文件名称:gongfenbaohu
- 所属分类：
- 单片机(51,AVR,MSP430等)
- 资源属性：
- [C/C++] [源码]
- 上传时间：
- 2013-04-11
- 文件大小：
- 2kb
- 下载次数：
- 0次
- 提 供 者：
- 韩**
- 相关连接：
- 无
- 下载说明：
- 别用迅雷下载，失败请重下，重下不扣分！
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功放保护，负载输出L,R，都应对地是交流，经R3，R4,C2,C3，入地，交流对地短路，没有直流信号；若有一路含有直流成分，将在电阻电容节点产生或正或负的电压，经二极管桥，整成直流，当电压超过二极管正向电压和Q1导通电压时，Q1导通，Q2，Q3截止，继电器释放，起到某一通道不正常时保护。
此电路还有开机延时保护：开机，电压经R2向C4充电，电压慢慢上升，电压达到D8，Q2，Q3导通电压时，继电器吸合。达到延时接通负载作用-Amplifier protection load output L, R, should all exchanges by R3, R4, C2, C3, into the earth, AC-to-ground short circuit, DC signal if all the way with DC component will be generated in the resistor-capacitor node or a positive or negative voltage, through a diode bridge, the whole into a direct current, when the voltage exceeds a diode forward voltage and Q1 conduction voltage, Q1 turns on, Q2, Q3 is turned off, the relay release play a certain channel is not normal, protection. This circuit also start delay protection: Power voltage by R2 to C4 charge voltage slowly rising voltage reaches D8, Q2, Q3 conduction voltage and relay. Load to reach-delay
此电路还有开机延时保护：开机，电压经R2向C4充电，电压慢慢上升，电压达到D8，Q2，Q3导通电压时，继电器吸合。达到延时接通负载作用-Amplifier protection load output L, R, should all exchanges by R3, R4, C2, C3, into the earth, AC-to-ground short circuit, DC signal if all the way with DC component will be generated in the resistor-capacitor node or a positive or negative voltage, through a diode bridge, the whole into a direct current, when the voltage exceeds a diode forward voltage and Q1 conduction voltage, Q1 turns on, Q2, Q3 is turned off, the relay release play a certain channel is not normal, protection. This circuit also start delay protection: Power voltage by R2 to C4 charge voltage slowly rising voltage reaches D8, Q2, Q3 conduction voltage and relay. Load to reach-delay
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gongfenbaohu.c