CN204257173U - Colored segment code type digital tube display device - Google Patents
Colored segment code type digital tube display device Download PDFInfo
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- CN204257173U CN204257173U CN201420762085.2U CN201420762085U CN204257173U CN 204257173 U CN204257173 U CN 204257173U CN 201420762085 U CN201420762085 U CN 201420762085U CN 204257173 U CN204257173 U CN 204257173U
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Abstract
The utility model relates to a kind of colored segment code type digital tube display device, it is characterized in that: it comprises colored digital tube drive circuit and the colored segment code type digital pipe display circuit by colored digital tube drive circuit control work; Described colored digital tube drive circuit comprises microcontroller, be connected to microcontroller receive brightness data and export analog quantity D/A converter module, to be connected with microcontroller carry out route conducting control routing selecting module, being connected with routing selecting module to be transported to respective lines carry out the charging voltage that keeps and to keep module and be connected with routing selecting module selecting signaling module with the numerical digit selecting signal to realize conducting to corresponding numerical digit by analog quantity.The purpose of this utility model is to provide the colored segment code type digital tube display device that a kind of circuit structure is simple, cost of products is low, result of use is good.
Description
Technical field
The utility model relates to a kind of colored segment code type digital tube display device.
Background technology
At present, main and micro computer (or single-chip microcomputer) fit applications of segment code type charactron, is controlled the displaying contents of segment code type charactron by many control lines by micro computer.With when economizing common cathode or the common anode connection of control line number most, the control line that common single light source charactron needs comprises: 8 root segment codes select the digit selection line of lines Duan Jiayi radix point sections of composition numeral (7 respectively) and corresponding figure place.The charactron of monochromatic source needs 8 short in size rotational lines; For the double-colored segment code type charactron of two light source, because each segment encode both increases the D of another kind of color, so corresponding segment encode selects line to need 8*2=16 root; In like manner, for the charactron (also known as seven color charactrons, can show red, green, blue, Huang, purple, green grass or young crops, white seven kinds of controlled color) of three-color light source, corresponding segment encode selects line to need 8*3=24 root.
Required control line is looked at the segment code type charactron group of 4 display numerals:
Monochromatic source charactron: 8+4=12 (control line)
Bi-coloured light source digital pipe: 8*2+4=20 (control line)
Three-color light source charactron: 8*3+4=28 (control line)
In actual applications, the quantity of control line that segment code type charactron needs determines the manufacturing cost of this product significantly and uses the cost of driving circuit (micro computer) of this product.Therefore double-colored segment code type charactron application is few in the market, and the application of three look segment code type charactrons is more rare.
Summary of the invention
The purpose of this utility model is to provide the colored segment code type digital tube display device that a kind of circuit structure is simple, cost of products is low, result of use is good.
The purpose of this utility model is achieved through the following technical solutions: a kind of colored segment code type digital tube display device, is characterized in that: it comprises colored digital tube drive circuit and the colored segment code type digital pipe display circuit by colored digital tube drive circuit control work; Described colored digital tube drive circuit comprises microcontroller, be connected to microcontroller receive brightness data and export analog quantity D/A converter module, to be connected with microcontroller carry out route conducting control routing selecting module, being connected with routing selecting module to be transported to respective lines carry out the charging voltage that keeps and to keep module and be connected with routing selecting module selecting signaling module with the numerical digit selecting signal to realize conducting to corresponding numerical digit by analog quantity.
Compared to prior art, the utility model has the advantage of:
(1) arranged by the reasonable connection of colored digital tube drive circuit, not only its circuit structure is succinct, reduces costs, and effectively can control colored segment code type digital pipe display circuit, make the work of colored segment code type charactron accurate;
(2) colored segment code type digital pipe display circuit, its circuit forms succinct, easily manufactured, is easy to control.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of colored digital tube drive circuit.
Fig. 2 is the structural representation of a kind of embodiment of colored segment code type digital pipe display circuit.
Embodiment
Below in conjunction with Figure of description and embodiment, the utility model content is described in detail:
The embodiment schematic diagram of a kind of colored segment code type digital tube display device provided for the utility model as depicted in figs. 1 and 2.
A kind of colored segment code type digital tube display device, is characterized in that: it comprises colored digital tube drive circuit and the colored segment code type digital pipe display circuit by colored digital tube drive circuit control work; Described colored digital tube drive circuit comprises microcontroller, be connected to microcontroller receive brightness data and export analog quantity D/A converter module, to be connected with microcontroller carry out route conducting control routing selecting module, being connected with routing selecting module to be transported to respective lines carry out the charging voltage that keeps and to keep module and be connected with routing selecting module selecting signaling module with the numerical digit selecting signal to realize conducting to corresponding numerical digit by analog quantity.
