SU1129731A1 - Voltage-to-number converter - Google Patents

Abstract

1. A VOLTAGE CONVERTER TO A CODE containing a voltage-to-time converter, the input of which is connected to the input bus, the output to the inputs of the delay unit and the reset pulse shaper, discharge blocks of quantrons made on the photodiode and quantrons connected optically in series with the optical the input of the photodiode, the decoupling diodes, the anodes of which are connected to the output of the reset pulse shaper, characterized in that, in order to increase the conversion accuracy, resistors, optoelectronic photons are inserted the pulse generator, whose optical input bus is connected to the optical output of the delay unit, optical output bus to the optical input of the first quantron of the first discharge unit of quantrons, the output bus to the first inputs of all quantrons and the cathode of the photodiode of the first discharge block of quantrons, and the cathode of the photodiode of each the subsequent discharge unit of the quantrons is connected to the anode of the photodiode of each previous discharge unit of the quantum entrances, the second and first inputs of the quantrons, respectively, of the previous one and the subsequent The discharge discharge blocks of the quantrons, the cathode of the corresponding decoupling diode and through the corresponding resistor with a common bus, the optical output of the last quantron of each previous discharge block of quantrons connected to the optical input of the first quantron of each discharge block of quantrons. §2. The converter according to claim 1, characterized in that the optoelectronic pulse shaper is made on a LED, a transistor, a resistor, two photodetectors, the first terminals of which are connected to the base of the transistor, the collector of which is connected via a LED to the power bus and to the second output of the first photodetector and the emitter is connected to the output of the QD by a bus directly and through a resistor with a common bus, while the second output of the second photodetector is connected to the common bus, the optical input to the optical output of the LED and the output optical bus hydrochloric optoelectronic pulse shaper, the input optical bus which is connected to the optical input of the first photodetector. 3. The converter according to claim 1, which is different in that each quantron is made on a light-emitting diode resistor, transistor, two photodetectors, the first outputs of which

Description

connected through a common bus resistor and directly to the base of the transistor, the emitter of which is connected to the second input of the quantron, and the collector is connected via a LED to the power bus and to the second output of the first photodetector, optical

the input of which is connected to the optical output of the LED and the optical output of the quantron, while the second output and the optical input of the second photodetector are connected respectively to the first and optical inputs of the quantron,

The invention relates to computing and can be used to construct analog-to-digital converters. The converter is known, for example, in a code containing a voltage-to-time converter, the output of which is connected to the inputs of the delay unit and the reset pulse shaper, the discharge blocks of quantrons, in each of which the optical output of each previous quantron is connected to the optical input of each subsequent quantum , the first optical input of the optoelectronic element OR is connected to the optical output of the reset pulse generator, the second optical input is connected to the optical output of the optoelectronic element I, and the optical output from the optical entrances of the quantrons, the optical control inputs of which are connected to the first optical input of the optoelectronic element I, the second optical input of which is connected to the optical output of the last quantron, and the optical output to the first optical input of the optoelectronic element And the subsequent the bottom of the block of quantrons; the first optical input of the optoelectronic element I of the first bit of the block of quantrons is connected to the optical output of the delay 1 unit. The receiver is a low conversion accuracy. The closest in technical essence to the present invention is a voltage converter into a code containing discharge blocks of quantrons, containing light emitters, photo cells, control photo cells, quantrons, diodes, pulse drivers, development diodes, delay block and reset pulse shaper, voltage converter in the time interval, the input of which is connected to the input bus, and the output to the inputs of the reset pulse shaper and the delay blocks, the output of which is connected to. the light emitter input of the first bit unit of the quantrons, and the output of the reset pulse generator and decoupling diodes are connected to the reset inputs of the quantrons, the first optical output of the light emitter of each discharge unit of the quantrons is optically connected to the optical input of the first quantron, and the second optical output of the light emitter is connected to an optical connector. photocell, the optical output of each previous quantron is optically connected to the optical output of each subsequent quantron, and the optical output is The last quantron is optically connected to the optical input of the photocell, the output of which is connected to the input of the pulse former, the output of which through the first diode is connected to the reset inputs of quantrons, and through the second diode to the input of the light emitter of the subsequent discharge unit of quantrons, and the modulating output of the control photoelectric element of each discharge the block of quantrons is connected to all the modulating inputs of the quantrons and the photo element of this bit block of quantrons, and each quantron is filled on the LED, photodiode, and anzistore, wherein the transistor base connected to the cathode of the diode and the photodiode, the collector - p. LED anode, emitter - with a common bus, and

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The optical output of the LED is optically connected to the input of the photodiode.

