan)(gan)(gan)器(qi)同樣(yang)是可適用(yong)的(de)(de)。在圖1中，鎖(suo)定(ding)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)5和(he)解鎖(suo)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)6具有(you)大(da)體上的(de)(de)矩形條形狀，并且解鎖(suo)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)6與鎖(suo)定(ding)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)5相比(bi)較大(da)。然而(er)，示例1不限于(yu)(yu)具有(you)這樣(yang)的(de)(de)配(pei)置。不是必須設(she)置鎖(suo)定(ding)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)5和(he)解鎖(suo)傳感(gan)(gan)(gan)(gan)器(qi)電(dian)(dian)極(ji)6二者(zhe)，而(er)是僅具有(you)這些電(dian)(dian)極(ji)中的(de)(de)一(yi)個電(dian)(dian)極(ji)的(de)(de)配(pei)置同樣(yang)是可適用(yong)的(de)(de)。

圖2為示出車(che)載裝置100和根據(ju)在此公開的(de)實施方(fang)式1的(de)天線(xian)(xian)驅(qu)動(dong)裝置200的(de)電(dian)路(lu)配置的(de)示意圖。實施方(fang)式1的(de)天線(xian)(xian)驅(qu)動(dong)裝置200包括控(kong)制單元210、直流電(dian)源220、天線(xian)(xian)驅(qu)動(dong)電(dian)路(lu)230、升(sheng)壓/降(jiang)壓電(dian)路(lu)240以(yi)及人檢測電(dian)路(lu)280。車(che)載裝置100包括人檢測IC 110、天線(xian)(xian)120、整流二極(ji)管(guan)130、平滑(hua)電(dian)容器140和保護電(dian)阻150。

圖(tu)(tu)2所示的(de)(de)實(shi)施方(fang)式1的(de)(de)天線驅動電路200的(de)(de)特征在于(yu)：未在第一連接(jie)線301與天線驅動電路230之間連接(jie)電容(rong)器；以(yi)及升(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電路240僅升(sheng)高和(he)降低(di)至(zhi)第二連接(jie)線302的(de)(de)輸出。圖(tu)(tu)2所示的(de)(de)升(sheng)壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電路240可以(yi)具有(you)升(sheng)壓(ya)(ya)(ya)功能和(he)降壓(ya)(ya)(ya)功能中的(de)(de)任一者(zhe)或者(zhe)兩者(zhe)。現在參(can)照圖(tu)(tu)2，將(jiang)在下(xia)面描述實(shi)施方(fang)式1的(de)(de)配置和(he)操作(zuo)。

車(che)載裝(zhuang)(zhuang)置(zhi)100安(an)裝(zhuang)(zhuang)在(zai)車(che)輛(liang)開(kai)合(he)構件(jian)附(fu)(fu)近(jin)。例(li)如，在(zai)圖1中，車(che)載裝(zhuang)(zhuang)置(zhi)100安(an)裝(zhuang)(zhuang)在(zai)門(men)把手2的內部(bu)。與此相反，因為天(tian)(tian)線(xian)驅動裝(zhuang)(zhuang)置(zhi)200同時執行除了(le)車(che)輛(liang)開(kai)合(he)構件(jian)的鎖定(ding)和(he)解鎖以外的控制(zhi)，所以天(tian)(tian)線(xian)驅動裝(zhuang)(zhuang)置(zhi)200通(tong)常安(an)裝(zhuang)(zhuang)在(zai)離開(kai)車(che)輛(liang)開(kai)合(he)構件(jian)的位(wei)置(zhi)處，但是(shi)可以安(an)裝(zhuang)(zhuang)在(zai)車(che)輛(liang)開(kai)合(he)構件(jian)的附(fu)(fu)近(jin)。車(che)載裝(zhuang)(zhuang)置(zhi)100和(he)天(tian)(tian)線(xian)驅動裝(zhuang)(zhuang)置(zhi)200通(tong)過第一連(lian)接(jie)線(xian)301和(he)第二連(lian)接(jie)線(xian)302彼此電(dian)連(lian)接(jie)。

表(biao)1為指示當此處公開(kai)(kai)的(de)(de)實施方式1的(de)(de)天線驅動裝(zhuang)置200執行(xing)輸出信號的(de)(de)切換控制時，開(kai)(kai)關(guan)SW1至(zhi)開(kai)(kai)關(guan)SW6的(de)(de)導通/關(guan)斷(duan)狀態的(de)(de)邏輯(ji)值表(biao)。例如(ru)，可以將諸如(ru)FET(場(chang)效應晶體管)的(de)(de)晶體管元件(jian)用作開(kai)(kai)關(guan)SW1至(zhi)開(kai)(kai)關(guan)SW6。開(kai)(kai)關(guan)SW6可以與開(kai)(kai)關(guan)SW4共(gong)享。

