Invention Grant
- Patent Title: DC to DC converter with pseudo constant switching frequency
- Patent Title (中): 直流到直流转换器具有伪恒定开关频率
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Application No.: US12367384Application Date: 2009-02-06
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Publication No.: US08476887B2Publication Date: 2013-07-02
- Inventor: Tetsuo Tateishi , Shinobu Aoki
- Applicant: Tetsuo Tateishi , Shinobu Aoki
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent William B. Kempler; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: G05F1/40
- IPC: G05F1/40

Abstract:
Various apparatuses, methods and systems for a DC to DC converter with a pseudo constant switching frequency are disclosed herein. For example, some embodiments provide a DC to DC converter having a switch connected to a switching node to control a voltage of the switching node, and a switching controller that is adapted to turn on and off the switch at a substantially constant frequency based at least in part on the voltage of the switching node. The switching controller includes a modulator connected to a control electrode of the switch and that is adapted to actuate and deactuate the switch, and a first timer that is connected to the switching node and to the modulator. The first timer uses the voltage of the switching node to determine an on-time for the switch.
Public/Granted literature
- US20090140708A1 DC to DC converter with Pseudo Constant Switching Frequency Public/Granted day:2009-06-04
Information query
IPC分类: