Invention Grant
- Patent Title: Self-oscillating switched mode converter with valley detection
- Patent Title (中): 具有谷波检测的自振式开关模式转换器
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Application No.: US12988061Application Date: 2009-04-14
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Publication No.: US08193797B2Publication Date: 2012-06-05
- Inventor: Cheng Zhang , Wilhelmus H. M. Langeslag
- Applicant: Cheng Zhang , Wilhelmus H. M. Langeslag
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP08103581 20080416
- International Application: PCT/IB2009/051547 WO 20090414
- International Announcement: WO2009/128023 WO 20091022
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
An energy converter is disclosed in which self oscillation mode operation is improved by a closed loop feedback control. The feedback control utilizes the voltage error from the voltage valley in the drain voltage (Vdrain) of the converter switch (1), to determine an error (E(n)) in the time domain. Control circuitry (61, 62, 63) is used to minimize this time-domain error (E(n)) to optimize the control of the switch mode converter.
Public/Granted literature
- US20110031949A1 SELF-OSCILLATING SWITCHED MODE CONVERTER WITH VALLEY DETECTION Public/Granted day:2011-02-10
Information query
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