Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Reexamination Certificate
2007-06-26
2007-06-26
Patel, Rajnikant B. (Department: 2838)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
C324S127000, C361S154000
Reexamination Certificate
active
10990287
ABSTRACT:
A circuit for sensing a current in an inductor is described. Integrator circuitry is operable to generate a first signal representing an integration of a voltage across the inductor. Comparison circuitry is operable to generate a reset signal each time the first signal reaches either a positive or negative threshold. The reset signal is for resetting the integrator circuitry. Logic circuitry is operable to generate a count direction signal indicating which of the positive and negative thresholds was reached to generate the reset signal. Counter circuitry is operable to increment or decrement a count representing the current in the inductor in response to the reset and count direction signals.
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Beyer & Weaver, LLP
Patel Rajnikant B.
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