CN109326241A - Nixie tube display circuit and electric equipment - Google Patents
Nixie tube display circuit and electric equipment Download PDFInfo
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- CN109326241A CN109326241A CN201810814119.0A CN201810814119A CN109326241A CN 109326241 A CN109326241 A CN 109326241A CN 201810814119 A CN201810814119 A CN 201810814119A CN 109326241 A CN109326241 A CN 109326241A
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- pipe
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- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 229910002056 binary alloy Inorganic materials 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
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- 210000004209 hair Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
- G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
- G09G3/14—Semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Generation (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a nixie tube display circuit and electric equipment. The invention discloses a nixie tube display circuit, which comprises: a control unit and an n-bit nixie tube; wherein, the control unit includes: the I/O ports connected with any two section selection ends and the I/O ports connected with any two section selection ends respectively corresponding to any two section selection ends cannot be the same at the same time, the number m of the I/O ports of the control unit is less than q + n, wherein q is the maximum number of the light emitting diodes of each digit tube in the n digit tube. The invention realizes normal display of the n-bit digital tube and also reduces the number of I/O ports.
Description
Technical field
The present invention relates to charactron technical field more particularly to a kind of digital pipe display circuit and electrical equipments.
Background technique
Fig. 1 is the connection schematic diagram inside existing double figures code pipe, and Fig. 2 is the connection signal inside existing three Digital sums pipe
Figure, Fig. 3 are the connection schematic diagram inside existing group of four figures pipe.When existing electrical equipment needs to show more information,
Need to use the charactron of more multidigit.
In the prior art, it in order to enable multidigit nixie tube can normally be shown, needs to provide to multidigit nixie tube more
Drive input/output (I/O) mouth.For example, as shown in Figure 1, existing 2 bit digital display (8 section end SEG0-SEG7,2 piece choosings
End COM0-COM1) 10 I/O mouthfuls (I/O0-I/O9) drivings are usually needed altogether.As shown in Fig. 2, existing three Digital sums pipe (8 sections
Position end SEG0-SEG7,3 chip select terminal COM0-COM2) usually 11 I/O mouthfuls (I/O0-I/O10) is needed to drive altogether.Such as Fig. 3
Shown, existing group of four figures pipe (8 section end SEG0-SEG7,4 chip select terminal COM0-COM3) usually needs 12 I/O mouthfuls altogether
(I/O0-I/O11) it drives.And when increasing decoder driver and being driven, the complexity of hardware circuit is increased.
However, I/O mouthfuls of driving of occupancy are more or decoder driver either as the digit of charactron increases
Increase, all will lead to higher chip cost and packaging cost.
Summary of the invention
In order to solve the problems, such as at least one mentioned in background technique, the present invention provides a kind of digital pipe display circuit and use
Electric equipment reduces I/O mouthfuls of quantity, has saved chip cost on the basis of guaranteeing that n Digital sum pipe is normally shown, reduces
Power consumption.
In a first aspect, the present invention provides a kind of digital pipe display circuit, comprising: control unit and n Digital sum pipe；
It wherein, include: I/O mouthfuls of m input/output in described control unit, the Duan Xuanduan of the n Digital sum pipe is according to institute
P chip select terminal for stating n Digital sum pipe is divided into p group, p chip select terminal of the n Digital sum pipe respectively with m I/O mouthfuls of the portion
Point or all connections, every group of Duan Xuanduan of the n Digital sum pipe connect with m I/O mouthfuls of the part respectively, and with described
The I/O mouth of the I/O mouth and one group of Duan Xuanduan connection corresponding from the chip select terminal that select end to connect is different, any two Duan Xuanduan institute
The I/O mouth that the I/O mouth of connection and two chip select terminals corresponding with any two Duan Xuanduan are connect cannot be identical simultaneously, institute
The number m for stating the I/O mouth of control unit is less than q+n, wherein q is most luminous two of every charactron in the n Digital sum pipe
Pole pipe number, n, m, p, q are positive integer.
Optionally, described I/O mouthfuls of number m is greater than or equal to the number that most multistage in the p group Duan Xuanduan selects end.
Optionally, the number of each group Duan Xuanduan is all m-1 in the p group Duan Xuanduan.
