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Tera Ohm Meter - Power Supply

The parts list which is not in the circuit is listed below, the circuit is 15 years old so you may h...
 

Dual Instrument Power Supply

Every electronic gadget primarily needs a D.C, power supply to energize it. It also forms the basic ...
 

LM555 Voltage Doubler

This circuit shows the voltage doubler working with a 555. LM555 has good drive 200mA, both Vcc and ...
 

Tubelight Electronic Choke

This is an electronic choke for a Conventional Fluorescent Lamp. This was an application note of MJE...
 

Dual Power Supply

This supply gives both positive and negative outputs. Appropriate Fuses should be used to protect fr...
 

Solid State Relay

This is a DC controlled Solid State Relay which can turn 230V AC equipment on and off. The output is...
 

Battery Backup Supply

This is a 9V power supply which will work even on power failure. It uses a rechargeable battery and ...
 

Digital 5V Power Supply using L296

This circuit is derived from an application note of L296, It is a Power Switching Regulator from ST....
 

5V -1A Power Supply using LM2575

This circuit is derived from an application note of LM2575, It is a Power Switching Regulator from N...
 

Single Power Supply

This circuit uses a PNP Power Transistor TIP2955, you can use any other according to your current an...
 

Mains Voltage Indicator with a LED

This is a mains 230V AC voltage indicator and is a LIVE CIRCUIT, so take care. The Resistor has to ...
 

Mains Current Indicator with a LED.

This is a mains 230V AC load current indicator and is a LIVE CIRCUIT, so take care. The Resistors h...
 

Isolated dual power supply

diode should be fast recovery type, for less than 100mA use 1N4148. transformer, pri-20-20, sec-60-6...
 

Dimmer or power control

you can use it with a bulb to vary brightness of bulb, this is a live circuit it can give a shock, e...
 

Drive SCR thyristor with 555

this circuit gives a burst of pulses to fire 2 SCRs, when pin 4 is taken to 12V the SCR is turned on...
 

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