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Consumer Electronics by S. P. Bali

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CHAPTER 21

POWER SUPPLIES

The common denominator of all transistor circuits is the dc power supply. Some circuits require higher voltages or a greater current supply, but all transistors require dc power to function. It can be said that the power supply provides the “life blood” for any equipment. In addition to the basic requirement of providing a suitable supply for operating transistor circuits and integrated circuits, consideration of the design of power supplies includes several other aspects, such as the use of diodes and transistors in voltage stabilising circuits. Considerable developments have taken place in the design of voltage stabilising circuits, and it is significant that these stabilising circuits, form an important application ...

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