The project is an idea about on Laser diode controller circuit that used in laser cutting tool. This project study about auto power controller circuit .Auto power control circuit is used Op Amp (Amplifier) and study the output power have changing the input Power source and laser diode terminal into PNP transistor. This project tries to find a better input source with best position of the diode in output terminal. This is used in laser cutting tools also can used in future defence system. For that Reason, find a good module for Laser Circuit with a good efficiency and work with solar energy. So in this paper we study about input power according to voltage and observe the output results.
auto power controller circuit, Multi-sim, Input Voltage
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