The post explains a smart mains fire hazard protector circuit which can be used for preventing mains grid transformers from over heating and causing sparks or even burning due to […]
Voltage Control and Protection
Automatic Generator Choke Actuator Circuit
The post explains a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device. The circuit was requested by Mr. Bob Perry. Technical […]
Automatic Voltage Regulator (AVR) Analyzer
The post below discusses an automatic voltage analyzer circuit which can be used for understanding and verifying the output conditions of an AVR. The idea was requested by Mr. Abu-Hafss. […]
Using an NTC Thermistor as a Surge Suppressor
A Negative Temperature Coefficient (NTC) thermistor is a device which is able to suppress switch ON current surge due to its initial higher resistance at room temperature. However, as the […]
Mains AC Overload protection Circuit for Voltage Stabilizers
In this article we discuss how to make a cheap yet effective mains operated AC overload and over-current protector circuit using very ordinary discrete components. Introduction I have published a […]
Simple Voltage-to-Current and Current-to-Voltage Techniques – By James H. Reinholm
There are many types of voltage-to-current and current-to-voltage converter circuits, and most of them use a combination of opamps and transistors to achieve a high level of accuracy. But when […]