表1

在天線未被驅動時，天線驅動裝置200的控制單元210根據表1所示的邏輯值表，將天線驅動電路230的開關SW1至開關SW4變成關斷狀態并且將開關SW5和開關SW6變成導通狀態。由此，直流電源220輸出的直流電源電壓V_DC經由第一連接線301被提供至車載裝置100的人檢測IC 110。參考電位V_GND被輸出至第二連接(jie)線302。

例如，可以將車載電池用作直流電源220。在由于車輛的指定車載電池的電壓值的標準而不能獲得期望的直流電源電壓V_DC的情況下，可以將不同于升壓/降壓電路240的另一升壓/降壓電路與車載電池電壓串聯連接以升高和降低電池電壓，使得獲得期望的直流電源電壓V_DC。

當鎖定傳感器電極和解鎖傳感器電極檢測到車輛的用戶與車輛開合構件上的人檢測區域的接觸時，人檢測IC 110將人檢測信號疊加在第一連接線301上并且向天線驅動裝置200的控制單元210告知該接觸。在此，將人檢測信號疊加在第一連接線301上的具體方法可以包括：例如，在人檢測IC 110的內部設置切換裝置和電阻元件并且使直流電源電壓V_DC在(zai)一定(ding)時段內(nei)下(xia)降(jiang)。在(zai)該情況下(xia)，可以(yi)根據(ju)電(dian)(dian)壓(ya)下(xia)降(jiang)的量值的差或(huo)者根據(ju)電(dian)(dian)壓(ya)下(xia)降(jiang)時段的長(chang)度來識別(bie)鎖(suo)定(ding)和(he)解鎖(suo)。

在使用人檢測電路280檢測到疊加在第一連接線301上的人檢測信號時，控制單元210將從天線驅動裝置200輸出的信號從直流電源電壓V_DC切換成天線驅動信號V_AC。具體地，控(kong)制單元210根據(ju)表1所示(shi)的邏輯值表，在天線(xian)(xian)120的諧振周期(qi)中(zhong)將開(kai)關(guan)SW5和開(kai)關(guan)SW6變成(cheng)關(guan)斷狀(zhuang)態并(bing)且(qie)對天線(xian)(xian)驅(qu)動電路(lu)230的開(kai)關(guan)SW1至(zhi)開(kai)關(guan)SW4執行至(zhi)狀(zhuang)態1和狀(zhuang)態2的切換控(kong)制。注意，實施方式1的天線(xian)(xian)驅(qu)動電路(lu)230不限于圖2所示(shi)的H橋電路(lu)，而是(shi)例如(ru)可以為半橋電路(lu)。

圖3A至圖3C為從根據在此公開的實施方式1的天線驅動裝置200輸出的天線驅動信號V_AC的波形的示意圖。實施方式1的天線驅動電路230通過將圖2所示的直流電源電壓V_DC和參考電位V_GND進行切換來生成要輸出至第一連接線301的第一天線驅動信號V_AC1。因此，輸出至第一連接線301的第一天線驅動信號V_AC1的導通電壓(ON voltage)是與直流電源電壓V_DC相同的(de)值，如圖3A中(zhong)的(de)波形。

與此相反，因為輸出至第二連接線302的第二天線驅動信號V_AC2是通過在由升壓/降壓電路240升高和降低成k倍(k為實數)的電壓與參考電位V_GND之間進行切換而被生成的，所以輸出至第二連接線302的第二天線驅動信號V_AC2的導通電壓為k乘以直流電源電壓V_DC，如圖(tu)3B中的波形(xing)。

因此，輸出至天線120的天線驅動信號V_AC＝V_AC1–V_AC2的幅度為(1+k)/2乘以直流電源電壓V_DC，如圖3C中的波形。為了易于理解，圖3A至圖3C中示出的天線驅動信號V_AC通過矩形波示出。然而，因為施加于天線120的天線驅動信號V_AC通過天線120的一系列諧振電路被濾波，所以天線驅動信號V_AC實際上(shang)具有(you)接(jie)近(jin)于(yu)正弦波的波形。

以該方式，在實施方式1中，即使當天線驅動信號V_AC的幅度通過升壓/降壓被改變時，輸出至第一連接線301的第一天線驅動信號V_AC1的導通電壓仍被保持為與由直流電源220輸出的直流電源電壓V_DC相同的值。因此，電流不會經由天線驅動電路230反向地朝向直流電源220流動，于是第一連接線301與天線驅動電路230之間的電容器不再是必要的。升壓/降壓電路240的升壓/降壓比率k按照以下進行確定：使得天線驅動信號V_AC的電壓寬度(1+k)×V_DC變為天線120所需的(de)電壓寬度。

與此相反，圖4A至圖4C為從相關技術的天線驅動裝置輸出的天線驅動信號V_AC的波形的示意圖。在相關技術的天線驅動裝置中，輸出至第一連接線301的第一天線驅動信號V_AC1和輸出至第二連接線302的第二天線驅動信號V_AC2二者均被升高和降低成k倍，如圖4A和圖4B中的波形。因此，輸出至天線120的天線驅動信號V_AC的幅度為k乘以直流電源電壓V_DC，如圖4C中的波形。

