CN219329119U

CN219329119U - Driving circuit for dynamic display of nixie tube and light-emitting diode

Info

Publication number: CN219329119U
Application number: CN202320112040.XU
Authority: CN
Inventors: 刘鹏辉; 梁爽; 王猛; 王磊; 徐红宗
Original assignee: Zhengzhou Smartgen Technology Co Ltd
Current assignee: Zhengzhou Smartgen Technology Co Ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-07-11
Anticipated expiration: 2033-01-18

Abstract

The utility model provides a drive circuit for dynamically displaying nixie tubes and light-emitting diodes, which comprises a main controller, a plurality of nixie tubes and a plurality of groups of light-emitting diodes, wherein the number of the light-emitting diodes in each group is not more than the number of segments of the nixie tubes, each group of light-emitting diodes is connected with one common line with the same polarity as the common end of the nixie tube, and the common ends of the nixie tubes and the common lines of the plurality of groups of light-emitting diodes are respectively connected with a bit gating control circuit; the same name end of each nixie tube display stroke is connected with the same segment gating control circuit, and the other electrode of each group of light emitting diodes is correspondingly connected with a plurality of segment gating control circuits one by one; the main controller controls the on-off of each bit gating control circuit and each segment gating control circuit. The driving circuit for dynamically displaying the nixie tube and the light-emitting diode has the advantages of reducing the number of control pins of the singlechip and being lower in cost.

Description

Driving circuit for dynamic display of nixie tube and light-emitting diode

Technical Field

The utility model relates to a display circuit, in particular to a drive circuit for dynamic display of a nixie tube and a light-emitting diode.

Background

At present, in some scenes (for example, a dual-power controller designed by an applicant), a plurality of nixie tubes and a plurality of light emitting diodes are required to be displayed together, and aiming at the situation, the traditional circuit design is that the nixie tubes and the light emitting diodes are respectively provided with independent driving circuits, wherein the light emitting diode driving circuits can adopt a matrix design, so that the number of used control pins of the nixie tube driving circuits can be less, but the number of the control pins of the nixie tube driving circuits is increased, the requirements on the number of pins of a singlechip become great, so that the cost of the singlechip is very high, and the integrated design of the light emitting diode driving circuits and the nixie tube driving circuits with low cost does not exist at present.

In order to solve the above problems, an ideal technical solution is always sought.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a nixie tube and light-emitting diode dynamic display driving circuit which can reduce the number of control pins of a singlechip and has lower cost.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the driving circuit for dynamically displaying nixie tubes and light-emitting diodes comprises a main controller, a plurality of nixie tubes and a plurality of groups of light-emitting diodes, wherein the number of the light-emitting diodes in each group is not more than the number of segments of the nixie tubes, each group of light-emitting diodes and one pole with the same polarity of the common end of the nixie tube are connected to a common line, and the common ends of the nixie tubes and common lines of the plurality of groups of light-emitting diodes are respectively connected with a bit gating control circuit; the same name end of each nixie tube display stroke is connected with the same segment gating control circuit, and the other electrode of each group of light emitting diodes is correspondingly connected with a plurality of segment gating control circuits one by one; the main controller controls the on-off of each bit gating control circuit and each segment gating control circuit.

Based on the above, the main controller is a single chip microcomputer, and the control signal input end of each bit gating control circuit and the control signal input end of each segment gating control circuit are respectively connected with the control pin of the single chip microcomputer.

Based on the above, the nixie tube adopts a common-negative nixie tube.

Based on the above, the bit gating control circuit comprises an NPN triode, a resistor I and a resistor II, wherein the base electrode of the NPN triode is connected with the control pin of the singlechip through the resistor I, a connecting line between the base electrode of the NPN triode and the resistor I is grounded through the resistor II, and the emitter electrode and the collector electrode of the NPN triode are grounded and connected with the common end of the nixie tube or common lines of all groups of light emitting diodes.

Based on the above, the segment gating control circuit comprises a PNP type triode, a resistor III, a resistor IV and a resistor V, wherein the base electrode of the PNP type triode is connected with the control pin of the singlechip through the resistor III, a connecting line between the base electrode of the PNP type triode and the resistor III is connected with a 5V power supply through the resistor IV, the emitter electrode of the PNP type triode is connected with the 5V power supply, the collector electrode is connected with one end of the resistor V, and the other end of the resistor V is connected with the segment code pin of the nixie tube and the anode of the light emitting diode.

