More about power (1010)

1-12-1993 | The transmitters is a crystal-controlled, battery-powered, one-chip narrow-band FM (NB FM) model for operation in the 27-MHz band, primar...

1-12-1993 | A symmetrical power supply may be designed from two standard opamps, but it can only provide a small current (of the order of a few mA).

1-12-1993 | The lamp in slide projectors is normally controlled with the aid of a triac in series with it. This method reduces the brightness of the...

1-12-1993 | A module is described that enables a mains powered device of up to 275 VA to be controlled bya PC via the I²C bus. Since a direct connecti...

1-11-1993 | This series is intended to help you with the quantitative aspects of electronic design: predicting currents, voItage, waveforms, and other...

1-11-1993 | MOSFET output transistors should be as near-identical as possible, irrespective of whether they are complerilentary pairs or connected...

1-10-1993 | There is little to say about the true r.m.s. converter. The circuit diagram shows a standard application of the AD736JN, connected to a n...

1-10-1993 | This nickel-cadmium (Ni Cd) battery charger is capable of charging up to eight cells individually. The power semiconductors needed to acco...

1-09-1993 | The prototype loudspeaker system is housed in a 90 cm (36 in) high enclosure, details of which are shown in this article. The drive unite...

1-07-1993 | Often only a single power supply is available for an opamp circuit. Since such circuits normally require a double supply, this means that...