Optionally, the product of the number m-1 of each group Duan Xuanduan is greater than in described I/O mouthfuls of the number m and p group Duan Xuanduan
Equal to the sum of light emitting diode in the n Digital sum pipe.
Optionally, from m it is I/O mouthful described in optional m-1 I/O mouthfuls respectively with the n Digital sum Guan Zhongyi group Duan Xuanduan
Connection, and every group of Duan Xuanduan is correspondingly connected in the n Digital sum pipe m-1 I/O mouthfuls are different.
Optionally, from m it is I/O mouthful described in select in addition to other than m-1 section selects end to connect in the n Digital sum pipe
I/O mouthfuls and the corresponding chip select terminal in end is selected to connect with the m-1 section.
Optionally, the circuit further include: m resistance；
Wherein, every group of Duan Xuanduan of the n Digital sum pipe passes through corresponding resistance and described m I/O mouthfuls respectively
Part connects.
Optionally, the anode of each light emitting diode corresponds respectively to described section and selects end, the n in the n Digital sum pipe
The cathode of each light emitting diode corresponds respectively to the chip select terminal in Digital sum pipe.
Optionally, the cathode of each light emitting diode corresponds respectively to described section and selects end, the n in the n Digital sum pipe
The anode of each light emitting diode corresponds respectively to the chip select terminal in Digital sum pipe.
Second aspect, the present invention provide a kind of electrical equipment, comprising: digital pipe display circuit as described in relation to the first aspect.
Digital pipe display circuit provided by the invention and electrical equipment, wherein digital pipe display circuit includes n Digital sum pipe
And control unit, any number in the digit and n Digital sum pipe of n Digital sum pipe is less than by the number m of the I/O mouth of control unit
The setting of the sum of the light emitting diode number of pipe and the Duan Xuanduan of n Digital sum pipe divide according to p chip select terminal of n Digital sum pipe
The p chip select terminal for p group, n Digital sum pipe is connect with m I/O mouthfuls of part respectively, every group of Duan Xuanduan difference of n Digital sum pipe
It is connect with some or all of m I/O mouthfuls, and the I/O mouth and every group Duan Xuan corresponding with chip select terminal of guarantee and chip select terminal connection
Hold the I/O mouth of connection different.In the present embodiment, it can not only be connect with Duan Xuanduan using same I/O mouthfuls, but also can be with chip select terminal
The mode of connection greatly reduces I/O mouthfuls of quantity, realizes the dynamic display of functional of n Digital sum pipe, is not only simple in structure reality
With stable and reliable working performance, the scope of application is relatively broad, makes full use of and saves port resource, also effectively reduce core
Piece cost and packaging cost.
Detailed description of the invention
It, below will be to embodiment or existing in order to clearly demonstrate the embodiment of the present invention or technical solution in the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments of embodiment, for those of ordinary skill in the art, without any creative labor, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the connection schematic diagram inside existing double figures code pipe；
Fig. 2 is the connection schematic diagram inside existing three Digital sums pipe；
Fig. 3 is the connection schematic diagram inside existing group of four figures pipe；
Fig. 4 is the structural schematic diagram of digital pipe display circuit provided by the invention；
Fig. 5 is the structural schematic diagram of digital pipe display circuit provided by the invention；
Fig. 6 is the connection schematic diagram inside double figures code pipe provided by the invention；
Fig. 7 is the connection schematic diagram inside three Digital sums pipe provided by the invention；
Fig. 8 is the connection schematic diagram inside group of four figures pipe provided by the invention；
Fig. 9 is the structural schematic diagram of electrical equipment provided by the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment in the embodiment of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to implementation of the present invention
The range of example protection.
Fig. 4 is the structural schematic diagram of digital pipe display circuit provided by the invention, as shown in figure 4, the number of the present embodiment
Pipe display circuit 40 includes: control unit 41 and n Digital sum pipe 42.
