Power supply device and electronic apparatus using the same

Details Power supply device and electronic apparatus using the same Power supply device and electronic apparatus using the same

1990-10-25

1992-06-23

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Conductor arrangements or structure

307 89, 307149, 333 12, 361341, 363 39, H02B 100

Patent

active

051245671

ABSTRACT:
A power supply device has its power supply conductor bars, in which a.c. currents caused by a.c. noises flow in the same direction, laid closely in parallel while retaining their insulation thereby to increase the total inductance so that the impedance increases without accompanied by an increase in the d.c. resistance of the power supply conductor bars. An increased coupling impedance of the power supply conductor bars effectively attenuates the a.c. noises from d.c. power units, which then supply d.c. power with reduced a.c. noises to an electronic apparatus such as a computer through the power supply device.

REFERENCES:
patent: 4262328 (1981-04-01), Bloom et al.
patent: 4342013 (1982-07-01), Kallman
patent: 4355352 (1982-10-01), Bloom et al.
patent: 4888675 (1989-12-01), Kumar et al.

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