本發明涉(she)及一(yi)種用(yong)于加(jia)熱器的電路裝(zhuang)(zhuang)置(zhi)，具體涉(she)及一(yi)種pwm電源信號供電的恒(heng)功率驅(qu)動電路裝(zhuang)(zhuang)置(zhi)，屬于電路設計。

背景技術：

1、恒功率(lv)(lv)(lv)負載(zai)電(dian)(dian)(dian)路通(tong)(tong)常(chang)應用(yong)于對電(dian)(dian)(dian)壓(ya)波動較為敏感、需(xu)(xu)要(yao)穩(wen)定供(gong)電(dian)(dian)(dian)的(de)(de)(de)(de)設(she)備或(huo)系統，包(bao)括(kuo)計(ji)(ji)算機、電(dian)(dian)(dian)視(shi)、電(dian)(dian)(dian)動車充電(dian)(dian)(dian)器(qi)，工藝保溫(wen)(wen)管(guan)道(dao)、倉庫(ku)保溫(wen)(wen)恒溫(wen)(wen)加(jia)熱(re)器(qi)等領域。譬(pi)如(ru)在恒溫(wen)(wen)加(jia)熱(re)器(qi)的(de)(de)(de)(de)加(jia)熱(re)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)路設(she)計(ji)(ji)中，需(xu)(xu)要(yao)同(tong)時設(she)計(ji)(ji)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)路、控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)路以及負載(zai)加(jia)熱(re)電(dian)(dian)(dian)路，現有技術(shu)采用(yong)的(de)(de)(de)(de)方案(an)如(ru)下：供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)路用(yong)于給(gei)加(jia)熱(re)器(qi)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)路提(ti)供(gong)一(yi)組恒定的(de)(de)(de)(de)電(dian)(dian)(dian)源信號，包(bao)括(kuo)電(dian)(dian)(dian)源和地兩根(gen)(gen)線(xian)；控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)路用(yong)于給(gei)主(zhu)控(kong)(kong)制(zhi)(zhi)器(qi)提(ti)供(gong)所需(xu)(xu)要(yao)的(de)(de)(de)(de)控(kong)(kong)制(zhi)(zhi)信息，進而控(kong)(kong)制(zhi)(zhi)負載(zai)的(de)(de)(de)(de)加(jia)熱(re)功率(lv)(lv)(lv)，通(tong)(tong)常(chang)需(xu)(xu)要(yao)配置一(yi)組通(tong)(tong)信接(jie)口(kou)，如(ru)rs485通(tong)(tong)信接(jie)口(kou)或(huo)者rs232通(tong)(tong)信接(jie)口(kou)，包(bao)括(kuo)三根(gen)(gen)通(tong)(tong)信線(xian)；負載(zai)加(jia)熱(re)電(dian)(dian)(dian)路的(de)(de)(de)(de)恒功率(lv)(lv)(lv)控(kong)(kong)制(zhi)(zhi)需(xu)(xu)要(yao)采集加(jia)熱(re)器(qi)兩端的(de)(de)(de)(de)電(dian)(dian)(dian)壓(ya)，再配合加(jia)熱(re)器(qi)出廠提(ti)供(gong)的(de)(de)(de)(de)冷(leng)態電(dian)(dian)(dian)阻值，進而控(kong)(kong)制(zhi)(zhi)加(jia)熱(re)功率(lv)(lv)(lv)。

