Active EMI filter having no inductive current sensing device

Details Active EMI filter having no inductive current sensing device Active EMI filter having no inductive current sensing device

2005-07-19

2005-07-19

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

C363S040000, C363S044000

Reexamination Certificate

active

06920053

ABSTRACT:
An active EMI filter senses current in a ground line as a voltage across a capacitor coupled to the ground line. The EMI filter senses common mode voltage and determines a difference between the common mode voltage and noise to provide an output to the ground line to reduce the difference.

REFERENCES:
patent: 4710861 (1987-12-01), Kanner
patent: 4761725 (1988-08-01), Henze
patent: 4829416 (1989-05-01), Inaba et al.
patent: 5181159 (1993-01-01), Peterson et al.

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