SU503293A1 - Memory element - Google Patents

Description

one

The invention relates to automation and computing and can be used in computing, information and telemetry devices.

A memory element is known, comprising a core with a rectangular hysteresis loop, stitched by input and output windings and a read winding, a power source and a thyristor. However, a well-known memory element allows storing relatively small currents (for example, current pulses for transmitting information in digital computing devices), and the implementation of a memory circuit that provides reading without destroying information is possible with at least four windings.

The aim of the invention is to expand the scope of the memory element and increase its reliability. This is achieved by the fact that the proposed element contains a photo thyristor optocoupler and a limiting resistor, the photo thyristor optocoupler cathodes are connected to the beginning of the output winding, the photo thyristor optocoupler LED anode is connected to the end of the output winding and the negative terminal of the power supply, and the photo thyristor anode is connected .

The proposed memory element remembers the fact of the flow of a pulsed current of up to 5 A and provides information in the form of a voltage level. There is complete galvanic isolation between the monitored circuit and the memory element, which makes it possible to memorize information on the flow of current in the electrical circuits without electrical contact between the monitored circuit and the memory element (non-contact). The inclusion of a photothyristor optocoupler improves the reliability of the circuit by reducing the number of windings. The reduction in the number of windings and the total reduction in turns allows you to perform

Recording winding with a large cross-section wire in the appropriate insulation when choosing high-coercive cores of small diameter, on the basis of which noise-resistant, economical, thermostable devices can be built.

The drawing shows a schematic diagram of the element.

It contains a core 1 with an input winding 2 located on it, a read winding 3, an output winding 4, a photo thyristor optocoupler 5 and a limiting resistor 6.

When a controlled current flows through the input winding 2, the core does not magnetize into one of the stable states (state "1). When current is applied through the readout winding 3, the core is re-magnetized into the "O" state, and an output signal is induced on the output winding 4, which turns on the photo-thyristor through the LED. The photothyristor current, which has flowed through the output winding, returns the core to the state "1.

Resistor 6 serves to limit the anode current of the photothyristor.

Claims (1)

Invention Formula A memory element containing a core with a rectangular hysteresis loop, padded input and output windings and a read winding, and a power source, characterized in that, in order to expand the application area and increase the reliability of the element, it contains a phototristor optocoupler and a limiting resistor, the phototiristor optocoupler cathodes are connected to the beginning of the output winding; at the end of the output winding and the negative terminal of the power source, and the photo thyristor anode is connected via a limiting resistor to the positive terminal of the power source.