Electronic digital logic circuitry – Function of and – or – nand – nor – or not – Bipolar transistor
Patent
1995-12-15
1996-11-05
Westin, Edward P.
Electronic digital logic circuitry
Function of and, or, nand, nor, or not
Bipolar transistor
326 18, 326 75, H03K 1920
Patent
active
055721524
ABSTRACT:
A first current switch circuit 1a outputs a first logic signal and a complementary signal thereof in response to an input logic signal. A pull-up transistor Q10 has a base receiving the first logic signal. A second current switch circuit 1b outputs a second logic signal based on the complementary signal and the potential of an output terminal OUT1. A level shift circuit 1c shifts the level of the second logic signal and provides it to the base of a pull-down transistor Q11. When the potential of an input terminal IN1 changes from a low level to a high level, a capacitive load CL is discharged through transistors Q9 and Q11. When the potential of output terminal OUT1 becomes lower than that of a first reference potential terminal VBB1, the second logic signal attains a low level, thereby turning off pull-down transistor Q11.
REFERENCES:
patent: 4628216 (1986-12-01), Mazumder
patent: 4700087 (1987-10-01), Stroberger
patent: 4877977 (1989-10-01), Kokado
patent: 4970417 (1990-11-01), Kubota
patent: 5287019 (1994-02-01), Nonaka
"High-Speed Dugutak Circuits", Kai-Yap TOH et al., 1989 IEEE International Solid-State Circuits Conference, pp. 224-225.
Mitsubishi Denki & Kabushiki Kaisha
Sanders Andrew
Westin Edward P.
LandOfFree
Logic circuit with the function of controlling discharge current does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logic circuit with the function of controlling discharge current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logic circuit with the function of controlling discharge current will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2017364