CN1094680C - Serial-type nixie decoder circuit - Google Patents
Serial-type nixie decoder circuit Download PDFInfo
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- CN1094680C CN1094680C CN98111483A CN98111483A CN1094680C CN 1094680 C CN1094680 C CN 1094680C CN 98111483 A CN98111483 A CN 98111483A CN 98111483 A CN98111483 A CN 98111483A CN 1094680 C CN1094680 C CN 1094680C
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Abstract
The present invention discloses a tandem type nixie tube decoding circuit which is composed of seven sections of nixie tubes and switching control devices, wherein the seven sections of nixie tubes are connected in series; a section or a plurality of sections of nixie tubes are all connected in parallel with the corresponding switching control devices. The decoding mode can be manually decoding, and can also be integrated circuit decoding. Because the seven sections of nixie tubes are connected in series, the present invention can be directly driven by a high voltage. Thus, the present invention simplifies a needed power supply circuit and is favorable to reducing the cost of various extension products. The reliability of the present invention is enhanced, and the decoding mode is flexible and various.
Description
The numeral that the present invention relates to a kind of charactron shows decoding circuit, and especially a kind of numeral of seven segment digital tubes shows decoding circuit.
Current electronic age, the application of seven segment digital tubes and extensive.The seven segment digital tubes that can see at present all is common cloudy type or is total to positive type parallel connection mode that promptly each display segment of seven segment digital tubes is all through control corresponding decoding circuit and power supply parallel connection.The disclosed seven segment digital tubes connecting mode of Chinese invention patent application " nixie display of no decoder " that for example application number is 91103203.7, publication number is CN1066138A is parallel connection.The Chinese invention patent application " a kind of dual-colour digital code and drive system thereof " that application number is 93107789.3, publication number is CN1082229A though the light-emitting component coupled in series in every section of the disclosed seven segment digital tubes, seven sections connections each other remain in parallel.For parallel seven segment digital tubes, can only promptly adopt so-called segmentation interpretation method to every section decoding respectively.For example Figure 1 shows that a kind of segmentation decoding circuit of charactron in parallel, each switch all will by one group independently diode could realize the encoded control of " 0-9 " ten numerals.Its shortcoming is that decoded mode is few, is not easy to simplify, and can't directly adopt higher supply voltage.Show the directly appearance of the charactron application of usefulness higher voltage drives of needs such as doorplate along with light, above-mentioned prior art can be more and more outstanding because of problems such as the comparatively complicated cost height that produces of power circuit, poor reliability.
For this reason, main purpose of the present invention is: at the deficiency that above-mentioned existing parallel charactron and decoding circuit thereof exist, propose that a kind of power circuit is simple, the decoding circuit of the serial-type nixie that can directly drive with high voltage.
One of further aim of the present invention is: provide a kind of tandem seven segment digital tubes decoding circuit.The series sequence of seven segment digital tubes should make decimal decoding circuit comparatively succinct in this circuit, is applicable to manual decoding mode, can reduce cost, and improves reliability.
Two of further aim of the present invention is: provide a kind of tandem seven segment digital tubes decoding circuit, this circuit can both be deciphered various systems commonly used, is applicable to digital circuit.
In order to reach main purpose of the present invention, serial-type nixie decoder circuit of the present invention is made up of seven segment digital tubes and on-off controller spare, coupled in series between described each section of seven segment digital tubes, and one section or plurality of sections charactron are in parallel with corresponding on-off controller spare.During use, on-off controller spare can and lead to each section charactron of controlling series connection by the disconnected of himself and show or do not show, thereby makes seven segment digital tubes show various numbers as required, realizes decoding function.Because therefore mutual coupled in series can directly use higher voltage drives between each section of seven segment digital tubes, has so just simplified required power circuit, helps reducing the cost of various extension products, improves its reliability.
