This code supports Application Note AN1138: A Digital Constant Current Power LED Driver, using the PIC12HV615? an 8-pin, PIC microcontroller (MCU) with A Digital Constant Current Power LED Driver The ...

Performing PWM control on the outputs controls the LED luminance. The luminance data of the PWM signal for each LED is stored in three 10-bit registers. Each LED can be dot-corrected by a 7-bit scalar ...

[Peter] needed to drive a high power LED for his microscope. Rather than pick up a commercial LED driver, he built a simple constant current LED driver and fan control. We’ve featured [Peter&… ...

The goal is to develop an LED driver with input current in phase with the input voltage. Thus, a 120- Hz LED current waveform is created ... The circuit in Figure 1 uses an LT3755 ac LED driver ...

Your 10W LED will need about 10.5V and your constant current circuit will have to drop the difference from the supply voltage. If you feed 14V into the circuit then the 3.5V difference will become ...

Figure 1 shows the input supply current when the LED current is reduced from 700 mA to 350 mA by using a 3-V, 10-kHz, 50% duty-cycle PWM signal on the EN pin. The peak-to-peak input ripple current ...