Continuous switched-capacitor dual slope watthour meter circuit

Details Continuous switched-capacitor dual slope watthour meter circuit Continuous switched-capacitor dual slope watthour meter circuit

1987-02-04

1988-12-27

Smith, Jerry

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

G01R 21133

Patent

active

047943335

ABSTRACT:
Transient offset error voltages due to charge injection by MOS analog switches in switched-capacitor integrators of electronic metering circuits are compensated by use of a continuous switched input capacitor network on the inverting input of the integrator amplifier. Any residual charge injection not cancelled by the switched capacitor network is compensated by employing another switched capacitor network on the non-inverting input of the amplifier and by matching the geometries of the switches in the two networks so that the charge injected into each input of the amplifier is the same.

REFERENCES:
patent: 3955138 (1976-05-01), Milkovic
patent: 4066960 (1978-01-01), Milkovic
patent: 4217546 (1980-08-01), Milkovic
patent: 4439693 (1984-03-01), Lucas et al.
patent: 4485343 (1984-11-01), Milkovic
patent: 4495463 (1985-01-01), Milkovic
patent: 4535287 (1985-08-01), Milkovic
patent: 4543534 (1985-09-01), Temes et al.
patent: 4636738 (1987-01-01), Westwick et al.
patent: 4682102 (1987-07-01), Milkovic
Millman et al., Microelectronics, 2nd. ed.
Martin, "New Clock Feedthrough Cancellation Technique . . . ", Electronics Letters, vol. 18, No. 1, Jan. 1982, pp. 39-40.

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