以該方式，在相關技術中，當天線驅動信號V_AC的幅度通過升壓/降壓被改變時，輸出至第一連接線301的第一天線驅動信號V_AC1的導通電壓變得與由直流電源220輸出的直流電源電壓V_DC不同。因此，需要具有(you)大電(dian)(dian)容的電(dian)(dian)容器以防止電(dian)(dian)流經(jing)由天線驅(qu)動電(dian)(dian)路230反向(xiang)地朝向(xiang)直流電(dian)(dian)源220流動。

在實施方式1中，可以省去具有大電容的電容器290，并且從而實現裝置成本的減小。因此，當至車載裝置100的輸出從天線驅動信號V_AC切換成直流電源電壓V_DC時，在電容器290中充電的天線驅動信號V_AC被疊加在直流電源電壓V_DC上并(bing)且因此(ci)不會被施加于車載裝(zhuang)置100的人檢(jian)測IC 110。因此(ci)，可以(yi)降低人檢(jian)測IC 110的額(e)定(ding)值以(yi)實現裝(zhuang)置成本的進一步減小。

天(tian)線(xian)120設置(zhi)有(you)串(chuan)聯諧(xie)振電路，該串(chuan)聯諧(xie)振電路包括串(chuan)聯連(lian)(lian)接(jie)的(de)諧(xie)振電容器(qi)121和天(tian)線(xian)線(xian)圈122。圖2示出天(tian)線(xian)120的(de)諧(xie)振電容器(qi)121側連(lian)(lian)接(jie)至(zhi)第(di)一連(lian)(lian)接(jie)線(xian)301并且(qie)天(tian)線(xian)120的(de)天(tian)線(xian)線(xian)圈122側連(lian)(lian)接(jie)至(zhi)第(di)二連(lian)(lian)接(jie)線(xian)302的(de)配置(zhi)。然而，并非(fei)必須考慮諧(xie)振電容器(qi)121和天(tian)線(xian)線(xian)圈122的(de)連(lian)(lian)接(jie)次序。

圖2所示的車載裝置100的天線120關于天線驅動信號V_AC諧振，以通過無線電與車輛的用戶所攜帶的便攜式設備(智能鑰匙)交換用于鎖定和解鎖車輛開合構件的認證信息，其中，天線驅動信號V_AC經由第一連接線301和第二連接線302從天線驅動裝置200輸出。可以使用已知技術來將認證信息調制至天線驅動信號V_AC。提供僅具(ju)有需要被(bei)驅動的(de)(de)發(fa)射功能(neng)的(de)(de)天線120并且提供具(ju)有不(bu)同的(de)(de)配置的(de)(de)接(jie)收天線的(de)(de)配置同樣是可適用(yong)的(de)(de)。

當從用戶攜帶的便攜式設備輸出的認證信息經過認證時，控制單元210根據表1所示的邏輯值表，將天線驅動裝置200的開關SW1至開關SW4變成關斷狀態并且將開關SW5和開關SW6變成導通狀態，以將來自天線驅動裝置200的輸出再從天線驅動信號V_AC切換成直流電源電壓V_DC。控制單元(yuan)210控制人(ren)檢(jian)測IC 110以(yi)(yi)鎖(suo)(suo)(suo)定(ding)和解(jie)鎖(suo)(suo)(suo)門(men)把(ba)手2或者使(shi)門(men)把(ba)手2進(jin)入(ru)潛在地可鎖(suo)(suo)(suo)定(ding)或可解(jie)鎖(suo)(suo)(suo)的(de)(de)狀態。例如，在上述人(ren)檢(jian)測信號的(de)(de)情況下采用的(de)(de)方法又可以(yi)(yi)用作控制單元(yuan)210與人(ren)檢(jian)測IC 110之(zhi)間的(de)(de)通信方法。

圖2所示的車載裝置100的整流二極管130、平滑電容器140以及保護電阻150構成用于天線驅動信號V_AC的AC/DC變換的整流電路。于是，天線驅動信號V_AC通過整流二極管130被整流并且通過平滑電容器140被平滑，并且電力被提供至人檢測IC 110。因此，人檢測IC 110即使在天線被驅動并且因而直流電源電壓V_DC未被(bei)提供至(zhi)人(ren)檢(jian)測IC 110的(de)情況下仍能夠(gou)繼續人(ren)檢(jian)測功能。