It wherein, include: I/O mouthfuls of m input/output in control unit 41, the Duan Xuanduan of n Digital sum pipe 42 is according to n digit
P chip select terminal of code pipe 42 is divided into p group, and p chip select terminal of n Digital sum pipe 42 connects with some or all of m I/O mouthfuls respectively
Connect, every group of Duan Xuanduan of n Digital sum pipe 42 is connect with m I/O mouthfuls of part respectively, and the I/O mouth that is connect with chip select terminal and with
The I/O mouth of the corresponding one group of Duan Xuanduan connection of chip select terminal is different, the I/O mouth and and any two that any two Duan Xuanduan is connected
The I/O mouth that corresponding two chip select terminals of Duan Xuanduan are connected cannot simultaneously identical, the number m of the I/O mouth of control unit 41
Less than q+n, wherein q is most light emitting diode numbers of every charactron in n Digital sum pipe 42, and n, m, p, q are positive integer.
In the present embodiment, control unit 41 has a variety of ways of realization.Control unit 41 can be single-chip microcontroller, also can wrap
The modules such as micro-control unit (Microcontroller Unit, MCU) data-interface, data latches and key scan are included, this
Embodiment does not limit this, and need to only meet control unit 41 and provide m I/O mouthfuls.
Further, the I/O mouth number provided to multidigit nixie tube is needed to be equal to the position of n Digital sum pipe 42 in the prior art
The sum of 8) the at most number q (e.g., 7 or of light emitting diodes in number n and every charactron.In turn, in the present embodiment, if n Digital sum
I/O required for pipe 42 mouthfuls of number m is less than q+n, can reduce by I/O mouthfuls of number, saves port resource.
For example, 41 need of control unit mention if the light emitting diode number of every charactron is all 8 in three Digital sum pipes
For 3+8=11 I/O mouthfuls；If the light emitting diode number of every charactron is followed successively by 7,8,8 in three Digital sum pipes, list is controlled
41, member need to provide 8=11 I/O mouthfuls of 3+ most light emitting diode numbers.
In the present embodiment, the Duan Xuanduan of n Digital sum pipe 42 can be divided according to the number p of the chip select terminal of n Digital sum pipe 42
For p group, wherein the number of every group of Duan Xuanduan may be the same or different, the present embodiment is not limited this.And every group of Duan Xuan
End is connect with m I/O mouthfuls of part respectively, so that can be corresponding with each group Duan Xuanduan there are I/O mouthfuls in m I/O mouthfuls
Chip select terminal connection, i.e., and chip select terminal connection I/O mouth and one group of Duan Xuanduan connection corresponding with chip select terminal I/O mouth it is different, this
Sample, p chip select terminal can be connect with some or all of m I/O mouthfuls respectively.
Further, be based on above content, above-mentioned setting not can guarantee there are one corresponding section of Light-Emitting Diode choosing
I/O and other corresponding section of any Light-Emitting Diodes of I/O and the chip select terminal connection of the company of end select end I/O even and chip select terminal connection
The all identical situation of I/O, therefore, the I/O mouth that also needs setting any two Duan Xuanduan to be connected and with any two Duan Xuanduan
The I/O mouth that corresponding two chip select terminals are connected cannot be identical simultaneously, controls multiple hairs simultaneously to avoid identical I/O mouthfuls
The situation of light diode, so that control unit 41 controls chip select terminal and corresponding with chip select terminal by different I/O mouths respectively
One group of Duan Xuanduan, to realize the display function of n Digital sum pipe 42.
In the present embodiment, control unit 41 control n Digital sum pipe 42 shown when, due to any chip select terminal with it is corresponding
The connection of I/O mouth, and the corresponding one group of Duan Xuanduan of chip select terminal respectively with corresponding remaining I/O mouthful connection, and I/O mouthfuls of number m
Less than q+n, therefore, control unit 41 can first determine the display content of n Digital sum pipe 42, then pass through one chip select terminal pair of control
The I/O mouth answered selectes Light-Emitting Diode corresponding to one group of Duan Xuanduan corresponding with chip select terminal, then control and the piece respectively
The I/O mouth that selects the corresponding one group of Duan Xuanduan in end to be separately connected gates the part in corresponding light emitting diode, to complete n
Distribute the display process of optical diode in the middle part of charactron 42.
Further, it for the next display content of n Digital sum pipe 42, can not be done herein according to the above process
Repeat so that the I/O mouth of control unit 41 can first pass through chip select terminal select light emitting diode, then by with chip select terminal pair
The one group of Duan Xuanduan answered gates corresponding light emitting diode, and n Digital sum pipe 42 is allowed to be normally carried out display.
