Invention Grant
- Patent Title: Knee voltage detector
- Patent Title (中): 膝关节电压检测器
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Application No.: US14715620Application Date: 2015-05-19
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Publication No.: US09570990B2Publication Date: 2017-02-14
- Inventor: Ke-Horng Chen , Chao-Chang Chiu , Hao-Yuan Lin , Che-Hao Meng , Chih-Wei Chang , Ying-Hsiang Wang
- Applicant: NOVATEK Microelectronics Corp.
- Applicant Address: TW Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW104101662A 20150119
- Main IPC: H02M3/335
- IPC: H02M3/335 ; G01R19/10
Abstract:
A knee voltage detector for a flyback converter is provided. The knee voltage detector comprises a delay unit, for delaying an auxiliary related voltage for a specific period, to generate a delay signal; a subtracting unit, for generating a subtraction signal according to the auxiliary related voltage and the delay signal; a comparing unit, for generating a sampling signal when the subtraction signal indicates that a voltage difference between the auxiliary related voltage and the delay signal is greater than a threshold; and a sample and hold unit, for sampling the delay signal to generate a knee voltage according to the sampling signal when the voltage difference between the auxiliary related voltage and the delay signal is greater than the threshold.
Public/Granted literature
- US20160211755A1 Knee Voltage Detector Public/Granted day:2016-07-21
Information query
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