2、根據功率(lv)公式p＝i2r＝u2/r可以(yi)看出(chu)，恒(heng)功率(lv)的(de)(de)控(kong)制(zhi)(zhi)電(dian)(dian)(dian)阻r的(de)(de)穩定性要求很(hen)高，當一個負載的(de)(de)電(dian)(dian)(dian)阻可變且缺乏(fa)規范時(shi)，如加熱(re)器(qi)在加熱(re)過(guo)程中(zhong)，冷態(tai)電(dian)(dian)(dian)阻會(hui)變化的(de)(de)情況下，僅靠(kao)控(kong)制(zhi)(zhi)負載電(dian)(dian)(dian)壓(ya)或電(dian)(dian)(dian)流再配合加熱(re)器(qi)出(chu)廠提供的(de)(de)冷態(tai)電(dian)(dian)(dian)阻值(zhi)來實(shi)現恒(heng)功率(lv)控(kong)制(zhi)(zhi)是不可靠(kao)的(de)(de)，同時(shi)具(ju)有(you)風險和很(hen)大安全隱患。上述恒(heng)功率(lv)加熱(re)電(dian)(dian)(dian)路(lu)需要的(de)(de)控(kong)制(zhi)(zhi)信號也偏多，設(she)計復雜，不利于集成電(dian)(dian)(dian)路(lu)的(de)(de)設(she)計。

技術實現思路

1、針對現有(you)技術的(de)不足，現提供(gong)一種pwm電(dian)源信號(hao)供(gong)電(dian)的(de)恒功(gong)率(lv)驅動(dong)電(dian)路裝置，可(ke)以同時(shi)獲取(qu)電(dian)源信號(hao)和控(kong)制信號(hao)來進(jin)行恒功(gong)率(lv)控(kong)制，避免出現負載阻值偏差(cha)較大時(shi)無法保持(chi)恒功(gong)率(lv)狀態的(de)現象，同時(shi)簡化電(dian)路設計，控(kong)制精度高。

2、為(wei)(wei)(wei)(wei)了實現上述(shu)目，本技術一(yi)種(zhong)(zhong)pwm電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)恒(heng)功率驅(qu)動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)裝置(zhi)，包括電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)、整流(liu)(liu)(liu)儲能電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)管(guan)理模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、第一(yi)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、第二(er)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、第三低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)以(yi)及(ji)開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)，所述(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、整流(liu)(liu)(liu)儲能電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)管(guan)理模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)、開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)和負載(zai)依次串聯(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)配(pei)置(zhi)為(wei)(wei)(wei)(wei)輸(shu)出(chu)pwm特性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)，整流(liu)(liu)(liu)儲能電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)配(pei)置(zhi)為(wei)(wei)(wei)(wei)將(jiang)可(ke)變的(de)pwm電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)整流(liu)(liu)(liu)成(cheng)穩(wen)定的(de)可(ke)持續輸(shu)出(chu)的(de)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)管(guan)理模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)配(pei)置(zhi)為(wei)(wei)(wei)(wei)將(jiang)一(yi)種(zhong)(zhong)可(ke)持續輸(shu)出(chu)的(de)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)轉(zhuan)換為(wei)(wei)(wei)(wei)兩(liang)種(zhong)(zhong)不同電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)可(ke)持續輸(shu)出(chu)的(de)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)(xin)號(hao)(hao)，分別用于給控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)和有源(yuan)(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)進行供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，第一(yi)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)設置(zhi)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)正極(ji)與(yu)控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)連(lian)(lian)接的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)上，配(pei)置(zhi)為(wei)(wei)(wei)(wei)提(ti)取pwm特性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)控(kong)(kong)(kong)(kong)(kong)制(zhi)信(xin)(xin)(xin)號(hao)(hao)，第二(er)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)和第三低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)分別并聯(lian)在開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)與(yu)負載(zai)之間連(lian)(lian)接的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)上，第二(er)低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)配(pei)置(zhi)為(wei)(wei)(wei)(wei)采(cai)集負載(zai)兩(liang)端(duan)的(de)平均電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號(hao)(hao)并輸(shu)送至(zhi)控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)，第三低(di)(di)通(tong)(tong)濾(lv)(lv)(lv)波(bo)(bo)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)模(mo)(mo)(mo)(mo)塊(kuai)(kuai)(kuai)(kuai)配(pei)置(zhi)為(wei)(wei)(wei)(wei)采(cai)集負載(zai)兩(liang)端(duan)的(de)平均電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)信(xin)(xin)(xin)號(hao)(hao)并輸(shu)送至(zhi)控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)，控(kong)(kong)(kong)(kong)(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)(qi)根(gen)據(ju)pwm特性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)控(kong)(kong)(kong)(kong)(kong)制(zhi)信(xin)(xin)(xin)號(hao)(hao)、負載(zai)兩(liang)端(duan)的(de)平均電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)信(xin)(xin)(xin)號(hao)(hao)以(yi)及(ji)負載(zai)兩(liang)端(duan)的(de)平均電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)信(xin)(xin)(xin)號(hao)(hao)控(kong)(kong)(kong)(kong)(kong)制(zhi)負載(zai)兩(liang)端(duan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)使(shi)負載(zai)兩(liang)端(duan)保持恒(heng)功率。

