Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-08-21
2007-08-21
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S539000, C327S540000, C327S541000, C327S542000, C327S543000, C323S311000, C323S312000, C323S313000, C323S314000, C323S315000, C323S316000, C323S317000
Reexamination Certificate
active
11187680
ABSTRACT:
An auto voltage sense circuit uses voltage controlled current sources to generate a desired reference voltage level that closely tracks the variations and changes of a first voltage level and a second voltage level. The auto voltage sensing circuit includes a first voltage controlled current source operable to receive the first voltage level to generate a reference current that is proportional to the first voltage level. The auto voltage sensing circuit also includes a second voltage controlled current source operable to receive the second voltage level and the reference voltage to generate an output current that is proportional to the difference between the second voltage level and the reference voltage. The reference voltage causes the output current to be approximately equal to the reference current so as to generate a reference voltage that is proportional to the difference between the second voltage level and the first voltage level.
REFERENCES:
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Baker William G.
Gillespie Timothy
Glass Kenneth
Glass & Associates
Integrated Device Technology Inc.
Lam Tuan T.
Nguyen Hiep
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