In this post we are going to make a digital socket timer using Arduino whose countdown time can be witnessed via 16 x 2 LCD display. Introduction The proposed circuit […]
Timer and Delay Relay
As we know a relay is an electro-mechanical device which is operated with an electrical signal to move its internal contacts through electromagnetic pull and these contacts in turn is used to toggle a heavier load working with mains AC or higher voltages.
When a relay is operated with timed delay it becomes a delay relay switch.
In this category we learn how to build many such small and big timer circuits which could be integrated with relay for creating delay relay switches.
Under this category you will find a substantial number of small and big timer circuits as per your specific needs which could be combined with a relay to constitute a timer based relay switch.
A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of […]
In this post we learn how to make a timer circuit for fitness, or gym workout application. The idea was requested by Mr. Jan. Circuit Objectives and Requirements I need […]
The post discusses a simple food warmer lamp timer circuit for restaurants and hotels which can be used for automatically switching OFF the lamps after a predetermined time whenever the […]
The post details a timer circuit for submersible borewell pumpset which alternately switches the pumpset ON/OFF at a predetermined rate in order to allow the ground water sufficient time to […]
The post talks about an IC 4060 timer circuit problem implemented in a coffee wending machine, in which the circuit simply stops working each time its stipulated delay period is […]