3、具(ju)體的(de)(de)(de)，流儲能電(dian)(dian)(dian)(dian)路(lu)模(mo)塊(kuai)包括二極(ji)(ji)管(guan)d1、電(dian)(dian)(dian)(dian)容c1和電(dian)(dian)(dian)(dian)阻r1，電(dian)(dian)(dian)(dian)阻r1并聯在外部輸入的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)的(de)(de)(de)正極(ji)(ji)和負極(ji)(ji)之間，二極(ji)(ji)管(guan)d1的(de)(de)(de)第2端與(yu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)的(de)(de)(de)正極(ji)(ji)相連，二極(ji)(ji)管(guan)d1的(de)(de)(de)第1端同時與(yu)電(dian)(dian)(dian)(dian)容c1的(de)(de)(de)正極(ji)(ji)和開關(guan)電(dian)(dian)(dian)(dian)路(lu)輸入端相連，電(dian)(dian)(dian)(dian)容c1的(de)(de)(de)負極(ji)(ji)與(yu)電(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊(kuai)的(de)(de)(de)負極(ji)(ji)相連。

4、具體的(de)，第一(yi)低(di)通(tong)濾(lv)波(bo)器(qi)電(dian)路模(mo)塊包括分壓(ya)(ya)電(dian)阻(zu)i、一(yi)階無(wu)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i和(he)二階有(you)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i，分壓(ya)(ya)電(dian)阻(zu)i并聯在電(dian)源(yuan)(yuan)(yuan)(yuan)模(mo)塊的(de)正極(ji)和(he)負極(ji)之間(jian)，一(yi)階無(wu)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i和(he)二階有(you)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i依(yi)次串聯在分壓(ya)(ya)電(dian)阻(zu)i之后，pwm特性電(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)號經分壓(ya)(ya)電(dian)阻(zu)i分壓(ya)(ya)、一(yi)階無(wu)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i和(he)二階有(you)源(yuan)(yuan)(yuan)(yuan)低(di)通(tong)濾(lv)波(bo)器(qi)i的(de)濾(lv)波(bo)調(diao)理后將pwm特性電(dian)源(yuan)(yuan)(yuan)(yuan)信(xin)(xin)號的(de)占(zhan)空比(bi)信(xin)(xin)息輸入控制器(qi)。

5、具體的，分壓電(dian)阻(zu)(zu)(zu)i包括電(dian)阻(zu)(zu)(zu)r25和電(dian)阻(zu)(zu)(zu)r35，電(dian)源模塊正極與電(dian)阻(zu)(zu)(zu)r25的一(yi)(yi)端相連(lian)，電(dian)阻(zu)(zu)(zu)r25的另一(yi)(yi)端同(tong)時與一(yi)(yi)階(jie)無源低通濾波器(qi)的輸入(ru)端、電(dian)阻(zu)(zu)(zu)r35的一(yi)(yi)端相連(lian)，電(dian)阻(zu)(zu)(zu)r35的另一(yi)(yi)端接(jie)地(di)；