Through analyzing more repeatedly, make decimal decoding circuit obtain simplifying, should be when showing numeral the high charactron of frequency of utilization be arranged in the head and the tail of series sequence, like this can be with the more relatively digital section of less on-off controller spare control, thus make the decoding circuit simplification.Therefore, in order to reach one of further aim of the present invention, when seven segment digital tubes during by the composition figure of eight shown in Figure 2, the order of its series connection should guarantee that upper right section b and bottom right section c that frequency of utilization is the highest have one section head or tail that comes the series connection charactron at least.In the case, can realize that with nine on-off controller spare controls the series connection seven segment digital tubes shows " 0-9 " ten Arabic numerals at least, wherein two numerals show with two on-off controller spare controls respectively, all the other numerals show with an on-off controller spare control respectively, can make decimal decoding circuit comparatively succinct like this, cost is lower, and reliability is higher.For example resemble and connect Fig. 3.Represent with 1,2,3,4,5,6,7,8 respectively between c and the ground at this moment, between resistance R and a, between a and the d, between d and the e, between e and the f, between f and the g, between g and the b, between b and the c.Corresponding to the switching signal of digital " 0 ", on-off controller spare makes 5,6 point-to-point transmission short circuits, and promptly seven segment digital tubes interlude g is by short circuit; Corresponding to the switching signal of numeral " 1 ", on-off controller spare makes 1,6 point-to-point transmission short circuits, promptly above the seven segment digital tubes, following, lower-left, upper left, interlude a, d, e, f, g be by short circuit; Corresponding to the switching signal of numeral " 2 ", on-off controller spare makes short circuit between 4,5 and 7,8 respectively, and promptly upper left section f of seven segment digital tubes and bottom right section c are by short circuit; Corresponding to the switching signal of numeral " 3 ", on-off controller spare makes 3,5 point-to-point transmission short circuits, and promptly seven segment digital tubes lower-left, upper left section e, f are by short circuit; Corresponding to the switching signal of numeral " 4 ", on-off controller spare makes 1,4 point-to-point transmission short circuits, promptly above the seven segment digital tubes, following, lower-left section a, d, e be by short circuit; Corresponding to the switching signal of numeral " 5 ", on-off controller spare part makes short circuit between 3,4 and 6,7 respectively, and promptly seven segment digital tubes lower-left and upper right section e and b are by short circuit; Corresponding to the switching signal of numeral " 6 ", on-off controller spare makes 6,7 point-to-point transmission short circuits, and promptly upper right section b of seven segment digital tubes is by short circuit; Corresponding to the switching signal of numeral " 7 ", on-off controller spare makes 2,6 point-to-point transmission short circuits, promptly below the seven segment digital tubes, lower-left, upper left, interlude d, e, f, g be by short circuit; Corresponding to the signal of numeral " 8 ", each light-emitting component that does not make seven segment digital tubes is by short circuit; Corresponding to the switching signal of numeral " 9 ", on-off controller spare makes 3,4 point-to-point transmission short circuits, and promptly seven segment digital tubes lower-left section e is by short circuit.Like this, after the energising of series connection seven segment digital tubes, during the switching signal of a certain numeral of input representative, just can make charactron show corresponding digital by above-mentioned interpretation method.
In order to reach two of further aim of the present invention, at least seven active on-off controller spares are connected in parallel on respectively on the correspondent section of tandem seven segment digital tubes, its control end connects with corresponding decoder ic.By control of combination break-make or the control of sequential break-make, just can realize the decoding of various systems commonly used, and be applicable to various digital circuits like this active on-off controller spare.
The invention will be further described below in conjunction with embodiment.
Fig. 1 is existing parallel charactron circuit diagram.
Fig. 2 is the seven segment digital tubes schematic diagram of arranging.
Fig. 3 is charactron device series circuit figure.
Fig. 4 is the circuit diagram of first embodiment of the present invention.
Fig. 5 is the circuit diagram of second embodiment of the present invention.
Fig. 6 is the circuit diagram of the 3rd embodiment of the present invention.
Fig. 7 is the circuit diagram of the 4th embodiment of the present invention.