For example, when the display content of n Digital sum pipe 42 is the Light-Emitting Diode all light in the first Digital sum pipe, if the
Four light-emitting nixie tubes in one digit number code pipe correspond respectively to chip select terminal 11 and one group Duan Xuanduan 01- corresponding with chip select terminal 11
04, remaining four light-emitting nixie tube corresponds respectively to chip select terminal 12 and one group Duan Xuanduan 05-08 corresponding with chip select terminal 12, then controls
Unit 41 processed can first determine that the corresponding I/O mouthfuls of 01-04 of one group of Duan Xuanduan 01-04 needs to export binary system " 1111 ", then control
The I/O mouth 05 that chip select terminal 11 is correspondingly connected with exports binary zero, then controls what one group of Duan Xuanduan 01-04 was correspondingly connected with respectively
I/O mouthfuls of 01-04 export binary system " 1111 ", can make four light-emitting nixie tube conductings.Similarly, control unit 41 can first really
The fixed corresponding I/O mouth 01,02,03,05 of one group of Duan Xuanduan 05-08 needs to export binary system " 1111 ", then to control chip select terminal 12 right
The I/O mouth 04 that should connect exports binary zero, then control respectively I/O mouth that one group of Duan Xuanduan 05-08 is correspondingly connected with 01,02,
03,05 output binary system " 1111 " can make remaining four light-emitting nixie tube conducting, to complete the first Digital sum Guan Zhongfa
The process that light diode is all lighted.
Further, since the lighting time of charactron is very short, and the visual persistence phenomenon of people and light emitting diode is remaining
Brightness effect, although actually in n Digital sum pipe 42 the corresponding transmission diode of every group of Duan Xuanduan and it is non-concurrent light, only need to protect
The speed for demonstrate,proving scanning is sufficiently fast, then the impression to people is exactly one group of stable display data, flickering is not had, to realize
The Dynamically Announce of n Digital sum pipe 42.And since the number m of the I/O of control unit 41 mouth is less than q+n, in the present embodiment
Digital pipe display circuit 40 can save a large amount of port I/O so that lower power consumption, save chip cost and packaging cost.
The digital pipe display circuit of the present embodiment, including n Digital sum pipe and control unit pass through the I/O mouth of control unit
Number m be less than the setting of the sum of the digit of n Digital sum pipe and light emitting diode number of any charactron in n Digital sum pipe,
And the Duan Xuanduan of n Digital sum pipe is divided into p group, the p chip select terminal difference of n Digital sum pipe according to p chip select terminal of n Digital sum pipe
It is connect with m I/O mouthfuls of part, every group of Duan Xuanduan of n Digital sum pipe is connect with some or all of m I/O mouthfuls respectively, and is protected
The I/O mouth of I/O mouth and every group of Duan Xuanduan connection corresponding with chip select terminal of card and chip select terminal connection is different.In the present embodiment, adopt
It can not only have been connect with Duan Xuanduan with same I/O mouthfuls, but also the mode that can be connect with chip select terminal, and greatly reduce I/O mouthfuls of number
Amount, realizes the dynamic display of functional of n Digital sum pipe, is not only simple in structure practical, stable and reliable working performance, the scope of application compared with
Be it is extensive, make full use of and save port resource, also effectively reduce chip cost and packaging cost.
On the basis of above-mentioned Fig. 4 embodiment, the specific structure that is included to the present embodiment digital pipe display circuit 40 into
Row is described in detail.Optionally, I/O mouthfuls of number m is greater than or equal to Duan Xuanduan number most in p group Duan Xuanduan.
In the prior art, the I/O mouth number provided needed for usual control unit 41 is equal to q+n, and the number etc. of chip select terminal
It is equal to most light emitting diodes of every charactron in n Digital sum pipe 42 in the number of the digit n, Duan Xuanduan of n Digital sum pipe 42
Number q.
In the present embodiment, the I/O mouth number m of the offer as needed for control unit 41 is less than q+n, and any chip select terminal is corresponding
I/O mouth can choose the I/O mouth other than the I/O mouth of the corresponding one group of Duan Xuanduan connection of itself chip select terminal, i.e., the I/O mouthfuls
Can be and each section of I/O for selecting end to have connection relationship mouth, or select the I/O mouth of the connectionless relationship in end therefore can with each section
Number m to be arranged I/O mouthfuls is greater than or equal to most multistage in p group Duan Xuanduan and selects end number.
