A unijunction transistor is a 3 terminal semiconductor device which is unlike a BJT has only a single pn junction. It is basically designed to be used as a single-stage oscillator circuit for generating pulsed signals suitable for digital-circuit applications. UJT Relaxation Oscillator Circuit The unijunction transistor could be typically wired in the form of […]
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Simple Diode Circuits Explained
In this post I have explained how to use rectifier diodes for building some practical and useful electronic circuits. A diode is the most basic semiconductor electronic component, which is built with a single pn semiconductor junction. It has only two terminals, which are referred to as the anode and the cathode. Diodes can be […]
IC 556 Pure Sine Wave Inverter Circuit
In the following post I have explained a pure sine wave inverter circuit using the IC 556 which forms the main sine wave processor device in the circuit. How it Works The presented design actually produces a modified sine wave output, but the waveform is highly processed and constitutes an exact equivalent of a sinusoidal […]
50 Amp Transistor MJ11032, MJ11033 Datasheet, Pinout
If you are looking for high current transistors in the range of 50 amps with a complementary pair, then you can try these Darlington transistors MJ11032 and MJ11033. The MJ11032 transistor is a Darlington NPN power transistor while the MJ11033 is its complementary PNP transistor which is also a Darlington power BJT. Main features The […]
Electric Wheelchair using BLDC Motor
In this post I have explained how to make a simple electric wheelchair circuit using a standard BLDC motor driver circuit, and a couple of high power BLDC motors. Introduction The introduction of electric wheelchair was like a boon to our many differently-abled friends who now find it much easier to move and travel around, […]
SCR Voltage Regulator Circuit
In this article I have explained how to build a highly efficient voltage regulator circuit using an SCR and some other external components. This SCR voltage regulator circuit being a switching kind of regulator is more efficient than the normal 3 pin voltage regulators, or the transistor zener based series pass regulators circuits. How the […]