Title :
A programmable power metering chip
Author :
Lin, Y.M. ; Davies, E.L. ; Blasco, R.W. ; Chan, D. ; Munday, M.L. ; Hemminger, R.C.
Author_Institution :
Silicon Systems, Inc., Nevada City, CA, USA
Abstract :
A programmable power metering chip that measures watt-hours, VAR-hours, and VA-hours is described. New techniques are employed to multiplex analog and digital hardware and achieve significant power and die size efficiences. The chip consists of three time-multiplexed Σ-Δ A/D (analog-to-digital) converters and an 8-bit programmable DSP (digital signal processor). It is fabricated in 1.5-μm CMOS technology with a 5.0 mm×5.5 mm die and consumes less than 75 mW with single 5-V supply
Keywords :
sigma-delta modulation; 1.5 micron; 5 V; 75 mW; 8 bit; ADC; CMOS technology; VA-hours; VAR-hours; auto-zeroing switched capacitor integrator; low power consumption; mixed-signal IC; programmable DSP; programmable power metering chip; time-multiplexed sigma-delta convertors; watt-hours; CMOS technology; Clocks; Crosstalk; Digital signal processing chips; Power harmonic filters; Power system harmonics; Sampling methods; Silicon; Switches; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1993., Proceedings of the IEEE 1993
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0826-3
DOI :
10.1109/CICC.1993.590775
