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AssigneeNXP B.V.
InventorsOrest Cobani, Olivier Trescases, Luca Bertolini, Arjan van den Berg, Hans Halberstadt, Thieu Lammers
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Disclosed is a multi-phase coupled-LLC, CLLC, resonant converter, and controller therefor, the converter having a plurality of primary-side LLC circuits, each comprising a series-arrangement of a capacitance and two inductances between a respective input and a common node, wherein each input is switchable between a first supply voltage level and a second supply voltage level, the controller comprising: a hysteretic controller; and a finite state machine; wherein the hysteretic controller is configured to trigger a change of state of the FSM in response to a voltage level of a resonant capacitor of a one of the LLC circuits crossing a trigger voltage level; and wherein the FSM is configured to change between a plurality of states, wherein each state corresponds to a different combination of states for each of the LLC circuits of the multiphase CLLC. Corresponding methods are also disclosed.
A controller for multi-phase coupled-LLC, and coupled-CLLC, resonant converters having a plurality of primary-side LLC circuits, each comprising a series-arrangement of a capacitance (Cr) and two inductances (Lr, Lm) between a respective input node and a common node, wherein each input is switchable between a first state connected to a first supply voltage level (Vin) and a second state connected to a second supply voltage level (gnd),
The controller of claim 4, wherein the resonant converter is a three-phase coupled LLC resonant converter.
The controller of claim 4, wherein the resonant converter is a three-phase coupled CLLC resonant converter.
A multi-phase coupled resonant converter, comprising:
A method of operation of multi-phase coupled-LLC and multi-phase coupled-CLLC resonant converters, having a plurality of phases each comprising an LLC circuit, the method comprising:
Dependencies are inferred from the claim text.