Adjustable current source

Details Adjustable current source Adjustable current source

1981-04-30

1983-03-29

Shoop, William M.

Electricity: power supply or regulation systems

External or operator controlled

Using a transformer or inductor as the final control device

323301, H02J 312

Patent

active

043785220

ABSTRACT:
An adjustable current source comprises a choke (1) and a capacitor (2) whose reactive impedances are equal at the frequency of a variable voltage source (3), as well as a load current matching and adjusting unit made as a magnetic amplifier (4). Some outputs of the choke (1), the capacitor (2) and a primary winding (6, 7) of the magnetic amplifier (4) are coupled to respective phases of the variable voltage source (3). Other outputs of the choke (1), the capacitor (2) and the primary winding (6,7) of the magnetic amplifier (4) are joined in a star connection. The secondary winding (9, 10) of the magnetic amplifier (4) is coupled to the load (11). The control winding (13) of the magnetic amplifier (4) is coupled to a constant voltage source (14).

REFERENCES:
patent: 2767371 (1956-10-01), Beaubien
patent: 3184675 (1965-05-01), Macklem
patent: 3188552 (1965-06-01), Owen
patent: 3466531 (1969-09-01), Chin

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