補充一功率驅(qū)動單元電路

1、Designed By CYQDriver Units of Power功率驅(qū)動單元電路v普通LED驅(qū)動v超高亮白光LED驅(qū)動v繼電器驅(qū)動v數(shù)碼管驅(qū)動靜態(tài)驅(qū)動和動態(tài)驅(qū)動v驅(qū)動芯片2003的原理與應(yīng)用v可控硅驅(qū)動Designed By CYQDriver Units of Power功率驅(qū)動單元電路v光電耦合驅(qū)動v功率管驅(qū)動直流電機正反轉(zhuǎn)v繼電器驅(qū)動直流電機正反轉(zhuǎn)vN溝道MOS管簡單驅(qū)動vN溝道MOS管標(biāo)準(zhǔn)驅(qū)動vLM386典型功放電路Designed By CYQDriver Units of Power普通LED驅(qū)動v最亮?xí)r電流約為10mA,壓降約1.8VvTTL系列芯片驅(qū)動(拉電流0.4mA

2、,灌電流16mA)vCMOS系列芯片驅(qū)動(拉灌都為約0.8mA)12A74ALS0412A74ALS04LEDLED300300+5V123A4011123A4011LEDLED300300+5VDesigned By CYQDriver Units of Power超高亮白光LED驅(qū)動v最亮?xí)r電流約為20mA,壓降約為2.5Vv極限電流50mA,電流大于20mA時亮度增加不明顯120LED+5VDesigned By CYQDriver Units of Power繼電器驅(qū)動10K90131OPEN4CLOSE52MOVE3+12VI/O1K4007LEDv常見的繼電器工作電壓為+12V,+

3、24V,+5V等vLN4007用于吸收繼電器線圈斷電瞬間產(chǎn)生的感生電動勢,避免產(chǎn)生電火花干擾v9013最大CE極電流500mA,通過調(diào)基極阻值,使CE極電壓為0.2-0.3V,則9013為飽和態(tài), 9013在放大態(tài)發(fā)熱較大Designed By CYQDriver Units of Power數(shù)碼管靜態(tài)驅(qū)動a7b6c4d2e1f9g10dt5com3com8共陰a7b6c4d2e1f9g10dt5com3com8共陽1k 1k 1k 1k 1k 1k 1k 1k1k 1k 1k 1k 1k 1k 1k 1k+5V數(shù)碼管靜態(tài)顯示v靜態(tài)顯示時，數(shù)碼管的每段都有相同大小的電流持續(xù)通過v每段的段電流約

4、3mA,每段的管壓降約1.8VDesigned By CYQDriver Units of Power數(shù)碼管動態(tài)驅(qū)動v動態(tài)掃描時每一位數(shù)碼管只有1/2時間有電流流過，每位數(shù)碼管的平均段電流仍需約3mAv通電時電流應(yīng)為6mAv掃描頻率應(yīng)大于46Hza7b6c4d2e1f9g10dt5com3com8共陰510a7b6c4d2e1f9g10dt5com3com8共陰51010K9013I/O10K9013I/O數(shù)碼管動態(tài)掃描驅(qū)動Designed By CYQDriver Units of Power驅(qū)動芯片2003的原理與應(yīng)用v最大灌電流達0.5A,關(guān)態(tài)時最高承受電壓50VRESTNPNTNPNI

5、N1IN2IN3IN4IN5IN6IN7GND8COM9OUT10OUT11OUT12OUT13OUT14OUT15OUT16T20031OPEN4CLOSE52MOVE3JDQ+12VDesigned By CYQDriver Units of Power可控硅驅(qū)動v雙向可控硅BTA08/16/41當(dāng)流經(jīng)可控硅的電流很小或電流方向由正變負或由負變正時可控硅關(guān)斷觸發(fā)電流=10mAR1610/1WR493KR27200R30200C23104/400VC24104/400VTR9BTA41PortPort6421IC6MOC3061LED7220AC220AC+5VI/ODesigned By