如上所述，在實施方式1中(zhong)，通(tong)過(guo)將直流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和參考電(dian)(dian)(dian)(dian)位進行切換(huan)來生成要輸(shu)出(chu)至第(di)一連(lian)接(jie)線(xian)(xian)(xian)(xian)——第(di)一連(lian)接(jie)線(xian)(xian)(xian)(xian)可切換(huan)地(di)輸(shu)出(chu)直流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)信號——的(de)天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)信號。因此(ci)，即使(shi)天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)信號的(de)幅度(du)改變，輸(shu)出(chu)至第(di)一連(lian)接(jie)線(xian)(xian)(xian)(xian)的(de)天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)信號的(de)導通(tong)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)仍被保(bao)持在與直流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)所輸(shu)出(chu)的(de)直流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)相同(tong)的(de)值處。因此(ci)，不必在第(di)一連(lian)接(jie)線(xian)(xian)(xian)(xian)與天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)電(dian)(dian)(dian)(dian)路之間設置(zhi)電(dian)(dian)(dian)(dian)容(rong)器。從(cong)而，獲得(de)如下低成本天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)裝(zhuang)置(zhi)，該(gai)天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)裝(zhuang)置(zhi)能(neng)夠在不使(shi)用具有大電(dian)(dian)(dian)(dian)容(rong)的(de)電(dian)(dian)(dian)(dian)容(rong)器的(de)情況下、從(cong)同(tong)一連(lian)接(jie)線(xian)(xian)(xian)(xian)可切換(huan)地(di)輸(shu)出(chu)直流(liu)(liu)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)和天(tian)線(xian)(xian)(xian)(xian)驅(qu)(qu)動(dong)信號。

實施方式2

圖(tu)5為示(shi)出車(che)載裝置(zhi)100和(he)根據在此公開的(de)(de)實施(shi)方式(shi)2的(de)(de)天(tian)線(xian)驅(qu)動(dong)裝置(zhi)200a的(de)(de)電(dian)路配置(zhi)的(de)(de)第一示(shi)意圖(tu)。圖(tu)5所示(shi)的(de)(de)實施(shi)方式(shi)2的(de)(de)天(tian)線(xian)驅(qu)動(dong)裝置(zhi)200a與圖(tu)2中示(shi)出并且在上(shang)面描述(shu)(shu)的(de)(de)實施(shi)方式(shi)1的(de)(de)天(tian)線(xian)驅(qu)動(dong)裝置(zhi)200的(de)(de)不(bu)同在于：設(she)置(zhi)了電(dian)流(liu)測量電(dian)路250和(he)天(tian)線(xian)電(dian)壓(ya)可變(bian)電(dian)路260，而不(bu)是升壓(ya)/降壓(ya)電(dian)路240。其他配置(zhi)和(he)操作(zuo)與上(shang)述(shu)(shu)實施(shi)方式(shi)1的(de)(de)那些(xie)配置(zhi)和(he)操作(zuo)相(xiang)同，因(yin)此將不(bu)再進行(xing)描述(shu)(shu)。

電流測量電路250測量在天線120中流動的天線電流I_AC。天線電壓可變電路260改變直流電源電壓V_DC或者升高和降低的電壓使得天線電流I_AC的測量值(zhi)變得與(yu)天線(xian)120需要(yao)的電(dian)流值(zhi)相等，并(bing)且將(jiang)改(gai)變的電(dian)壓輸(shu)出至天線(xian)驅動(dong)電(dian)路230。

控制單元210通過根據表1所示的邏輯值表，在天線120的諧振周期中對由天線電壓可變電路260改變的電壓和參考電位V_GND執行至狀態1和狀態2的切換控制，生成要輸出至第二連接線302的第二天線驅動信號V_AC2。因(yin)此(ci)，例(li)如(ru)，使得能夠進行(xing)天線120的(de)(de)(de)輸出的(de)(de)(de)幅度的(de)(de)(de)調制(zhi)(zhi)以及(ji)天線120中流動的(de)(de)(de)過(guo)電流的(de)(de)(de)檢測和抑制(zhi)(zhi)。

