CN1103483C - Dual-colour digital code and its drive system - Google Patents
Dual-colour digital code and its drive system Download PDFInfo
- Publication number
- CN1103483C CN1103483C CN93107789A CN93107789A CN1103483C CN 1103483 C CN1103483 C CN 1103483C CN 93107789 A CN93107789 A CN 93107789A CN 93107789 A CN93107789 A CN 93107789A CN 1103483 C CN1103483 C CN 1103483C
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- led
- high level
- dual
- low level
- input end
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- Expired - Fee Related
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention relates to a dual-color digital code and a drive system thereof, which belongs to color change digital display and driving thereof. Dual-color LED of each section of dual-color seven-section digitals is composed of two end type dual-color LED, and a serial connection (forward and reverse) mode is adopted for driving. A driving system is composed of a two-way power source generating circuit and a dual-color seven-section digital driving circuit. Thus, the seven-section digitals are alternatively displayed with green and red colors according to a certain program. The present invention has the advantages of simple structure, low power consumption, strong autokinetic effect, beauty and conspicuity. The present invention can be used for large display devices, such as digital electronic clocks, train number display device and reaching and leaving time display device of stops, securities trading display device, etc. The visual effect is enhanced, and the environment is beautified.
Description
Technical field
The present invention relates to a kind of drive system of nixie display of colour changeable
Background technology
The at present electronic clock that uses in public places, train number and to the luminous display unit of/types such as ETAD expected time of arrival and departure, all adopt light emitting diode to form digital display device, every seven segment numerical in the device is to be made of common or highlighted type light emitting diode, and color immobilizes.And in securities trading market the double-colored seven segment numerical in the securities information display screen, then constitute with trifocal (common cathode) dual-colored LED, every section dual-colored LED in the seven segment numerical that this trifocal dual-colored LED constitutes needs parallel way to drive, so complex structure, power consumption is big.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of drive system of dual-colour digital code display simple in structure, low in energy consumption is provided.
The drive system of dual-colour digital code display of the present invention is achieved by following technical proposals:
The drive system of dual-colour digital code display of the present invention is that the drive system of this dual-colour digital code display produces circuit by bi-directional power and double-colored seven segment numerical driving circuit constitutes, described bi-directional power produces circuit and is made of Schmidt trigger and two-way integrated power switch, with Schmidt trigger (YF
1) the input end parallel connection use (YF as reverser
2), (YF
3) output terminal control integrated power switch (IC respectively
1) and (IC
2), (YF in Schmidt trigger
1) when being input as high level, its output terminal is a low level, (YF
2) be output as high level, (YF
3) be output as low level, this moment integrated power switch (IC
1) and (IC
2) control end be respectively high level and low level, so produce the output terminal of circuit: E in bi-directional power
1=12V, E
2=0; Otherwise, (YF
1) input end when being low level, its output terminal is a high level, (YF
2) be output as low level, (YF
3) be output as high level, this moment integrated power switch (IC
1) and (IC
2) control end be respectively low level and high level, so produce the output terminal of circuit: E in bi-directional power
1=0, E
2=12V.Double-colored seven segment numerical driving circuit is made of phase inverter, bi-directional drive switch, isolation diode, dichromatic LED and current-limiting resistance, when the inverted triode input end is high level, and bi-directional power E
1=12V, E
2=0 o'clock, (K
1) closure, (K
2) disconnect isolating diode (D
1) be in positively biased, (D
2) be in instead partially, this moment, the flow direction of drive current was (E
1) → (D
1) → (R
1) → (LED
1) → (LED
5) → (R
2) → (K
1) → (BG
1) collector, double color luminotron (LED
1)～(LED
5) be green; When the inverted triode input end is low level, bi-directional power E
1=12V, E
2=0 o'clock, double color luminotron (LED
1)～(LED
5) not luminous; When the inverted triode input end is high level, bi-directional power E
1=0, E
2During=12V, (K
1) disconnect (K
2) closure, isolating diode D
1Be in instead partially D
2Be in positively biased, this moment, the flow direction of drive current was (E
2) → (D
2) → (R
2) → (LED
5) → (LED
1) → (R
1) → (K
2) → (BG
1) collector, double color luminotron (LED
1)～(LED
5) be red; When the inverted triode input end is a low level, bi-directional power E
1=0, E
2During=12V, double color luminotron (LED
1)～(LED
5) not luminous.