Serial-type nixie decoder circuit shown in Figure 4 is mainly formed by seven segment digital tubes with as eight single-pole single-throw switch (SPST)s or the short-circuit line of break-make control piece, power supply by current-limiting resistance R through upper right section b, bottom right section c, upper left section f, lower-left section e, below section d, above section a, the interlude g ground connection of connecting, between resistance R and the upper right section b, between interlude g and the ground and all draw lead between each section, connect disconnected control piece respectively, wherein 7,8 the short circuit control lines of drawing in interlude g two ends connect corresponding to " 0 " switch 0 '; Before upper left section f after 3 and the interlude g 8 d leads of drawing connect switch 1 ' corresponding to " 1 "; 4 leads of drawing after before the section c of bottom right 2 and the upper left section f connect the switch 2 ' corresponding to " 2 "; Before upper left section f after 3 and the lower-left section e 5 leads of drawing connect switch 3 ' corresponding to " 3 "; Before the section e of lower-left after 4 and the top section a 7 leads of drawing connect switch 4 ' corresponding to " 4 "; 1,2 at upper right section b two ends and 4,5 leads of drawing in section e two ends, lower-left connect two switches 5 (1) corresponding to " 5 " ', 5 (2) '; 1,2 leads of drawing in upper right section b two ends connect the switch 6 ' corresponding to " 6 "; 6 leads of drawing connect the switch 7 ' corresponding to " 7 " respectively after 3 points before 7,8 and the upper left section f in interlude g two ends, the following section d; Numeral " 8 " need not lead and switch; 4,5 leads of drawing in section e two ends, lower-left connect the switch 9 ' corresponding to " 9 ", in eight switches, 0 '/7 ' (1), 6 '/5 (1) ' be three multiplex switch, 9 '/5 (2) ', like this, after the seven segment digital tubes energising, by the break-make of control figure switch, can show " 0-9 " each Arabic numerals as required, circuit is simple and reliable.Short-circuit line is identical with the effect of switch, does not give unnecessary details in addition.
Seven segment digital tubes series sequence in the serial-type nixie decoder circuit shown in Figure 5 is identical with Fig. 3, its on-off controller spare is 1 '-8 ' eight jack and two standard connectors, eight jacks correspondence respectively are connected on the seven segment digital tubes 1-8 point, and each adjacent jack spacing equates.Can as required the standard connector be inserted between the corresponding jack during use, make short circuit between 7 ', the 8 ' point respectively, promptly seven segment digital tubes interlude g is shown " 0 " by short circuit; Make 3 ', short circuit between the 8 ' point, promptly above the seven segment digital tubes, following, lower-left, upper left, interlude a, d, e, f, g be by short circuit, show " 1 "; Make short circuit between 2 ', the 4 ' point, promptly seven segment digital tubes bottom right section c and upper left section f are shown " 2 " by short circuit; Make short circuit between 3 ', the 5 ' point, promptly upper left section e of seven segment digital tubes and upper left section f are shown " 3 " by short circuit; Make 4 ', short circuit between the 7 ' point, promptly above the seven segment digital tubes, following, lower-left section a, d, e be by short circuit, show " 4 "; Make short circuit between 1 ', 2 ' and 4 ', the 5 ' point respectively, promptly upper right section b of seven segment digital tubes and lower-left section e are shown " 5 " by short circuit; Make short circuit between 1 ', the 2 ' point, promptly upper right section b of seven segment digital tubes shown " 6 " by short circuit; Make 3 ' respectively, short circuit between 6 ' and 7 ', the 8 ' point, promptly below the seven segment numerical section, lower-left, upper left, interlude d, e, f, g be by short circuit, show " 7 "; Each charactron of not short circuit seven segment digital tubes shows " 8 "; Make short circuit between 4 ', the 5 ' point, promptly section e in seven segment digital tubes lower-left is shown " 9 " by short circuit.This serial-type nixie decoder circuit is applicable to needs to produce in batches and require the fixing different digital occasions that show, for example light shows doorplate etc.