如至(zhi)此所(suo)述，根據實施(shi)方(fang)式2，通(tong)過對(dui)直(zhi)流電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)和參考電(dian)(dian)(dian)(dian)位(wei)(wei)執(zhi)行切換(huan)控制(zhi)來生(sheng)成要(yao)輸(shu)出至(zhi)第(di)一連(lian)(lian)接線(xian)的(de)天(tian)(tian)(tian)(tian)線(xian)驅動(dong)信號(hao)(hao)(hao)，并且(qie)通(tong)過對(dui)由(you)天(tian)(tian)(tian)(tian)線(xian)電(dian)(dian)(dian)(dian)壓(ya)可變(bian)電(dian)(dian)(dian)(dian)路所(suo)改變(bian)的(de)電(dian)(dian)(dian)(dian)壓(ya)和參考電(dian)(dian)(dian)(dian)位(wei)(wei)執(zhi)行切換(huan)控制(zhi)來生(sheng)成要(yao)輸(shu)出至(zhi)第(di)二連(lian)(lian)接線(xian)的(de)天(tian)(tian)(tian)(tian)線(xian)驅動(dong)信號(hao)(hao)(hao)。由(you)此，即(ji)使天(tian)(tian)(tian)(tian)線(xian)驅動(dong)信號(hao)(hao)(hao)的(de)幅度被暫時改變(bian)以(yi)控制(zhi)期望的(de)天(tian)(tian)(tian)(tian)線(xian)電(dian)(dian)(dian)(dian)流流至(zhi)天(tian)(tian)(tian)(tian)線(xian)，天(tian)(tian)(tian)(tian)線(xian)驅動(dong)信號(hao)(hao)(hao)的(de)導通(tong)電(dian)(dian)(dian)(dian)壓(ya)仍被保持在與直(zhi)流電(dian)(dian)(dian)(dian)源(yuan)所(suo)輸(shu)出的(de)直(zhi)流電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)相同的(de)值處。因此，在不(bu)使用具(ju)有大電(dian)(dian)(dian)(dian)容的(de)電(dian)(dian)(dian)(dian)容器的(de)情(qing)況下，獲得能夠將來自同一連(lian)(lian)接線(xian)的(de)輸(shu)出在直(zhi)流電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓(ya)與天(tian)(tian)(tian)(tian)線(xian)驅動(dong)信號(hao)(hao)(hao)之(zhi)間進(jin)行切換(huan)的(de)低成本天(tian)(tian)(tian)(tian)線(xian)驅動(dong)裝置。

注意，電流測量電路250并非必須如圖5所示與第二連接線302串聯連接，而是可以設置在其他位置處——只要可以測量天線電流I_AC即可(ke)。例(li)如(ru)，電(dian)(dian)流測量電(dian)(dian)路(lu)250可(ke)以(yi)(yi)(yi)如(ru)圖6所(suo)示與第一連(lian)(lian)(lian)接(jie)線(xian)(xian)301串(chuan)聯連(lian)(lian)(lian)接(jie)，可(ke)以(yi)(yi)(yi)如(ru)圖7所(suo)示與天線(xian)(xian)驅動電(dian)(dian)路(lu)230的電(dian)(dian)源(yuan)線(xian)(xian)串(chuan)聯連(lian)(lian)(lian)接(jie)，以(yi)(yi)(yi)及可(ke)以(yi)(yi)(yi)如(ru)圖8所(suo)示與天線(xian)(xian)驅動電(dian)(dian)路(lu)230的接(jie)地線(xian)(xian)串(chuan)聯連(lian)(lian)(lian)接(jie)。

特別地，關于圖5和圖6所示的配置，用于調節與第一連接線301或與第二連接線302串聯連接的天線120的阻抗的阻尼電阻可以同時用作用于測量天線電流I_AC的電阻。因此，實(shi)現了裝置成(cheng)本的減小。

實施方式2的配置可以同時采用上述實施方式1的配置。換言之，如果使用升壓/降壓電路240來升高和降低天線驅動信號V_AC并且然后使用天線電壓可變電路260來進一步改變天線驅動信號V_AC，則可以更加靈活地控制天線驅動信號V_AC的輸出。

與(yu)(yu)此相反，可(ke)(ke)以將天(tian)線(xian)電(dian)壓(ya)可(ke)(ke)變(bian)電(dian)路(lu)260與(yu)(yu)升壓(ya)/降(jiang)(jiang)壓(ya)電(dian)路(lu)240集成(cheng)以實現升壓(ya)/降(jiang)(jiang)壓(ya)電(dian)路(lu)240對升高(gao)/降(jiang)(jiang)低(di)電(dian)壓(ya)的可(ke)(ke)變(bian)控制(zhi)，或者可(ke)(ke)以將天(tian)線(xian)電(dian)壓(ya)可(ke)(ke)變(bian)電(dian)路(lu)260與(yu)(yu)天(tian)線(xian)驅(qu)動電(dian)路(lu)230集成(cheng)以實現對天(tian)線(xian)驅(qu)動電(dian)路(lu)230的開關SW1至開關SW4的導通(tong)電(dian)阻值和(he)占空比的可(ke)(ke)變(bian)控制(zhi)。