Based on the above, the number of the nixie tubes is three, and the nixie tubes are eight-section nixie tubes; the light emitting diodes are arranged in two groups, wherein the first group is provided with eight light emitting diodes, and the second group is provided with seven light emitting diodes.

Compared with the prior art, the utility model has substantial characteristics and progress, in particular, one pole of each group of light emitting diodes is connected with a common line, the common ends of the common line and the nixie tubes are respectively connected with the bit gating control circuit, the homonymous end of each nixie tube displaying stroke is connected with the same segment gating control circuit, and the other pole of each group of light emitting diodes is correspondingly connected with a plurality of segment gating control circuits one by one, so that the structure effectively reduces the requirement on the quantity of control pins; when the display is controlled, the singlechip firstly controls the common end of a nixie tube or the common line of a group of light emitting diodes to be connected through the bit gating control circuit, then controls the on-off of each segment gating control circuit, controls the nixie tube to display numbers and the same group of light emitting diodes to be lighted, and realizes dynamic display through the cyclic control of a plurality of nixie tubes and a plurality of groups of light emitting diodes; the method has the advantages of reducing the number of the control pins of the singlechip and being lower in cost.

Drawings

FIG. 1 is a schematic diagram of a driving circuit for dynamically displaying nixie tubes and LEDs according to the present utility model.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

As shown in FIG. 1, a driving circuit for dynamically displaying nixie tubes and light-emitting diodes comprises a main controller, 3 nixie tubes and two groups of light-emitting diodes, wherein in the implementation, the nixie tubes adopt a common cathode nixie tube, the number of the nixie tubes is eight, the first group of light-emitting diodes is provided with eight light-emitting diodes in total, namely, an LED1, an LED2, an LED3, an LED4, an LED5, an LED6, an LED7 and an LED8, and the second group of light-emitting diodes is provided with seven light-emitting diodes in total, namely, an LED9, an LED10, an LED11, an LED12, an LED13, an LED14 and an LED 15; in other embodiments, the number of nixie tubes and the number of groups of light emitting diodes may be different, or a common-anode nixie tube or a nixie tube with other sections may be used, but the number of light emitting diodes in each group should not exceed the number of sections of the nixie tube, and the control principle is similar to that of the present embodiment.

In this embodiment, the cathodes of each group of the light emitting diodes are connected to a common line, and the common ends of the 3 nixie tubes and the common lines of the two groups of the light emitting diodes are respectively connected to a bit gating control circuit; the same name end of each nixie tube displaying stroke is connected with the same segment gating control circuit, the positive electrode of each group of light emitting diodes is correspondingly connected with a plurality of segment gating control circuits one by one (the second group of light emitting diodes are connected with 7 segment gating control circuits); the main controller is specifically a singlechip, and the control signal input end of each bit gating control circuit and the control signal input end of each segment gating control circuit are respectively connected with the control pin of the singlechip, so that the on-off of each bit gating control circuit and each segment gating control circuit can be controlled.

The bit gating control circuit comprises an NPN triode (Q9, Q10, Q11, Q12 and Q13), resistors I (R32, R34, R36, R37 and R38) and resistors II (R33, R35, R39, R40 and R41), wherein the base electrode of the NPN triode is connected with a control pin of the singlechip through the resistor I, a connecting line between the base electrode of the NPN triode and the resistor I is grounded through the resistor II, and the emitter electrode and the collector electrode of the NPN triode are grounded and connected with a public end of the nixie tube or common lines of all groups of light emitting diodes.

The segment gating control circuit comprises PNP type triodes (Q1, Q2, Q3, Q4, Q5, Q6, Q7 and Q8), resistors III (R24, R25, R26, R27, R28, R29, R30 and R31), resistors IV (R16, R17, R18, R19, R20, R21, R22 and R23) and resistors V (R8, R9, R10, R11, R12, R13, R14 and R15), wherein the base electrode of the PNP type triode is connected with the control pin of the singlechip through the resistor III, a connecting line between the base electrode of the PNP type triode and the resistor III is connected with a 5V power supply through the resistor IV, the emitter electrode of the PNP type triode is connected with one end of the resistor V, and the other end of the resistor V is connected with the segment code pin of the nixie tube and the anode of the light emitting diode.