A disadvantage of the known converter is the low conversion accuracy due to the spread of the parameters of quantrons.

The purpose of the invention is to improve the accuracy of the conversion.

The goal is achieved by the fact that a voltage converter into a code containing a converter. voltage in the time interval, the input of which is connected to the input bus, and the output is connected to the inputs of the delay unit and the reset pulse shaper, discharge blocks of quantrons made on the photodiode and quantrons connected optically in series with the optical input of the photodiode, which dissociate the diodes, the anodes of which connected to the output of the pulse driver, reset; resistors are introduced, an optoelectronic pulse driver, whose optical input bus is connected to the optical output of the delay unit, optical output bus a - with the optical input of the first quantron of the first discharge unit of the quantrons, the output bus with the first inputs of all the quantrons and the cathode of the photodiode of the first discharge unit of the quantrons, and the cathode of the photodiode of each subsequent oazrd block of quantrons connected with the anode of the photodiode of each previous discharge unit quantrons, the second and first inputs of the quantrons of the previous and subsequent discharge blocks of the quantrons, respectively, the cathode of the corresponding decoupling diode and through the corresponding resistor with a common bus Rich optical output of the last quantrons each predschuschego quantrons discharge unit connected to the optical input of the first of each successive quanta .trona discharge unit quantrons.

An optoelectronic pulse shaper is made on a LED, a transistor, a resistor, two photodetectors, the first terminals of which are connected to the base of the transistor, whose collector is connected via a LED to the power bus and to the second one of the first photodetector, and the emitter with the output bus and directly through the resistor with a common

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bus, while the second output of the second photodetector is connected to a common bus. The optical input is with the optical output of the LED and the output optical bus of the optoelectric pulse former, the input optical bus of which is connected to the optical input of the first photodetector. Each quantron is implemented on a light, a resistor, a transistor, two photodetectors, the first terminals of which are connected via a common bus resistor and directly to the base of the transistor, the emitter of which is connected to the second input of the quantron, and the collector is connected via an LED to the power bus and to the second end of the first a photodetector, the optical input of which is connected to the optical output of the LED and the optical output of the quantron, while the second output and the optical input of the second photodetector are connected respectively to the first and optical These inputs are quantron.

Figure 1 shows the block diagram of the converter in Figure 2, the block diagram of an optoelectric pulse generator; Fig. 3 structural diagram of the quantron.

Voltage converter to code containing voltage converter 1 to time interval, output 2 of which is connected to the input

5 3 blocks 4 delays and from the input 5 of the former 6 of the reset pulse, the output 7 of which is connected via resetting diodes 8 to the reset inputs 9 and inputs 10, output 11

Block 0 is optically coupled to the input 12 of the optoelectronic driver 13 pulses, the output 14 of which is connected to the inputs 10 and the cathode 15 of the photodiode 16, and the optical output 17

5 is connected to the optical input 18, the optical outputs 19 of the quantum dots 20 are connected to the optical inputs 18 of the subsequent quantum dots 20. The optical output 19 of the last quantron

0 20 is connected to the optical input 21 of the photodiode 16, the anode 22 through a resistor 23 is connected to the common bus 24, the quantron and the photodiode 16 form discharge blocks of quantrons. Opto-5 electronic pulse shaper 13 contains two photodetectors 25 and 26 connected to the base 27 of the transistor 28, the collector 29 of which

jporo via LED 30 is connected to: C power supply bus 31, and the emitter 32, which is output 14 of the driver 13, is connected through a resistor 33 to a common bus 24, Quitron 20 contains a resistor 34, photodetectors 35 and 36, transistor 37, LED 38. The converter for example This code works as follows.

