Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1998-02-25
2000-11-21
Cunningham, Terry D.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327314, 327355, G06G 712
Patent
active
061508748
ABSTRACT:
The invention describes a circuit layout for generating a supply DC voltage in a dependent relationship to a non-constant input DC voltage in three voltage intervals, with the supply voltage being maintained at a constant nominal value in the intermediate voltage interval, and with the supply voltage being reduced by constant differential values in the other two voltage intervals in order to allow emergency functions to the maintained; implementation is effected by means of a diode arrangement for the first differential value, by means of a first Zener diode arrangement for maintaining the constant value, and by means of a second Zener diode arrangement for bridging the diode arrangement. In addition, a process will be described for generating an output voltage with superimposed current pulses for a signal generator unit which process will feed in such a supply voltage via a control circuit. The circuit layout according to this invention is particularly suitable for implementing this process.
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U. Tietze et al. : "Halbleiter-Schaltungstechnik [Semi-conductor Circuit Technology]", 10.sup.th edition, 1993, pp. 555-557.
Thomas, IBM Tech. Disc. Bult., "Non-Linear Diode Logical Circuits", Apr. 1996, pp. 27-30.
Fendt Gunter
Muller Norbert
Cunningham Terry D.
Kunitz Norman N.
TEMIC Telefunken microelectronic GmbH
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