More about Power Supplies (304)

1-12-1997 | In the testing of circuits, there is sometimes a need for the supply voltage to be switched on at a gjven time or in steps.

1-11-1997 | The magnification of very weak audio-frequency signals is and remains a precarious affair. That is why a microphone amplifier good en...

1-07-1997 | If you are after a small, reliable and inexpensive switch-mode power supply, National Semiconductor's LM257x series of switch-mode power...

1-07-1997 | At the heart of this power supply is the type 723 voltage regulator. Despite its age, the 723 is still popular among radio amateurs becau...

1-04-1997 | Electronic circuits have at least one thing in common: they need power to operate. The power supply described in this article has bee...

1-02-1997 | Following the detailed description of the preamplifier in last month's installment, this second and final part of the article deals with t...

1-01-1997 | Every week the average housewife stores a fair amount of food in the refrigerator (col- loq.UK:fridge). The low temperature in the fri...

1-11-1996 | high-efficiency power supply single regulator: two input voltages In a linear power An adjustable 3-pin voltage regulator is ideal for use i...

1-07-1996 | This circuit is based on the well known LM350T voltage regulator from National Semiconductor, and largely follow the standard application...

1-07-1996 | Many designers nowadays almost automatically include one of the popular 3-pin voltage regulators in power supply designs. It is almost as...