| 摘要 |
PURPOSE: A driving method of a power supply device is provided to reduce power consumption simultaneously using a standby mode and a key-off mode. CONSTITUTION: A microcomputer is initialized(S100). If AC power source is provided, a key mode is checked(S110). If the key mode is the key off mode, the microcomputer is converted into a stop mode(S120). At least one output port is opened. The operation voltage of the microcomputer is reduced. The microcomputer generates a key-save signal. The key-off mode is converted into a standby mode(S140).
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