Fig. 6 embodiment is as active on-off controller spare with seven NPN triode Q8-Q14, the collector and emitter of Q8-Q14 connects with the both positive and negative polarity of every section light-emitting diode of tandem seven segment digital tubes a-g respectively, the base stage one tunnel of Q8-Q14 connects with+18V voltage by resistance R 15-R21 respectively, another road links by the collector electrode of resistance R 8-R14 and NPN triode Q1-Q7 respectively, the base stage of Q1-Q7 respectively the IC1 by current-limiting resistance R1-R7 and integrated circuit 13,12,11,10,9,15,14 pin link, the grounded emitter of Q1-Q7, + 18V voltage connects the drain electrode of Q15 field effect transistor, this pipe source electrode connects tandem seven segment digital tubes anode, be connected to resistance R 22 between grid and the source electrode, be connected to voltage stabilizing didoe D1 between the negative terminal of tandem seven segment digital tubes and the ground, filter capacitor C1,16 pin of C2 and integrated circuit (IC) 1 and 8 pin, 3 of IC1,4 pin connect high level 16 pin, 5 pin of IC1 meet low level 8 pin, 7 of IC1,1,2,6 pin connect digital circuit.The effect of field effect transistor Q15 is to provide continuous current for the tandem seven segment digital tubes, this constant current is behind charactron, by D1 voltage stabilizing, C1, C2 filtering, form burning voltage for IC1 work at the two ends of D1, because the power consumption of IC1 is more much smaller than charactron, therefore can connect a shared power supply mutually.The course of work of this circuit is as follows: IC1 is a decoder ic, 7,1,2,6 pin are binary system 8421BCD sign indicating number input, with 13 pin is example, when this pin is high level, make Q1 be in the high level conducting by R1 because of base stage, the current collection of Q1 is low level very, dividing potential drop by R8 and R15, make the base stage of Q8 be in low level, Q8 ends, therefore the collector and emitter not conducting of loop of Q8, the electric current that flows out from upper right section b of seven segment digital tubes makes the top section luminous demonstration of a all by top section a.Otherwise when 13 pin were low level, Q1 ended, the Q8 conducting, above section a not luminous demonstration.The decoding conversion regime of other each section can be analogized.Therefore, also can realize the encoded control of serial-type nixie decoder circuit, thereby make the decoder ic of original parallel seven segment digital tubes can prolong the decoding that is used for the tandem seven segment digital tubes by decoder ic CD4511.
Seven segment digital tubes series sequence in the serial-type nixie decoder circuit shown in Figure 7 is identical with Fig. 3.As active on-off controller spare, the collector and emitter of Q1-Q8 is connected in parallel on before seven segment digital tubes interlude g two ends 7,8 points of series connection, the upper left section f before 8 points after and the interlude g, the bottom right section c before 4 points after and the upper left section f, the upper left section f before 5 points after and the lower-left section e, the lower-left section e before 7 points after and the top section a, upper right section b two ends 1,2 point, the upper left section f 6 points after and the following section d, section e two ends, lower-left 4,5 points successively at 3 at 2 at 3 at 4 at 3 by eight NPN triodes of Q1-Q8.IC1 is the integrated circuit CD4017 of counter, and 2,4,7,10 pin connect the base stage of Q2-Q5 respectively by R2-R5; 3,6 pin connect the positive pole of diode D1, D5 respectively, meet R1 after negative pole links, the base stage of another termination of R1 Q1; 6 pin also link through the base stage of R7 and Q7; 1 pin one tunnel and 11 pin connect the positive pole of D2, D6 respectively, meet R8 after negative pole links, the base stage of another termination of R8 Q8; Another road of 1 pin and 5 pin connect the positive pole of D3, D4 respectively, meet R6 after negative pole links, the base stage of another termination of R6 Q6.Pulse switch K1 be connected in IC1 14 pin and+15V voltage between, resistance R 10, capacitor C 1 are connected in parallel between 14 pin and ground of IC1, the negative terminal of charactron, be the equal ground connection of 8,13,15 pin of 8 and IC1 after the interlude g, 12 pin are the carry end, can connect other digital circuit.+ 15V voltage one tunnel connects 16 pin of IC1, and another road connects the drain electrode of field effect transistor Q9, source electrode connect charactron anode, be 1 point before the upper right section b, be connected to resistance R 9 between the grid of Q9 and the source electrode.+ 15V voltage produces constant current through Q9, for serial-type nixie provides stabling current.The course of work of decoding circuit is as follows: 14 pin of IC1 are the counter input, whenever press K switch 1 one time, just count number one time, and with 3,2,4,7,10,1,5,6,9,11 pin are changed to high level successively, wherein 3,2,4,7,10,1,5,6,11 pin pass through D1-D6 respectively, R1-R8 is successively with Q1, Q2, Q3, Q4, Q5, Q6 and Q8, Q6, Q1 and Q7, Q8 is changed to high level, make it become conducting by shutoff, the electric current of corresponding digital section is flowed out through transistor collector and emitter, these digital sections are not shown, 9 pin of IC1 are vacant, all not conductings of Q1-Q8 when it is high level, show numeral " 8 ", thereby show the number of " 0-9 " successively, finish decode procedure.To the different connections of IC1 reset terminal 15 pin, can set other system.This decoding circuit is applicable to the occasion of sequential counting, as clock and watch etc.
