Adjustable Voltage Stabilizer

Adjustable Voltage Stabilizer An adjustable voltage stabilizer is an integral part of a modern radio electronic device. The voltage stabilizers most commonly used for this application are integrated voltage stabilizers - or integrated circuits. In most cases these are microchips designed for a standard fixed voltage value. However, some cases require voltage that is different from the standard one. Or we might need a power source with adjustable output voltage. Such power source can be assembled using a microchip - an adjustable voltage stabilizer, say, LM317. This microchip is offered be many producers and in different configurations, for various load currents, and, respectively, in a variety of cases - from SO-8 to ТО-3. The standard microchip connection circuit is very simple and requires just a small number of additional elements. The power unit consists of a step-down transformer, a diode bridge and evening capacities. An input capacitor needs to be connected to eliminate high-frequency generation in step-like connection of input voltage. The output capacitor provides stability in pulse changes of the load current and decreases the level of pulsation. The output voltage is adjusted using a variable resistor, which forms a bleeder together with the fixed resistor R1. By changing the resistance of a variable resistor we control the output voltage, according to the formula. 1.25 coefficient in this formula is the value of voltage reference. This device will help you power various devices that require power voltage that is different from the standard one. It will also be able to replace a couple of power units with standard output voltage.