Invention Grant
- Patent Title: Power losses reduction in switching power converters
- Patent Title (中): 开关电源转换器的功率损耗降低
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Application No.: US12175331Application Date: 2008-07-17
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Publication No.: US07646180B2Publication Date: 2010-01-12
- Inventor: Donald F. Partridge
- Applicant: Donald F. Partridge
- Applicant Address: US CA Los Gatos
- Assignee: One More Time LLC
- Current Assignee: One More Time LLC
- Current Assignee Address: US CA Los Gatos
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G05F1/10
- IPC: G05F1/10

Abstract:
Embodiments of the invention provide methods and apparatuses for concurrently eliminating or substantially reducing two or more switching losses in an inverter switching circuit. Embodiments of the invention concurrently reduce multiple types of switching losses under hard switching mode and soft switching mode for active switching devices and diodes. In one embodiment of the invention, the voltage across a switching device is substantially reduced during switch turn-off and/or turn-on time, and also maintained at a substantially reduced level throughout some or all of the tail current loss time of the switching device. The voltage reduction mechanism is implemented as a transformer circuit electrically serially implemented between the voltage source and the switching device. Other methods and apparatuses are also described.
Public/Granted literature
- US20080297123A1 POWER LOSSES REDUCTION IN SWITCHING POWER CONVERTERS Public/Granted day:2008-12-04
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