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US 9,318,945 B2Granted
Resonant-mode power supply with a multi-winding inductor
AssigneeAkademia Gorniczo-Hutnicza Im. Stanislawa Staszica W Krakowie
InventorCezary Worek
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AssigneeAkademia Gorniczo-Hutnicza Im. Stanislawa Staszica W Krakowie
InventorCezary Worek
Estimating the term…
A resonant-mode power supply, comprising an assembly of switches connected in a bridge or a half-bridge configuration, a series resonant circuit connected in the bridge or half bridge diagonal, a part of which is formed by a multi-winding inductor by means of which a load is connected, and a controller configured to stabilize output voltages or currents by controlling the switching frequency of the assembly of switches. The series resonant circuit comprises an energy recirculation circuit (ERC1) for limiting the resonant circuit quality factor, connected through the diode rectifier (DR2) to the supply voltage node and a current monitoring circuit (CMC) configured to monitor the recirculation circuit current (Ilim) and, by means of the controller (C), to change the switching frequency of the assembly of switches (K1, K2, K3, K4) in order to reduce power supplied to the resonant circuit upon exceeding the threshold value by the current (Ilim) in the energy recirculation circuit (ERC1).
A resonant-mode power supply, comprising an assembly of switches connected in a bridge or a haft-bridge configuration, a series resonant circuit connected in the bridge or half bridge diagonal, a part of which is formed by a multi-winding inductor by means of which a load is connected, and a controller configured to stabilize output voltages or currents by changing a switching frequency of the assembly of switches, wherein the series resonant circuit comprises an energy recirculation circuit comprising an inductor for limiting a resonant circuit quality factor, connected through a diode rectifier to a supply voltage node and in parallel to a resonant capacitance or to a resonant inductance and a current monitoring circuit configured to monitor a current in the energy recirculation circuit and, by means of the controller, to change the switching frequency of the assembly of switches in order to reduce power supplied to the series resonant circuit upon exceeding a threshold value by the current in the energy recirculation circuit.
Dependencies are inferred from the claim text.