Invention Grant
US07804283B2 Mode transitioning in a DC/DC converter using a constant duty cycle difference
有权
使用恒定占空比差异在DC / DC转换器中进行模式转换
- Patent Title: Mode transitioning in a DC/DC converter using a constant duty cycle difference
- Patent Title (中): 使用恒定占空比差异在DC / DC转换器中进行模式转换
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Application No.: US11838696Application Date: 2007-08-14
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Publication No.: US07804283B2Publication Date: 2010-09-28
- Inventor: Jan Krellner , Sanjaya Maniktala
- Applicant: Jan Krellner , Sanjaya Maniktala
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrasia, Fisher & Lorenz, P.C.
- Main IPC: G05F1/618
- IPC: G05F1/618

Abstract:
According to an exemplary embodiment, a method includes the step (910) of driving a buck section of a DC/DC converter with a buck signal that has a buck duty cycle and concurrently with driving the buck section, driving a boost section of the DC/DC converter with a boost signal that has a boost duty cycle, a difference existing between the buck duty cycle and the boost duty cycle. The method also includes the step (920) of monitoring an input voltage that is coupled to the buck section for a change in the input voltage, and in response to a change in the input voltage, the step (930) of changing the buck duty cycle and the boost duty cycle such that the difference between the buck duty cycle and the boost duty cycle is substantially constant.
Public/Granted literature
- US20090045786A1 MODE TRANSITIONING IN A DC/DC CONVERTER USING A CONSTANT DUTY CYCLE DIFFERENCE Public/Granted day:2009-02-19
Information query
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