+12V5A ADJUSTABLE SWITCHED REGULATORa Circuit shows method of using LM109, 7805, or other IC voltage regulator to provide output voltage that is higher than rated output of IC. Voltage pedestal is developed across R2 and R, for adding to normal regulated output of IC. ... Power for cassette motor is taken directly from power-supply filter capacitors through 20-ohm 10-W resistor, with negativeanbsp;...
|Title||:||Special circuits ready-reference|
|Publisher||:||McGraw-Hill Companies - 1982|