Archives: Projects
AC Solid state Relay for Inductive Load
AC Solid state Relay for Inductive Load offers simple On/Off type Switch Control with TTL compatible input signal. Input signal : 2 ~ 5 VDC, TTL compatible Output : up to 500 W Mains supply input 230 VAC or 110 VAC Optically isolated Triac based design Power Battery...
Continue Reading12V @ 120mA Transformerless Power Supply
The circuit provided here is a transformer-less non-isolated power supply which is capable of delivering an output of 12V at 120mA current for an input voltage varying from 85VAC-265VAC. The LNK304 is the heart of this circuit which supports buck boost and flyback topologies. This...
Continue Reading5V Symmetrical Regulated Power Supply – 1A
This Project provides Positive and Negative (Dual Output) 5 V @ 1 A Regulated Power Supply. Specifications Input 7-0-7 VAC to 12-0-12 VAC or +/- 9 to 18 VDC Output : Dual output ± 5 V @ 1 A regulated low ripple DC voltage Heat-sink for regulator ICs Onboard bridge...
Continue ReadingLM386 SMD Audio Amplifier Module
The Tiny Audio Amplifier MODULE is a good choice for battery operation. It is based on LM386 IC, useful in various applications like robotics, science projects, intercom, FM radio and many more. Specifications Power Supply 6V-9V 300mW Output @ 8Ohms Load On Board...
Continue Reading12V @ 80mA Transformerless Power Supply
In electronics field, generating low voltage DC from AC mains (220V/110) is often necessary. Many electronic circuits work at an input voltage levels of 5V or 12V etc. For such circuits a transformer has to be used to step down the AC mains voltage to the required DC voltage level....
Continue ReadingDC Output Solid State Relay
DC Output Solid State Relay 10Amps 60V DC (Optically Isolated Input) This project has been designed around TLP250/352 which is Opto-Coupler IGBT/MOSFET Gate Driver from Toshiba and Mosfet IRFP260 from IR, This relay consists of optically isolated gate driver and low impedance...
Continue Reading555 Based DC Motor Speed Controller
555 DC Motor Speed Controller project will control the speed of a DC motor connected to it. This project is built using the popular 555 timer IC. Specifications Power supply input 5-12V DC Motor Load Up to 1 to 2Amps Onboard preset to vary Duty Cycle from 10% to 95% @...
Continue Reading5V @ 2A Step Down Converter using TPS54202
The circuit shown here is a step down converter which can convert an input voltage varying from 8V to 28V to 5V. The circuit is based on TPS54202, which is a 2A synchronous buck converter. This IC has several features such as over-voltage protection and peak current mode...
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