6、一階(jie)(jie)無(wu)源低通濾(lv)波器i包括電(dian)(dian)(dian)(dian)阻(zu)r26和電(dian)(dian)(dian)(dian)容(rong)c25，電(dian)(dian)(dian)(dian)阻(zu)r26的(de)一端與電(dian)(dian)(dian)(dian)阻(zu)r25的(de)另一端相(xiang)連，電(dian)(dian)(dian)(dian)阻(zu)r26的(de)另一端同(tong)時與電(dian)(dian)(dian)(dian)容(rong)c25的(de)正極、二階(jie)(jie)有源低通濾(lv)波器i的(de)輸入端相(xiang)連，電(dian)(dian)(dian)(dian)容(rong)c25的(de)負極接地(di)；

7、二階有源低通(tong)濾波器(qi)i包括電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r27、電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r28、電(dian)(dian)(dian)(dian)容c21、電(dian)(dian)(dian)(dian)容c23和運(yun)(yun)算(suan)放大器(qi)u5，電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r27的一端(duan)與(yu)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r26的另一端(duan)相(xiang)(xiang)(xiang)連(lian)，電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r27的另一端(duan)同(tong)時與(yu)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r28的一端(duan)、電(dian)(dian)(dian)(dian)容c21的正(zheng)極(ji)相(xiang)(xiang)(xiang)連(lian)，電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)r28的另一端(duan)同(tong)時與(yu)運(yun)(yun)算(suan)放大器(qi)u5的第1端(duan)、電(dian)(dian)(dian)(dian)容c23的正(zheng)極(ji)相(xiang)(xiang)(xiang)連(lian)，電(dian)(dian)(dian)(dian)容c23的負(fu)極(ji)同(tong)時與(yu)運(yun)(yun)算(suan)放大器(qi)u5的第2端(duan)、接地端(duan)相(xiang)(xiang)(xiang)連(lian)，電(dian)(dian)(dian)(dian)容c21的負(fu)極(ji)同(tong)時與(yu)運(yun)(yun)算(suan)放大器(qi)u5的第3端(duan)和第4端(duan)相(xiang)(xiang)(xiang)連(lian)，運(yun)(yun)算(suan)放大器(qi)u5的第5端(duan)與(yu)電(dian)(dian)(dian)(dian)源管理模塊中(zhong)電(dian)(dian)(dian)(dian)源軌vcc_3v3相(xiang)(xiang)(xiang)連(lian)；

8、第(di)一低(di)通濾波(bo)器電(dian)路模(mo)塊還包括連接在運算放大器u5外(wai)接電(dian)源(yuan)(yuan)端的(de)退(tui)耦電(dian)容(rong)i，退(tui)耦電(dian)容(rong)i包括同時并聯(lian)在電(dian)源(yuan)(yuan)管(guan)理模(mo)塊中(zhong)電(dian)源(yuan)(yuan)軌vcc_3v3和接地(di)端之間的(de)電(dian)容(rong)c29和電(dian)容(rong)c19；

9、二階有源(yuan)低(di)通濾波(bo)器i輸出端(duan)與控制器輸入端(duan)之(zhi)間還連接有保(bao)護性分壓電(dian)(dian)阻i，保(bao)護性分壓電(dian)(dian)阻i包括電(dian)(dian)阻r23和電(dian)(dian)阻r34，電(dian)(dian)阻r23的(de)(de)一端(duan)與運算放(fang)大器u5的(de)(de)第(di)4端(duan)相連，電(dian)(dian)阻r23的(de)(de)另一端(duan)同(tong)時與電(dian)(dian)阻r34的(de)(de)一端(duan)、控制器輸入端(duan)相連，電(dian)(dian)阻r34的(de)(de)另一端(duan)接地。

