Transformer power supply having an inductively loaded full wave

Details Transformer power supply having an inductively loaded full wave Transformer power supply having an inductively loaded full wave

1979-11-08

1982-02-02

Shoop, William M.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 39, 363129, 323237, 315283, H02P 1324

Patent

active

043143245

ABSTRACT:
In a transformer power supply, a full wave rectifier is series connected in circuit with the primary winding of the transformer such that the current flowing through the primary winding of the transformer flows in series through the input of the full wave rectifier. An inductive load is connected across the output terminals of the full wave rectifier such that the rectified output current flows through the inductive load. The full wave rectifier preferably uses silicon controlled rectifiers which are phase triggered in such a manner so as to control their conduction angles so as to control the power flow from the source to the load connected to the secondary of the transformer. The inductance of the load for the rectifier preferably exceeds the critical inductance so as to minimize ripples in the secondary of the transformer. This type of power supply circuit is particularly useful for supplying power to an electron gun which is subject to arcing. The inductive load for the rectifier reduces the transient voltages impressed on the transformer resulting from SCR phase control and also minimizes AC voltage drop across the inductive load while providing transient current limiting as may be encountered by arcing of the electron gun.

REFERENCES:
patent: 3845380 (1974-10-01), Lepp et al.
patent: 3877896 (1975-04-01), Muskovac
patent: 3976931 (1976-08-01), Sterling
patent: 4030017 (1977-06-01), Brown
patent: 4176310 (1979-11-01), Elenga et al.

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