The present invention has adopted the integrated power switch owing to produce in the circuit in bi-directional power, therefore beneficial effect of the present invention:
1. simple in structure, low in energy consumption.
2. working stability is reliable, non-jitter during switching.
Description of drawings
Fig. 1 is the drive system block scheme of dual-colour digital code display.
Fig. 2, Fig. 3 are the circuit theory diagrams of the embodiment of the invention.
Among the figure: 1---Schmidt trigger, 2---two-way integrated power switch, 3---the bi-directional drive switch, 4---isolating diode, 5---gun stocks, 6---double color luminotron.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.Bi-directional power of the present invention produces the electrical schematic diagram of embodiment of circuit shown in Fig. 2, and it is made of Schmidt trigger and two-way integrated power switch.YF in Schmidt trigger
1The input end parallel connection use YF as reverser
2, YF
3Output terminal control integrated power switch I C respectively
1(TWH8778), IC
2(TWH8778).When the control end of integrated power switch TWH8778 was high level, switch was inner closed, and TWH8778 output terminal (2,3 pin) output high level is when the control end of TWH8778 is low level; Switch is inner to be disconnected, and its output terminal is a low level.Therefore, as the YF of Schmidt trigger
1When being input as high level, its output terminal is a low level, is output as high level, YF
3Be output as low level, at this moment integrated power switch I C
1, IC
2Control end be respectively high level and low level.So, at the output terminal of bi-directional power generation circuit: E
1=12V, E
2=0, otherwise, YF
1Input end when being low level, its output terminal is a high level, YF
2Be output as low level, YF
3Be output as high level, at the output terminal of bi-directional power generation circuit, E
1=0, E
2=12V.
Fig. 3 is the electrical schematic diagram of double-colored seven segment numerical driving circuit embodiment of the present invention, and by phase inverter (triode), bi-directional drive switch, isolating diode, dichromatic LED and current-limiting resistance have constituted double-colored seven segment numerical and driving circuit.When the inverted triode input end (base stage) as phase inverter was high level (saturation conduction), output terminal (collector) was a low level, and when the inverted triode input end be low level when (ending), output terminal is a high level.Now the course of work with regard to f section in the double-colored seven segment numerical among the figure elaborates:
(1) when the inverted triode input end be high level (saturation conduction), bi-directional power E
1=12V, E
2=0 o'clock, K
1Closure, K
2Disconnect isolating diode D
1Be in positively biased, D
2Be in instead partially, this moment, drive current was by E
1→ D
1→ R
1→ LED
1→ LED
5→ R
2→ K
1→ BG
1Collector, double color luminotron LED
1～LED
5(the f section of seven segment numerical) is green (red cut-off).
(2) when the inverted triode input end be low level (ending) bi-directional power E
1=12V, E
2=0 o'clock, double color luminotron was not luminous.
(3) when the inverted triode input end be the high level saturation conduction), bi-directional power E
1=0 E
2=12V, K
1Disconnect K
2Closure, isolating diode D
1Be in instead partially D
2Be in positively biased, this moment, drive current was by E
2→ D
2→ R → LED
5→ LED
1→ R
1→ K
2→ BG
2Collector, double color luminotron LED
1～LED
5(the f section of seven segment numerical) is red (green ending)
(4) when the inverted triode input end be low level (ending), E
1=0, E
2During=12V, double color luminotron LED～LED
5Not luminous.
Double-colored seven segment numerical used in the present invention, owing to adopted each other oppositely two ends formula dichromatic LED, in the seven segment numerical every section is in series by 5 dichromatic LEDs, the double-colored seven segment numerical of being made up of 35 dichromatic LEDs.Because phase inverter and drive circuit in bi-directional input end are that high level is effective, like this when the inverted triode input high level, and the Schmidt trigger input end is high level or low level, and bi-directional power produces the corresponding output of circuit E
1=12V, E
2=0 or E
1=0, E
2=12V, double-colored seven segment numerical corresponds to green or redness.Therefore when the Schmidt trigger input end is pressed certain program supplied with digital signal " 1 " or " 0 " (high level or low level), just can be formed on the seven segment numerical of same position with double-colored (green or red) Alternation Display corresponding digital.It is strong to have innervation, eye-catching characteristics attractive in appearance.
The drive system of dual-colour digital code display of the present invention, can be applied to the giant-screen digital electronic clock, the train number at station reaches/opens constantly and shows, various large-scale numerals such as the stock information of securities trading market show and decorative system, can improve visual effect and the effect of beautifying the environment.
