The existing heating bag has the disadvantages of complex technology and easy falsetriggering.
现有的发热袋存在着工艺复杂、容易误触发的缺点。
2
The output is held low as long as the reset pulse is low. To prevent falsetriggering, when RESET is not used, it should be connected to VCC.
只要复位脉冲低，输出就低。为防止误触发，当不用“复位“的时候，”复位“端应和Vcc端相连。
3
The capacitor in the rc timing network also determines a user-selectable blanking window that prevents falsetriggering of the PWM current-control circuitry during switching transitions.