Electric lamp and discharge devices: systems – Current and/or voltage regulation – Plural regulators
Reexamination Certificate
2009-04-15
2011-10-18
Tran, Thuy Vinh (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Plural regulators
C327S074000, C327S077000, C315S308000
Reexamination Certificate
active
08040079
ABSTRACT:
A peak detection/digitization circuit includes a plurality of level detect units, each having a comparator and a flip-flop with a clock input responsive to the output of the comparator. For a detection period, each level detect unit configures a data output signal of the flip-flop to a first data state responsive to a start of the detection period. Further, each level detect unit is configured to enable the comparator responsive to the data output signal having the first data state or a second data state, respectively. While the comparator is enabled during the detection period, the level detect unit configures the data output signal of the flip-flop responsive to a comparison of an input signal to a corresponding reference voltage level by the comparator. The data output signals of the flip-flops of the level detect units at the end of the detection period are used to determine a digital value representative of a peak voltage level of the input signal.
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Freescale Semiconductor Inc.
Tran Thuy Vinh
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