G - Physics – 01 – R
Patent
G - Physics
01
R
324/58.1
G01R 31/28 (2006.01) G01R 31/319 (2006.01)
Patent
CA 1167105
ABSTRACT A battery operated microcomputer controlled programmable circuit testing device. Standard I/O/memory devices are connected to a microcompu- ter in such a manner as to treat the I/O ports of the I/O memory devices as programmable interfaces and to allow pin receptors in a socket to be indi- vidually programmed as inputs or outputs. Double detent switches connected to testable inputs the microcomputer are used to scroll a roll table contain- ing names of devices which may be tested in either a forward or a reverse direction at two different speeds. Compression of the roll table storage is provided by storing only data which differs from the previous element. A power supply having a regulator featuring a series pass transistor connected as a common collector amplifier is shown. The power supply is turned on and off by switching devices which control base current only to a transistor switch operating analog circuitry which controls the pass tramsistor. Micro- computer control of the power supply and self latching embodiments are also shown. The power supply shown herein can successfully regulate output vol- tages which differ from the raw DC input by no more than the saturation voltages of series pass transistor.
362572
Lockheed Corporation
Smart & Biggar
LandOfFree
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