SU586563A1 - Voltage amplitude-to-period converter - Google Patents

Description

one

The invention relates to radio engineering and can be used in automation and measurement technology.

A voltage-to-voltage amplitude converter is known, comprising an amplifier with a linear-step amplitude response with N taps and a mixer 1.

However, in this converter, the pulse durations resulting from the amplitude conversion by the gain steps are sequentially added together with the conversion time increasing.

The aim of the invention is to increase the speed of the converter.

For this purpose, N amplitude-time transducers, N pulse-decoupling amplifiers, pulse-edge selector and interval trigger, are introduced into the voltage amplitude-to-voltage transducer with a voltage amplifier containing a linear-step amplitude amplifier and a mixer. the linear-step amplitude characteristic is connected to the corresponding input of the mixer through successively connected amplitude-time converter and pulse decoupler, output cm The sensor is connected to the first input of the interval trigger, the second input of which is connected to the output of the last amplitude-time converter through the edge selector.

The drawing shows the scheme of the proposed Converter.

The voltage-to-voltage amplitude converter contains an amplifier 1 with a linear-step characteristic with L taps, amplitude-time converters N selectors; V decay,

the front selector 4, the mixer 5, the interval trigger 6, the outputs 7 and 8 and the input 9, the input 9 being the input of the amplifier 1, each of the outputs of which is connected to the corresponding input of the mixer 5 through the respective series-connected converters / V and the selectors 3 1- 3-N with the output of the Converter 2 L is connected through the selector 4 to the first input of the trigger 6, the second input of which is connected to

the output of the mixer and output 7, the output of the trigger 6 is connected to the output 8.

The Converter operates as follows.

Input 9 receives a pulse with amplitude,

corresponding, for example, to the working section of the dynamic range of the first stage of the amplifier 1. When this is done, the remaining stages operate outside the linear section of the amplitude characteristics in the overload mode.

The last stage of amplifier 1, which is the first to enter into the core, is the most overloaded, since for it the gain factor is maximum.

The amplified pulses are fed to the transducer inputs. In each of the N converters, the start of the amplitude-to-duration conversion corresponds to the moment of arrival of the pulse at its input, and, therefore, the duration of the converted pulses is excluded from the conversion result. The conversion time for each of the converters N ends at a different time, since the maximum amplitude level at their inputs is different.

From the output of the 2 N converter, a pulse arrives at the input of the selector 4 of the front, from the output of which a pulse arrives at the trigger start input 6. From the outputs of the 7V converters, the pulses go to the inputs of the selectors 3 drops, the number of pulses from the outputs of which are added by the mixer 5. arrive simultaneously at the output 7 "roughly and at the input of the trigger stop 6. The trigger 6 stops with a pulse drop from the first stage of amplifier 1, which does not go beyond the working part of the dynamic range and carries information about b the level of the signal at the input 9. From the output of the trigger 6 pulse arrives

to output 8. By the number of pulses at output 7 (counting “roughly”) and by the magnitude of the pulse duration at output 8, one can determine with high accuracy the signal level at the input of the converter.

Claims (1)

1. USSR author's certificate No. 464073, cl. N OZK 11/00, 1974. R -one