In this post I have explained a simple IR remote control circuit which can be used for controlling many appliances independently through a single transmitter handset. The idea employs ordinary components like IC LM567, IC 555 and does not incorporate microcontroller devices. The idea was requested by Mr. Saeed Abu and also other dedicated readers […]
Newly Updated Circuit Projects:
Mains 20 Watt Electronic Ballast Circuit
In this post I have explained a simple 20 watt fluorescent ballast circuit using a single chip FAN7711 from Fairchild semiconductor. The proposed mains 220V operated, 20 watt fluorescent ballast circuit is built around an LCC resonant tank and a half-bridge network. Implementing Zero Voltage Switching The main features and operations may be understood with […]
Grid-tie Inverter (GTI) Circuit Using SCR
Grid-tie inverter concepts may appear to be complex due to the many criticalities involved with them, however with some intelligent thinking it could be actually implemented using primitive technologies. One of the ideas has been explored here. Introduction The discussed idea of a simple grid-tie inverter circuit was suggested by one of the interested readers […]
Single IC Dimmable Ballast Circuit
In this post I have explained a simple 25 to 36 watt ballast circuit which can used for all fluorescent tube applications within the allocated range. The circuit of the proposed electronic fluorescent ballast may be understood through the following discussion: The Preheater Stage The half-bridge stage comprising the two mosfets are triggered by the […]
4 Automatic Staircase Lamp Controller Circuits Explained
In this post I have explained 4 innovative automatic staircase lamp controller circuits which will automatically switch ON and OFF the staircase lamps in response to an external trigger. We will discuss 4 concepts here, which are as follows: 1) Automatic Staircase Lamp Circuit using PIR The first automatic staircase light circuit describes a simple […]
Darkness Activated Car Head Lamp Circuit with DRL
In this post I have explained a simple automatic darkness activated switch for car head lamps and the DRLs, initiated by the ignition triggers. The circuit helps to save battery power and prevents unnecessary wastage of energy. The idea was requested by Mr. Vladnemir. Technical Specifications I would like to build switch for driving car […]