Further, in order to more save I/O mouthfuls of quantity, optionally, in p group Duan Xuanduan the number of each group Duan Xuanduan is all
For m-1.Specifically, when the number of each group Duan Xuanduan in p group Duan Xuanduan is all m-1, due to the I/O mouth of the offer of control unit 41
Only m, so that only one I/O mouthfuls of chip select terminal corresponding with each group Duan Xuanduan is available, but also I/O mouthfuls of number m
It is more than or equal to the sum of light emitting diode in n Digital sum pipe 42 with the product of the number m-1 of each group Duan Xuanduan in p group Duan Xuanduan,
The number m that the I/O mouth that control unit 41 is provided to n Digital sum pipe 42 has been effectively ensured is minimum, be greatly saved port resource and
Chip cost.
Optionally, from m I/O mouthfuls optionally m-1 I/O mouthfuls connect respectively with one group of Duan Xuanduan in n Digital sum pipe 42, and
Every group of Duan Xuanduan is correspondingly connected in n Digital sum pipe 42 m-1 I/O mouthfuls are different.Optionally, from m I/O mouthfuls selection in addition to
I/O mouth except m-1 section selects end to connect in n Digital sum pipe 42 and end corresponding chip select terminal connection is selected with m-1 section.
In the present embodiment, since the number of every group of Duan Xuanduan in p group Duan Xuanduan is all m-1, can be from control unit 41
In m I/O mouthfuls in random selection m-1 I/O mouthful be correspondingly connected with respectively with one group of Duan Xuanduan in n Digital sum pipe 42, control singly
Remaining one I/O mouthfuls then chip select terminal connections corresponding with this group of Duan Xuanduan in member 41, while also needing to guarantee any two Duan Xuan
The I/O mouth for holding connected I/O mouth and two chip select terminals corresponding with any two Duan Xuanduan to be connect cannot same phase
Together, i.e., every group of Duan Xuanduan is different from m-1 I/O mouthfuls of connection type respectively, in this way, identical I/O mouthfuls can not control simultaneously it is more
A Light-Emitting Diode avoids the problem that a chip select terminal corresponds to multiple groups Duan Xuanduan, so as to realize the display of n Digital sum pipe 42
Function.
It further, can be according to by n when determining I/O mouthfuls of the number of number m and every group of Duan Xuanduan is m-1
The total number m-1 divided by each group Duan Xuanduan in p group Duan Xuanduan of light emitting diode, obtained quotient round up in charactron 42
The number p of the chip select terminal of available n Digital sum pipe 42, it is determined that each chip select terminal and each section select at end in n Digital sum pipe 42
Several and connection type, and under the premise of reducing by I/O mouthfuls of quantity, it ensure that the display function of n Digital sum pipe 42.
On the basis of above-mentioned Fig. 4 embodiment, in conjunction with Fig. 5 to the specific component of the present embodiment digital pipe display circuit 40
It is described in detail.
Optionally, as shown in figure 5, digital pipe display circuit 40 further include: m resistance 43.Wherein, n Digital sum pipe 42
Every group of Duan Xuanduan passes through corresponding resistance 43 respectively and connect with m I/O mouthfuls of part.
Specifically, in m I/O mouthfuls any I/O mouthfuls end is all selected with corresponding section in n Digital sum pipe 42 by a resistance 43
Connection, i.e., select end all to increase a resistance 43 at each section, play metering function, to guarantee each luminous two in n Digital sum pipe 42
The uniformity of brightness and the measurement of pole pipe.
Further, since the light emitting diode in charactron has two kinds of connections of common cathode and common-anode, below
Respectively from two kinds of connections of common cathode and common-anode to the specific structure of the n Digital sum pipe 42 of the present embodiment digital pipe display circuit 40
It is described in detail.
On the one hand, optionally, the anode of each light emitting diode corresponds respectively to Duan Xuanduan, n digit in n Digital sum pipe 42
The cathode of each light emitting diode corresponds respectively to chip select terminal in code pipe 42.