10、具體(ti)的，第二(er)低(di)(di)通(tong)(tong)濾波(bo)器(qi)電(dian)路模塊包(bao)括分(fen)壓(ya)(ya)電(dian)阻(zu)(zu)ii、一(yi)階無(wu)源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii和二(er)階有源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii，分(fen)壓(ya)(ya)電(dian)阻(zu)(zu)ii并聯在(zai)負載(zai)輸(shu)入端(duan)(duan)(duan)和接地端(duan)(duan)(duan)之間，一(yi)階無(wu)源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii和二(er)階有源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii依(yi)次串聯在(zai)分(fen)壓(ya)(ya)電(dian)阻(zu)(zu)ii之后，向負載(zai)輸(shu)入的電(dian)源(yuan)(yuan)(yuan)信號經(jing)分(fen)壓(ya)(ya)電(dian)阻(zu)(zu)ii分(fen)壓(ya)(ya)、一(yi)階無(wu)源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii和二(er)階有源(yuan)(yuan)(yuan)低(di)(di)通(tong)(tong)濾波(bo)器(qi)ii的濾波(bo)調理后提(ti)取負載(zai)兩端(duan)(duan)(duan)的平均電(dian)壓(ya)(ya)信號輸(shu)入控制器(qi)。

11、具(ju)體的(de)，分壓電(dian)(dian)(dian)阻(zu)(zu)ii包括電(dian)(dian)(dian)阻(zu)(zu)r29和電(dian)(dian)(dian)阻(zu)(zu)r36，電(dian)(dian)(dian)阻(zu)(zu)r29的(de)一(yi)端與(yu)經整(zheng)流(liu)(liu)儲能電(dian)(dian)(dian)路模塊整(zheng)流(liu)(liu)后(hou)的(de)電(dian)(dian)(dian)源(yuan)信(xin)號相連，電(dian)(dian)(dian)阻(zu)(zu)r29的(de)另一(yi)端同(tong)時(shi)與(yu)電(dian)(dian)(dian)阻(zu)(zu)r36的(de)一(yi)端、一(yi)階(jie)無源(yuan)低通(tong)濾波器ii的(de)輸入(ru)端相連，電(dian)(dian)(dian)阻(zu)(zu)r36的(de)另一(yi)端接(jie)地(di)；

12、一(yi)階(jie)無源低通濾波(bo)器(qi)ii包括(kuo)電(dian)阻(zu)r30和電(dian)容(rong)c26，電(dian)阻(zu)r30的一(yi)端(duan)與(yu)電(dian)阻(zu)r29的另一(yi)端(duan)相連，電(dian)阻(zu)r30的另一(yi)端(duan)同時(shi)與(yu)電(dian)容(rong)c26的正極(ji)、二(er)階(jie)有(you)源低通濾波(bo)器(qi)ii的輸入端(duan)相連，電(dian)容(rong)c26的負極(ji)接(jie)地；

13、二階有源(yuan)低通濾波器(qi)(qi)ii包括電(dian)阻(zu)r31、電(dian)阻(zu)r32、電(dian)容(rong)(rong)c22、電(dian)容(rong)(rong)c24和(he)運(yun)(yun)算(suan)(suan)放大(da)(da)器(qi)(qi)u6，電(dian)阻(zu)r31的(de)(de)(de)(de)(de)一(yi)(yi)端(duan)(duan)(duan)與電(dian)阻(zu)r30的(de)(de)(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)(duan)相(xiang)連(lian)(lian)，電(dian)阻(zu)r31的(de)(de)(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)(duan)同(tong)時(shi)(shi)與電(dian)阻(zu)r32的(de)(de)(de)(de)(de)一(yi)(yi)端(duan)(duan)(duan)、電(dian)容(rong)(rong)c22的(de)(de)(de)(de)(de)正極相(xiang)連(lian)(lian)，電(dian)阻(zu)r32的(de)(de)(de)(de)(de)另(ling)一(yi)(yi)端(duan)(duan)(duan)同(tong)時(shi)(shi)與運(yun)(yun)算(suan)(suan)放大(da)(da)器(qi)(qi)u6的(de)(de)(de)(de)(de)第1端(duan)(duan)(duan)、電(dian)容(rong)(rong)c24的(de)(de)(de)(de)(de)正極相(xiang)連(lian)(lian)，電(dian)容(rong)(rong)c24的(de)(de)(de)(de)(de)負(fu)(fu)極同(tong)時(shi)(shi)與運(yun)(yun)算(suan)(suan)放大(da)(da)器(qi)(qi)u6的(de)(de)(de)(de)(de)第2端(duan)(duan)(duan)、接地端(duan)(duan)(duan)相(xiang)連(lian)(lian)，電(dian)容(rong)(rong)c22的(de)(de)(de)(de)(de)負(fu)(fu)極同(tong)時(shi)(shi)與運(yun)(yun)算(suan)(suan)放大(da)(da)器(qi)(qi)u6的(de)(de)(de)(de)(de)第3端(duan)(duan)(duan)和(he)第4端(duan)(duan)(duan)相(xiang)連(lian)(lian)，運(yun)(yun)算(suan)(suan)放大(da)(da)器(qi)(qi)u6的(de)(de)(de)(de)(de)第5端(duan)(duan)(duan)與電(dian)源(yuan)管理模塊(kuai)中電(dian)源(yuan)軌vcc_3v3相(xiang)連(lian)(lian)；

