Browse Prior Art Database

Low Power Ratioless True Complement Buffer

IP.com Disclosure Number: IPCOM000084860D
Original Publication Date: 1976-Jan-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Gladstein, LA: AUTHOR [+3]

Abstract

The buffer provides the true and complement output signals without the use of DC power. The output signals are provided from separate devices which eliminates ratioing.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Low Power Ratioless True Complement Buffer

The buffer provides the true and complement output signals without the use of DC power. The output signals are provided from separate devices which eliminates ratioing.

At time T1, in the figure, the presence of CL1 charges capacitors C1 and C1A from devices 3 and 3A, respectively, because CL2 is at ground. Devices 2 and 2A are nonconducting due to the down condition of CL1 at the gates of these devices. At time T2, CL1 drops and CL1 is raised.

The potential at nodes B and B1 due to the charge on capacitors C1 and C1A, respectively, are discharged according to the presence or absence of a data signal at device 1. For an uplevel at device 1, the capacitor C1 is discharged to ground through device 1. For a downlevel at device 1, the capacitor C1A is discharged to ground through device 1A.

At time T3, CL2 is raised. An output is provided from the devices 4 and 4A according to the charge status of the capacitors C1 and C1A, respectively. When the capacitor is charged, an uplevel will be provided from the device associated with the capacitor. When the capacitor is discharged, a downlevel will be provided by the device associated with the capacitor.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]