Claims (1)
1. the drive system of a dual-colour digital code display, the drive system that it is characterized in that this dual-colour digital code display is made of bi-directional power generation circuit and double-colored seven segment numerical driving circuit, described bi-directional power produces circuit and is made of Schmidt trigger and two-way integrated power switch, with (YF in the Schmidt trigger
1) the input end parallel connection use (YF as reverser
2), (YF
3) output terminal control integrated power switch (IC respectively
1) and (IC
2), (YF in Schmidt trigger
1) when being input as high level, its output terminal is a low level, (YF
2) be output as high level, (YF
3) be output as low level, this moment integrated power switch (IC
1) and (IC
2) control end be respectively high level and low level, so produce the output terminal of circuit: E in bi-directional power
1=12V, E
2=0; Otherwise, (YF
1) input end when being low level, its output terminal is a high level, (YF
2) be output as low level, (YF
3) be output as high level, this moment integrated power switch (IC
1) and (IC
2) control end be respectively low level and high level, so produce the output terminal of circuit: E in bi-directional power
1=0, E
2=12V; Double-colored seven segment numerical driving circuit is made of phase inverter, bi-directional drive switch, isolation diode, dichromatic LED and current-limiting resistance, when the inverted triode input end is high level, and bi-directional power E
1=12V, E
2=0 o'clock, (K
1) closure, (K
2) disconnect isolating diode (D
1) be in positively biased, (D
2) be in instead partially, this moment, the flow direction of drive current was (E
1) → (D
1) → (R
1) → (LED
1) → (LED
5) → (R
2) → (K
1) → (BG
1) collector, double color luminotron (LED
1)～(LED
5) be green; When the inverted triode input end is low level, bi-directional power E
1=12V, E
2=0 o'clock, double color luminotron (LED
1)～(LED
5) not luminous; When the inverted triode input end is high level, bi-directional power E
1=0, E
2During=12V, K
1Disconnect K
2Closure, isolating diode D
1Be in instead partially D
2Be in positively biased, this moment, the flow direction of drive current was (E
2) → (D
2) → (R
2) → (LED
5) → (LED
1) → (R
1) → (K
2) → (BG
1) collector, double color luminotron (LED
1)～(LED
5) be red; When the inverted triode input end is a low level, bi-directional power E
1=0, E
2During=12V, double color luminotron (LED
1)～(LED
5) not luminous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93107789A CN1103483C (en) | 1993-07-08 | 1993-07-08 | Dual-colour digital code and its drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93107789A CN1103483C (en) | 1993-07-08 | 1993-07-08 | Dual-colour digital code and its drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1082229A CN1082229A (en) | 1994-02-16 |
| CN1103483C true CN1103483C (en) | 2003-03-19 |
Family
ID=4986852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93107789A Expired - Fee Related CN1103483C (en) | 1993-07-08 | 1993-07-08 | Dual-colour digital code and its drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103483C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094680C (en) * | 1998-09-03 | 2002-11-20 | 王强 | Serial-type nixie decoder circuit |
| CN100437674C (en) * | 2005-03-22 | 2008-11-26 | 杭州华三通信技术有限公司 | Method and apparatus for realizing multi-meaning display by seven segment digital tubes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367471A (en) * | 1980-03-06 | 1983-01-04 | Licentia Patent-Verwaltungs Gmbh | Arrangement for actuating controllable diode elements |
| US4628303A (en) * | 1985-06-05 | 1986-12-09 | System Development Corporation | Visual monitor for electrical signals |
| JPH0210397A (en) * | 1988-06-29 | 1990-01-16 | Mitsubishi Electric Corp | 7-segment led display device |
| CN2112190U (en) * | 1991-07-27 | 1992-08-05 | 殷为民 | Simple electronic-control led display screen |
-
1993
- 1993-07-08 CN CN93107789A patent/CN1103483C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367471A (en) * | 1980-03-06 | 1983-01-04 | Licentia Patent-Verwaltungs Gmbh | Arrangement for actuating controllable diode elements |
| US4628303A (en) * | 1985-06-05 | 1986-12-09 | System Development Corporation | Visual monitor for electrical signals |
| JPH0210397A (en) * | 1988-06-29 | 1990-01-16 | Mitsubishi Electric Corp | 7-segment led display device |
| CN2112190U (en) * | 1991-07-27 | 1992-08-05 | 殷为民 | Simple electronic-control led display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1082229A (en) | 1994-02-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |