This simple LED driver circuit allows us to drive up to seven LEDs by using a single NiMH (Nickel Metal Hydride) AA cell. The circuit produces voltage pulses at a much higher level than the input ...

The LED Driver Most LED drivers are boost (step-up) converters. Figure 1 shows a schematic circuit diagram of this type of converter. Boost converters usually have lower conducted emissions on the ...

This circuit is not complex, but it saved the day in an application ... It shows the main-clock input; the delay and duration potentiometers, P 1 and P 2; and the HB-LED output.

If the voltage source is a battery, then, as the battery drains, the LED’s intensity decreases. Also, a series resistance has the disadvantage of power loss through the resistor. A better option is to ...