Variable transformer with slidable contactor

Details Variable transformer with slidable contactor Variable transformer with slidable contactor

1992-10-15

1994-02-01

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With manual control of the output voltage or current

323340, 336138, 336149, 363126, H02M 706, G05F 114

Patent

active

052837289

ABSTRACT:
A voltage control system has a pair of clockwise and counterclockwise interleaved coils on a portion of a transformer core, the coils having multiple spaced turns providing sets of co-planar alternate electrical contact pairs extending linearly to form a tapping system for varying the output voltage of the transformer. A conductive electrical bridging member is movable in the linear direction of extension of the contacts and bridges a selected pair of contacts, one contact from each coil, to alter the effective number of electrical turns of the two coils between a minimum and maximum output voltage. An adjunctive feature is to provide both a contact lead to the bridging member and appropriate rectification at output ends of the pair of coils in order to produce a direct current output.

REFERENCES:
patent: 920925 (1909-05-01), Darlington
patent: 2273245 (1942-02-01), Ander
patent: 2859398 (1958-11-01), Johnson et al.
patent: 3346804 (1967-10-01), Ryu

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