Power supply full-brick module with internal inrush current limit circuit
AssigneeAES Global Holdings PTE Ltd.
InventorMan Ho Chiang
Life of this patent
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Abstract
A power converter comprises a power conversion circuit and a housing. The power conversion circuit comprises a voltage input, a voltage output, a first DC-DC voltage converter, and a second DC-DC voltage converter coupled to the first DC-DC voltage converter via a converter output bus. A first capacitor terminal is coupled to a first rail of the converter output bus and an inrush circuit coupled to a second rail of the converter output bus and coupled to a second capacitor terminal. The housing comprises a length no greater than 117.3 mm. The second capacitor terminal is coupled to the second rail only via the inrush circuit.
Claims20
A power converter comprising:
- a power conversion circuit comprising:
- a voltage input comprising a first input terminal and a second input terminal;
- a voltage output comprising a first output terminal and a second output terminal;
- a first DC-DC voltage converter coupled between the voltage input and the voltage output;
- a second DC-DC voltage converter coupled to the first DC-DC voltage converter via a converter output bus and coupled to the voltage output;
- a first capacitor terminal coupled to a first rail of the converter output bus;
- an inrush circuit coupled to a second rail of the converter output bus and coupled to a second capacitor terminal;
- and
- a housing within which the power conversion circuit is positioned;
- wherein the housing comprises a length no greater than 117.3 mm.;
- and
- wherein the second capacitor terminal is coupled to the second rail only via the inrush circuit.
A power supply comprising:
- a power supply chassis having an interior volume;
- a power conversion system housed within the interior volume and comprising:
- a voltage input configured to receive an input voltage from a voltage source;
- a power factor correction (PFC) circuit configured to generate a first DC voltage based on the input voltage;
- a resonant converter configured to generate a second DC voltage based on the first DC voltage;
- a voltage output configured to supply the second DC voltage to a load;
- a voltage bus coupled between the PFC circuit and the resonant converter;
- a capacitor coupler coupled in series with an inrush circuit, wherein the capacitor coupler comprises a pair of capacitor connection terminals and wherein the series-coupled capacitor coupler and inrush circuit are coupled between first and second rails of the voltage bus;
- a control system coupled to the inrush circuit and configured to control an inrush current via the inrush circuit;
- and
- a bulk capacitor coupled to the capacitor connection terminals;
- wherein a length of the power supply chassis is no greater than 117.3 mm.
Dependencies are inferred from the claim text.