Digital circuit for generating ascending or descending ramp-like

Details Digital circuit for generating ascending or descending ramp-like Digital circuit for generating ascending or descending ramp-like

1982-08-30

1985-03-12

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307261, 307227, 328 14, 328186, 377 45, H03K 406, H03K 402, H03K 2110

Patent

active

045047413

ABSTRACT:
Digital apparatus receives digital data and outputs a ramp-like analog waveform. The digital apparatus comprises a reference digital word source, a variable digital word source, a testing circuit, and a D/A converter. The reference word and the variable word are tested for a predetermined relationship and the variable word changes until the predetermined relationship or condition is satisfied. The D/A converter receives the variable word and converts changes in same into either positive or negative slope ramps. The D/A converter output is constant during intervals where the variable word is not changing.

REFERENCES:
patent: 3628061 (1971-12-01), Jackman
patent: 3657657 (1972-04-01), Jefferson
patent: 4276468 (1981-06-01), Nagamoto et al.
patent: 4284979 (1981-08-01), Flanders et al.
patent: 4342007 (1982-07-01), Elliott
patent: 4349789 (1982-09-01), Kurihara

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