摘要 |
A converter circuit with power factor correction comprises an alternative current (AC) voltage source, a bidirectional AC switch circuit, a first un-bidirectional channel circuit, a second un-bidirectional channel circuit, a first energy storing circuit, a second energy storing circuit and an output circuit. When the bidirectional AC switch circuit is on-state, at least one of the first energy storing circuit and the second energy storing circuit is charged by an AC input current and then energy is stored with magnetic flux form. When the bidirectional AC switch circuit is off-state, at least one of the first energy storing circuit and the second energy storing circuit releases the energy to the output circuit. |
主权项 |
1. A converter circuit with power factor correction, configured for converting an alternative current (AC) input voltage into a direct current (DC) output voltage, comprising:
an AC voltage source, configured for operatively outputting the AC input voltage and an AC input current; a bidirectional AC switch circuit, electronically connected to an end of the AC voltage source, the bidirectional AC switch circuit receiving a first control signal and a second control signal, and controlling the input current; a first un-bidirectional channel circuit, an end of the first un-bidirectional channel circuit electronically connecting to the bidirectional AC switch circuit; a first energy storing circuit, an end of the first energy storing circuit electronically connecting to the first un-bidirectional channel circuit; a second un-bidirectional channel circuit, an end of the second un-bidirectional channel circuit electronically connecting to another end of the first un-bidirectional channel circuit, and another end of the second un-bidirectional channel circuit electronically connecting to another end of the AC voltage source; a second energy storing circuit, an end of the second energy storing circuit electronically connecting to another end of the second un-bidirectional channel circuit, and another end of the second energy storing circuit electronically connecting to another end of the first energy storing circuit; an output circuit, an end of the output circuit electronically connecting to another end of the first un-bidirectional channel circuit, another end of the output circuit electronically connecting to another end of the first energy storing circuit, the output circuit operatively outputting the DC output voltage; wherein when the bidirectional AC switch circuit is on-state, at least one of the first energy storing circuit and the second energy storing circuit is charged by the AC input current and then energy is stored with magnetic flux form; when the bidirectional AC switch circuit is off-state, at least one of the first energy storing circuit and the second energy storing circuit releases the energy to the output circuit. |