SU432525A1 - TIME-PULSE MULTI-PURPOSE DEVICE - Google Patents

Description

one

The device is designed to convert information and can be used in analog computers and information processing complexes.

Known time and pulse multiplying devices containing pulse-width and amplitude-pulse modulators. An output signal proportional to the product of the input voltages is defined as the constant component of the sequence of pulse-width-modulated pulses. To isolate the constant component, liaccHBHbie or active filters are commonly used. The disadvantage of such multipliers is the low permissible frequency of change of the input signals, determined by the filter bandwidth.

In order to expand the frequency range, the proposed multiplexing device includes a memory pulse generator and a zero setting pulse generator, an integrating amplifier, electronic keys for switching the integrator input and output voltages, an output capacitor with a storage capacitor, I and inverters.

FIG. 1 shows a block diagram of the proposed multiplying device; in fig. 2

shows a temporary chart of his work.

The device contains a generator / linearly varying voltage, the output of which is connected to the input of the pulse-width 5 modulator 2 and the input of the generator 3 of the zero setting pulse. The second input of the modulator is connected to the input of the device, the other input of which is connected to the signal input of the key 4 and the input of the inverter 5. The output of the zero setting generator is connected to the input of the inverter 6, the input of the generator 7 of the min. Pulse and the input of the “II 8, second in . Which move through the inverter 9 conn; not with modulator output and control

input key 4, and the output is connected to the control input of the key 10. The output of the generator of the memory pulse through the inverter // is connected to the control input of the key 12 that connects the output of the integrator 13 to the split capacitor 14 connected in parallel to the input of the output amplifier 15. The input of the integrator the outputs of the keys 4, 10, the signal input of which is connected to the inverter 5 p 16. Signal v.chod

key 16 is connected to the total thickness of the device. In addition, the output of the generator 7 is directly connected to the input of the circuit 17, the second input of which is connected to the output of the inverter 6 and the control input of the key 16, and the output connected to the control input of the key 18 connected in parallel with the feedback capacitor of the integrator 13.

Works multiplying device as follows.

The voltage f / i from the output of the generator /, which varies in diaozone (see Fig. 2), is fed to the inputs of the modulator 2 and generator 3 of the zero setting emuls. At the output of the modulator, a sequence of positive imiuls is formed, the duration of which is proportional to the input voltage Them, and the frequency is constant and determined5; it is the generator parameters /. With Ll, the output of the setting pulse generator (Zero is formed by a positive pulse Ur. (See Fig. 2). The front of this pulse starts the memory impulse generator 7 (see L in Fig. 2).

During the positive output voltage of the generator 3, the inverter 6 opens 16, which grounds the input of the integrator 13. In a single period of the voltage of the generator (ia) of the integrator, a sequence of pulses is formed, the integral of which is proportional to the product (see 2). A voltage proportional to the product of the bank li is formed by the ia output of the integrator 13 (see f / iibixij in Fig. 2). To fix this voltage with a pulse of the generator of the mine, a switch 12 is opened through the inverter 11 and the capacitor 14 is charged before the output voltage of the integrator. After the memory pulse has been completed, for the response part of the zeroing pulse, the key 18 is opened through the AND 17 circuit and a zero voltage is set at the integrator output.

During the next period of operation of the generator / on the capacitor 14, the output voltage of the integrator is proportional to the product Ux ii ,, which is fed to the output through the amplifier 15 with high co-motivation.

Subject invention

The time is a pulse multiplying device containing a 1 M pulse-width modulator whose input is connected to the generator output of a linearly varying voltage, and the other to the first input of the device, a key and a first inverter connected to the second input of the device, characterized by that, in order to expand its frequency range, a memory nmix generator was inserted into it, a zero setting pulse generator connected with a memory pulse helix, and an input with a generator of linearly varying voltage, keys, Circuit diagrams, inverters, an output capacitor with a storage capacitor connected in parallel, and an integrating amplifier with a key connected in parallel and extending to a personal capacitor, a control input connected to the output circuit And, the inputs of which are connected to the output of the memory pulse generator and through a second inverter with an output generator impulse is set to zero, a receipt at the input of the integrated amplifier of the amplifier including a trh key, the inputs of the first key are connected to

the second input of the device and the output of the ShROPTO-PULSE modulator, the BTOJ50go inputs — with the output of the first inverter and the output of the circuit “And”, the inputs of which are connected to the output of the zero setting generator and the third inverter whose input is connected to the output of the pulse-width modulator , the inputs of the third key are connected to the zero potential bus and the inverted output of the pulse generator of the zero setting, and the integrator output of the amplifier is connected to the input of the output amplifier via a switch whose input through the fourth terminal ertor connected to the output of the generator imiulsa storage.

FIG. 2

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