Invention Grant
- Patent Title: Low loss discharge circuits for EMI filter capacitors
- Patent Title (中): 用于EMI滤波电容器的低损耗放电电路
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Application No.: US12956351Application Date: 2010-11-30
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Publication No.: US08541987B2Publication Date: 2013-09-24
- Inventor: Donald R. Disney , Michael Hsing , James Nguyen , James Moyer
- Applicant: Donald R. Disney , Michael Hsing , James Nguyen , James Moyer
- Applicant Address: US CA San Jose
- Assignee: Monolithic Power Systems, Inc.
- Current Assignee: Monolithic Power Systems, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Okamoto & Benedicto LLP
- Main IPC: H02J7/00
- IPC: H02J7/00 ; H02J7/04

Abstract:
A discharge circuit for an EMI filter capacitor includes normally-ON transistors. The normally-ON transistors may be controlled to limit current through them when an AC source is coupled across the discharge circuit. When the AC source is disconnected from the discharge circuit, the normally-ON transistors turn ON to allow current flow through them. The current flow allows the EMI filter capacitor to be discharged by a discharge resistor.
Public/Granted literature
- US20120007567A1 LOW LOSS DISCHARGE CIRCUITS FOR EMI FILTER CAPACITORS Public/Granted day:2012-01-12
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