Discussion on the LED Driver
fecha:2011-06-07 14:49
estado:para resolver
pregunta:admin
hod is the preferred method is to adjust the LED current constant current power supply to drive the LED. Constant current power supply to eliminate the forward voltage changes caused by current changes. Therefore, the LED can produce a constant brightness, regardless of changes in forward current. Generate constant current power supply is easy. Only need to adjust the current sense resistor by the voltage, instead of adjusting the output voltage. Figure 2 illustrates this approach. Power supply
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