Junior Member level 3
i need a regulated DC supply of 12V to power a device, but when i use LM7812 voltage regulator there is always a normal voltage drop of 1V, thereby having 11V instead of 12V. Is there any way i can get exact 12 V DC. Or, is there a realistic calculator or formular to use to determine the value of voltage regulator, and input capacitor(s) to be used! thanks.