14、第二低通濾波器(qi)(qi)電(dian)路(lu)模塊還(huan)包括連接在(zai)運算放大器(qi)(qi)u6外接電(dian)源端的(de)退(tui)耦電(dian)容ii，退(tui)耦電(dian)容ii包括同時并聯在(zai)電(dian)源管(guan)理模塊中電(dian)源軌vcc_3v3和接地端之間的(de)電(dian)容c28和電(dian)容c20；

15、二(er)階有源低通濾波(bo)器ii輸(shu)出端(duan)與(yu)(yu)控(kong)制器輸(shu)入(ru)端(duan)之(zhi)間還連(lian)接有保(bao)護性分壓電阻(zu)(zu)ii，保(bao)護性分壓電阻(zu)(zu)ii包括電阻(zu)(zu)r24和電阻(zu)(zu)r33，電阻(zu)(zu)r24的(de)(de)一(yi)(yi)端(duan)與(yu)(yu)運算放大器u6的(de)(de)第4端(duan)相連(lian)，電阻(zu)(zu)r24的(de)(de)另一(yi)(yi)端(duan)同時與(yu)(yu)電阻(zu)(zu)r33的(de)(de)一(yi)(yi)端(duan)、控(kong)制器輸(shu)入(ru)端(duan)相連(lian)，電阻(zu)(zu)r33的(de)(de)另一(yi)(yi)端(duan)接地。

16、具體的，第三低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)電路模塊包括電流取(qu)樣電阻(zu)(zu)(zu)、分(fen)壓電阻(zu)(zu)(zu)iii、一階(jie)無(wu)源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii和二(er)階(jie)有源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii，電流取(qu)樣電阻(zu)(zu)(zu)和分(fen)壓電阻(zu)(zu)(zu)iii分(fen)別并聯(lian)在負(fu)載輸(shu)(shu)入(ru)端和接(jie)地端之間，一階(jie)無(wu)源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii和二(er)階(jie)有源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii依次(ci)串聯(lian)在分(fen)壓電阻(zu)(zu)(zu)ii之后，向(xiang)負(fu)載輸(shu)(shu)入(ru)的電源(yuan)(yuan)信(xin)號(hao)經電流取(qu)樣電阻(zu)(zu)(zu)取(qu)樣、分(fen)壓電阻(zu)(zu)(zu)iii分(fen)壓、一階(jie)無(wu)源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii和二(er)階(jie)有源(yuan)(yuan)低(di)通(tong)(tong)濾(lv)(lv)(lv)(lv)波器(qi)(qi)iii的濾(lv)(lv)(lv)(lv)波調理(li)后提取(qu)負(fu)載兩(liang)端的平均電流信(xin)號(hao)輸(shu)(shu)入(ru)控制器(qi)(qi)。

17、具體的(de)，電(dian)(dian)(dian)流取樣電(dian)(dian)(dian)阻為電(dian)(dian)(dian)阻r15，電(dian)(dian)(dian)阻r15的(de)一(yi)端(duan)同時與經整(zheng)流儲能電(dian)(dian)(dian)路模塊整(zheng)流后(hou)的(de)電(dian)(dian)(dian)源信(xin)號、分壓(ya)電(dian)(dian)(dian)阻iii的(de)輸入(ru)端(duan)相連，電(dian)(dian)(dian)阻r15的(de)另(ling)一(yi)端(duan)接(jie)地；

18、分壓電(dian)阻(zu)iii包(bao)括電(dian)阻(zu)r9和(he)電(dian)阻(zu)r14，電(dian)阻(zu)r9的(de)(de)一(yi)端與電(dian)阻(zu)r15的(de)(de)一(yi)端相(xiang)連(lian)，電(dian)阻(zu)r9的(de)(de)另(ling)一(yi)端同時與一(yi)階無源低(di)通濾(lv)波器iii的(de)(de)輸入(ru)端、電(dian)阻(zu)r14的(de)(de)一(yi)端相(xiang)連(lian)，電(dian)阻(zu)r14的(de)(de)另(ling)一(yi)端接(jie)地；

19、一(yi)(yi)階無源(yuan)低通濾波(bo)器(qi)iii包括電(dian)阻r10和電(dian)容(rong)c16，電(dian)阻r10的(de)一(yi)(yi)端(duan)與電(dian)阻r9的(de)另一(yi)(yi)端(duan)相連(lian)，電(dian)阻r10的(de)另一(yi)(yi)端(duan)同(tong)時與二階有源(yuan)低通濾波(bo)器(qi)iii的(de)輸入端(duan)、電(dian)容(rong)c16的(de)正極相連(lian)，電(dian)容(rong)c16的(de)負極接地(di)；

20、二(er)階(jie)有(you)源(yuan)(yuan)(yuan)低通(tong)濾波器(qi)iii包括電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r18、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r19、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r12、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r13、電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c17、電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c18和運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r18的(de)(de)(de)(de)(de)一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)與(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r10的(de)(de)(de)(de)(de)另一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r18的(de)(de)(de)(de)(de)另一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)同(tong)時與(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r19的(de)(de)(de)(de)(de)一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c18的(de)(de)(de)(de)(de)正極(ji)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r19的(de)(de)(de)(de)(de)另一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)同(tong)時與(yu)(yu)(yu)運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4的(de)(de)(de)(de)(de)第(di)1端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c17的(de)(de)(de)(de)(de)正極(ji)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c18的(de)(de)(de)(de)(de)負(fu)極(ji)同(tong)時與(yu)(yu)(yu)運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4的(de)(de)(de)(de)(de)第(di)1端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r13的(de)(de)(de)(de)(de)一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c17的(de)(de)(de)(de)(de)負(fu)極(ji)同(tong)時與(yu)(yu)(yu)運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4的(de)(de)(de)(de)(de)第(di)2端(duan)(duan)(duan)(duan)、接地(di)(di)端(duan)(duan)(duan)(duan)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r13的(de)(de)(de)(de)(de)另一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)同(tong)時與(yu)(yu)(yu)運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4的(de)(de)(de)(de)(de)第(di)3端(duan)(duan)(duan)(duan)、電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r12的(de)(de)(de)(de)(de)一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)相(xiang)連(lian)，電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)r12的(de)(de)(de)(de)(de)另一(yi)(yi)(yi)端(duan)(duan)(duan)(duan)接地(di)(di)，運(yun)(yun)(yun)算(suan)(suan)放(fang)大(da)器(qi)u4的(de)(de)(de)(de)(de)第(di)5端(duan)(duan)(duan)(duan)與(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)管理模(mo)塊中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)軌(gui)vcc_3v3相(xiang)連(lian)；

