Power supply circuit for a data processor

Details Power supply circuit for a data processor Power supply circuit for a data processor

G - Physics

06

F

354/221

G06F 1/00 (2006.01)

Patent

CA 1135420

Abstract: The present invention relates to a power supply circuit for a data processor to which a data input circuit is connected. Operation of the data input circuit provides an input to the data processor. The power supply circuit includes a power up circuit that is latched on, responsive to the operation of the data input circuit. When latched on the power supply supplies power from a power source to the processor. The power up circuit is comprised of a single pair of complementary transistors arranged so that an output electrode of each transistor is connected to an input electrode of the other transistor. A first of the transistors has its third electrode adapted to be connected to the power source. The second transistor has its third electrode connected to the power input of the data processor. The operation of the data input circuit completes a path from the input electrode of the first transistor to a point that is essentially at a common reference potential to latch the power up circuit on.

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