SU471610A1 - Analog storage device - Google Patents

Description

(54) ANALOG STORAGE DEVICE

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The invention relates to analog storage devices and may find application in automation and computing devices.

Known magnetic analog storage devices (RAM) with composite cores. However, these devices, due to their low speed, are of limited use in engineering.

The purpose of the invention is to eliminate this disadvantage by acting on the process of storing an analog value (magnetization of the control core MAZU) in the pauses between the control pulses.

In the proposed device, an increase in the speed of the device is achieved due to the fact that the load circuit of the amplifier, consisting of a switching transistor, an adjusting and load resistors, a power source, together with a control source, is connected in parallel to the control windings of the MAZU and the input of the amplifying transistor. with the secondary winding of the transformer. Its primary winding is included in the MAZ load circuit. In this way, the input of the switching transistor in the control circuit is connected to two series-connected resistors, and the input of the switching transistor 3 of the load circuit of the device is connected to the series-connected resistors at the input and output of the MAZ.

The device consists of a magnetic core 1, a reset winding 2, control windings 3 and 4, an output winding 5, a rectifier 6, an alternating voltage source 7, a transformer 8, resistors 9-13, transistors 14-16, a capacitor 17, sources constant 18 and control voltage 19, input V and output U controls, control voltages U and t / 4.

The control voltage source 19, the transistor IG, the capacitor 17, clamped with a switch, is connected to the control winding 3 MAZU. In this case, the emitter-base gap of the transistor 16 is connected to the series-connected resistors 12 and I. The transistor 14 is connected to the secondary

the winding of the transformer 8. Transistor 15

connected to transistor 14, the source

DC voltage 18 and winding 4

MAZU.

Winding 5 controlled core A

The MAZU through the rectifier 6 is connected to the source 1. The primary winding of the transformer 8 and the load resistor 9 are connected to the output terminals of the rectifier. Output signal (memorized voltage)

Vi enters the terminals a, b of the device, on

terminals c, d - sequence of rectangular pulses (for example, from a pulse generator, blocking generator, etc.). The device operates as follows.

Assume that the initially magnetic hard core B MAZU is demagnetized by applying to the winding 2 a reset pulse. There is no voltage on resistor 9. Let the input t / j be the voltage to be memorized. In this case, the transistor 16 is turned on, since an unbinding impulse voltage is supplied to its base-emitter gap, which is the difference in voltage drops across resistors 12 and AND - (/ 3-f / 4) - From the control voltage source 19 the capacitor 17 starts to charge, and from pulse to pulse the current in the winding 3, which magnetizes the hard magnetic core MAZU, increases. From pulse to pulse, the voltage across the resistor 9 decreases. A change in the voltage across it due to the presence of a residual flux of the hard-core MAZU core in the pauses between the pulses leads to a pulsed e. d. in the secondary winding (II) of the transformer 8. In view of the fact that the transistor 15 opens due to the voltage drop across the resistor 9 (, ed. s. is taken into account by the transistor 14 and, therefore, a current pulse flows through the winding 4 The control pulses additionally magnetize the magnetically hard MAZU core.

After the voltage f / 2 is compared with Ui, their difference will be a very small value, practically determined by the sensitivity threshold of the transistors 15, 16, the latter are turned off. Consequently,

the voltage across the resistor 9 with a certain error of memory will correspond to the voltage to be memorized and. To write another t / i value, you should reset the recorded information using winding 2 and use a key to discharge capacitor 17. Thus, due to the reduced circuitry of the device, its speed can be increased by at least 2 times due to control the magnetizing process of the control core MAZU in the pauses between the control pulses.

Subject invention

Analog memory device containing a magnetic core with control and output with windings, a rectifier, a capacitor and resistors, two switches and an amplifier, made on transistors, characterized in that it contains a transformer, one output of the secondary winding to increase the speed of the device which is connected to the base of the transistor amplifier, the other to its emitter, and one output of the primary winding is connected to one of the outputs of the rectifier, the other to the output of the device, the base of the transistors of the keys are connected to one From the device inputs and through series-connected two resistors to the collector of the amplifier transistor, the emitter of which is connected to one of the outputs of the first control winding, the second output of which is connected to the collector of the first switch through a constant voltage source.