A Simple Voltage Follower Circuit using Op-amp IC 741 provides an output that matches the input; therefore, engineers also call it a buffer amplifier or a unity-gain amplifier. IC 741 op-amp is cheap and useful that is why so many people use it. Voltage follower has high input impedance and with low output impedance and […]
Power Supply Circuits
How to Build a Mini Tesla Coil Circuit
In this post for How to Build a Mini Tesla Coil Circuit these tesla coil make high voltage and low current. Furthermore, mini tesla coil is small version of big one and it can light small things or make tiny sparks and also it runs on 9V battery or other low power. Circuit Working: Parts […]
How to Charge a 12V Battery from a 12V Supply
To begin with, in this post for How to Charge a 12V Battery from a 12V Supply, this circuit uses 12V power and work like battery charger. Furthermore, it make voltage go higher than 12V to push current into battery and it also uses special parts and control transistors good so there is no overheat. […]
Buck Converter Circuit for 1 Watt LED Driver
Imagine we have a strong water hose of 12V, but plant need soft sprinkle with 3.3V to 3.5V, then in that case a Buck Converter Circuit for 1 Watt LED Driver is like adapter for hose. Also, it makes pressure low and is good for plant and it control water flow like current, so plant […]
Simple Buck Converter Circuit for Converting 12V to 3V
Simple Buck Converter Circuit for Converting 12V to 3V also called step-down converter is common in electronics; it takes high DC voltage and makes it lower, like a valve but for voltage. Additionally, phones and laptops use this type of circuit to convert a 12V battery supply into lower voltages, such as 3V, for smaller […]
Simple 1.5V White LED Driver Circuit
Simple 1.5V White LED Driver Circuit is like power translator; it takes power from battery and changes it to right voltage and current for LED. Furthermore, this helps LED shine bright and safe, but without driver LED may be it might dim or may burn. Circuit Working: Parts List: Components Values Quantity Resistors 33k, 470Ω […]