补充一功率驱动单元电路

1、Designed By CYQDriver Units of Power功率驱动单元电路v普通LED驱动v超高亮白光LED驱动v继电器驱动v数码管驱动静态驱动和动态驱动v驱动芯片2003的原理与应用v可控硅驱动Designed By CYQDriver Units of Power功率驱动单元电路v光电耦合驱动v功率管驱动直流电机正反转v继电器驱动直流电机正反转vN沟道MOS管简单驱动vN沟道MOS管标准驱动vLM386典型功放电路Designed By CYQDriver Units of Power普通LED驱动v最亮时电流约为10mA,压降约1.8VvTTL系列芯片驱动(拉电流0.4mA

2、,灌电流16mA)vCMOS系列芯片驱动(拉灌都为约0.8mA)12A74ALS0412A74ALS04LEDLED300300+5V123A4011123A4011LEDLED300300+5VDesigned By CYQDriver Units of Power超高亮白光LED驱动v最亮时电流约为20mA,压降约为2.5Vv极限电流50mA,电流大于20mA时亮度增加不明显120LED+5VDesigned By CYQDriver Units of Power继电器驱动10K90131OPEN4CLOSE52MOVE3+12VI/O1K4007LEDv常见的继电器工作电压为+12V,+

3、24V,+5V等vLN4007用于吸收继电器线圈断电瞬间产生的感生电动势,避免产生电火花干扰v9013最大CE极电流500mA,通过调基极阻值,使CE极电压为0.2-0.3V,则9013为饱和态, 9013在放大态发热较大Designed By CYQDriver Units of Power数码管静态驱动a7b6c4d2e1f9g10dt5com3com8共阴a7b6c4d2e1f9g10dt5com3com8共阳1k 1k 1k 1k 1k 1k 1k 1k1k 1k 1k 1k 1k 1k 1k 1k+5V数码管静态显示v静态显示时，数码管的每段都有相同大小的电流持续通过v每段的段电流约

4、3mA,每段的管压降约1.8VDesigned By CYQDriver Units of Power数码管动态驱动v动态扫描时每一位数码管只有1/2时间有电流流过，每位数码管的平均段电流仍需约3mAv通电时电流应为6mAv扫描频率应大于46Hza7b6c4d2e1f9g10dt5com3com8共阴510a7b6c4d2e1f9g10dt5com3com8共阴51010K9013I/O10K9013I/O数码管动态扫描驱动Designed By CYQDriver Units of Power驱动芯片2003的原理与应用v最大灌电流达0.5A,关态时最高承受电压50VRESTNPNTNPNI

5、N1IN2IN3IN4IN5IN6IN7GND8COM9OUT10OUT11OUT12OUT13OUT14OUT15OUT16T20031OPEN4CLOSE52MOVE3JDQ+12VDesigned By CYQDriver Units of Power可控硅驱动v双向可控硅BTA08/16/41当流经可控硅的电流很小或电流方向由正变负或由负变正时可控硅关断触发电流=10mAR1610/1WR493KR27200R30200C23104/400VC24104/400VTR9BTA41PortPort6421IC6MOC3061LED7220AC220AC+5VI/ODesigned By

6、CYQDriver Units of PowerMOC30XX可控硅型号参数带载能力 是否过零用途MOC3021400V/100mA220V否电压和功率控制MOC3041400V/100mA220V是功率开关控制MOC3061600V/100mA=220V是功率开关控制MOC3081800V/100mA=380V是功率开关控制Designed By CYQDriver Units of Power光控可控硅不过零控制t负载可控硅调压AC DC不过零控制的特点t时刻控制信号来了，可控硅马上导通的为不过零，便于实现调压Designed By CYQDriver Units of Power光控可控

7、硅过零控制t开关负载可控硅AC DC过零控制 t时刻，控制信号来了，可控硅等到交流电过零时开控制信号没了，可控硅等到交流电过零时断实现控制开与断，对电路扰动小。Designed By CYQDriver Units of Power光电耦合驱动v光电耦合主要用于电平转换，信号隔离和不共地信号传送等v发光管的电流1015mAvTLP521光控三极管电流约20mAvTIL113光控达林顿管电流可达150mA,可直接驱动一些小电流功率器件1243TLP5211243TLP52110k10k270270ININ+V+VOUTOUTDesigned By CYQDriver Units of Power

8、功率管驱动直流电机正反转B2C371000u/35VR15k1R25k1T4TIP122T3TIP122T1TIP127T2TIP1271243PH2TLP5211243PH1TLP521C38224VVLED1LED2R28200R29200I/O1I/O2+V直流电机正反转功率管驱动DIANJII/O1,I/O2为01和10时电机正反转，为00时电机不转，为11时功率管短路，为禁止态Designed By CYQDriver Units of Power功率管驱动直流电机正反转R15k1R25k1T4TIP122T3TIP122T1TIP127T2TIP1271243PH2TLP52112

9、43PH1TLP521C38224LED1LED25k1R29200+V直流电机正反转功率管驱动 禁止I/O口悬空DIANJI5k110k200+V+V+5V+5V10kI/O2I/O1I/O1,I/O2为01和10时电机正反转，为00和11时电机不转Designed By CYQDriver Units of Power继电器驱动直流电机正反转1k1k10/1W10k10kLEDLED9013901340074007104/250V1OPEN4CLOSE52MOVE3R-SPDT1OPEN4CLOSE52MOVE3R-SPDT+12V+12VI/O1I/O2+V+VDIANJII/O1,I/

10、O2为01和10是电机正反转，为00和11时不转Designed By CYQDriver Units of PowerN沟道MOS管简法驱动v场效应管属电压驱动器件v静态驱动电流极小v驱动电压要求较高，大多要求10-18V，少数型号5V也能驱动v工作频率较低,最高到30KHz470/1W220MOS-N+VMOS管简法驱动负载Designed By CYQDriver Units of PowerN沟道MOS管标准驱动v标准驱动法工作频率较简法驱动高并且取决于MOS管放电速度,MOS管结电容千p级别,放电时间常数为RC,约为数十ns,工作最高频可达数百KHz10300FR107A966MOS-N+VMOS管标准驱动负载Designed By CYQDriver Units of PowerLM386简介v音频集成功放芯片v静态功耗低,约为4mA,可用于电池供电v工作电压范围宽,4-12V或5-18Vv电压增益可调,20-200v功率可达0.75Wv外围元件少1 3456782GAINGAIN-IN+INGNDBYPASSVSVOUTDesigned By CYQDriver