The charger shall give an alarm signal upon failure initiated by either an under-voltage relay or a zero charging current relay.
充电器应发出警报信号后没有任何一方发起一个欠压继电器或零充电电流继电器。
2
In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zerovoltage and zerocurrent at the inverting input.
对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。
3
All switches are turned off with zerovoltage switching, and the two switches of them are turned on with zerocurrent and zerovoltage switching.