POWER SHARING DEVICE AND METHOD THEREOF

摘要

A power sharing device and method thereof are disclosed herein. The power sharing device includes a control unit, multiple regulators and multiple feedback circuits. Each regulator includes a first input terminal, a second input terminal and an output terminal. The control unit generates multiple pulse-width modulation signals. The first input terminal receives one of multiple input voltages. The second input terminal receives one of the pulse width modulation signals. The output terminal selectively outputs an output power. Each feedback circuit is coupled between the second input terminal and the output terminal of one of the regulators. The output terminals of the regulators are coupled to a load, and the regulators selectively output the output power one at a time and in rotation according to the input voltages and duty cycles of the pulse-width modulation signals.

主权项

1. A power sharing device suitable for a plurality of input powers and a load, wherein the power sharing device comprises:
a control unit generating multiple pulse width modulation signals; a plurality of regulators, wherein each of the regulators comprises:
a first input terminal receiving one of the input powers;a second input terminal receiving one of the pulse width modulation signals, in which a feedback voltage is generated on the second input terminal; andan output terminal selectively outputting an output power; and a plurality of feedback circuits, wherein each feedback circuit is coupled between the second input terminal and the output terminal of one of the regulators; wherein the output terminal of each regulator is electrically connected to the load, and the regulators selectively output the output power to the load one at a time and in rotation according to the input powers and a duty cycle of each pulse width modulation signal during a power supply time period.