LED driver circuit with high power output

This circuit has the ability to emit 15kHz modulated light. The first level 4001 is a single pulse generator, which can manually press the button to output detection pulses for fault repair.

In order to stabilize the frequency of the modulated optical signal, a frequency divider CD4060 is used in the circuit. It comes with an external crystal oscillator and internal multi-stage frequency divider. For a 1M crystal oscillator, after six times of frequency division by 4060, a square wave with a stable frequency of 151625kHz can be obtained. Then through the current amplification of the power field effect transistor, hundreds of light-emitting diodes can be driven to emit light at the same time.