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②采用8个引脚PDIP和SOP两种封装结构,其引脚功能和对地参考电压见表1所示。(2)启动工作过程AC 220 V市电经熔丝F801后,再经C803、L803、C804、C801、C802、L804组成的抗干扰电路滤除干扰后,由全桥VB801整流和C811滤波,由于C811容量小,得到lOO Hz的脉动电压,经过储能电感L811加到开关管V811、V812的漏极,遥控开机后,主电源提供的VCC电压经待机控制电路控制后,送到N811的⑧脚,为
② 8-pin PDIP and SOP two package structure, the pin function and ground reference voltage shown in Table 1. (2) Start the working process AC 220 V mains through the fuse F801, and then by C803, L803, C804, C801, C802, L804 anti-interference circuit filter interference, the full-bridge VB801 rectifier and C811 filter, due to C811 small capacity, get pulsating voltage lOO Hz, added to the drain of the switch tube V811, V812 through the storage inductor L811, the remote power on, VCC voltage provided by the main power by the standby control circuit control, sent to the N811’s ⑧ pin ,for