Control system for adjusting a physical quantity

Details Control system for adjusting a physical quantity Control system for adjusting a physical quantity

1981-06-15

1984-05-22

Gruber, Felix D.

Boots, shoes, and leggings

331 1A, 334 15, 340347DA, 364182, 455182, 455184, G05B 1502, H03J 502, H03B 304

Patent

active

044505183

ABSTRACT:
A control system for adjusting a physical value, e.g. the resonance frequency of an oscillator comprising a bank of keys to provide the physical value as a digital word A, a microprocessor to convert the word A to a digital word B, a D/A converter to convert the word B to a voltage to control an electronic adjusting component of the oscillator, e.g. a varactor diode, and a measuring device to measure the output of the oscillator and provide a digital word C for coupling to the microprocessor. The microprocessor compares the word B with the word C and provides a correcting digital word .DELTA.B which is added to the word B for application to the oscillator through the D/A converter. This process is continued until the word B is equal to the word C.

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Winkelstein: Minicomputer-Controlled Programmed Oscillator, TPL Quarterly Technical Review, vol. No. 3, Oct. 1971.

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