Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Reexamination Certificate
2005-03-15
2005-03-15
Nuton, My-Trang (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
C327S478000
Reexamination Certificate
active
06867636
ABSTRACT:
A circuit arrangement for a resistor of high linearity that can be produced in integrated technology and be controlled by the current (Io1, Io2), which circuit arrangement is constructed from two pairs of transistors comprising transistors (T1. . . T4) of the same junction type connected as diodes. Each pair of transistors (T1, T2and T3, T4) has a common point of connection (D, E) that connects together the anodes of one pair of diodes and the cathodes of the other pair. The point of connection (D) of the first pair of transistors (T1, T2) is situated on their collector lines and thus connects the anodes and forms the infeed point for a first control current source (Io1). The point of connection (E) of the second pair of transistors connects the cathodes and is thus situated on their emitter lines and forms the infeed point for a second control current source (Io2). The emitter line of the first transistor (T1) in the first pair of transistors (T1, T2) is connected to the collector line of the first transistor (T3) in the second pair, this point of connection (B) also forming one terminal (A′) of the resistor. The emitter line of the second transistor (T2) in the first pair is connected to the collector line of the second transistor (T4) in the second pair, this point of connection (C) being connected to the second terminal (A″) of the resistor. The current-controlled resistor according to the invention has high linearity and is easy to produce in terms of circuitry.
REFERENCES:
patent: 3983512 (1976-09-01), Lipscombe
patent: 4659945 (1987-04-01), Metz
patent: 4682098 (1987-07-01), Seevinck et al.
patent: 4885545 (1989-12-01), Sanielevici
patent: 5029129 (1991-07-01), Wai Wong
patent: 5745003 (1998-04-01), Wakimoto et al.
patent: 6211723 (2001-04-01), Creek
patent: 6424201 (2002-07-01), Yamamoto et al.
Koninklijke Philips Electronics , N.V.
Nuton My-Trang
Ure Michael
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