| 摘要 |
PROBLEM TO BE SOLVED: To improve greatly the controllability in a light loading in a series resonant inverter circuit, and fulfill the increase in efficiency and the reduction in an output ripple. SOLUTION: In a controlling method of a series resonant bridge inverter in which semiconductor switches with anti-paralleled diodes are formed in full- bridge circuit, and which is comprised of an inductance 6 for use in resonance, a capacitor 5 for use in resonance and a load circuit 16 that are connected at an AC output side of the full-bridge circuit 2, the full-bridge circuit 2 is made to operate in a full-bridge form when an output electric power falls within the predetermined range of an electric power, and the full-bridge circuit 2 is made to operate on equivalent basis and in half-bridge form when an output electric power is smaller than the predetermined range of an electric power. COPYRIGHT: (C)2004,JPO
|