As shown in Figure 1, described colored digital tube drive circuit also comprises 8 root segment codes and controls output line DM outx, x is corresponding segment encode control line numbering 1-8, and described microcontroller is that in MCU, MCU, 8 pins control output line DM outx respectively and connect one to one with corresponding segment encode.MCU can adopt 51 series monolithics, as models such as 8155 or 8255, or also can adopt CF745 chip.
As illustrated in fig. 1 and 2, in one embodiment, described D/A converter module comprises power and position row resistance RP1, resistance R23A, resistance R22A, resistance R21A, electric capacity C1 and amplifier A0, one end of power and position row resistance RP1 carries out corresponding connection by data bus with 8 pins controlling the microcontroller that output line DM outx connects with 8 root segment codes, the other end of power and position row resistance RP1 and one end of resistance R23A, the in-phase input end of amplifier A0 is connected, the other end of resistance R23A is connected with one end of resistance R22A, the other end of resistance R22A and one end of resistance R21A, one end of electric capacity C1, the inverting input of amplifier A0 is connected, the output terminal of amplifier A0 and the other end of resistance R21A, the other end of electric capacity C1, routing selecting module is connected.
Described routing selecting module comprises 1 and selects 8 chip CD4051, phase inverter U1, phase inverter U2 and phase inverter U3,1 selects the address end of 8 chip CD4051 to carry out corresponding being connected with the output terminal of phase inverter U1, the output terminal of phase inverter U2, the output terminal of phase inverter U3 respectively, 1 selects that 8 chip CD4051's forbid that input end is connected with amplifier A0, and the output terminal of the output terminal of phase inverter U1, the output terminal of phase inverter U2, phase inverter U3 carries out corresponding being connected respectively with the pin of MCU.
Described voltage keeps module to comprise red, green, blue three driving voltages selecting three passages of 8 chip CD4051 to be connected respectively with 1 and keeps circuit.Red driving voltage keeps circuit to comprise electric capacity CR1, amplifier A1, triode Q5 and basic colors control output line Rout, one end of electric capacity CR1 and the in-phase input end of amplifier A1 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q5 is connected with the output terminal of the inverting input of amplifier A1, amplifier A1, and emitter and the basic colors of triode Q5 control output line Rout and be connected.Green driving voltage keeps circuit to comprise electric capacity CG1, amplifier A2, triode Q6 and basic colors control output line Gout, one end of electric capacity CG1 and the in-phase input end of amplifier A2 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q6 is connected with the output terminal of the inverting input of amplifier A2, amplifier A2, and emitter and the basic colors of triode Q6 control output line Gout and be connected.Blue driving voltage keeps circuit to comprise electric capacity CB1, amplifier A3, triode Q7 and basic colors control output line Bout, one end of electric capacity CB1 and the in-phase input end of amplifier A3 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q7 is connected with the output terminal of the inverting input of amplifier A3, amplifier A3, and emitter and the basic colors of triode Q7 control output line Bout and be connected.
Described numerical digit is selected signaling module to comprise 1 one or more numerical digit selecting the passage correspondence of 8 chip CD4051 to be connected and is selected signal line Wz, and z is that corresponding numerical digit selects signal line numbering.Described numerical digit is selected signal line Wz to comprise resistance R1zA, triode QWz and numerical digit and is selected output line Wei Xuan z.Resistance R1zA and 1 selects a respective channel of 8 chip CD4051 to be connected, and resistance R1zA is connected with the base stage of triode QWz, and collector and the numerical digit of triode QWz select output line Wei Xuan z to be connected.
Described colored segment code type digital pipe display circuit comprises and to control basic colors control line Rin, Gin, Bin that output line Rout, Gout, Bout be connected respectively with basic colors in colored digital tube drive circuit and control the corresponding 8 root segment code control lines be connected of output line with 8 root segment codes in colored digital tube drive circuit.
