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Compatible LED Tube Light Circuit for Standard Ballast Fixtures

In this article we will study a simple LED tube light circuit which could be directly replaced with faulty 40 watt T17 fluorescent tubes and fitted directly on the existing fixture. Thus the circuit is compatible with all standard iron ballast fixture assemblies. How Conventional Fixtures are Wired As shown in the below diagram, traditional … Read moreCompatible LED Tube Light Circuit for Standard Ballast Fixtures

Mains 20 Watt Electronic Ballast Circuit

The post explains 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 the following explanation: … Read moreMains 20 Watt Electronic Ballast Circuit

Single IC Dimmable Ballast Circuit

The post explains 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 IC for initiating … Read moreSingle IC Dimmable Ballast Circuit

40 watt Electronic Ballast Circuit

Simple electronic fluorescent ballast circuits are difficult to find and build. A simple homemade electronic 40 watt ballast circuit is neatly explained in this article. The PCB layout of the proposed electronic fluorescent ballast is also provided along with the torroid and the buffer choke winding details. Introduction Even the promising and the most talked … Read more40 watt Electronic Ballast Circuit

TSOP1738 Infrared Sensor IC Datasheet, Pinout, Working

The TSOP 1738 series ICs are used in order to operate infrared remote control systems and consists of a number of miniature receivers. The lead frame is used to assemble the preamplifier and PIN diode along with the IR filter which is a design of the epoxy package. A microprocessor is used to decode the … Read moreTSOP1738 Infrared Sensor IC Datasheet, Pinout, Working

3 Simple DC UPS Circuits for Modem/Router

In the following article we discuss 3 useful DC to DC uninterruptible power supply circuits or DC UPS circuits for low DC to DC uninterruptible power applications The first idea below presents a DC UPS circuit can be used for providing back up power to modems or routers during mains failures, so that the  broadband/WiFi connection … Read more3 Simple DC UPS Circuits for Modem/Router

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