| 摘要 |
<p>A solar standby power supply device, which is used for supplying a solar power source when an electrical appliance is on standby. The solar standby power supply device comprises a solar power supply unit (1), a control unit (2), a relay (3), a power supply board (4) and a mainboard CPU unit (5) of the electrical appliance. The control unit is connected between the solar power supply unit and a control coil of the relay, so as to control a switch action of the relay. The operating principle is: when the electrical appliance is in a standby state, the control unit controls the switch action of the relay, so that a power supply path between a mains supply input and a power supply board are automatically cut off, and power is supplied to the mainboard CPU unit of the electrical appliance by the solar power supply unit, thereby realizing the zero power consumption standby of the electrical appliance.</p> |
