Archive for the 'dc voltage variable' Category

LM317 Overvoltage Protection Circuit

Thursday, February 11th, 2010



It is a voltage regulator that allows a 6v carriageable accumulation to be acquired from the 12v car battery. You can add a 6.2V zener diode and a LED to acquaint you back the ascribe accumulation is overvoltage. If you could acquisition a broadcast that would accomplish from 6.2v appropriate up to 12v that you [...]

Stabilized Adjustable Power Supply LM337 2-30V 10A

Tuesday, January 26th, 2010



Here’s an adjustable power supply that is a positive tension. But we use a negative voltage stabilizer. The circuit is something else but it has a big advantage. We now have the final transistor whose Collector often to the house is not to isolate the cooling plate!.
We can now as the transistor to the closet [...]

LM138 5A Adjustable Regulators

Tuesday, January 26th, 2010



The LM138 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 5A over a 1.2V to 32V output range. They are exceptionally easy to use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation—comparable to many commercial power [...]