In this post we are going take a look at “I2C” or “IIC” or “I square C” based LCD adapter module, which will reduce wire connections between Arduino and LCD display to just 2 wires, also saving tons of GPIO pins for other sensors / drives etc. Before I have explained about I2C LCD adapter […]
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SCR/Thyristor Circuit Configurations
Now in this article we will try to understand step by step how we can use this thyristor in practical work. That can be for controlling heavy loads like electric lamps, heaters, or motors and so on. So this part is more about real application and not only about theory. How We Trigger The Thyristor […]
Understanding Bipolar Junction Transistors (BJTs)
If we look at the diodes, their internal construction look very simple. They are made by joining two pieces of semiconductor material, and this is called a pn-junction. But when we talk about bipolar junction transistor or bjt, then things get little more complicated. It needs adding one more layer of semiconductor material, and that […]
RC Snubber Calculator for MOSFETs, Relay Contacts and Triacs
This calculator is basically finding out two things: …so that we can make a perfect RC snubber for killing high voltage spikes across: Now let us break down everything it’s calculating. RC Snubber Calculator Application Type: MOSFETTRIACRelay Contact Peak Voltage (V): Peak Current (A): Rise Time (µs): Calculate Snubber © homemade-Circuits.com Basic Snubber Formula Logic […]
SCR and Triac Gate Resistor Calculator
Here is a SCR and Triac gate resistor calculator along with the full detailed explanation. This will help users to calculate the right value of gate resistor for triggering an SCR or TRIAC safely. Calculator by homemade-circuits.com SCR / TRIAC Gate Resistor Calculator Gate Trigger Voltage (Vgt): Gate Trigger Current (Igt): Trigger Supply Voltage (Vs): […]
Shunt Resistor Calculator for Ammeters
Ok so here we have one simple calculator which can help us to calculate the shunt resistor value that we need to connect across a normal ammeter when we want to use that ammeter to measure high current, more than its actual range. So normally, ammeter can measure only small current, like 1 amp or […]