The diagram shows the circuit of a versatile USB power socket that safely converts the 12V battery voltage into stable 5V. This circuit makes it possible to power/recharge any USB power-operated device, using in-dash board cigar lighter socket of your car.

This 6V to 12V converter circuit is made with an IC from SGS with several additional components. The IC is a TDA2003 but it can be replaced with a TDA2002. The cost of building the 6volts to 12 volts converter should be low enough to justify constructing it instead of modifying the entire equipment setup to work directly with a 6 volts power supply. The two principles of simplicity and functions properly without the need of the transformer.

SilverStone power supply series ST75EF can deliver exceptionally high efficiency with greater than 80% within 20% to 100% loading and its 750W continuous output has dual +12V rails with 60A combined output, moreover, its quad PCI-E 6 pin and single PCI-E 8 pin connectors can support up to the needs of highest graphic cards on the market.
SilverStone is well known for their extremely stylish cases and enclosures. Their power supplies are also considered to be high quality and very reliable. Today, we are going to take another look at the Element series of power supplies. The ST75EF, has the same ‘ST’ in the beginning of the model number as the Strider series, so it may be a little confusing. The Element series offers a multitude of wattages ranging from 400 watts to 850 watts. We are going to be taking a look at the 750 Watt version. This power supply is 80Plus Bronze certified and features a 3 year warranty.
For enthusiasts, the compact size (160mm) of ST75EF is another advantage for easy integration for any sizes of chassis and it is ready to deliver in any high powered environment for serious work or play.

This converter has a central component, the CMOS 4047, and converts a 12V DC voltage to 220V AC voltage. 4047 is utilised as a astable multivibrator. At pin 10 and 11 we find a rectangular symmetrically signal which is amplified by tow Darlington transistors T1 and T2 and finally reaches the secondary coil of a transformer network (2 x 10V/60VA). Primary coil terminals voltage is 220 alternative voltage. To obtain a better performance use a toroidal core transformer with reduced losses. With P1 the output frequency can be regulated between certain limits (50…400Hz).

Poulton Desktop Drives Lacie power supply info and reviews for Poulton Desktop Drives. Lacie is well known for their External hard drives, external, raid and network hard drive and therefore sometimes we need to buy a power supply.