Title :
Delta--sigma wattmeter
Author :
Dempster, I.A. ; Steele, R.
Author_Institution :
Loughborough University of Technology, Electronic & Electrical Engineering Department, Loughborough, UK
Abstract :
A wattmeter is described in which the load voltage is binary encoded by a delta--sigma modulator, and is subsequently used to sample the load current. By simple filtering of the resultant signal, the instantaneous or mean power in the load is obtained.
Keywords :
delta modulation; electric sensing devices; wattmeters; FET; delta modulation; delta sigma wattmeter; flip flop; integrated circuit comparator; junction switching; modulator;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710351
