| 摘要 |
A display monitor power supply circuit has a primary side with a power factor correction circuit, a secondary side with a microcontroller for controlling a display monitor, and an isolation interface arranged between the primary side and the secondary side. The microcontroller provides a power correction circuit control signal to the power factor correction circuit for controlling a power correction factor of the display monitor power supply circuit. In operation, the power correction circuit control signal automatically switches the power factor correction circuit to an off state during a power save state. The isolation interface may also provide a supply voltage directly to the power factor correction circuit. The isolation interface may include an isolator circuit for two-way communication signals between the primary side and the microcontroller to fully control the power factor correction circuit. |
