Invention Grant
- Patent Title: Current mode boost converter with fixed PWM/PFM boundary
- Patent Title (中): 具有固定PWM / PFM边界的电流模式升压转换器
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Application No.: US12975384Application Date: 2010-12-22
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Publication No.: US08358118B2Publication Date: 2013-01-22
- Inventor: Chih-Ning Chen , Kang Sheng
- Applicant: Chih-Ning Chen , Kang Sheng
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: Anpec Electronics Corporation
- Current Assignee: Anpec Electronics Corporation
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW99129319A 20100831
- Main IPC: G05F1/613
- IPC: G05F1/613 ; G05F1/575
Abstract:
A current mode Boost converter is disclosed. The Boost converter operates in a pulse width modulation (PWM) mode or a pulse frequency modulation (PFM) mode. To prevent a load current with various probable magnitudes from varying a decision boundary between the PWM mode and the PFM mode, the Boost converter adaptively adjusts a trigger condition for the PFM mode according to a mean value of an inductor current or AC components of an inductor current of an inductor and a slope compensation current.
Public/Granted literature
- US20120049825A1 Current Mode Boost Converter with Fixed PWM/PFM Boundary Public/Granted day:2012-03-01
Information query
IPC分类:
