Invention Grant
- Patent Title: Arbitrary-ratio analog current division circuit
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Application No.: US16145053Application Date: 2018-09-27
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Publication No.: US10588194B1Publication Date: 2020-03-10
- Inventor: Yifeng Qiu
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: Lumileds LLC
- Current Assignee: Lumileds LLC
- Current Assignee Address: US CA San Jose
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
A circuit for dividing a single current source into two or more current channels is disclosed. The circuit may comprise a voltage controlled current source, a first sense resistor to sense a first sensed voltage of a first current channel, a second sense resistor to sense a second sensed voltage of a second current channel, a computational device configured to compare the first sensed voltage to the second sensed voltage to determine an output voltage, a first voltage control switch to power a first LED array, a second voltage control switch to power a second LED array, wherein the output voltage is supplied to the first control switch. The computational device may be a computational circuit or a microcontroller.
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