SU1417033A1 - Device for displaying information on gas-discharge indicator panel - Google Patents

Abstract

The invention relates to automation and computing, and is intended to control gas discharge display panels of alternating current (HIP). The purpose of the invention is to improve the reliability of the ISU, which contributes to the accuracy of the display of information. The goal is achieved by the fact that in a device containing a gas discharge indicator panel 1 and for each coordinate system there are three groups of diverging diodes 2, 3, 4, limiting resistors 5, through which the keys of the first group 6 are connected to the PCT electrodes, the writing pulse shaper erase 7 and the first decoupling diode 8, the second, third, fourth and fifth decoupling elements on the diodes 15,16,17,18 are introduced. 2 Il. i

Description

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The invention relates to automation and computing and is intended to control gas discharge display panels of alternating current (HIP).

The purpose of the invention is to increase the reliability of the GUI, which contributes to improving the reliability of the display of information.

FIG. 1 shows a functional diagram of the device; in fig. 2 timing diagrams of voltage formation on the ISU electrodes, obtained by applying to them the pulses of the reference voltage U, the voltage

Up steps and control pulses (write-erase) in three operation modes: playback, recording, erasing.

The device contains a gas-discharge indicator panel 1 and, for each coordinate system, the first 2, second 3, third 4 groups of uniting diodes

Diodes, limiting resistors 5, through which the keys of the first group 6 are connected to the panel electrodes and to the cathodes (anodes) of the diodes of the first group 2 and to the anodes (cathodes) of the diodes of the second group 3, the inputs of the keys of the first group 6 are connected to one output of the driver 7 pulse-erase-pulses, another vygeod of which is connected to the anodes (cathodes) of the diodes of the first group 2, with the anode (cathode) of the first decoupling diode 8, with the inputs of the keys of the second group 9, the input of the second key is connected to the cathode of the diode 8 for each coordinate system 10 whose output is connected with a tire of zero potential. The outputs of the keys of the second group 9 are connected to the cathodes (anodes) of the diodes of the second group 3 and with the anodes (cathodes) of the diodes of the third group 4 the cathodes (anodes) of the diodes of the third group 4 are connected to the cathode (anode) of the first diode 8, and for the electrodes along the Y coordinate and with the output of the third key 11, the input of which is connected to the output of the first source 12 of the reference voltage. The cathode (anode) of the first diode 8 is connected to the output of a fourth key 13 connected by an input to the first source 12 of the reference voltage. The first switch 14 in each coordinate system is connected between the points of connection of the cathodes of the second 15 and third 16 diodes and anodes of the fourth 17 and fifth of the diodes. Connection point

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the anode of the second 15 and the cathode of the fourth 17 diodes is connected to the second source 19 of the reference voltage, and the connection point of the anode and cathode of the third 16 and fifth 18 diodes is connected to the output of the fourth switch 13.

The control device operates as follows.

In the playback mode, on the electrodes of the panel 1, reference voltage pulses are generated, as shown in FIG. 2. In the time interval, the fourth 13 and second 10 keys are open, creating a current path along the circuit; the positive terminal of the source 12 of the reference voltage, the key 13, the first group of 2 dissolving diodes, the electrodes X and the electrode circuit of the panel along the coordinate 9: the first group of diodes 3, the second key 10, the negative terminal of the source 12 (zero potential bus). At the same time, the voltage level on the electrodes along the X coordinate and the voltage level Up on the electrodes along the Y coordinate are formed.

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key 10 and the first key 14 opens, will form the voltage level of the step and sg on the electrodes along the Y coordinate of panel 1 along the circuit: the positive terminal of the second source 19 of the reference voltage, diode 15, key 14, diode 18, public keys of the second group 9, diodes of the second group 3, electrodes along the Y coordinate of the panel 1; The magnitude of the voltage surge on the diodes of the first group 2, due to the inductance of the voltage forming circuits of the step, is limited by the voltage of the diode 16, key 14, diode 17, t . the voltage level at the electrodes along the Y coordinate of the panel 1 is fixed at the level of the source 19 of the voltage level. In time interval 3, the second 10 and third 11 keys are opened, forming the voltage level U on the electrodes X, and the voltage level U on the electrodes along the Y coordinate. The current path is generated along the circuit: the positive terminal of the source 12 of the reference voltage, the third key 11 , diodes of the third group 4, second group of diodes 3, electrodes on coordinates X, Y of panel 1, second group of diodes 3, third group of diodes 4, second switch 10, negative terminal of source 12 (zero potential bus). In the interval

time tj-t, the second key 10n closes. The first key 13 opens, forming a voltage level. on the electrodes on the X coordinate of the panel 1 circuit: the positive output of the source 19, diode 15, first switch 14, diode 18, diodes of the first group 2, electrodes on the x coordinate of panel 1. The voltage level on the electrodes on the x coordinate of panel 1 is also fixed at the voltage level of source 19.

