Power system and control method thereof

摘要

A power system and a control method thereof are disclosed. The power system comprises: providing a plurality of power sources; electrically connecting a plurality of converters between the power sources and at least one load, wherein the converters are electrically connected to the power sources respectively in a one-to-one manner; and positive feed-forward controlling each of the converters by using a positive feed-forward control circuit electrically connected to one of the power sources in a one-to-one manner, for the use to protect the input voltage source from over-current drawing by reducing the input current of the converter when the source voltage drops, regardless constant output-voltage.

主权项

1. A power system, comprising:
a plurality of power sources; a plurality of converters electrically connected to the power sources respectively in a one-to-one manner, wherein each of the converters comprises: a power stage circuit electrically connected to one of the power sources in a one-to-one manner to convert from an input voltage to an output voltage: a positive feed-forward control circuit electrically connected to one of the power sources in a one-to-one manner for providing a feed-forward control signal to positive feed-forward control each of the converters; a driver electrically connected between the power stage circuit and the positive feed-forward control circuit; and at least one load electrically connected to the converters, wherein the positive feed-forward control circuit has an adder connected to a positive terminal of the driver, and the drive outputs a driving signal to the power stage circuit according to the feed-forward control signal.