Load current interference reducing apparatus

Details Load current interference reducing apparatus Load current interference reducing apparatus

1987-04-07

1988-04-05

Salce, Patrick R.

Electricity: power supply or regulation systems

In shunt with source or load

Using impedance

323226, 323269, 323293, G05F 1614

Patent

active

047361522

ABSTRACT:
A circuit arrangement for reducing an interference current produced by a load (2). The frequency of the interference current is considerably higher than the frequency of a supply voltage source (1) which is coupled to the load. In order to reduce the interference current, a compensation circuit is provided comprising at least one connection branch connected in the leads between the load and the supply voltage source and having each time a series-combination of a capacitor and a controlled signal source. Each signal source supplies a current dependent upon a control signal. The control signals are derived from the current flowing in a lead to the connection branch or away from it. The magnitude and the phase of the currents supplied by the signal sources are proportioned so that the interference current flows for the major part through the connection branch.

REFERENCES:
patent: 3414824 (1968-12-01), Weidmann et al.
patent: 4016481 (1977-04-01), Bradley

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