Emitter follower circuit having no temperature dependency

Details Emitter follower circuit having no temperature dependency Emitter follower circuit having no temperature dependency

1998-09-04

2000-09-12

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Temperature

327 83, 327562, H01L 3500, H01L 3700, H03K 342, H03K 1778

Patent

active

06118327&

ABSTRACT:
In an emitter follower circuit, a bipolar transistor is connected to a resistor element. The bipolar transistor has a temperature dependent characteristic. A current source circuit is connected to the resistor element to flow a current through the resistor element such that a voltage drop by the resistor element has an opposite temperature dependent characteristic to the first temperature dependent characteristic of the bipolar transistor.

REFERENCES:
patent: 4672237 (1987-06-01), Kiyozuka
patent: 4853646 (1989-08-01), Johnson et al.
patent: 5029295 (1991-07-01), Bennett et al.
patent: 5831486 (1998-11-01), Wehbi
patent: 5856755 (1999-01-01), Falconer et al.

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