21、第三低通(tong)濾波器(qi)電(dian)路模塊(kuai)(kuai)還包括連接(jie)(jie)在(zai)(zai)運(yun)算放(fang)大器(qi)u4外接(jie)(jie)電(dian)源(yuan)(yuan)端的退耦(ou)電(dian)容(rong)iii，退耦(ou)電(dian)容(rong)iii包括同時并聯在(zai)(zai)電(dian)源(yuan)(yuan)管理(li)模塊(kuai)(kuai)中電(dian)源(yuan)(yuan)軌vcc_3v3和接(jie)(jie)地(di)端之間(jian)的電(dian)容(rong)c27和電(dian)容(rong)c14；

22、二(er)階有(you)源低通濾波器iii輸(shu)出端與控制器輸(shu)入端之間(jian)還連接有(you)保護性(xing)分壓(ya)電阻(zu)(zu)(zu)iii，保護性(xing)分壓(ya)電阻(zu)(zu)(zu)iii包括(kuo)電阻(zu)(zu)(zu)r17和電阻(zu)(zu)(zu)r20，電阻(zu)(zu)(zu)r17的(de)(de)一端與運(yun)算放大器u4的(de)(de)第4端相(xiang)連，電阻(zu)(zu)(zu)r17的(de)(de)另一端同(tong)時與電阻(zu)(zu)(zu)r20的(de)(de)一端、控制器輸(shu)入端相(xiang)連，電阻(zu)(zu)(zu)r20的(de)(de)另一端接地。

23、開(kai)關電(dian)(dian)路包括分壓電(dian)(dian)阻(zu)、單向(xiang)保護性二極管和開(kai)關，開(kai)關電(dian)(dian)路由控制(zhi)器輸出的p0.4/pwm1控制(zhi)通斷(duan)，當(dang)p0.4/pwm1輸出高(gao)電(dian)(dian)平時，開(kai)關導通，當(dang)p0.4/pwm1輸出低電(dian)(dian)平時，開(kai)關關閉。

24、本發明采(cai)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)設(she)計使功率(lv)控(kong)(kong)制(zhi)(zhi)不依賴于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻的(de)大(da)小，而是利用pwm可變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)對負(fu)載和(he)(he)(he)控(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)進行(xing)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，并通過整流儲(chu)能電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)模(mo)塊(kuai)(kuai)對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)信號(hao)進行(xing)整流儲(chu)能，向負(fu)載放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)產生不依賴于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻的(de)恒定能量，第(di)一低(di)通濾(lv)波(bo)器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)模(mo)塊(kuai)(kuai)實時(shi)采(cai)集(ji)pwm電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)信號(hao)的(de)占空(kong)比，并通過調節(jie)pwm電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)信號(hao)的(de)占空(kong)比來(lai)調節(jie)輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)平均功率(lv)，精準性高，輸出功率(lv)大(da)，易于(yu)實現(xian)，控(kong)(kong)制(zhi)(zhi)范(fan)圍廣。第(di)二低(di)通濾(lv)波(bo)器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)模(mo)塊(kuai)(kuai)和(he)(he)(he)第(di)三低(di)通濾(lv)波(bo)器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)模(mo)塊(kuai)(kuai)實時(shi)采(cai)集(ji)負(fu)載兩端的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流值(zhi)和(he)(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值(zhi)輸送至(zhi)控(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)，控(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)通過控(kong)(kong)制(zhi)(zhi)輸入負(fu)載的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)信號(hao)從而保持恒定功率(lv)狀(zhuang)態，整體線路(lu)(lu)(lu)布置(zhi)(zhi)僅需(xu)要(yao)2根電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)線既可實現(xian)負(fu)載和(he)(he)(he)控(kong)(kong)制(zhi)(zhi)器(qi)(qi)(qi)的(de)雙重供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，同時(shi)無需(xu)額外設(she)置(zhi)(zhi)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)，極大(da)的(de)簡化(hua)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)設(she)計。