When a signal arrives at converter 1, its output 2 generates a signal at the input 3 of block 4 and at input 5 of the driver 6 ;, from output 7 of which a positive polarity pulse through the isolating diodes 8 is fed to the resetting inputs 9 of quantrons 20, all bit blocks of quantrons. With this, the latter are zeroed by reverse bias of the base-emitter transistors 28, since the resetting input 9 of each quantron 20 is directly the emitter of the transistor 37. The reset impulse also goes to the inputs of 10 quantrons 20, but the excitation of the latter does not occur due to the absence of an optical signal at their inputs 18.

During the action of the optical signal from block 4 on the photodetector 25 of the optoelectronic former 13, the transistor 28 opens, the LED 30 operates, and, acting on the photodetector 26, forms a negative feedback that shuts down the transistor 28. When the transistor 28 enters the cut-off mode, the LED 30 goes out, this removes the feedback and the transistor opens again. This generation mode continues as long as an optical input signal acts on the photodetector 25. Since the optical output 17 of the optoelectronic driver 13 is the LED 30, and the output 14,97316

the emitter 32, then simultaneously with the optical pulses at the output 17, electric pulses of a polarity will appear at the 5th output 14. In this case, the quantrons of the first discharge block of the quantrons are sequentially excited. After filling the first digit block of quantrons, the next 10 pulses from output 14 are transmitted through the photodiode 16 open at the input 21 to the inputs 10 of the second block. At the same time, the first Quantron 20 is excited, since its optical input 18

15 effect, signal from output 19

the last quantron of the first bit block. The same transfer pulse zeros the first bit block of quantrons at the inputs 9 of the reset. Photodiode

20 16 of the first discharge unit of the quantrons is closed, prohibiting the further passage of the transfer pulses. Next, the filling starts at the beginning, and the first quantum 20 of the second digit block of quantrons remains in the excited state. Similarly, the filling and subsequent bit blocks of quantrons occur.

Q In the absence of a positive reset pulse on the emitters 32, the latter are closed in current through the resistor 23 of a small resistance to the common bus 24. In this case, the quantrons 20 operate as ordinary quantrons.

The 1515 economical effect as compared with the basic object is that, due to the introduction of an optoelectric pulse generator and the organization of the corresponding connections in the converters, the conversion accuracy is increased and its structure is regular, which allows the entire converter to be performed in an integral design.

Claims (3)

1 .. VOLTAGE CONVERTER TO A CODE containing a voltage converter in a time interval, the input of which is connected to the input bus, the output is with the inputs of the delay unit and the reset pulse generator, the discharge blocks of quantrons made on the photodiode and quantrons connected optically in series with the optical input of the photodiode decoupling diodes, the anodes of which are connected to the output of the reset pulse shaper, characterized in that, in order to increase the conversion accuracy, resistors are introduced, an optoelectronic form These are pulses whose optical input bus is connected to the optical output of the delay unit, the optical output bus to the optical input of the first quantron of the first discharge unit of quantrons, the output bus to the first inputs of all quantrons and the cathode of the photodiode of the first discharge unit of quantrons, and the cathode of the photodiode of each subsequent the quantron discharge block is connected to the anode of the photodiode of each previous quantron discharge block, the second and first quantron inputs respectively quantrons blocks decouples the cathode of the corresponding diode and vayuschego through a corresponding resistor to the common bus, wherein the optical output of the last bit of each previous quantrons quantrons unit connected to the optical input of the first kvantro on each subsequent block quantrons discharge. 2. The converter according to claim 1, characterized in that the optoelectronic pulse shaper is made on an LED, a transistor, a resistor, two photodetectors, the first terminals of which are connected to the base of the transistor, whose collector is connected via the LED to the power bus and to the second output the first photodetector, and the emitter with the output bus directly and through a resistor with a common bus, while the second output of the second photodetector is connected to a common bus, the optical input is with the optical output of the LED and the optical bus output optoele ctron pulse shaper, the input optical bus of which is connected to the optical input of the first photodetector. 3. The Converter according to claim 1, characterized in that each quantron is made on a LED resistor, a transistor, two photo receivers, the first conclusions of which are connected through a resistor to a common bus and directly to the base of the transistor, the emitter of which is connected to the second input of the quantron, and collector - through an LED connected to the power bus and to the second output of the first photodetector, the optical input of which is connected to the optical output of the LED and the optical output of the quantron, while the second output and the optical input of the second photodetector ka are respectively connected to the first pump module and the optical entrances.