In each workshop you must have a source that is able to provide each current and voltage in a quite acceptable range of possibilities. This variable power supply device goes beyond the conventional power supply source (which rarely exceed 24V output) gives the maximum 57V with 1.5A current.
All workshops or laboratories must have a power supply for general purpose that can supply voltages and currents.
This time we get a adjustable power supply with output voltages between 1.2 and 25V the maximum current of 4A. This is very useful for laboratory power supply or workshop power supply.
Tags: 25v power supply, 4 ampere, general purpose power supply, laboratory power supply, variable power supply circuit, variable power supply schematic, variable regulated power supply, workshop power supply
One of the most needed instruments in electronics lab is adjustable power supply, allowing you to feed each circuit is tested or constructed for the required voltage and current.
The adjustable power supply circuit shown here is just a linear power supply, a bridge rectifier and filter capacitor that it attach series voltage regulator. Furthermore, here was provided by a pair of fixed instruments that allow us to know at any time the voltage given in the output and load current used.
This adjustable power supply circuit provides an output voltage source which can be adjusted between 1.5 and 15 volts and give 15 amps current.
As is shown in the wiring diagram the 15 A adjustable power supply provides similar amount of current through the parallel work of four power transistors, which must be mounted on a good heatsink. The voltage adjustment is performed in integrated LM317, which also must be dissipated mechanically.
This Symmetrical regulated power supply and variable power supply 0 to 30V 2A circuit does not require further explanation, which is a controlled variable symmetric source, can deliver up to 15V per line (-15 and +15), or up to 30V as a whole, for the consumption of up to 2A, but with some changes could be modified to provide up to 5A ** (or more). Transistors Q1 and Q2 should be installed on a heat sink, as well as integrated LM337 and T LM317 which is in the TO-220 package.
Tags: +- 15 v power supply circuit diagram, 15 V power supply, 15 v Symmetrical regulated power supply, dual 15 v power supply circuit, dual power supply circuit, Symmetrical regulated power supply, variable power supply 0 to 30V
This DC power supply circuit diagram is designed as an additional or as a permanent power supply for all general circuits based on a stable DC voltage between 3 and 30V provided that current consumption does not exceed 3A. Of course, this DC power supply can also be used to other purposes. By replacing the trimmer by a potentiometer, it can even be used as adjustable supply unit. A good quality heatsink must be used.
This Adjustable regulated power supply circuit uses voltage regulator LM723 IC which are already well known. IC LM 723 is designed to provide a voltage of 2-37 volt supply voltage with 150mA current, and this current is small indeed, but with the help of an external transistor can be achieved current up to 10 A, and in this circuit can provide voltage 3-30V and is limited to 2.5 A currnt with the help of TR2.