Universal power supply, independent converter stages for respective hardware components of a computerized system
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United States of America Patent
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-
Dec 26, 1989
Issued Date -
N/A
app pub date -
Feb 17, 1989
filing date -
Jul 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a point of sale terminal it was desired to incorporate a variety of input/output devices, e.g. CRT display, disk drives and a printer in a compact hosuing, e.g. about 16 inches wide by 12 inches in depth (without frontally projecting keyboard) by about 11 inches high. The illustrated switching power supply occupies a rectilinear space of less than 155 cubic inches and has the capability of operating from either 110 or 220 VAC, 50 or 60 hertz, or from battery power, with essentially constant volt-second product, while supplying a maximum average output power greater than 120 watts, and a peak output power of greater than 280 watts.
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