Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1974-11-26
1976-03-16
Chatmon, Jr., Saxfield
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307271, 307275, 328132, 328141, H03B 304, H03K 520
Patent
active
039449351
ABSTRACT:
An apparatus for generating a d.c. output signal which is proportional to the frequency of an alternating input signal, includes a pulse generator and a counter arranged to count pulses from the generator for a time which is dependent on the input signal frequency. A digital to analog converter is responsive to the count in the counter and also to the d.c. output signal to provide an intermediate d.c. signal which is compared with a d.c. reference signal. The difference between the intermediate and reference signals is integrated to provide the output signal. The arrangement is such that the d.c. output signal is directly proportional to the input signal frequency.
REFERENCES:
patent: 3461392 (1969-08-01), Hughes et al.
patent: 3663885 (1972-05-01), Stewart
patent: 3693097 (1972-09-01), Band
patent: 3798529 (1974-03-01), Jones
patent: 3820032 (1974-06-01), Schlaeppi
"Computers in Control and Data Processing" by Davis of Process Control and Automation, June 1964, pp. 249-252, part 3, Hybrid Computers, British Publication.
Chatmon, Jr. Saxfield
Joseph Lucas (Industries) Limited
LandOfFree
Apparatus for generating a d.c. signal proportional to an input does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for generating a d.c. signal proportional to an input , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for generating a d.c. signal proportional to an input will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-295660