Invention Grant
US09131578B2 Programmable light emitting diode (LED) driver technique based upon an input voltage signal 有权
基于输入电压信号的可编程发光二极管(LED)驱动技术

Programmable light emitting diode (LED) driver technique based upon an input voltage signal
Abstract:
Provided is an LED driver including an amplifier configured to receive a negative voltage input signal and produce a positive voltage output signal in response thereto. Also included is a microcontroller configured for sensing a value of the positive voltage output signal. The microcontroller (i) enters a programming mode when the value exceeds a threshold and (ii) produces an output current responsive to the value.
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