In the present embodiment, when each light emitting diode in n Digital sum pipe 42 selects the connection of common cathode, control unit 41 can
The Duan Xuanduan input high level of any light emitting diode into n Digital sum pipe 42 inputs low electricity to the chip select terminal of light emitting diode
It is flat, so that light emitting diode is lighted.
On the other hand, optionally, the cathode of each light emitting diode corresponds respectively to Duan Xuanduan in n Digital sum pipe 42, and n
The anode of each light emitting diode corresponds respectively to chip select terminal in charactron 42.
In the present embodiment, when each light emitting diode in n Digital sum pipe 42 selects the connection of common-anode, control unit 41 can
The Duan Xuanduan input low level of any light emitting diode into n Digital sum pipe 42 inputs high electricity to the chip select terminal of light emitting diode
It is flat, so that light emitting diode is lighted.
It will be understood by those skilled in the art that by seven bar-type light emitting diodes of a-g and a dot inside charactron
Light emitting diode composition, bright according to each light emitting diode are secretly combined into character.In the following, by Fig. 6-Fig. 8, to the present embodiment number
The setting of the chip select terminal and Duan Xuanduan of n Digital sum pipe 42 is described in detail in code pipe display circuit 40.Wherein, in Fig. 6-Fig. 8
All end is selected to connect with corresponding section in n Digital sum pipe 42 by a resistance with each I/O mouthfuls, and each in n Digital sum pipe 42
Light emitting diode is selected for the connection of common cathode, is illustrated.
Fig. 6 is the connection schematic diagram inside double figures code pipe provided by the invention, as shown in fig. 6, two in the present embodiment
Digital sum pipe includes 16 light emitting diodes, the 2 bit digital display in order to reduce port resource to the greatest extent, in the present embodiment
5 I/O mouthfuls (I/O0-I/O4) drivings are needed altogether, wherein there are 4 sections to select end in 4 chip select terminals COM0-COM3, four groups of Duan Xuanduan
SEG0-SEG3.Compared with 2 bit digital display existing in Fig. 1 needs 10 I/O mouthfuls, reduce 5 I/O mouthfuls.
Fig. 7 is the connection schematic diagram inside three Digital sums pipe provided by the invention, as shown in fig. 7, three in the present embodiment
Digital sum pipe includes 24 light emitting diodes, the three Digital sum pipes in order to reduce port resource to the greatest extent, in the present embodiment
6 I/O mouthfuls (I/O0-I/O5) drivings are needed altogether, wherein there are 5 sections to select end in 5 chip select terminals COM0-COM4, four groups of Duan Xuanduan
There are 4 sections to select end SEG0-SEG3 in SEG0-SEG4, one group of Duan Xuanduan.11 I/O mouthfuls are needed with three Digital sums pipe existing in Fig. 2
It compares, reduces 5 I/O mouthfuls.
Fig. 8 is the connection schematic diagram inside group of four figures pipe provided by the invention, as shown in figure 8, four in the present embodiment
Digital sum pipe includes 32 light emitting diodes, the group of four figures pipe in order to reduce port resource to the greatest extent, in the present embodiment
7 I/O mouthfuls (I/O0-I/O6) drivings are needed altogether, wherein there are 6 sections to select end in 6 chip select terminals COM0-COM5, five groups of Duan Xuanduan
There are 2 sections to select end SEG0-SEG1 in SEG0-SEG5, one group of Duan Xuanduan.12 I/O mouthfuls are needed with group of four figures pipe existing in Fig. 3
It compares, reduces 5 I/O mouthfuls.
It should be understood that n Digital sum pipe 42 can remove small origin light emitting diode according to the actual situation, so that n
The number of light emitting diode is reduced in charactron 42, to reduce the quantity that control unit 41 provides I/O mouthfuls, saves chip
Port resource reduces power consumption.
