SU738157A1 - Voltage-to-code converter - Google Patents

Description

(54) VOLTAGE-CODE CONVERTER

one

The invention relates to the field of automation and computer technology and can be used in systems for automatic control of parameters.

A discrete integrator of continuous functions is known, which contains a pulse generator connected to a control unit, keys, a voltage source connected to one of the inputs npeo6pa3OBaTejriH voltage-frequency, the output of which is connected to the first input of the reversible counter 1 via the first key.

However, this device cannot be used to represent random voltages with a predetermined scale of depletion of their envelope.

Also known is a voltage-code converter containing a quantum converter, the output of which is connected via a frequency divider and in parallel through the first, second and third keys respectively to the inputs of the first, second and third binary counters, a trigger, the zero input of which through the first diode and the fourth binary counter connected to the output of the frequency divider, and

the zero and single outputs of the trigger, respectively, are connected to the control drives of the fourth and fifth keys, the ring counter, and the second, third, and fourth diodes 2.

This converter has a higher speed, but does not allow representing random voltages with a predetermined scale for crushing their envelope.

The purpose of the invention is to expand the functionality of the device.

15 The goal is achieved by the fact that the voltage-code converter contains a quantum converter, the output of which is through the frequency divider and in parallel through the first,

20 the second and third keys are connected respectively to the inputs of the first, second and third binary counters, a trigger, the zero input of which is through the first diode and the fourth binary

25 counter connected to the output of the divider

the frequencies, and the zero and single outputs of the trigger, respectively, are connected to the control inputs of the fourth and fifth keys, a ring counter,

30 as well as the second, third and fourth DIODES, additionally comprise three code-voltage converters and a registration device, while the inputs of the first, second and third code-voltage converters are connected respectively to the outputs of the first, second and third binary counters, and the outputs respectively but through the sixth key and the second diode, the seventh key and the third diode, the eighth key and the fourth diode are connected to the inputs of the recorder, the outputs of the fourth and fifth keys are respectively connected to the input of a counter, the first The second, second, and third outputs are respectively, but connected to the first, eighth keys and the second binary counter, to the second, sixth keys and the third binary counter, to the third, seventh keys, and the first counter. The drawing shows the Functional wiring diagram of the device. The output of quantum converter 1 through frequency divider 2. and in parallel through keys 3, 4 and 5 connect respectively to the inputs of binary counters b, 7 and 8, the inputs of converters of code voltage 9, 10 and 11 connect respectively to the outputs of binary counters b, 7 and 8, and the outputs of the converters, respectively, through the keys 12, 13, 14 and the diodes 1 16 and 17 are connected to the input of the recording device 18, the zero input three, the power 19 through the diode 20 and the binary counter 21 connected to the output divides the frequency 2, and the zero and single outputs of flip-flop 19 are connected respectively with control inputs and keys 21 and 22, all of which are respectively connected to the input of the quantum converter 1 and the input of the ring counter 23. The first, second and third outputs of the ring counter 23 are respectively connected to the keys 3, 14 and the binary counter 7, with keys 4, 12 and binary counter 8, with keys 5, 13 and BINARY counter b. By command of the Initial Circuit Counter 23, the trigger 19 and the binary counters B and 21 are reset. In this case, the keys 21 and 22 are closed. The binary counter 21 introduces the appendix D, which ensures the formation of an overflow pulse when the random integral is read: U. the following fp begin to arrive, respectively, at the inputs of the quantum n converter 1 and the ring counter 23. Simultaneously from the output of the frequency divider. 2, the frequency pulses ff / K start to arrive at the inputs of the keys 3, 4, 5. Toty inlet ring counter 23 generates at the first output signal which is supplied to key 3, reset circuit 14 and the binary counter 7 to the zero state. In this case, the keys 3, 14 open 9J, and the keys 4, 5, 12, 13 are closed, the binary counter 6 is filled with frequency pulses f and the random voltage V is integrated. The second frequency pulse f at the output of the ring counter 23 forms a signal at its second output and removes the signal from the first output. The control signal from the second output of the ring counter. 23 is supplied to the keys 4, 12 and the reset circuit of the binary counter 8. The keys 4, 12 are opened and the keys 3, 5, 13, 14 are closed. Binary counter 7 begins to fill with frequency f pulses. Simultaneously, as soon as key 12 is opened, code-voltage 9 is outputted through key 12 from diode generator output and diode 15 starts to receive a constant voltage U proportional to the integral of function U over a period the time between the first and second frequency pulses fо, the third frequency pulse fg at the input of the ring counter 23 generates a control signal at its third output and removes the signal from the second output, the control signal from the third output of the ring center tchika 23 enters the key 6, the reset circuit 13 and the binary counter used. In this case, keys B, 13 are opened, and keys 3, 4, 12, 14 are closed, binary counter 8 begins to fill with frequency pulses fj. When the key 13 / from the output of the converter code-voltage 10 is opened through the switch 13 and the diode 16, the constant voltage U starts to be applied to the input of the recording device 18, and the voltage U from the output of the converter code-voltage 9 is removed. The voltage Uj is proportional to the integral of the function Ux over a period of time between the second and third frequency pulses f. With the arrival of the fourth pulse of frequency f at the input of the ring counter 23, its operation cycle will begin to repeat. Thus, on the device 18, a step voltage consisting of voltages U 4 2 will be fixed with an increase in the frequency of the trace and 21 impulses from the envelope of the envelope voltage U decreases, leading to an ideal envelope.

When the device performs a predetermined interval of random voltage U-, the output of the double counter 21 will form a pulse of an over-current pulse, which through diode 20 will switch the trigger 19 to the zero state. Keys 21 and 22 will close. When giving commands Ex, D, Start, the operation of the device is repeated.

Claims (2)

1. USSR author's certificate No. 229051, cl. G About G 7/18, 19..06.67. 2. Authors' certificate of the USSR № 412602, cl. G 06 F 3/00, 01.24.72. Lf