實施方式3

圖9為示出車載裝(zhuang)置(zhi)(zhi)100和(he)(he)根據此處公(gong)開的(de)(de)(de)(de)(de)實施(shi)(shi)方(fang)(fang)式(shi)3的(de)(de)(de)(de)(de)天線驅(qu)(qu)動裝(zhuang)置(zhi)(zhi)200e的(de)(de)(de)(de)(de)電(dian)(dian)路配(pei)置(zhi)(zhi)的(de)(de)(de)(de)(de)示意圖。圖9所示的(de)(de)(de)(de)(de)實施(shi)(shi)方(fang)(fang)式(shi)3的(de)(de)(de)(de)(de)天線驅(qu)(qu)動裝(zhuang)置(zhi)(zhi)200e與圖2所示的(de)(de)(de)(de)(de)上(shang)(shang)文描述的(de)(de)(de)(de)(de)實施(shi)(shi)方(fang)(fang)式(shi)1的(de)(de)(de)(de)(de)天線驅(qu)(qu)動裝(zhuang)置(zhi)(zhi)200的(de)(de)(de)(de)(de)不同在(zai)于：升壓/降壓電(dian)(dian)路240和(he)(he)保護二極管270連接在(zai)直流電(dian)(dian)源220與天線驅(qu)(qu)動電(dian)(dian)路230之間(jian)。其他配(pei)置(zhi)(zhi)與上(shang)(shang)述實施(shi)(shi)方(fang)(fang)式(shi)1的(de)(de)(de)(de)(de)那些配(pei)置(zhi)(zhi)相同，因此將不再(zai)進行描述。

在實施方式3中，升壓/降壓電路240升高和降低至第一連接線301的輸出和至第二連接線302的輸出二者。因此，輸出至第一連接線301的第一天線驅動信號V_AC1的導通電壓不會如在示例1中被保持在與直流電源電壓V_DC相同的值處。然而，示例3的天線驅動裝置200e設置有連接在升壓/降壓電路240與天線驅動電路230之間的保護二極管270，而不是電容器。因此，由直流電源電壓V_DC所(suo)引起的電(dian)流如(ru)在上(shang)述實施方式1中被阻(zu)止經由天線(xian)驅(qu)動電(dian)路230反向(xiang)地朝向(xiang)直(zhi)流電(dian)源220流動。因此，第一連(lian)接(jie)線(xian)301與天線(xian)驅(qu)動電(dian)路230之間的電(dian)容器(qi)是不必要的。

在(zai)實(shi)施方(fang)式3中，可以使(shi)用低成本(ben)的(de)(de)保(bao)護(hu)二(er)極管270而(er)不是(shi)具有大電容(rong)(rong)的(de)(de)電容(rong)(rong)器，因(yin)此實(shi)現了裝(zhuang)置成本(ben)的(de)(de)減小(xiao)。另外，通過將保(bao)護(hu)二(er)極管270連接至天線驅動電路230的(de)(de)直流電源220側，可以將必須設置在(zai)兩個位置——例如(ru)在(zai)JP T中第一(yi)(yi)連接線301和第二(er)連接線302——處的(de)(de)諸(zhu)如(ru)電容(rong)(rong)器的(de)(de)保(bao)護(hu)元件減小(xiao)至一(yi)(yi)個。因(yin)此，實(shi)現了裝(zhuang)置的(de)(de)進一(yi)(yi)步的(de)(de)成本(ben)減小(xiao)。

作為省去電容器的結果，當至車載裝置100的輸出從天線驅動信號V_AC切換成直流電源電壓V_DC時，在電容器中充電的天線驅動信號V_AC被疊加在直流電源電壓V_DC上并且從而不被施加于車載(zai)裝置100的(de)人檢測IC 110。因此，可以降低人檢測IC 110的(de)額定值以實現裝置成本的(de)進一步減小。

當與上述實施方式1比較時，在實施方式3中第一天線驅動信號V_AC1的導通電壓根據天線驅動信號V_AC的幅度的變化而變化。因此，在天線驅動信號V_AC顯著高于直流電源電壓V_DC的情況下，實施方式3的配置不利地需要增加人檢測IC的額定值以遵從天線驅動信號V_AC。然(ran)而，與此(ci)(ci)相反，升壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)電路240的升壓(ya)(ya)(ya)/降壓(ya)(ya)(ya)效率(lv)有利地(di)從(1+k)/2倍提(ti)高至k倍。因此(ci)(ci)，可以根據目標來選擇性地(di)采用(yong)實(shi)施(shi)方式(shi)3的配置和(he)實(shi)施(shi)方式(shi)1的配置。

如上所述，根據實施方式3，設(she)置(zhi)了連(lian)接至升壓(ya)/降壓(ya)電(dian)(dian)路和天(tian)(tian)線(xian)驅(qu)(qu)動(dong)電(dian)(dian)路的(de)保護(hu)二極管。從(cong)而，因(yin)(yin)為直流(liu)電(dian)(dian)源(yuan)(yuan)電(dian)(dian)壓(ya)的(de)電(dian)(dian)流(liu)被阻止經由天(tian)(tian)線(xian)驅(qu)(qu)動(dong)電(dian)(dian)路反向地(di)朝(chao)向直流(liu)電(dian)(dian)源(yuan)(yuan)流(liu)動(dong)，所以不(bu)必(bi)在(zai)第一連(lian)接線(xian)與天(tian)(tian)線(xian)驅(qu)(qu)動(dong)電(dian)(dian)路之間(jian)設(she)置(zhi)電(dian)(dian)容器。因(yin)(yin)此，獲得能(neng)夠在(zai)不(bu)使用具有大(da)電(dian)(dian)容的(de)電(dian)(dian)容器的(de)情況(kuang)下從(cong)同一連(lian)接線(xian)可切換地(di)輸出(chu)直流(liu)電(dian)(dian)源(yuan)(yuan)電(dian)(dian)壓(ya)和天(tian)(tian)線(xian)驅(qu)(qu)動(dong)信號的(de)低(di)成本天(tian)(tian)線(xian)驅(qu)(qu)動(dong)裝置(zhi)。