Every bar segment encode is selected line is parallel with more than one triode Qzx, namely every bar segment encode selects line to be parallel with corresponding triode Qzx in corresponding numerical digit, base stage and the segment encode of triode Qzx control output line DM outx and are connected, emitter and the numerical digit of triode Qzx select output line Wei Xuan z to be connected, the collector of triode Qzx is parallel with three light source group DR, DG, DB, and three light source group DR, DG, DB are connected with corresponding basic colors control line Rin, Gin, Bin respectively.Light source group DR comprises the LED light source DzxRn that more than one negative electrode is connected with the collector of triode Qzx, light source group DG comprises the LED light source DzxGn that more than one negative electrode is connected with the collector of triode Qzx, light source group DB comprises the LED light source DzxBn that more than one negative electrode is connected with the collector of triode Qzx, and n is the numbering of LED light source corresponding number.The anode of LED light source DzxRn is connected with the port of basic colors control line Rin by resistance RRn, the anode of LED light source DzxGn is connected with the port of basic colors control line Gin by resistance RGn, and the anode of LED light source DzxBn is connected with the port of basic colors control line Bin by resistance RBn.
Principle of work of the present utility model is as follows:
1) MCU outputs to data bus, the analog quantity that D/A converter module output red drives driving the brightness data (0-255) of red LED, and MCU is loaded into red LED driving voltage holding circuit by A1, A2, A3 address wire this analog quantity; In like manner then load green, blue analog quantity to corresponding green, blue led driving voltage holding circuit.
2) with reference to the drive principle of conventional segment code type charactron, MCU controls router conducting WEI XUAN 1 by A1, A2, A3 and selects signal, the segment encode control line then in conducting DM1 to DM8 to the numerical digit of in WEI XUAN 4.Thus the light source lighted on the corresponding short in size control line of corresponding numerical digit.
Claims (8)
1. a colored segment code type digital tube display device, is characterized in that: it comprises colored digital tube drive circuit and the colored segment code type digital pipe display circuit by colored digital tube drive circuit control work; Described colored digital tube drive circuit comprises microcontroller, be connected to microcontroller receive brightness data and export analog quantity D/A converter module, to be connected with microcontroller carry out route conducting control routing selecting module, being connected with routing selecting module to be transported to respective lines carry out the charging voltage that keeps and to keep module and be connected with routing selecting module selecting signaling module with the numerical digit selecting signal to realize conducting to corresponding numerical digit by analog quantity.
2. colored segment code type digital tube display device according to claim 1, it is characterized in that: described colored digital tube drive circuit also comprises 8 root segment codes and controls output line DM outx, x is corresponding segment encode control line numbering 1-8, described microcontroller is that in MCU, MCU, 8 pins control output line DM outx respectively and connect one to one with corresponding segment encode.
3. colored segment code type digital tube display device according to claim 2, it is characterized in that: described D/A converter module comprises power and position row resistance RP1, resistance R23A, resistance R22A, resistance R21A, electric capacity C1 and amplifier A0, one end of power and position row resistance RP1 carries out corresponding connection by data bus with 8 pins controlling the microcontroller that output line DM outx connects with 8 root segment codes, the other end of power and position row resistance RP1 and one end of resistance R23A, the in-phase input end of amplifier A0 is connected, the other end of resistance R23A is connected with one end of resistance R22A, the other end of resistance R22A and one end of resistance R21A, one end of electric capacity C1, the inverting input of amplifier A0 is connected, the output terminal of amplifier A0 and the other end of resistance R21A, the other end of electric capacity C1, routing selecting module is connected.
4. colored segment code type digital tube display device according to claim 3, it is characterized in that: described routing selecting module comprises 1 and selects 8 chip CD4051, phase inverter U1, phase inverter U2 and phase inverter U3,1 selects the address end of 8 chip CD4051 to carry out corresponding being connected with the output terminal of phase inverter U1, the output terminal of phase inverter U2, the output terminal of phase inverter U3 respectively, 1 selects that 8 chip CD4051's forbid that input end is connected with amplifier A0, and the output terminal of the output terminal of phase inverter U1, the output terminal of phase inverter U2, phase inverter U3 carries out corresponding being connected respectively with the pin of MCU.
