24V and 25V Power Supply with 2A Current
I am looking for a 25V Power Supply with 2A current for my Application. A regulated supply. TA – US Here is a simple to build regulated power supply. The two diodes are to...
Monthly Archive: February 2019
UPS and Inverter Schematics
Do you perhaps have an inverter schematic for a sinewave inverter or stepped squarewave using the SG3525 chip. I’m also interested in connecting the inverter to the grid via a solar panel. I hope...
Making Coils and Transformers
Message – Can we make Coils and small transformers at home. I have copper wire and some lamination in my stores. – 2005 IJ – AF Making Transformers with good isolation and safety is...
Digital to Analog Converter with uC Watchdog
This is the continuation of the earlier post. Part of 80C39 based Process Controller. In this schematic you can see the Watchdog and D/A Converter. 80C39 and MCS48 based Process Controller is the main...
Battery Backup Supply
This is a 9V power supply which will work even on power failure. It uses a rechargeable battery and regulators. A transformer with 15-0-15 AC volts output is required. From my Power Electronic Circuits...
Perpetual Candle – White LED Lamp on Ni-Cd
This is a easy to build LED lamp circuit for Learning and building skills. This is the first draft schematic V 1.0. It will need improvements for Higher Power Lighting. I will give a...
