0-30 vdc stabilized power supply with current control 0.002-3 a
0-30 vdc stabilized power supply with current control 0.002-3 a circuit

0-50V 2A Bench power supply
0-50V 2A Bench power supply circuit

10 Amp 13.8 Volt Power Supply
10 Amp 13.8 Volt Power Supply circuit

12 Volt 30 Amp PSU
12 Volt 30 Amp PSU circuit

120 VAC Lamp Dimmer
120 VAC Lamp Dimmer circuit

12V Inverter
12V Inverter circuit

13.8V 20A power supply
13.8V 20A power supply circuit

2 Watt Switching Power Supply
2 Watt Switching Power Supply circuit

2W Switching Power Supply
2W Switching Power Supply circuit

3-30 V/2.5 A Stabilized power supply
3-30 V/2.5 A Stabilized power supply circuit

500W low cost 12V to 220V inverter
500W low cost 12V to 220V inverter circuit

5V/1A Power Supply
5V/1A Power Supply circuit

6V to 12V Converter
6V to 12V Converter circuit

A simple step-up converter (6V to 12V)
A simple step-up converter (6V to 12V) circuit

AC Current Monitor
AC Current Monitor circuit

Basic UPS Power Supply
Basic UPS Power Supply circuit

Batteries charger & PSU - ideal for digital cameras
Batteries charger & PSU - ideal for digital cameras circuit

Constant Current Battery Charger
Constant Current Battery Charger circuit

DC to DC Converter
DC to DC Converter circuit

Dual Polarity Power Supply
Dual Polarity Power Supply circuit

Dual Regulated Power Supply
Dual Regulated Power Supply circuit

Fixed Voltage Power Supply
Fixed Voltage Power Supply circuit

Fuse Monitor / Alarm
Fuse Monitor / Alarm circuit

High and Low Voltage Cutout with delay and Music
High and Low Voltage Cutout with delay and Music circuit

High Current Power Supply
High Current Power Supply circuit

High Voltage, Low Current Supply
High Voltage, Low Current Supply circuit

Instrument panel lamp dimmer control
Instrument panel lamp dimmer control circuit

Inverter
Inverter circuit

LASER Power Supply
LASER Power Supply circuit

LM317 VARIABLE POWER SUPPLY
LM317 VARIABLE POWER SUPPLY circuit

Negative Supply from single positive Supply
Negative Supply from single positive Supply circuit

Ni -Cd Batteries Charger
Ni -Cd Batteries Charger circuit

Ni-Cd Battery Auto Charger
Ni-Cd Battery Auto Charger circuit

Nicad Battery Charger
Nicad Battery Charger circuit

NiCd - NiMH Charger
NiCd - NiMH Charger circuit

Over / Under Voltage Cut-Out
Over / Under Voltage Cut-Out circuit

Portable CD Player Adapter For Car
Portable CD Player Adapter For Car circuit

Power-Off Time Delay Relay
Power-Off Time Delay Relay circuit

Power-On Time Delay Relay
Power-On Time Delay Relay circuit

Pulse Charger for reviving tired Lead Acid batteries
Pulse Charger for reviving tired Lead Acid batteries circuit

Regulated 12 Volt Supply
Regulated 12 Volt Supply circuit

Self switching Power Supply
Self switching Power Supply circuit

Self-powered Fast Battery-Tester
Self-powered Fast Battery-Tester circuit

Simple Car Battery Charger
Simple Car Battery Charger circuit

Solar charger for lead-acid batteries
Solar charger for lead-acid batteries circuit

Solid State Tesla Coil/High Voltage Generator
Solid State Tesla Coil/High Voltage Generator circuit

Transformerless Power Supply
Transformerless Power Supply circuit

TTL Power Supply with ‘Crowbar’ protection
TTL Power Supply with ‘Crowbar’ protection circuit

Ultra low drop linear voltage regulator
Ultra low drop linear voltage regulator circuit

Variable 3 - 24 Volt / 3 Amp Power Supply
Variable 3 - 24 Volt / 3 Amp Power Supply circuit

Variable DC Power Supply
Variable DC Power Supply circuit

Variable Voltage and Current Power Supply
Variable Voltage and Current Power Supply circuit

Varying brightness AC lamp
Varying brightness AC lamp circuit

Voltage Inverter
Voltage Inverter circuit

Voltage Inverter II
Voltage Inverter II circuit

Whistle On - Whistle Off
Whistle On - Whistle Off circuit