實施方式4

圖10為示(shi)出車載裝置(zhi)100和根據(ju)此(ci)處公(gong)開的(de)(de)(de)(de)(de)實(shi)施方(fang)(fang)式4的(de)(de)(de)(de)(de)天(tian)(tian)線驅動裝置(zhi)200f的(de)(de)(de)(de)(de)電(dian)(dian)(dian)路配(pei)置(zhi)的(de)(de)(de)(de)(de)示(shi)意圖。圖10所(suo)(suo)示(shi)的(de)(de)(de)(de)(de)實(shi)施方(fang)(fang)式4的(de)(de)(de)(de)(de)天(tian)(tian)線驅動裝置(zhi)200f與圖9所(suo)(suo)示(shi)的(de)(de)(de)(de)(de)上(shang)(shang)文(wen)描(miao)述(shu)的(de)(de)(de)(de)(de)實(shi)施方(fang)(fang)式3的(de)(de)(de)(de)(de)天(tian)(tian)線驅動裝置(zhi)200e的(de)(de)(de)(de)(de)不(bu)同在于：設置(zhi)了電(dian)(dian)(dian)流(liu)測量(liang)電(dian)(dian)(dian)路250和天(tian)(tian)線電(dian)(dian)(dian)壓可(ke)(ke)變電(dian)(dian)(dian)路260，而不(bu)是升壓/降壓電(dian)(dian)(dian)路240。其他配(pei)置(zhi)和操作(zuo)(zuo)與上(shang)(shang)述(shu)實(shi)施方(fang)(fang)式3的(de)(de)(de)(de)(de)那(nei)些配(pei)置(zhi)和操作(zuo)(zuo)相(xiang)同，因此(ci)將不(bu)再進行描(miao)述(shu)。電(dian)(dian)(dian)流(liu)測量(liang)電(dian)(dian)(dian)路250和天(tian)(tian)線電(dian)(dian)(dian)壓可(ke)(ke)變電(dian)(dian)(dian)路260的(de)(de)(de)(de)(de)操作(zuo)(zuo)與上(shang)(shang)述(shu)實(shi)施方(fang)(fang)式2的(de)(de)(de)(de)(de)那(nei)些操作(zuo)(zuo)相(xiang)同，因此(ci)將不(bu)進行描(miao)述(shu)。

控制單元210通過根據表1所示的邏輯值表，在天線120的諧振周期中對由天線電壓可變電路260所改變的電壓和參考電位V_GND執行至狀態1和狀態2的切換控制來生成要輸出至第一連接線301和第二連接線302的天線驅動信號V_AC1和V_AC2。因(yin)此，例如，使得能夠進行天線(xian)120的(de)(de)輸出的(de)(de)幅度的(de)(de)調(diao)制以及天線(xian)120中流動的(de)(de)過電流的(de)(de)抑(yi)制。

如上(shang)所(suo)(suo)述，根據實施方式(shi)4，設置了連(lian)接(jie)至天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)壓(ya)可變(bian)電(dian)(dian)(dian)(dian)路和天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動電(dian)(dian)(dian)(dian)路的(de)(de)保(bao)護二(er)極(ji)管。通過在由天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)壓(ya)可變(bian)電(dian)(dian)(dian)(dian)路所(suo)(suo)改(gai)變(bian)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)與(yu)參考電(dian)(dian)(dian)(dian)位(wei)之(zhi)間進行切換來生(sheng)成要輸出(chu)至第(di)一(yi)(yi)連(lian)接(jie)線(xian)(xian)(xian)(xian)(xian)和第(di)二(er)連(lian)接(jie)線(xian)(xian)(xian)(xian)(xian)的(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動信號(hao)。因此，即(ji)使(shi)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動信號(hao)的(de)(de)幅度被臨(lin)時改(gai)變(bian)以控制(zhi)期(qi)望(wang)的(de)(de)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)流(liu)流(liu)至天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)，由直流(liu)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)引起的(de)(de)電(dian)(dian)(dian)(dian)流(liu)仍被阻止經由天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動電(dian)(dian)(dian)(dian)路反向(xiang)地朝向(xiang)直流(liu)電(dian)(dian)(dian)(dian)源流(liu)動。因此，在不使(shi)用(yong)具有(you)大電(dian)(dian)(dian)(dian)容的(de)(de)電(dian)(dian)(dian)(dian)容器(qi)的(de)(de)情(qing)況下，獲得能夠將來自同一(yi)(yi)連(lian)接(jie)線(xian)(xian)(xian)(xian)(xian)的(de)(de)輸出(chu)在直流(liu)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)與(yu)天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動信號(hao)之(zhi)間進行切換的(de)(de)低成本天(tian)(tian)(tian)(tian)線(xian)(xian)(xian)(xian)(xian)驅動裝置。