5. colored segment code type digital tube display device according to claim 4, is characterized in that: described voltage keeps module to comprise red, green, blue three driving voltages selecting three passages of 8 chip CD4051 to be connected respectively with 1 and keeps circuit; Red driving voltage keeps circuit to comprise electric capacity CR1, amplifier A1, triode Q5 and basic colors control output line Rout, one end of electric capacity CR1 and the in-phase input end of amplifier A1 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q5 is connected with the output terminal of the inverting input of amplifier A1, amplifier A1, and emitter and the basic colors of triode Q5 control output line Rout and be connected; Green driving voltage keeps circuit to comprise electric capacity CG1, amplifier A2, triode Q6 and basic colors control output line Gout, one end of electric capacity CG1 and the in-phase input end of amplifier A2 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q6 is connected with the output terminal of the inverting input of amplifier A2, amplifier A2, and emitter and the basic colors of triode Q6 control output line Gout and be connected; Blue driving voltage keeps circuit to comprise electric capacity CB1, amplifier A3, triode Q7 and basic colors control output line Bout, one end of electric capacity CB1 and the in-phase input end of amplifier A3 are connected in parallel in 1 and select in a respective channel of 8 chip CD4051, the base stage of triode Q7 is connected with the output terminal of the inverting input of amplifier A3, amplifier A3, and emitter and the basic colors of triode Q7 control output line Bout and be connected.
6. colored segment code type digital tube display device according to claim 5, it is characterized in that: described numerical digit is selected signaling module to comprise 1 one or more numerical digit selecting the passage correspondence of 8 chip CD4051 to be connected and selected signal line Wz, and z is that corresponding numerical digit selects signal line numbering; Described numerical digit is selected signal line Wz to comprise resistance R1zA, triode QWz and numerical digit and is selected output line Wei Xuan z; Resistance R1zA and 1 selects a respective channel of 8 chip CD4051 to be connected, and resistance R1zA is connected with the base stage of triode QWz, and collector and the numerical digit of triode QWz select output line Wei Xuan z to be connected.
7. colored segment code type digital tube display device according to claim 6, is characterized in that: described colored segment code type digital pipe display circuit comprises and to control basic colors control line Rin, Gin, Bin that output line Rout, Gout, Bout be connected respectively with basic colors in colored digital tube drive circuit and control the corresponding 8 root segment code control lines be connected of output line with 8 root segment codes in colored digital tube drive circuit.
8. colored segment code type digital tube display device according to claim 7, it is characterized in that: every bar segment encode is selected line is parallel with more than one triode Qzx, namely every bar segment encode selects line to be parallel with corresponding triode Qzx in corresponding numerical digit, base stage and the segment encode of triode Qzx control output line DM outx and are connected, emitter and the numerical digit of triode Qzx select output line Wei Xuan z to be connected, the collector of triode Qzx is parallel with three light source group DR, DG, DB, three light source group DR, DG, DB respectively with corresponding basic colors control line Rin, Gin, Bin is connected, light source group DR comprises the LED light source DzxRn that more than one negative electrode is connected with the collector of triode Qzx, light source group DG comprises the LED light source DzxGn that more than one negative electrode is connected with the collector of triode Qzx, light source group DB comprises the LED light source DzxBn that more than one negative electrode is connected with the collector of triode Qzx, and n is the numbering of LED light source corresponding number, the anode of LED light source DzxRn is connected with the port of basic colors control line Rin by resistance RRn, the anode of LED light source DzxGn is connected with the port of basic colors control line Gin by resistance RGn, and the anode of LED light source DzxBn is connected with the port of basic colors control line Bin by resistance RBn.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762085.2U CN204257173U (en) | 2013-12-06 | 2014-12-06 | Colored segment code type digital tube display device |
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| CN201320800717 | 2013-12-06 | ||
| CN2013208007175 | 2013-12-06 | ||
| CN201420762085.2U CN204257173U (en) | 2013-12-06 | 2014-12-06 | Colored segment code type digital tube display device |
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| CN204257173U true CN204257173U (en) | 2015-04-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754747A (en) * | 2017-11-01 | 2019-05-14 | 无锡华润矽科微电子有限公司 | Integrated LED drive circuit structure and corresponding LED display system |
| CN111694309A (en) * | 2020-06-18 | 2020-09-22 | 中国科学技术大学 | Method for realizing FPGA (field programmable Gate array) online platform |
-
2014
- 2014-12-06 CN CN201420762085.2U patent/CN204257173U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754747A (en) * | 2017-11-01 | 2019-05-14 | 无锡华润矽科微电子有限公司 | Integrated LED drive circuit structure and corresponding LED display system |
| CN109754747B (en) * | 2017-11-01 | 2023-09-19 | 华润微集成电路(无锡)有限公司 | Integrated LED driving circuit structure and corresponding LED display system |
| CN111694309A (en) * | 2020-06-18 | 2020-09-22 | 中国科学技术大学 | Method for realizing FPGA (field programmable Gate array) online platform |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151206 |
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| EXPY | Termination of patent right or utility model |