The invention discloses a double-edge trigger circuit for OBC charging wake-up, which comprises a wake-up switch circuit connected with a to-be-wake-up circuit, and is characterized in that the wake-up switch circuit outputs a wake-up trigger signal to wake up the to-be-wake-up circuit when working; the trigger circuit is connected with the wake-up switch circuit and used for controlling the wake-up switch circuit to send the wake-up trigger signal, and the trigger circuit can control the wake-up switch circuit to output the wake-up trigger signal when an accessed CP signal is located at a rising edge or a falling edge. Compared with the prior art, the device has a rising and falling double-edge triggering characteristic, and can meet the functions of gun insertion awakening, gun pulling awakening and charging appointment when the OBC is charged. The circuit is simple, is low in cost, does not need an MCU controller for awakening, is high in reliability, and is low in quiescent current in a sleep mode.
本发明公开了一种用于OBC充电唤醒的双边沿触发电路,包括与待唤醒电路连接的唤醒开关电路,所述唤醒开关电路工作时输出唤醒触发信号唤醒所述待唤醒电路,还包括与所述唤醒开关电路连接并用于控制所述唤醒开关电路发出所述唤醒触发信号的触发电路,所述触发电路可于接入的CP信号处于上升沿或下降沿时控制所述唤醒开关电路输出所述唤醒触发信号。与现有技术相比,本发明具有上升下降双边沿触发特性,可以满足OBC在充电时的插枪唤醒、拔枪唤醒、以及预约充电功能。具有电路简单、成本低的优点,同时唤醒不需要MCU控制器参与,可靠性高,休眠模式下静态电流低。
Double-edge trigger circuit for OBC charging wake-up
一种用于OBC充电唤醒的双边沿触发电路
2022-03-15
Patent
Elektronische Ressource
Chinesisch
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