Invention Grant
- Patent Title: Power converter with current matching
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Application No.: US16433584Application Date: 2019-06-06
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Publication No.: US10863600B2Publication Date: 2020-12-08
- Inventor: John David Greenwood
- Applicant: Power Integrations, Inc.
- Applicant Address: US CA San Jose
- Assignee: Power Integrations, Inc.
- Current Assignee: Power Integrations, Inc.
- Current Assignee Address: US CA San Jose
- Agent Pamela Lau Kee
- Main IPC: H05B45/37
- IPC: H05B45/37 ; H05B45/10

Abstract:
A current matching circuit includes a plurality of LED driver circuits. A current to voltage converter circuit is coupled to the plurality of LED driver circuits to generate a plurality of voltage signals. Each one of the plurality of voltage signals is representative of a respective output current through a corresponding one of the plurality of LED driver circuits. A comparison circuit is coupled to the current to voltage converter circuit to compare the plurality of voltage signals. An adjustment circuit is coupled to the comparison circuit and the plurality of LED driver circuits. The adjustment circuit is configured to trim the plurality of LED driver circuits in response to the comparison circuit such that each respective output current through the plurality of LED driver circuits is substantially equal.
Public/Granted literature
- US20190387588A1 POWER CONVERTER WITH CURRENT MATCHING Public/Granted day:2019-12-19
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