57V variable power supply up to 1.5 A

57V variable power supply up to 1.5 A
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. (more…)

Variable 4 A/25V Power Supply

Variable 4 A/25V Power Supply
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. (more…)

A simple variable power supply circuit with L200

A simple variable power supply circuit with L200
Variable power Supply scheme shown here is very simple, its used regulator IC L200 (ADJUSTABLE VOLTAGE AND CURRENT REGULATOR). L200 is a monolitthic IC for current and voltage programmable regulation. It has current limiting, power limiting, thermal shutdown, and over voltage protection. (more…)

Universal Power Supply Module 3V-30V

Universal Power Supply Module 3V-30V
This universal power supply circuit provides a variable voltage between 3-30 V. The power supply provides maximum current 1.5 A and with a few modifications and additions to modules can provide a higher current. (more…)

Adjustable Voltage Regulator 3 Ampere

Adjustable Voltage Regulator 3 Ampere
In this scheme, adjustable voltage regulator IC 78L05 is used in conjunction with the integrated audio amplifier TDA2030 . Because of this, the stabilizer was very simple. The output voltage is regulated to 20 V with maximum current of 3 A. IC TDA2030 is protected against overheating and short circuits, making it a very reliable regulator. (more…)

Variable Power Supply 0 to 12 V

Variable Power Supply 0 to 12 V
This Power supply circuit is powered by 12 volt AC power supply rectifier diodes form VD1 ... VD4, included in a bridge circuit and the rectified voltage stabilizer - capacitors CI, C2, zener VD5 and transistors VT1 and VT2. Voltage power supply output from 0 to 12 regulate the variable resistor R2. The highest current given up power supply to the load (300 mA) is limited to permissible direct current rectifier diodes. (more…)

Simple Variable Power Supply using L4960

Simple Variable Power Supply using L4960
Modern circuit design and chip manufacturers make life easier for the designer's great-for example, when creating a power source. We demonstrate this on a chip factory L4960. The documentation on it is possible to produce regulated power supply with an output voltage of 5.1 V. .. 40 V, with load current 2.5 A, built-in protection for current and overheat, efficiency up to 90%. Power dissipation from the radiator - 15 watts, frequency conversion 50 .. 150 kHz. (more…)