Fig. 9 is the structural schematic diagram of electrical equipment provided by the invention, as shown in figure 9, the electrical equipment 90 of the present embodiment
It include: digital display circuit 91；Wherein,
Digital pipe display circuit 91, comprising: control unit and n Digital sum pipe；
It wherein, include: I/O mouthfuls of m input/output in described control unit, the Duan Xuanduan of the n Digital sum pipe is according to institute
P chip select terminal for stating n Digital sum pipe is divided into p group, p chip select terminal of the n Digital sum pipe respectively with m I/O mouthfuls of the portion
Point or all connections, every group of Duan Xuanduan of the n Digital sum pipe connect with m I/O mouthfuls of the part respectively, and with described
The I/O mouth of the I/O mouth and one group of Duan Xuanduan connection corresponding from the chip select terminal that select end to connect is different, any two Duan Xuanduan institute
The I/O mouth that the I/O mouth of connection and two chip select terminals corresponding with any two Duan Xuanduan are connect cannot be identical simultaneously, institute
The number m for stating the I/O mouth of control unit is less than q+n, wherein q is most luminous two of every charactron in the n Digital sum pipe
Pole pipe number, n, m, p, q are positive integer.
Optionally, described I/O mouthfuls of number m is greater than or equal to the number that most multistage in the p group Duan Xuanduan selects end.
Optionally, the number of each group Duan Xuanduan is all m-1 in the p group Duan Xuanduan.
Optionally, the product of the number m-1 of each group Duan Xuanduan is greater than in described I/O mouthfuls of the number m and p group Duan Xuanduan
Equal to the sum of light emitting diode in the n Digital sum pipe.
Optionally, from m it is I/O mouthful described in optional m-1 I/O mouthfuls respectively with the n Digital sum Guan Zhongyi group Duan Xuanduan
Connection, and every group of Duan Xuanduan is correspondingly connected in the n Digital sum pipe m-1 I/O mouthfuls are different.
Optionally, from m it is I/O mouthful described in select in addition to other than m-1 section selects end to connect in the n Digital sum pipe
I/O mouthfuls and the corresponding chip select terminal in end is selected to connect with the m-1 section.
Optionally, the circuit further include: m resistance；
Wherein, every group of Duan Xuanduan of the n Digital sum pipe passes through corresponding resistance and described m I/O mouthfuls respectively
Part connects.
Optionally, the anode of each light emitting diode corresponds respectively to described section and selects end, the n in the n Digital sum pipe
The cathode of each light emitting diode corresponds respectively to the chip select terminal in Digital sum pipe.
Optionally, the cathode of each light emitting diode corresponds respectively to described section and selects end, the n in the n Digital sum pipe
The anode of each light emitting diode corresponds respectively to the chip select terminal in Digital sum pipe.
Electrical equipment provided by the invention includes digital pipe display circuit as described above, wherein digital pipe display circuit
Including n Digital sum pipe and control unit, the digit and n digit of n Digital sum pipe are less than by the number m of the I/O mouth of control unit
The setting of the sum of light emitting diode number of any charactron and the Duan Xuanduan of n Digital sum pipe are according to n Digital sum pipe in code pipe
P chip select terminal be divided into p group, p chip select terminal of n Digital sum pipe is connect with m I/O mouthfuls of part respectively, n Digital sum pipe it is every
Group Duan Xuanduan is connect with some or all of m I/O mouthfuls respectively, and the I/O mouth that is connect with chip select terminal of guarantee and with chip select terminal pair
The I/O mouth for the every group of Duan Xuanduan connection answered is different.In the present embodiment, it can not only be connect with Duan Xuanduan using same I/O mouthfuls, but also
The mode that can be connect with chip select terminal, greatly reduces I/O mouthfuls of quantity, realizes the dynamic display of functional of n Digital sum pipe, no
Only simple and practical in structure, stable and reliable working performance, the scope of application is relatively broad, makes full use of and save port resource, also
Effectively reduce chip cost and packaging cost.
In the present embodiment, the electricity consumption that electrical equipment 90 can have display function for electromagnetic oven, electric cooker, electronic scale etc. is set
It is standby.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of digital pipe display circuit characterized by comprising control unit and n Digital sum pipe；
It wherein, include: I/O mouthfuls of m input/output in described control unit, the Duan Xuanduan of the n Digital sum pipe is according to the n
P chip select terminal of Digital sum pipe is divided into p group, p chip select terminal of the n Digital sum pipe respectively with m I/O mouthfuls of the part or
All connections, every group of Duan Xuanduan of the n Digital sum pipe connect with m I/O mouthfuls of the part respectively, and with the chip select terminal
The I/O mouth of connection and the I/O mouth of one group of Duan Xuanduan connection corresponding from the chip select terminal are different, and any two Duan Xuanduan is connected
I/O mouth and the I/O mouth that is connect of two chip select terminals corresponding with any two Duan Xuanduan cannot be identical simultaneously, the control
The number m of the I/O mouth of unit processed is less than q+n, wherein q is most light emitting diodes of every charactron in the n Digital sum pipe
Number, n, m, p, q are positive integer.
