Design Over & Under Voltage Protection Circuit

Learn how a electric stabilizer works & design one for yourself
Free tutorial
Rating: 3.6 out of 5 (616 ratings)
13,003 students
33min of on-demand video

Design a complete over voltage & under voltage protection circuit (a electric stabilizer)
You will be able to design voltage dividers.
You will be able to design a complete relay driving circuit


  • You need to have Basic knowledge of electronic terminologies like Resistance, Capacitance, Relay, Transformer etc.
  • Basic knowledge of Transistor's current gain will be beneficial.


This is a design course for Over & Under voltage protection circuit.

Course materials:

You will required to have a pencil and a rough sheet (only) with you during this course. 

If you have any electrical simulation software like Multisim, MATLAB, Pyspice etc. then you have a great opportunity to learn by doing practically. (This is not compulsory)

What is Over & Under Voltage Protection Circuit?

For the reliable working of all electric and electronics appliances, it is recommended to allow voltage at prescribed limits. Voltage fluctuations in electric power supply certainly have adverse effects on connected loads. These fluctuations can be of over voltage and under voltages which are caused by several reasons like voltage surges, lightning, overload, etc. Over voltages are the voltages that exceed the normal or rated values which cause insulation damage to electrical appliances leading to short circuits. Similarly, under-voltage causes overloading of the equipment leading to lamp flickers and inefficient performance of the equipment. Thus to avoid above loss and damages we use Over and Under Voltage Protection Circuit.

Course Overview

  • The following topics we'll learn in this course
  • Voltage Dividers
  • Voltage comparators
  • Zener Diode for Voltage regulation
  • Design of Relay Driving Circuit
  • Comparator circuit for reliable voltage range
  • Complete design of Over and under voltage protection circuit and Understanding of its working

"Lets learn it.. 

Who this course is for:

  • This course is for the people interested in hardware design.
  • Students those who are interested in consumer electronics.
  • People interested in industrial design


Software Engineer
Ritvik Dave
  • 3.7 Instructor Rating
  • 1,817 Reviews
  • 23,773 Students
  • 2 Courses

Ritvik Dave is enthusiast in online learning and teaching. He is a Internet of Things developer, teacher and author of various best selling online courses. Currently a Software Engineer, Ritvik pursued his bachelor's degree in Electronics & Communication Engineering from Techno India NJR Institute of Technology, Udaipur, India.

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