SU1213507A1 - Indicator device - Google Patents

Abstract

The invention relates to devices for displaying information and can be used in indicators on matrix AC discharge panels. The purpose of the invention is to simplify the device and increase its reliability. The device contains a gas discharge indicator panel 1, three-level electronic switches 2, voltage of X coordinate, two-level electronic keys 3 V coordinates, sensor 4 of code information, address-scanning unit 00 SP

Description

5 and 6, respectively, at coordinates X and Y, source 7 of synchronization pulses of support, writing and erasing, source 8 of constant voltage (supports, source 9 of the invention relates to devices for displaying information and can be used in the indicators on the atomic gas discharge panels x alternating current (GIL), for example, when displaying a graphic information sign.

The purpose of the invention is to simplify the design of the display device and improve its reliability by attaching GIL electrodes along one of the coordinates of three-level electronic voltage switches in the commutation circuit and excluding a group of functional units and additional elements from the device.

Figure 1 presents the scheme of the proposed indicator device; Fig. 2 shows voltage diagrams on HIP electrodes.

The algorithm for recording information can be any: pointwise, line-by-line, micro-line, etc. In the proposed device using line-by-line recording, providing maximum performance of the output of information on the GSH screen.

The proposed device contains a gas-discharge indicator panel 1, three-level electronic switches 2, voltage of X coordinate, two-level electronic keys 3 coordinates of Y, sensor 4 of code information, address-scanning unit 5 on coordinate X, address-scanning unit 6 on coordinate Y, source 7 synchronization pulses support, write and erase, a source of 8 constant voltage (support), a source of 9 constant voltage

(records).

The matrix of the gas discharge panel 1 horizontal tires associated with the outputs of the two-level electronic

the voltage required (write). The recording algorithm can be any: pointwise, line by line, microstreet, etc. 2 Il.

the keys 3, and the vertical ones with the outputs of the three-level electronic switch 2 voltage. Electronic switches 2 voltage second

the switching inputs are connected to the power supply bus of the constant-voltage source (support) 8, and the first to the power supply bus of the constant-voltage source (write) 9. The sensor 4 of the code information is connected via the address-scanning unit 5 coordinates X to the information inputs of electronic switches .2 voltage X coordinates, and through the address-scanning unit 6 coordinates Y to the information inputs of electronic two-level keys 3 coordinates (when line-by-line recording information b) is not used). A source

7 synchronization pulses of support, recording and erasing by the first output are connected to the control inputs of the three-level electronic switch 2 voltage, the second output is connected to the control inputs of the two-level electronic switch 3.

The device works as follows.

The source of 7 synchronization pulses of recording and erasing information generates at its outputs pulses that control the order of operation of the device. Pulses synchronization, support, recording and erasing information from

The first output of the synchronization source 7 is fed to the control inputs. three-level electronic switches 2 voltage and set them in one of three possible conditions

depending on the information received from sensor 4 to the information inputs of the switches. Similarly, synchronization pulses from the second output of source 7 are synchronized 3.

The inputs arrive at the control inputs of the two-level electronic switches 3 and set them in one of two possible states. In this case, the switching inputs of switches and keys arrive at the support voltage from the source8, and for the first time the switching inputs of the three-level electronic voltage switches enter the recording voltage from the source 9 .

The synchronization sequence diagram is built in such a way that, in the support mode for the GUI electrodes, the source voltage of positive polarity is alternately applied at both coordinates, and in each half-period of the control voltage one of these coordinates is closed by the corresponding group of keys on a common panel. The full-voltage recording from the constant-voltage source 9 is applied to the electro-plating electrodes selected by the information inputs of the switches 2, and the electric current selected by one of the information inputs keys 3, the electrode of the ISU is closed on a common bus. All the unselected GUI electrodes according to the Y coordinate are connected with the electronic keys 3 to the power supply voltage bus 8 of the support voltage. Similarly, a selective erase operation is performed with the only difference that instead of recording voltage from source 9 in this case voltage is applied from source 8 (as well as with support), and the duration and timing of the pulse inside the control period are also changed.

The use of three-level switches and two-level keys of integrated circuits, for example, P09KN5, significantly simplifies the device and improves its operational reliability.

Claims (1)

Invention Formula An indicator device containing a matrix gas discharge indicator7 a dashboard, a ruler of two-level electronic keys, a sensor of code information, two address-scanning blocks, respectively, on X coordinates and a source of support, write and erase synchronization pulses, a constant voltage source, and the outputs of two-level electronic keys are connected to the horizontal (U) electrodes of the panel, and their first switching inputs to the output of a constant voltage source, the first and second outputs of the sensor of code information, respectively, are connected to the inputs of addressable scanning units in X coordinates and, one of the outputs of the source of synchronization pulses of support, write and erase is connected to the control inputs of two-level keys, characterized in that, in order to simplify the device and increase its operational reliability, it is additionally entered a line of three-level electronic switches — and a second source of direct voltage; the outputs of the switches are connected to the vertical (x) electrodes of the indicator panel, the first switching inputs of the switches are connected to the output of the second constant voltage source, the second switching inputs of the switches are connected to the output of the first a constant voltage source, the control inputs of the switches are connected to another output of the source of the synchronization pulses of support, recording and erasing, their information the inputs are connected to the corresponding outputs of the address-scanning unit in the X coordinate, the outputs of the address-scanning unit in the Y coordinate are connected to the information inputs The two-level switches, the second switching inputs of the two-level switches, and the third switching inputs of the switches are connected to the common point of the DC voltage sources. We will solve support Fiá.1