Switchable bipolar current source

Details Switchable bipolar current source Switchable bipolar current source

1986-09-29

1988-04-26

Salce, Patrick R.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323317, 307496, 307500, G05F 320

Patent

active

047407433

ABSTRACT:
A bipolar current source includes a supply voltage source, a first current reflector connected to the supply voltage source and having transistors of one conduction type including input and output transistor configurations, and a second current reflector connected in series with the first current reflector, connected to the supply voltage source and having transistors of the other conduction type including input and output transistor configurations, the output transistor configurations being able to be switched off.

REFERENCES:
patent: 3611171 (1971-10-01), Black
patent: 3976896 (1976-08-01), Ryder
patent: 4536662 (1985-08-01), Fujii
patent: 4544878 (1985-10-01), Beale et al.
patent: 4583037 (1986-04-01), Sooch
Hellwarth et al., "Precision Voltage Source with High-Speed Polarity Control", IBM Technical Disclosure, Oct. 1972, pp. 1590-1591.
Patents Abstract of Japan, vol. 8, No. 33, 14. Feb. 1984, p. P-254, 1470; & JP-A-58, 186817 (Nippon Denso), Oct. 31, 1983.
RCA Review, vol. 39, No. 2, Jun. 1978, pp. 250-258, Princeton, U.S., O. H. Schade: "Advances in BIMOS Integrated Circuits".
Electronics Letters, vol. 12, No. 15, Jul. 22, 1976, pp. 389, 390, Herts, GB; B. L. Hart et al., "DC Matching Errors in the Wilson Current Source".

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