Apparatus and method for measuring average motor current
作者： Dale J. Skelton
DOI:
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摘要: Apparatus and method (10, 40) for measuring an average motor current in a pulse width modulation driven are provided. A sensor (20) is coupled to the measure winding current. first source (26) generates generally proportional second substantially chopped output voltage also produced subtracted from circuitry (28) receives difference between currents indicative of The by circuit (32, 34) that produces waveform at same duty cycle phase as driving motor.
lens.org 参考文章(11)
Norman E. Born, Edwin E. Kolatorowicz, Inductive load current measuring circuit ,(1977)
W Rippel, Commutating circuit for electrical vehicle ,(1972)
Rhey W. Hedges, Louis W. Parker, Energy economizer for induction motors ,(1978)
Toshiaki Okuyama, Keijiro Sakai, Tsunehiro Endo, Hiroshi Fujii, Method for measuring characteristic constants of alternating current motor and controller thereof based on said method. ,(1993)
Mitchell Budniak, Jeff Kaul, Kerry Berland, Intelligent communication pulse detection system to control electric D.C. Motors used with automobile accessories ,(1994)
Ronald B. Bailey, Chopper with adaptive energy commutation ,(1978)
Yasuo Nanbu, Makoto Yoshida, Driving control apparatus of motor-driven compressor utilized for automobile ,(1993)
Allen A. Bahr, Tony R. Larson, System for accurately measuring current in PWM amplifier driven loads ,(1994)
Mikio Hasegawa, Hiroyuki Inoue, Current detecting method ,(1992)
Louis W. Parker, Energy economizing AC power control system ,(1978)