注意，電流測量電路250并非必須如圖10所示與第二連接線302串聯連接，而是可以設置在其他位置處——只要可以按照與上述實施方式2相同的方式測量天線電流I_AC即可。例如，電(dian)(dian)(dian)(dian)流(liu)測量電(dian)(dian)(dian)(dian)路(lu)250可以(yi)如圖6所(suo)示(shi)(shi)與(yu)第一連(lian)接線(xian)301串(chuan)聯(lian)連(lian)接，可以(yi)如圖7所(suo)示(shi)(shi)與(yu)天線(xian)驅動電(dian)(dian)(dian)(dian)路(lu)230的電(dian)(dian)(dian)(dian)源(yuan)線(xian)串(chuan)聯(lian)連(lian)接，以(yi)及可以(yi)如圖8所(suo)示(shi)(shi)與(yu)天線(xian)驅動電(dian)(dian)(dian)(dian)路(lu)230的接地線(xian)串(chuan)聯(lian)連(lian)接。

實施方式4的配置可以同時采用上述實施方式3的配置。換言之，如果使用升壓/降壓電路240來升高和降低天線驅動信號V_AC并且然后使用天線電壓可變電路260來進一步改變天線驅動信號V_AC，則可以更加靈活地控制天線驅動信號V_AC的輸出。

與(yu)(yu)此相反(fan)，可(ke)(ke)以(yi)將天(tian)線電(dian)(dian)壓(ya)(ya)(ya)可(ke)(ke)變電(dian)(dian)路(lu)(lu)260與(yu)(yu)升(sheng)壓(ya)(ya)(ya)/降(jiang)壓(ya)(ya)(ya)電(dian)(dian)路(lu)(lu)240集(ji)成(cheng)以(yi)實現由升(sheng)壓(ya)(ya)(ya)/降(jiang)壓(ya)(ya)(ya)電(dian)(dian)路(lu)(lu)240執(zhi)行的(de)對(dui)升(sheng)高/降(jiang)低電(dian)(dian)壓(ya)(ya)(ya)的(de)可(ke)(ke)變控(kong)制，或者可(ke)(ke)以(yi)將天(tian)線電(dian)(dian)壓(ya)(ya)(ya)可(ke)(ke)變電(dian)(dian)路(lu)(lu)260與(yu)(yu)天(tian)線驅(qu)動電(dian)(dian)路(lu)(lu)230集(ji)成(cheng)以(yi)實現對(dui)天(tian)線驅(qu)動電(dian)(dian)路(lu)(lu)230的(de)開(kai)關SW1至開(kai)關SW4的(de)占(zhan)空比和導通電(dian)(dian)阻值的(de)可(ke)(ke)變控(kong)制。

在(zai)前面的(de)(de)(de)(de)說(shuo)明(ming)(ming)(ming)書中(zhong)已經描述了本(ben)發(fa)明(ming)(ming)(ming)的(de)(de)(de)(de)優選(xuan)實(shi)施方(fang)(fang)式(shi)和操作模式(shi)。然而(er)，意在(zai)受保護(hu)的(de)(de)(de)(de)本(ben)發(fa)明(ming)(ming)(ming)不應被(bei)解釋為(wei)限于(yu)所(suo)公(gong)開的(de)(de)(de)(de)特定實(shi)施方(fang)(fang)式(shi)。此外，本(ben)文(wen)所(suo)述的(de)(de)(de)(de)實(shi)施方(fang)(fang)式(shi)應被(bei)視為(wei)說(shuo)明(ming)(ming)(ming)性(xing)的(de)(de)(de)(de)而(er)非(fei)限制性(xing)的(de)(de)(de)(de)。在(zai)不偏離(li)本(ben)發(fa)明(ming)(ming)(ming)的(de)(de)(de)(de)精神的(de)(de)(de)(de)情況(kuang)下(xia)，可以(yi)由(you)其他人進(jin)行變更和改(gai)(gai)變，以(yi)及采(cai)用(yong)等同物(wu)。因此，明(ming)(ming)(ming)確意圖的(de)(de)(de)(de)是落入權利要求中(zhong)所(suo)限定的(de)(de)(de)(de)本(ben)發(fa)明(ming)(ming)(ming)的(de)(de)(de)(de)精神和范(fan)圍(wei)內的(de)(de)(de)(de)所(suo)有(you)這樣(yang)的(de)(de)(de)(de)變更、改(gai)(gai)變和等同物(wu)從而(er)均被(bei)包括。