Claims (5)
1. a serial-type nixie decoder circuit is made up of seven segment digital tubes and on-off controller spare, it is characterized in that: coupled in series between described each section of seven segment digital tubes, one section or plurality of sections charactron are in parallel with corresponding on-off controller spare.
2. serial-type nixie decoder circuit as claimed in claim 1 is characterized in that: the order of described seven segment digital tubes series connection should guarantee that upper right section of seven segment digital tubes and bottom right section have one section head or tail that comes the series connection charactron at least.
3. serial-type nixie decoder circuit as claimed in claim 1 is characterized in that: described on-off controller spare is at least eight single-pole single-throw switch (SPST)s or short-circuit line, and these switches or short-circuit line go between respectively and be connected on the seven segment digital tubes, and be in parallel with seven segment digital tubes.
4. serial-type nixie decoder circuit as claimed in claim 1, it is characterized in that: described on-off controller spare is at least eight jacks and at least two standard connectors, each jack goes between respectively and is connected on the seven segment digital tubes of series connection, in parallel with seven segment digital tubes, described connector insert as required and the corresponding jack of needed number between.
5. serial-type nixie decoder circuit as claimed in claim 1 is characterized in that: described on-off controller spare is connected in parallel on respectively on the correspondent section of tandem seven segment digital tubes at least seven active on-off controller spares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111483A CN1094680C (en) | 1998-09-03 | 1998-09-03 | Serial-type nixie decoder circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111483A CN1094680C (en) | 1998-09-03 | 1998-09-03 | Serial-type nixie decoder circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1212525A CN1212525A (en) | 1999-03-31 |
| CN1094680C true CN1094680C (en) | 2002-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111483A Expired - Fee Related CN1094680C (en) | 1998-09-03 | 1998-09-03 | Serial-type nixie decoder circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105182225A (en) * | 2012-07-27 | 2015-12-23 | 胡小青 | Electric-leakage circuit breaker tester with indicating lamp circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066138A (en) * | 1991-04-20 | 1992-11-11 | 谢燕颉 | The nixie display of no code translator |
| CN2149663Y (en) * | 1993-02-08 | 1993-12-15 | 周凯林 | Traffic controlling signal arrangement |
| CN1082229A (en) * | 1993-07-08 | 1994-02-16 | 张凤良 | A kind of dual-colour digital code and drive system thereof |
-
1998
- 1998-09-03 CN CN98111483A patent/CN1094680C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066138A (en) * | 1991-04-20 | 1992-11-11 | 谢燕颉 | The nixie display of no code translator |
| CN2149663Y (en) * | 1993-02-08 | 1993-12-15 | 周凯林 | Traffic controlling signal arrangement |
| CN1082229A (en) * | 1993-07-08 | 1994-02-16 | 张凤良 | A kind of dual-colour digital code and drive system thereof |
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| CN1212525A (en) | 1999-03-31 |
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