Circuit arrangement for feeding electrical users

Details Circuit arrangement for feeding electrical users Circuit arrangement for feeding electrical users

1985-07-09

1986-12-02

Salce, Patrick R.

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

323266, 323271, 323901, G05F 110

Patent

active

046267662

ABSTRACT:
In a circuit arrangement for feeding electrical users by DC series feed, remotely fed users are respectively preceded by a DC-DC converter which contains a switch controller having a switch element parallel to an input thereof and having a capacitor connected thereto via a diode. In such a circuit arrangement, it is desired that the voltage appearing at the input during the start-up operation should remain below a prescribed amount. For this purpose, the control circuit is designed such that it emits a pulse sequence having a fixed or limited pulse-duty factor during the start-up operation and/or such that at least one part of the load is disconnectable with the assistance of a switch means. The circuit arrangement can be advantageously employed in switch controllers which precede remotely fed users in communications transmission devices with DC series feed.

REFERENCES:
patent: 3160829 (1964-12-01), Mahland
patent: 4245285 (1981-01-01), Weiss

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