POWER COVERSION APPARATUS

摘要

A power conversion apparatus including a power converter, a first output port, a second output port, a load detection circuit and an output selection circuit is provided. The power converter generates a first and a second output voltages having different voltage specification. The first and the second output ports respectively provide the received output voltages to a back end. The load detection circuit is coupled with the power converter and the second output port and detects a load requirement of a load connected to the second output port to generate a load detection signal. The power converter generates a first switch control signal according to the load detection signal to control the output selection circuit, such that the output selection circuit provides one of the first and the second output voltages in response to the first switch control signal.

主权项

1. A power conversion apparatus, comprising:
a power converter, configured to generate a first output voltage and a second output voltage, wherein the first output voltage and the second output voltage have different voltage specification; a first output port, coupled to the power converter and configured to receive the first output voltage and provide the received first output voltage to a back end; a second output port, configured to receive the first output voltage and the second output voltage and provide one of the received first and second output voltages to the back end; a load detection circuit, coupled to the power converter and the second output port and configured to detect a load requirement of a load connected with the second output port, so as to generate a load detection signal; and an output selection circuit, having a first input terminal, a second input terminal and a first output terminal, wherein the first input terminal and the second input terminal are coupled to the power converter to receive the first output voltage and the second output voltage respectively, and the first output terminal is coupled to the second output port, wherein the power converter generates a first switch control signal according to the load detection signal to control the output selection circuit, such that the output selection circuit provides the one of the first output voltage and the second output voltage which conforms to the load requirement of the load to the second output port in response to the first switch control signal.