530 W Be Quiet Dark Power L7 power supply

530 W Be Quiet Dark Power L7 power supply
Be quiet! Power supply features a quiet operation, a very high quality workmanship, high efficiency and extensive features. With these features, the producers lined up in the Topriege is therefore one of the most popular brands in this segment. With Pure Power L7 series expands be quiet! its offering to now specially priced models with simple facilities, but the same high performance, efficiency and good workmanship. (more…)

Mobile Charger with Voltage Converter

Mobile Charger with Voltage Converter
The circuit allows a simple and safe charging of 1-10 Ni-Cd or Ni-MH cells from a 12V source. The voltage converter can be operated at 6V, in this case is the max. output voltage 12V (no load). The performance can be improved through the use of Schottky diodes (D2/D3). D4 (LED) can omitted if you dont want any indicator. An astable Mutivibrator generates the oscillation frequency. At the output (pin 3) connected the voltage doubler. At C5 is idling

How to Install Computer Power Supply

How to Install Computer Power Supply
This is 10 easy ways how to setup new PC power supply : Unscrew the 4 screws supporting your previous power supply in the pc case. Take the existing power supply outside, and place it next to the pc case (If you do not know the power supply cable attached to the motherboard, do not unplug the cable first, we'll do it later) Place the new power supply directly into your pc case. (more…)

12V to 220V 100W Inverter

12V to 220V 100W Inverter
The following circuit  Inverter 100W, simple to use and excellent ideas. If we want to work with the electrical equipment outsite home that has a voltage 220Volt /AC 50HZ, that only have  around 100Watt not exceed.  Yo need Small power inverter around 100Watt. This inverter perform modify from work electrical power forces of electric battery 12 volt provide high voltage to work. (more…)

Automatic power switch for ATX power supplies

Automatic power switch for ATX power supplies
If you have a computer, for example, wants to operate for a long time like a server,  when using a standard ATX power supply the  problem exist  after a power failure that the computer is'nt automaticaly turn on. A few motherboards can do those  function, just to set using the BIOS Setup, and the other way is to make the automatic power switch. An ATX power supply is normally controlled by the motherboard.  ATX power supply provides a  5

Simple 12 Volt Battery charger

Simple 12 Volt Battery charger
This kind of battery charger circuit will quickly and easily recharge almost every lead acid battery pack.This battery charger supplies maximum current till the current drawn by the battery falls to 150 miliamper. At this point, less voltage will be applied to complete and avoid over charging. Once the lead acid battery is completely charged, this circuit goes off and lights up the led, showing that the battery has completed to be charged. A suitable heat sink should be

Unregulated Power supply for high-end audio amplifier with two polarity

Unregulated Power supply for high-end audio amplifier with two polarity
The Power supply for high-end audio recommended for work with with your hi-fi amps shown in the project is actually very simple, without any good skill level is needed to create (or even design) one. There are several factors you should be cautious with, like the routing with higher current leads, however, these can be completed. Form of the following Power supply for high-end audio is simple. A single four Ampere fuse is required to protect the transformer and

A Simply 9V / 2A Power Supply

A Simply 9V / 2A Power Supply
A simple 9 Volt 2 amp power supply using a single IC regulator. This is very simple circuit. Everything is done by the regulator. The 78S09 can provide up to 2 amps continuous output while maintaining a low noise and very nicely regulated supply. (more…)