Voltage-to-frequency converters

Details Voltage-to-frequency converters Voltage-to-frequency converters

1983-01-10

1985-03-26

Grimm, Siegfried H.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

340347NT, 340347AD, 340347CC, H03K 1302

Patent

active

045076243

ABSTRACT:
A monostable circuit of a voltage-to-frequency converter supplies feedback pulses to balance the input signal to a first integrator. These same pulses are supplied to a second integrator where they are compared with reference pulses from a crystal-controlled clock. Any drift in the pulse-width of the feedback pulses is corrected by a control signal applied to the monostable circuit by the second integrator to vary its quasi-stable period appropriately. Thus the precision of the converter is improved without disturbing its asynchronous properties.

REFERENCES:
patent: 3789202 (1974-01-01), Yamanaka

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