In this post I have explained a very simple digital panel type voltmeter circuit using a single IC L7107 and a few other ordinary components. The circuit is able to measure voltages right up to 2000 AC/DC V. About the IC L7107 Making this simple digital panel voltmeter circuit is particularly easy due to the availability […]
Newly Updated Circuit Projects:
Making an Adjustable Electromagnet Circuit
This article describes a simple circuit which can be used for pulsing an electromagnet. The IC 555 once again becomes the central part of the circuit. I have explained the making procedure of this simple adjustable electromagnet circuit for varying the magnetic power of an electromagnet. Introduction The circuit was requested by Mr.Jason, one of […]
How to Make a Bridge Rectifier
A bridge rectifier is an electronic network using 4 diodes which is used for converting an AC input to DC output. The process is called full wave rectification. Here I have explained the basic working principle of rectifier diodes such as a 1N4007 or a 1N5408, and also learn how to connect 1N4007 diodes to […]
SCR Shunt Circuit for Protecting LED Drivers
The post presents an effective method for protecting capacitive LED driver circuits through an SCR shunt regulator circuit and explains how it can prevent filter capacitors from blowing of and LEDs from getting destroyed. The remedy was requested by Mr. Max Payne. Protecting High Watt LEDs Please suggest regarding 3W, 5W LED bulb circuit design fault. […]
How Thyristors (SCR) Work – Tutorial
Basically an SCR ( Silicon Controlled Rectifier) which is also known by the name Thyristor works quite like a transistor. What SCR Stands for The device gets its name (SCR) due to its multi layered semiconductor internal structure which refers to the “silicon” word in the beginning of its name. The second part of the […]
Car Head Lamp Fader Circuit (Breathing Effect Generator)
The proposed circuit of a modified car head lamp fader, “breather” circuit generates a slow flashing effect over the head lamps every time the lamps are switched OFF. The “breathing effect” continues for a certain predetermined period after which the process automatically shuts off. The circuit was requested by Mr. Ray. Technical Specifications I just wanted to say that […]