LM317T Voltage Regulator with Pass Transistor

Voltage Stabilizer Krauler VR-RThere is a saying: "A peasant needs thunder..." Therefore, many people think: "My equipment has never burned out. Why do I need a stabilizer?" As a matter of fact, the cost of a stabilizer is minimal. Especially in comparison with the cost of a plasma TV, a home theater, a Hi-Fi system or a simple laptop. And the protection provided by the stabilizer is really fail-safe. When this "thunder" shows up, the stabilizer will save both your expensive equipment and your wallet.Let us take, for example, the voltage stabilizers of the series R by Krauler. This device is quite compact and is designed primarily for home use. The front panel has digital red LED display that can show the information about the voltage at the input and at the output of the stabilizer. In normal mode the output voltage is indicated. In order to see the value of the input voltage you need to push the "INPUT/OUTPUT" button.Under the main display there are three LEDs: green, yellow and red. The glow of the first one ("WORKING") indicates that the stabilizer is connected to the mains and is ready to operate. The glow of the red LED ("UNUSUAL") accompanied by a sound signal indicate that the value of the output voltage does not correspond to the calculated one. If the voltage is too high the letter "H" is displayed on the digital display, and if it is below 140 V, then the "L" letter lights up.The device supports the function of delay in applying voltage to the output sockets of ...



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