Constant-current circuit

Details Constant-current circuit Constant-current circuit

1976-05-18

1977-04-26

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307304, 323 4, 323 22R, H02J 104, G05F 152, H03K 112

Patent

active

040203670

ABSTRACT:
A constant-current circuit comprising a first enhancement type FET, a depletion type FET having its drain and source connected to the drain and gate of the first enhancement type FET respectively, a second enhancement type FET having its drain and source connected to the gate and source of the first enhancement type FET and a series connection of two impedance elements having its ends connected to the source of the depletion type FET and to the source of the second enhancement type FET, the juncture between the two impedance elements being connected to the gate of the second enhancement type FET, whereby the constant-current characteristics of such constant-current circuits are checked from being dispersed.

REFERENCES:
patent: 3806742 (1974-04-01), Powell
patent: 3813595 (1974-05-01), Sheng
patent: 3875430 (1975-04-01), Prak
Hoffman, "Constant-Current Source for Mosfet Circuits;" IBM Tech. Discl. Bull.; vol. 17, No. 8, p. 2391; 1/1975.

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