The article details a PWM speed controller circuit for a fan air blower system to be used in Biomass cook stoves. The circuit also includes an uninterrupted automatic battery back-up supply with an integrated automatic battery charger circuit for the particular application. The idea was requested by Mr. Tushar and Sivaranjani. Technical Specifications Thanks for […]
Newly Updated Circuit Projects:
2 Simple Washing Machine Circuits Explained
In this post I have explained how to make a couple of simple washing machines using a bidirectional single motor with timer and a simple version using cam shaft mechanism, cheaply. In the first design we use a bidirectional, alternately rotating clockwise and counter clockwise with a pause in the middle: Audio/Video Representation Circuit Working […]
Borewell Motor Pump Starter Controller Circuit
In this post I have explained a circuit which controls a submersible borewell motor by operating its red (Start) and green (Stop) buttons, in response to low level, high level water conditions, and also in a condition where the motor may experience a dry run situation. The idea was requested by Mr. Vamsi. Automatic Start/Stop […]
Greenhouse Motorized Water Diverter and Humidity Controller Circuit
In one of the previous posts I have explained the making of a greenhouse temperature controller circuit, here we study how the effects may be enhanced through an automatic water valve actuator and humidity controller circuits. The idea was originally requested by Mr. Leandros Komninos Technical Specifications Found one on ebay, these are the detail […]
Delay based Motor Speed Controller Circuit – Timer Controlled
In this post I have explained a delay OFF adjustable motor controller circuit so that the motor can be assigned a fixed predetermined operating time, or delay OFF time. The idea was requested by Mr. Cribey Technical Specifications I really like your website. It is very helpful for so many people. I am trying to […]
How to Make a PWM Controlled Fan Regulator Circuit
In this article we look into a simple 220V mains PWM controlled fan or light regulator circuit which does not require a microcontroller or costly triac drivers for the intended operations. Capacitive Phase Chopping All Ordinary types fan regulator and dimmers which rely on capacitive phase chopping technology have one drawback in common, these generate […]