Half-bridge llc resonant converter interleaved parallel circuit and its current sharing control method
A resonant converter, resonant current technology, applied in the direction of converting DC power input to DC power output, control/regulation systems, instruments, etc., can solve the gain deviation of each phase LLC resonant converter, threaten the reliable operation of the system, and the current of each phase Unequal problem, to achieve the effect of reducing the effective value of the fundamental wave, reducing the gain, and realizing the current sharing control
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[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] like figure 1As shown, a half-bridge LLC resonant converter interleaved parallel circuit, two-phase half-bridge LLC resonant converters are interleaved in parallel, wherein the DC input side of each phase half-bridge LLC resonant converter is two capacitors in series, through the T-type switch The network is connected to the resonant cavity, and the secondary side of the transformer is connected to the rectifier circuit, the output capacitor and the load; the half-bridge LLC resonant converter circuit includes a capacitor (Ca), a capacitor (Cb), a MOS tube (Sza) connected to the auxiliary path, and a MOS tube ( Szb), MOS tube (Qa), MOS tube (Qb), resonant capacitor (Cr), resonant inductor (Lr), transformer (T), diode (Da), diode (Db) and output capacitor (Cout), by resonance The loop composed of capacitance (Cr), resonant inductance (Lr), and ex...
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Abstract
Description
Claims
Application Information
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