In this post we are going to understand about how this DPDT relay actually works, how we identify its pinouts, and how we can use it in our projects. We shall go step by step so that you can feel confident with every small thing about it. Introduction We know that a DPDT relay means […]
Testing
Dummy Load Circuit for Testing Power Supplies and Amplifiers
In the following post I have explained two straightforward dummy load circuits: the first one can be used for testing high current power supplies, and the second design can be used for testing large power amplifiers. Suppose you have a 10 amp power supply and you want to confirm the 10 amp output through some […]
Understanding MOSFET Avalanche Rating, Testing and Protection
In this post I have explained MOSFET avalanche ratings, and learn how to understand this rating in the datasheet correctly, how the parameter is tested by the manufacturer, and measures to protect MOSFETs from this phenomenon. The avalanche parameter not only helps to verify the devices ruggedness, it additionally helps filtering out weaker MOSFETs or […]
Testing Alternator Current using Dummy Load
In this post I have explained a method of checking or verifying alternator maximum current delivering capacity using a shunt regulator as the dummy load and an ammeter. The idea was inquired by Mr. Joe. Circuit Question I need help designing an electronic dummy load that can handle high enough power from motorcycle alternator. I […]
Battery Health Checker Circuit for Testing Battery Condition and Backup
In this article I have explained a simple battery health checker circuit which uses ordinary components for enabling the user to get an instant reading of the battery efficiency or regarding its effective discharge rate. The idea was requested by Mr. Shrishail. Circuit Objectives and Requirements I need a circuit of a battery checker. It […]