9v bataryadan -5v üretmek

  1. guclusat

    9V Bataryadan -5V Üretmek

    A 555 timer can be used to generate a squarewave to produce a negative voltage relative to the negative battery terminal. When the timer output at pin 3 goes positive, the series 22 uF capacitor charges through the diode (D1) to about 8 volts. When the output switches to ground, the 22 uF cap...