Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1990-05-09
1991-06-25
Hudspeth, David
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307455, 307482, H03K 1901
Patent
active
050270133
ABSTRACT:
A method and apparatus for providing ECL output signals to a capacitative load includes differential amplification of input signals with a first output of a differential amplifier connected for establishing a voltage level between voltage limits V.sub.cc and V.sub.ee at the output of an output driver in response to variations in the first amplifier output. A pull-down transistor has a collector connected to the output driver output, an emitter connected to the V.sub.ee voltage source, and a base coupled through a boost capacitor to the second amplifier output. A voltage clamp embracing a clamp transistor with a base connected to receive a predetermined control voltage has an emitter connected to the boost capacitor and the pull-down transistor base and a collector connected to the V.sub.cc voltage source. The clamp transistor is operated in Darlington configuration to provide a minimum discharge impedence to the base of the pull-down transistor. A recovery capacitor is connected between the clamp transistor base and the first duplifier output to speed up the clamp transistor's operation.
REFERENCES:
patent: 3262065 (1966-07-01), Frederickson
patent: 3968383 (1976-07-01), Smith
patent: 4539493 (1985-09-01), Varadarajan
patent: 4626709 (1986-12-01), Mazumder et al.
patent: 4649294 (1987-03-01), McLaughlin
patent: 4687953 (1987-08-01), Varadarajan
patent: 4694203 (1987-09-01), Uragami et al.
patent: 4724343 (1988-02-01), Le Roux et al.
European Search Report dated 27 Mar. 1990, Reference BEC/2001-PF-01, Application No. 88310782.3 (3 pages).
Coy Bruce H.
Rosky David S.
Applied Micro Circuits Corporation
Hudspeth David
LandOfFree
Method and apparatus for coupling an ECL output signal using a c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for coupling an ECL output signal using a c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coupling an ECL output signal using a c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1042298