Thus, in the time interval tp-C on the electrodes along the coordinates X, Y, pulses are maintained to maintain the discharge of a stepped form.

In the recording and erasing modes, the time diagram of the voltages on the electrodes of panel 1 is similar to the playback mode, except that in the recording mode, the tg-tg time interval on the voltage Uj of the selected electrode is superimposed on the X coordinate recording pulse formed by a circuit: positive the output of the driver 7 write-erase pulses, the open control key of the first group 6, the resistor 5, the electrode along the X coordinate of the panel 1. At the same time, the write pulses on the unselected electrodes are shunted to the negative terminal Atel 7 Record- erase pulses through the diodes of the second group 3 and the public keys of the second group 9.

Along the Y coordinate, a write pulse is superimposed on the voltage level U T of the selected electrode and is formed by a circuit: the negative side of the driver of the write-erase pulses 7, the open control key of the first group. 6, resistors 5, and the writing pulses on the unselected electrodes are shunted to the positive output of the write 7 erase pulses through the third group and the public keys of the second group 9,

Similarly, the position of the erase pulses is made to voltage levels along the X and Y coordinates, except that in the time interval. Additionally, the fourth key 13 is opened, providing the erase pulse on the selected electrode is subtracted along the Y coordinate from the reference voltage level Ujn. The first diodes 8 prevent the control pulses from being bypassed on the selected electrodes.

The proposed device is characterized by the absence of voltage surge at the top of the step pulse at the time of its front formation, which leads to false switching on and off of the display elements of the indicator, achieved by pinning the electrode potential to the voltage source of the step pulse, which will reliability of the control device as a whole.

Claims (1)

Invention Formula A device for displaying information on a gas-discharge indicator panel, containing reference voltage sources, one of the terminals of which is connected to a zero potential bus, for each of the coordinates is the first key, erasing write-erase drivers, the output of which is connected to the key inputs of the first group, limiting elements on resistors, three groups of isolating elements on diodes, the first isolating element on the diode, the outputs of the keys of the first group are connected to one of the terminals of the resistors, the other terminals of which are connected with the corresponding gas-discharge display panel tires, with cathodes and anodes of diodes of the first groups and with anodes and cathodes of diodes of the second group along the X and Y coordinates, respectively, the other terminals of the write-die pulse drivers are connected to the anodes and cathodes of the diodes of the first groups, with the anode and cathode of the first diode and c. the inputs of the keys of the second groups on the coordinates X and Y, respectively, the outputs of the keys of the second groups are connected to the cathodes and anodes of the diodes of the second groups and to the anodes and cathodes of the diodes of the third groups on the coordinates X and Y, respectively, the cathodes and anodes of the diodes of the third groups diodes on coordinates X and Y, respectively, whose cathodes are connected to the inputs of the second keys, passwords 50 55 which is connected to the zero potential bus, another output of the first voltage source is connected to the input of the third key, the output of which is connected to the anode of the first diode along the Y coordinate, the cathode of which is connected to the output of the fourth key along the Y coordinate, whose input is connected to another output of the first source reference voltage connected to the fourth key is entered by the coordinate Y, the output of which is connected to the anode of the first diode by the coordinate X, characterized in that, in order to increase the reliability of the device, it contains the second, third, fourth, and fifth developing diodes on the diodes, the cathodes second and third diodes and anodes of the fourth 14170336 and the fifth diodes are connected to the corresponding pins of the first switch, another output of the second voltage source is connected to the anode of the second and fourth cathodes of the fourth diodes, the anodes and cathodes of the third and fifth diodes are connected to the anodes and cathodes of the first diodes in coordinates X and Y, respectively . Compiled by A.Kuliyeva Editor E. Kopcha Tehred A. Kravchuk Proofreader V. But ha Order 4069М9 Circulation 459 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Subscription