Invention Grant
- Patent Title: Start-up circuit to discharge EMI filter for power saving of power supplies
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Application No.: US16531401Application Date: 2019-08-05
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Publication No.: US10971992B2Publication Date: 2021-04-06
- Inventor: Wei-Hsuan Huang , Meng-Jen Tsai , Chien-Yuan Lin , Ming-Chang Tsou , Chuan-Chang Li , Gwo-Hwa Wang
- Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Applicant Address: US AZ Phoenix
- Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee Address: US AZ Phoenix
- Agent Robert F. Hightower
- Main IPC: H02M1/12
- IPC: H02M1/12 ; H02M1/14 ; H02M1/32 ; H02M1/36
Abstract:
A start-up circuit to discharge EMI filter is developed for power saving. It includes a detection circuit detecting a power source for generating a sample signal. A sample circuit is coupled to the detection circuit for generating a reset signal in response to the sample signal. The reset signal is utilized for discharging a stored voltage of the EMI filter.
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