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AssigneeAplus Power Technology (Hangzhou) Co., Ltd.
InventorYuetian Wang
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Embodiments of this disclosure provide a power supply device, a resonant converter circuit and controlling method thereof. The circuit includes: an inverter circuit, a resonant circuit, a rectifier circuit, a switch, and a second inductor, wherein the inverter circuit is connected to the resonant circuit for converting direct currents into alternating currents to output to the resonant circuit, the resonant circuit is connected to the rectifier circuit for outputting the alternating currents to the rectifier circuit after resonant conversion, and the rectifier circuit is used for outputting direct currents; the resonant circuit includes a first inductor and a first capacitor, the first inductor, the first capacitor and the second inductor are connected in series, the switch is connected in parallel with the second inductor, and the rectifier circuit is connected to both ends of the second inductor. With the embodiments of this disclosure, output voltage gains of a resonant converter may be improved while efficiency of the resonant converter is not affected, thereby extending a hold time.
A resonant converter circuit comprising:
A power supply device, comprising the resonant converter circuit as claimed in 1, an input terminal and an output terminal.
A method for controlling a resonant converter circuit, the method comprising:
Dependencies are inferred from the claim text.