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Dynamic Ring Counter

IP.com Disclosure Number: IPCOM000096385D
Original Publication Date: 1963-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Bornhauser, H: AUTHOR

Abstract

The ring counter is a decimal counter with ten positions. The ring is controlled by a bistable multivibrator which supplies the A and 13 timing pulses.

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Dynamic Ring Counter

The ring counter is a decimal counter with ten positions.

The ring is controlled by a bistable multivibrator which supplies the A and 13 timing pulses.

When the counter is in its nonoperative condition, all stages except stage 0 are in a conductive state. Stage 0 is kept in a nonconductive state by a positive control potential applied to the start terminal. After removing this positive potential, which is synchronous with the B pulse, the counter starts operating.

Via diode D1 and capacitor C1, transistor T1 is now cut off by an A pulse. During A time, capacitor C2 charges itself inversely and during the following B time cuts off transistor T2 via diode D2 by a B pulse. These operations take place successively in all stages 0 ... 9.

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