2. circuit according to claim 1, which is characterized in that described I/O mouthfuls of number m is greater than or equal to the p group section
Most multistage in end is selected to select the number at end.
3. circuit according to claim 2, which is characterized in that the number of each group Duan Xuanduan is all in the p group Duan Xuanduan
m-1。
4. circuit according to claim 3, which is characterized in that each in described I/O mouthfuls of the number m and p group Duan Xuanduan
The product of the number m-1 of group Duan Xuanduan is more than or equal to the sum of light emitting diode in the n Digital sum pipe.
5. circuit according to claim 3, which is characterized in that from m it is I/O mouthful described in optional m-1 I/O mouthfuls respectively with
The n Digital sum Guan Zhongyi group Duan Xuanduan connection, and every group of Duan Xuanduan is correspondingly connected in the n Digital sum pipe m-1 I/O mouthfuls
It is different.
6. circuit according to claim 5, which is characterized in that from m it is I/O mouthful described in select in addition to the n digit
I/O mouth except m-1 section selects end to connect in code pipe and end corresponding chip select terminal connection is selected with the m-1 section.
7. circuit according to claim 1, which is characterized in that the circuit further include: m resistance；
Wherein, every group of Duan Xuanduan of the n Digital sum pipe passes through corresponding resistance and m I/O mouthfuls of the part respectively
Connection.
8. circuit according to claim 1-7, which is characterized in that each light-emitting diodes in the n Digital sum pipe
The anode of pipe corresponds respectively to described section and selects end, and the cathode of each light emitting diode corresponds respectively to institute in the n Digital sum pipe
State chip select terminal.
9. circuit according to claim 1-7, which is characterized in that each light-emitting diodes in the n Digital sum pipe
The cathode of pipe corresponds respectively to described section and selects end, and the anode of each light emitting diode corresponds respectively to institute in the n Digital sum pipe
State chip select terminal.
10. a kind of electrical equipment, which is characterized in that including such as described in any item digital pipe display circuits of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814119.0A CN109326241A (en) | 2018-07-23 | 2018-07-23 | Nixie tube display circuit and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814119.0A CN109326241A (en) | 2018-07-23 | 2018-07-23 | Nixie tube display circuit and electric equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109326241A true CN109326241A (en) | 2019-02-12 |
Family
ID=65264091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810814119.0A Withdrawn CN109326241A (en) | 2018-07-23 | 2018-07-23 | Nixie tube display circuit and electric equipment |
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| CN (1) | CN109326241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109360521A (en) * | 2018-07-23 | 2019-02-19 | 浙江绍兴苏泊尔生活电器有限公司 | Display module, display circuit and consumer |
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| CN203535931U (en) * | 2013-09-17 | 2014-04-09 | 浙江绍兴苏泊尔生活电器有限公司 | Drive circuit of LED or nixie tube |
| CN208433202U (en) * | 2018-07-23 | 2019-01-25 | 浙江绍兴苏泊尔生活电器有限公司 | Nixie tube display circuit and electric equipment |
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| CN201937900U (en) * | 2010-12-13 | 2011-08-17 | 佛山市顺德区瑞德电子实业有限公司 | LED lamp driving circuit |
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| CN103500549A (en) * | 2013-09-17 | 2014-01-08 | 浙江绍兴苏泊尔生活电器有限公司 | Driving circuit and driving method of LED or nixie tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109360521A (en) * | 2018-07-23 | 2019-02-19 | 浙江绍兴苏泊尔生活电器有限公司 | Display module, display circuit and consumer |
| CN109360521B (en) * | 2018-07-23 | 2024-04-30 | 浙江绍兴苏泊尔生活电器有限公司 | Display assembly, display circuit and electric equipment |
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