Working principle:

when the first digital tube is displayed, the singlechip firstly conducts Q11, then selects Q1, Q2, Q3, Q4, Q5, Q6, Q7 and Q8 to conduct or break according to the number to be displayed, and displays the number;

when the second digital tube is displayed, the singlechip firstly conducts Q12, then selects Q1, Q2, Q3, Q4, Q5, Q6, Q7 and Q8 to conduct or break according to the number to be displayed, and displays the number of the digits;

when the third digital tube is displayed, the singlechip firstly conducts Q13, then selects Q1, Q2, Q3, Q4, Q5, Q6, Q7 and Q8 to conduct or break according to the number to be displayed, and displays the number;

when the first group of light emitting diodes are displayed, the singlechip firstly conducts Q9, then selects Q1, Q2, Q3, Q4, Q5, Q6, Q7 and Q8 to conduct or disconnect according to the lamps which need to be lighted, and displays the group of light emitting diodes;

when the second group of light emitting diodes are displayed, the singlechip firstly conducts Q10, then selects Q1, Q2, Q3, Q4, Q5, Q6 and Q7 to conduct or disconnect according to the lamps which need to be lighted, and displays the group of light emitting diodes;

the singlechip realizes dynamic display by circularly controlling the 3 nixie tubes and the two groups of light-emitting diodes.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. A drive circuit for dynamic display of a nixie tube and a light-emitting diode is characterized in that: the digital tube display device comprises a main controller, a plurality of digital tubes and a plurality of groups of light emitting diodes, wherein the number of each group of light emitting diodes does not exceed the number of segments of the digital tubes, one pole of which the polarity is the same as that of the public end of each digital tube is connected to a public line, and the public ends of the digital tubes and the common lines of the plurality of groups of light emitting diodes are respectively connected with a bit gating control circuit; the same name end of each nixie tube display stroke is connected with the same segment gating control circuit, and the other electrode of each group of light emitting diodes is correspondingly connected with a plurality of segment gating control circuits one by one; the main controller controls the on-off of each bit gating control circuit and each segment gating control circuit.

2. The drive circuit for dynamic display of nixie tubes and light emitting diodes according to claim 1, wherein: the master controller is a singlechip, and the control signal input end of each bit gating control circuit and the control signal input end of each segment gating control circuit are respectively connected with a control pin of the singlechip.

3. The drive circuit for dynamic display of nixie tubes and light emitting diodes according to claim 2, wherein: the nixie tube adopts a common negative nixie tube.

4. The drive circuit for dynamic display of nixie tubes and light emitting diodes according to claim 3, wherein: the bit gating control circuit comprises an NPN triode, a resistor I and a resistor II, wherein the base electrode of the NPN triode is connected with a control pin of the singlechip through the resistor I, a connecting line between the base electrode of the NPN triode and the resistor I is grounded through the resistor II, and the emitter electrode and the collector electrode of the NPN triode are grounded and connected with a public end of the nixie tube or common lines of all groups of light emitting diodes.

5. The drive circuit for dynamic display of nixie tubes and light emitting diodes according to claim 3, wherein: the section gating control circuit comprises a PNP type triode, a resistor III, a resistor IV and a resistor V, wherein the base electrode of the PNP type triode is connected with a control pin of the singlechip through the resistor III, a connecting line between the base electrode of the PNP type triode and the resistor III is connected with a 5V power supply through the resistor IV, the emitting electrode of the PNP type triode is connected with the 5V power supply, the collecting electrode is connected with one end of the resistor V, and the other end of the resistor V is connected with a section code pin of the nixie tube and the anode of the light emitting diode.

6. The drive circuit for dynamically displaying nixie tubes and light emitting diodes according to any one of claims 1-5, wherein: the number of the nixie tubes is three, and the nixie tubes are eight sections of nixie tubes; the light emitting diodes are arranged in two groups, wherein the first group is provided with eight light emitting diodes, and the second group is provided with seven light emitting diodes.