POWER CONVERTING CIRCUIT

摘要

A power converting circuit for supplying power to an inductive load, includes an inductance, a switching circuit and an energy saving circuit. The inductance is charged when the switching circuit is conductive and discharges energy to the energy saving circuit and the inductive load when the switching circuit is nonconductive. The energy saving circuit discharges energy to the inductive load when the switching circuit is conductive.

主权项

1. A power converting circuit for supplying power to an inductance load, comprising:
a converter for converting an AC voltage to a DC voltage, comprising first and second input terminals adapted to connect to an AC power supply and first and second DC terminals for outputting a DC voltage; a first inductance comprising first and second connecting terminals, the first connecting terminal being connected to the first DC terminal; a switching circuit comprising first and second controlled terminals and a control terminal for controlling a connection between the first and second controlled terminals; a control circuit supplying a control signal the control terminal to control the connection between the first controlled terminal and the second controlled terminal; and an energy saving circuit connected to the second connecting terminal and the second DC terminal and comprising first and second output terminals for supplying power to the inductive load; wherein the first inductance is adapted to store energy when the first and second controlled terminals are connected to each other and to discharge energy to the energy saving circuit and the inductive load when the first and second controlled terminals are disconnected from each other, and the energy saving circuit is adapted to discharge energy to the inductive load when the first and second controlled terminals are connected to each other.