Current-pulse integrating

Details Current-pulse integrating Current-pulse integrating

G - Physics

06

G

354/153, 331/32

G06G 7/184 (2006.01) G06G 7/186 (2006.01) H03L 7/089 (2006.01)

Patent

CA 2034127

Circuitry and method for integrating current pulses, the circuitry including an integration amplifier having an integration capacitor located in its feedback loop. The current pulse integrator also includes three current sources and four current switches. A first current switch is located between a first current source and a second current source. A second current switch is located between the output of the integration amplifier and the second current source. A third current switch has one end connected to the first current source and the input to the integration amplifier, and the other end connected to the third current source. A fourth current switch is connected between the output of the integration amplifier and the third current source. Current passes through the integration capacitor in a first direction to charge the integration capacitor during a charge state of operation of the current pulse integrator. Current is prevented from passing through the integration capacitor in the first direction during at least one other state of operation of the current pulse integrator. An output current from the integration amplifier during the charge state of operation is substantially equal to an output current from the integration amplifier during the other state or states of operation.

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