Patent ID: 7939963
Filing Date: 2011-05-10
Classification: H02M

Abstract:
1. A power supply providing multiple synchronous outputs to reduce time series difference of multiple output power of the power supply, including a standby power system to receive input power and regulate to standby power and a main power system to receive the input power and regulate to become main output power, the main power system having a rectification output unit to deliver the main output power, the power supply further comprising: at least one delay trigger unit which is connected to the rectification output unit to receive the main output power, and sets a voltage judgment level and determines to output a trigger signal based on the main output power being greater than the voltage judgment level; and at least one voltage regulation output unit which has a biased driving end connecting to the standby power system to receive the standby power to activate the voltage regulation output unit, a power input end connecting to the rectification output unit to receive the main output power, a feedback detection end connecting to the delay trigger unit and a secondary output end to deliver secondary output power, the secondary output powers being separate and connected in parallel, the feedback detection end receiving the trigger signal to determine starting a voltage boosting process to regulate the main output power to become the secondary output power and the feedback detection end being electrically connected to the secondary output end to detect variation thereof; wherein the main output power requires a rise time and activation of the voltage regulation output unit requires another rise time, the delay trigger units outputting trigger signals so as to compensate for the rise times so that the main output power and secondary output power are made synchronous.