6、CYQDriver Units of PowerMOC30XX可控硅型號參數(shù)帶載能力 是否過零用途MOC3021400V/100mA220V否電壓和功率控制MOC3041400V/100mA220V是功率開關(guān)控制MOC3061600V/100mA=220V是功率開關(guān)控制MOC3081800V/100mA=380V是功率開關(guān)控制Designed By CYQDriver Units of Power光控可控硅不過零控制t負載可控硅調(diào)壓AC DC不過零控制的特點t時刻控制信號來了，可控硅馬上導(dǎo)通的為不過零，便于實現(xiàn)調(diào)壓Designed By CYQDriver Units of Power光控可控

7、硅過零控制t開關(guān)負載可控硅AC DC過零控制 t時刻，控制信號來了，可控硅等到交流電過零時開控制信號沒了，可控硅等到交流電過零時斷實現(xiàn)控制開與斷，對電路擾動小。Designed By CYQDriver Units of Power光電耦合驅(qū)動v光電耦合主要用于電平轉(zhuǎn)換，信號隔離和不共地信號傳送等v發(fā)光管的電流1015mAvTLP521光控三極管電流約20mAvTIL113光控達林頓管電流可達150mA,可直接驅(qū)動一些小電流功率器件1243TLP5211243TLP52110k10k270270ININ+V+VOUTOUTDesigned By CYQDriver Units of Power

8、功率管驅(qū)動直流電機正反轉(zhuǎn)B2C371000u/35VR15k1R25k1T4TIP122T3TIP122T1TIP127T2TIP1271243PH2TLP5211243PH1TLP521C38224VVLED1LED2R28200R29200I/O1I/O2+V直流電機正反轉(zhuǎn)功率管驅(qū)動DIANJII/O1,I/O2為01和10時電機正反轉(zhuǎn)，為00時電機不轉(zhuǎn)，為11時功率管短路，為禁止態(tài)Designed By CYQDriver Units of Power功率管驅(qū)動直流電機正反轉(zhuǎn)R15k1R25k1T4TIP122T3TIP122T1TIP127T2TIP1271243PH2TLP52112

9、43PH1TLP521C38224LED1LED25k1R29200+V直流電機正反轉(zhuǎn)功率管驅(qū)動 禁止I/O口懸空DIANJI5k110k200+V+V+5V+5V10kI/O2I/O1I/O1,I/O2為01和10時電機正反轉(zhuǎn)，為00和11時電機不轉(zhuǎn)Designed By CYQDriver Units of Power繼電器驅(qū)動直流電機正反轉(zhuǎn)1k1k10/1W10k10kLEDLED9013901340074007104/250V1OPEN4CLOSE52MOVE3R-SPDT1OPEN4CLOSE52MOVE3R-SPDT+12V+12VI/O1I/O2+V+VDIANJII/O1,I/

10、O2為01和10是電機正反轉(zhuǎn)，為00和11時不轉(zhuǎn)Designed By CYQDriver Units of PowerN溝道MOS管簡法驅(qū)動v場效應(yīng)管屬電壓驅(qū)動器件v靜態(tài)驅(qū)動電流極小v驅(qū)動電壓要求較高，大多要求10-18V，少數(shù)型號5V也能驅(qū)動v工作頻率較低,最高到30KHz470/1W220MOS-N+VMOS管簡法驅(qū)動負載Designed By CYQDriver Units of PowerN溝道MOS管標(biāo)準(zhǔn)驅(qū)動v標(biāo)準(zhǔn)驅(qū)動法工作頻率較簡法驅(qū)動高并且取決于MOS管放電速度,MOS管結(jié)電容千p級別,放電時間常數(shù)為RC,約為數(shù)十ns,工作最高頻可達數(shù)百KHz10300FR107A966MOS-N+VMOS管標(biāo)準(zhǔn)驅(qū)動負載Designed By CYQDriver Units of PowerLM386簡介v音頻集成功放芯片v靜態(tài)功耗低,約為4mA,可用于電池供電v工作電壓范圍寬,4-12V或5-18Vv電壓增益可調(diào),20-200v功率可達0.75Wv外圍元件少1 3456782GAINGAIN-IN+INGNDBYPASSVSVOUTDesigned By CYQDriver