Tag: diode

Laser

Laser Diode Driver

Laser Diode Driver project will help you safely drive (constant current) a 3 mW visible Laser Diode for your application. Input supply – 2.5 to 6 VDC Onboard preset to adjust the current flow to the Laser Diode Power-On LED indicator Header connector for easy input supply...

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Basic Electronics

Build an op amp with three discrete transistors

by Lyle Russell Williams: You can use three discrete transistors to build an operational amplifier with an open-loop gain greater than 1 million (Figure 1). You bias the output at approximately one-half the supply voltage using the combined voltage drops across zener diode D1, the...

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