Measuring high voltages 2007-10-23 20:19:00 Measuring high voltages - simplest way to get at least a rough value of tension is to measure the maximum distance the voltage can arc over Read more:Measuring
Kevin's Strobe Schematics - 12 V to 300 V 2007-10-23 20:17:00 Kevin's Strobe Schematics - 12 V to 300 V inverter for high repeat (1-10 times in second) rate medium power strobes Read more:Kevin
CAPS PROVIDE VOLTAGE BOOST TO SERIES REGULATOR 2007-11-06 08:03:00 CAPS PROVIDE VOLTAGE BOOST TO SERIES REGULATORThis circuit adds some capacitors and diodes to a traditional transformer type series regulator circuit to extend the normal operating range. It can insure regulation during low line voltage conditions or it can squeeze a few more watts out of a plug-in-the-wall power adapter power supply.
240VAC TO 5VDC POWER SUPPLY 2007-11-06 08:02:00 240VAC TO 5VDC POWER SUPPLY This is simple way to power some 5v logic from a 240vac source. If a 120vac power adapter is used, the circuit will also work for 120vac power lines.
LOW POWER 12,000 VOLT POWER SUPPLY 2007-11-06 08:00:00 LOW POWER 12,000 VOLT POWER SUPPLYIf you need about 12,000 volts DC for an ion generator this circuit might be the ticket. It draws power from the 120vac power line but it uses a small 6KV camera flash trigger coil. The output signal is isolated from the power line. Although the circuit can only deliver about 5uA of current it can produce dangerous shocks, so be careful.
MINIATURE ISOLATED AC/DC POWER SUPPLY 2007-11-06 07:58:00 MINIATURE ISOLATED AC/DC POWER SUPPLYThis circuit uses a novel approach to produce a fully isolated and regulated 5 volts @30ma from the 120vac power line. It uses two tiny SCRs that alternately discharge two capacitors through a miniature high frequency transformer. The voltage spikes produced through the transformer are rectified, filtered and regulated. A very common 8 ohm audio impedance matching transformer can be used for the transformer
Morse Code Practice Oscillator 2007-11-09 02:45:00 This simple code practice oscillator project for beginners to Continuous Wave Morse
Code uses a 555 timer to generate a dit or dah sound when the key is pressed.Read more : http://www.electronics-project-design.com/CodePractice
Oscillator.html
Ham Radio Circuit - Morse Code Filter Project 2007-11-09 02:37:00 This project will help to filter out the interference signal and ensure that the signal received from the Morse
code station stand out.Read more : http://www.electronics-project-design.com/HamRadioCircuit
.html Read more:Filter
, Project
DC DC Converter Circuit 2007-11-09 02:35:00 Get an output of 0.6V to 5.0V DC 10A from an input voltage range of 4.5V to 20V DC using Linear Technology DC DC Converter Module.Read more : http://www.electronics-project-design.com/DC-DC-Converter-Module.html Read more:Circuit
USB Battery Charger Circuit 2007-11-09 02:36:00 This application circuit uses the MCP73853/MCP73855 linear charge management controllers for cost sensitive applications. They are specially designed for USB applications and adhere to all the USB specifications governing the USB power bus.Read more : http://www.electronics-project-design.com/BatteryChargerCircuit
.html
Constructing a Dual Polarity Supply 2007-11-09 02:32:00 supply. With the appropriate choice of transformer and 3-terminal voltage regulator pairs you can easily build a small power supply delivering up to one amp at +/- 5V, +/- 9V, +/- 12V, +/-15V or +/-18V.Read more : http://www.electronics-project-design.com/DualPowerSupply
.html
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