Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude
Reexamination Certificate
2006-09-05
2008-05-13
Richards, N. Drew (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By amplitude
C327S089000, C341S122000
Reexamination Certificate
active
07372307
ABSTRACT:
A current monitoring circuit for DC-DC switching converters includes a track and latch comparator circuit (30) having a preamplifier (32) that is controlled independently of a latch circuit (34). The comparator is small and operates very fast and with improved sensitivity. For example, the preamplifier circuit is disabled when the latch stage is making its decision to avoid noise and input disturbances from affecting the latch stage. This selective disabling feature speeds up the signal processing of the comparator and allows it to work in parallel with other circuits. The latch stage can make its decision later, regardless of any further activity at the inputs of the comparator.
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Brady W. James
Englund Terry L.
Richards N. Drew
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
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