POWER SUPPLY APPARATUS AND POWER SUPPLY METHOD

摘要

A power supply apparatus including a master power converter and a slave power converter is provided. The master power converter generates a main power having a working voltage level. The slave power converter generates an auxiliary power. According to its operation state, the master power converter provides a corresponding control signal to the slave power converter. If the master power converter determines the operation state is a first operation state, the slave power converter generates the auxiliary power having a voltage level lower than the working voltage level, so that the slave power converter can be operated in a no-load conversion state. If the master power converter determines the operation state is a second operation state, the slave power converter raises the voltage level of the auxiliary power to the working voltage level, so that the auxiliary power replacing the main power is supplied to a load.

主权项

1. A power supply apparatus comprising:
a master power converter configured to generate a main power having a working voltage level; and a slave power converter configured to generate an auxiliary power, wherein the master power converter and the slave power converter are adapted to be coupled to a load in parallel, wherein the master power converter provides a control signal to the slave power converter in response to an operation state of the master power converter, if the master power converter determines the operation state is a first operation state, the slave power converter responds to the control signal and generates the auxiliary power having a voltage level lower than the working voltage level, such that the slave power converter is operated in a no-load conversion state, and the main power is supplied to the load, and if the master power converter determines the operation state is a second operation state, the slave power converter responds to the control signal and raises the voltage level of the auxiliary power to the working voltage level, such that the auxiliary power replacing the main power is supplied to the load.