Invention Grant
- Patent Title: Power converter output stage using heat dissipating bus bars
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Application No.: US14625120Application Date: 2015-02-18
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Publication No.: US09641095B1Publication Date: 2017-05-02
- Inventor: Urs Wild , Ivan Feno
- Applicant: PAI Capital LLC
- Applicant Address: US CA San Jose
- Assignee: PAI CAPITAL LLC
- Current Assignee: PAI CAPITAL LLC
- Current Assignee Address: US CA San Jose
- Agency: Patterson Intellectual Property Law, P.C.
- Agent Mark J. Patterson; Gary L. Montle
- Main IPC: H02M7/217
- IPC: H02M7/217

Abstract:
A dense and efficient output stage for a DC/DC converter includes center tapped secondary windings of a transformer having an offset core with respect to a PCB, two pairs of synchronous rectifiers configured to define two pairs of paralleled symmetrical AC loops respective to the secondary windings, and at least two bus bars disposed within a forced cooling airstream to act as heat sinks for the synchronous rectifiers, while further providing a filtering impedance between the transformer windings and an output capacitance. A split capacitance is disposed in close proximity with the synchronous rectifiers to filter out ripple current, in one embodiment characterized by first and second capacitors each respectively coupled between opposing ends of the first and second bus bars, wherein the bus bars are arranged about at least three sides of the transformer core.
Information query
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