SU1403376A1 - Optronic d-a converter - Google Patents

Abstract

The invention relates to computing and can be used in devices of digital computers and in control systems of devices under high voltage. The purpose of the invention is to increase speed and accuracy. The device contains an input register 1, a block of 2 keys, a light source 3, a block 4 for dividing the luminous flux, a block 5 for summing the light fluxes, a converter 6 for the intensity of light radiation into an electrical signal, n optical modulators 7, a source 8 for reference voltage, an input bus 9 and output bus 10. Improving the speed of the device is achieved by controlling the optical modulators with a constant amplitude signal that does not have a rise time. The accuracy of the conversion is enhanced by organizing the division and summation of the light fluxes in high-precision fibers. 1 il. I O)

Description

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The invention relates to computing and can be used in output devices of digital computers.

The purpose of the invention is to increase the speed and accuracy of the conversion.

The drawing shows the functional diagram of the device.

The device contains an input register 1, a block of 2 keys, a source of light 3, a block 4 for dividing the luminous flux, a block 5 for summing light fluxes a converter of 6 light intensity into an electrical signal, n optical modulators 7, a source 8 of reference voltage, an input bus 9 and output bus 10.

The device works as follows.

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Register 1 through bus 9 is entered into the input code in sequential mode. or parallel recording. The code is stored for a predetermined period of time until the arrival of the register triggering signal at 0. Depending on the state of the register triggers, the keys of the block 2 are switched, closing the light modulators 7 to the bus of the reference voltage source 8. The light fluxes from the light source 3 are transmitted through blocks 4 and 5 to the transducer 6, from whose output the analog signal is removed via the bus Yu.

Blocks 4 and 5 are made identically on fibers assembled in n beams according to the number of transducer bits, and the number of fibers in the beams is binary-distributed, with the number of fibers in the lower bit being determined by the minimum value of the luminous flux providing

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steady detection of the signal against the background of converter 6 noise;

Claims (1)

Invention Formula An optoelectronic digital-to-analog converter containing an input register, a key block and an optically sequential connected light source, a light flux dividing unit, n optical modulators (where n is the number of transducer bits), a light flux summation unit, and a light intensity to electric signal converter that controls Optical modulator inputs are connected to the corresponding outputs of the key block, the control inputs of which are connected to the corresponding outputs of the input register The inputs of which are the input bus of the converter j characterized in that, in order to increase the speed of accuracy, a reference voltage source is inserted into it, the code of which is connected to the information input of the key block, the light flux division unit and the light flux summation block are each On n beams of identical light guides, the number of which in the beams is distributed according to binary law, the input of the dividing unit of the luminous flux and the output of the unit of the summation of the luminous fluxes are formed by conjugated ends of the n beams of st tovodov, and each of n outputs light flux dividing unit and each of the n inputs of summing block light fluxes formed by mating faces of the respective fibers of the beam, the output transducer light intensity into an electrical signal is an output line of the converter.