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Simple Triac Timer Circuit

Last Updated on January 2, 2024 by Swagatam 153 Comments

Here’s a simple triac timer circuit which can be used for switching ON a particular device after a predetermined time, set through the given pot or the variable resistor. The shown circuit diagram of a simple triac timer can be understood by referring to the following explanation: How it Works The left hand side section […]

Filed Under: Timer and Delay Relay Tagged With: Simple, Timer, Triac

2 Simple School Bell Timer Circuits Explained

Last Updated on January 19, 2025 by Swagatam 15 Comments

school2Bbell2Btimer2Bcircuit

In this article I have explained two very useful school bell timer circuits which can be used for ringing school bell automatically for each period as per the set time duration. The first circuit is designed using a handful of IC 4060, and the second circuit concept is configured around the IC 4017. I have […]

Filed Under: Timer and Delay Relay Tagged With: Bell, Circuits, Explained, School, Simple, Timer

Programmable Bidirectional Motor Timer Circuit

Last Updated on June 17, 2019 by Swagatam 15 Comments

programmablemotorcontrolcircuit

In this post I have explained a programmable bidirectional motor timer circuit for controlling a custom industrial mechanism. The idea was requested by Mr. Milton Technical Specifications I am a glass specialist, pretty good with DIY etc, but not too hot on electrics. I am planning a build for a 10mm Toughened Glass Watch display […]

Filed Under: Timer and Delay Relay Tagged With: Bidirectional, Motor, Programmable, Timer

Poultry Feed Controller Timer Circuit

Last Updated on June 17, 2019 by Swagatam 4 Comments

poultryfeedcontrollercircuit

In this article I have explained a timer circuit specifically designed for detecting a poultry feed controller ON time period, and alarming a buzzer once the set time elapses. The idea was requested by one of readers of this blog. Technical Specifications Hello, I am a broiler poultry farmer. I have no electronic knowledge or skills. […]

Filed Under: Timer and Delay Relay Tagged With: Controller, Feed, Poultry, Timer

Timer Controlled Exhaust Fan Circuit

Last Updated on January 14, 2023 by Swagatam 36 Comments

timer controlled exhaust fan circuit

This simple timer oscillator circuit can be used for automatically switching an exhaust fan ON/OFF as per a fixed predetermined period. The circuit was requested by Mr. Anshuman. Technical Specifications Here is a  suggestion for the circuits on your blog. The idea is to have a very simple Oscillating circuit will delays of 5-10 minutes to […]

Filed Under: Timer and Delay Relay Tagged With: Controlled, Exhaust, Timer

Single Mosfet Timer Circuit

Last Updated on April 3, 2021 by Swagatam 73 Comments

mosfetasdelaytimercircuit

The following article discusses the use of a mosfet as a switch for toggling high current loads efficiently. The circuit can be also transformed into a delay OFF circuit with simple modifications. The design was requested by Mr.Roderel Masibay. Comparing Mosfet with BJT A field effect transistor or mosfet can be compared with a bjt […]

Filed Under: Timer and Delay Relay Tagged With: MOSFET, Single, Timer

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