CN103531141B - A kind of Nixie tube drive circuit and its control method - Google Patents
A kind of Nixie tube drive circuit and its control method Download PDFInfo
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- CN103531141B CN103531141B CN201310486254.4A CN201310486254A CN103531141B CN 103531141 B CN103531141 B CN 103531141B CN 201310486254 A CN201310486254 A CN 201310486254A CN 103531141 B CN103531141 B CN 103531141B
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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
- G09G3/10—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 gas tubes
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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
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Abstract
The invention discloses a kind of Nixie tube drive circuit and its control method, including serioparallel exchange unit, obtain serial signal by universal serial bus I2C and are converted to parallel signal；Refresh signal for obtaining refresh signal and power supply signal, and is converted into control signal by control unit；Switching switch element, is connected with serioparallel exchange unit and control unit respectively, for obtaining parallel signal from serioparallel exchange unit, is obtained control signal from control unit, and is exported parallel signal according to control signal；Digital pipe unit, it is connected with control unit and switching switch element respectively, for obtaining power supply signal from control unit, parallel signal is obtained from switching switch element, and digital pipe unit is lighted according to parallel signal and power supply signal, by the way, the present invention can be avoided using MCU control charactrons and cause be unfavorable for layout and the troublesome problem of programming program, conveniently carry out low-cost design and maintenance.
Description
Technical field
The present invention relates to charactron control field, more particularly to a kind of Nixie tube drive circuit and its control method.
Background technology
Charactron is mainly used in diagnosis panel in server field, and diagnosis panel and server master board are by line
Cable connects.The driving of charactron at present and its control method mainly pass through MCU (Micro Control Unit, microcontroller list
Unit) I/O pin controlling, the MCU of conventional control charactron has single-chip microcomputer, CPLD (Complex Programmable
Logic Device, CPLD), FPGA (Field Programmable Gate Array, can compile by scene
Journey gate array) and ARM (Asynchronous Response Mode, asynchronous response mode) processor etc..MCU passes through I/O pin
To control the pin of charactron, so as to realize the control of logarithmic code pipe.If MCU and charactron are on a veneer, in cloth
In the case of office's limited space, MCU is placed without enough spaces on veneer, be unfavorable for the layout of veneer.If MCU sums
Code pipe is not on a veneer, but is attached by cable, then the quantity of connecting line is more.In addition, MCU is needed individually
Burning program interface, program burn writing bother, be unfavorable for low-cost design and maintenance.
Content of the invention
Embodiment of the present invention provides a kind of Nixie tube drive circuit and its control method, can avoid controlling using MCU
Charactron and cause be unfavorable for layout and the troublesome problem of programming program, conveniently carry out low-cost design and maintenance.
First aspect provides a kind of Nixie tube drive circuit, and the circuit includes：Serioparallel exchange unit, by universal serial bus
I2C obtains serial signal, and serial signal is converted to parallel signal；Control unit, for obtaining refresh signal and power supply letter
Number, and refresh signal is converted into control signal；Switching switch element, is connected with serioparallel exchange unit and control unit respectively
Connect, for parallel signal being obtained from serioparallel exchange unit, obtain control signal from control unit, and controlled according to control signal defeated
Go out parallel signal；Digital pipe unit, is connected with control unit and switching switch element respectively, for obtaining electricity from control unit
Source signal, obtains parallel signal from switching switch element, and lights digital pipe unit according to parallel signal and power supply signal；Its
In, circuit is used for connecting external equipment, and external equipment includes I2C control units, serioparallel exchange unit by universal serial bus I2C with
I2C control units connect, to obtain serial signal；Control signal includes the first control signal and the second control signal, and control is single
Unit also obtains refresh signal from the refresh signal generation unit of external equipment, and by refresh signal be converted into the first control signal and
Second control signal.
In the first possible implementation of first aspect, digital pipe unit includes the first charactron and the second number
Pipe, the first charactron and the second charactron are single for the anode connection control of common anode charactron, the first charactron and the second charactron
The negative electrode of unit, the first charactron and the second charactron is connected with switching switch element.
In second possible implementation of first aspect, digital pipe unit includes the first charactron and the second number
Pipe, the first charactron and the second charactron anode and switching switch for common cathode charactron, the first charactron and the second charactron
Unit connects, the negative electrode connection control unit of the first charactron and the second charactron.
In the third possible implementation of first aspect, control signal includes the first control signal and described second
Control signal, control unit also obtain refresh signal from the refresh signal generation unit of external equipment, and refresh signal is changed
Into the first control signal and the second control signal.
In the 4th kind of possible implementation of first aspect, control unit include first resistor, first switch pipe,
Two switching tubes and the 3rd switching tube, wherein, the first end of first switch pipe connects power subsystem by first resistor, and first opens
Close the second end connection refresh signal generation unit of pipe, the 3rd end ground connection of first switch pipe, the first end of second switch pipe with
And the 3rd switching tube first end connection power subsystem, the second end connection of the second end of second switch pipe and the 3rd switching tube cuts
The control end of switch element is changed, the second end of the 3rd switching tube is also connected with the first end of first switch pipe, and refresh signal is also connected with
The control end of switching switch element and the second end of second switch pipe, second charactron of three-terminal link of second switch pipe
Anode, the anode of first charactron of three-terminal link of the 3rd switching tube.
In the 5th kind of possible implementation of first aspect, first switch pipe is used for for refresh signal being converted into first
Control signal and the second control signal；First switch pipe is N-type metal-oxide-semiconductor, and the first end of first switch pipe is drain electrode, and the second end is
Grid, the 3rd end are source electrode, and second switch pipe and the 3rd switching tube are p-type metal-oxide-semiconductor, and the first end of second switch pipe is drain electrode,
Second end is grid, and the 3rd end is source electrode, and the first end of the 3rd switching tube is drain electrode, and the second end is grid, and the 3rd end is source electrode.
In the 6th kind of possible implementation of first aspect, the first control signal and the second control signal phase
180 degree.
In the 7th kind of possible implementation of first aspect, when refresh signal is high level, the first control signal control
System switching switch element lights the first charactron, while being turned on so that the anode of the first charactron connects by controlling the 3rd switching tube
Power supply signal；When refresh signal is low level, the second control signal control switching switch element lights the second charactron, while logical
Cross control second switch pipe to turn on so that the anode of the second charactron connects power supply signal.
In the 8th kind of possible implementation of first aspect, refresh signal is the low-frequency pulse letter that dutycycle is 50%
Number.
In the 9th kind of possible implementation of first aspect, refresh signal generation unit include CPLD, ARM chip,
FPGA or low frequency crystal oscillator.
In the tenth kind of possible implementation of first aspect, external equipment is server, and I2C control units are service
The BMC of device, circuit are used for carrying out fault detect to server.
Second aspect provides the control method that a kind of charactron drives, including：Serial signal is obtained, and serial signal is turned
It is changed to parallel signal；Refresh signal and power supply signal is obtained, and refresh signal is converted into control signal；According to control signal control
System output parallel signal；Power supply signal is obtained, and charactron list is lighted according to control signal, parallel signal and power supply signal
Unit；Control signal includes the first control signal and the second control signal, according to control signal, parallel signal and power supply signal point
Bright digital pipe unit includes：Obtain the first control signal and the second control signal；According to the first control signal, parallel signal and
Power supply signal lights the first charactron；Second charactron is lighted according to the second control signal, parallel signal and power supply signal.
In the first possible implementation of second aspect, the first control signal and the second control signal phase
180 degree.
In second possible implementation of second aspect, refresh signal is the low-frequency pulse letter that dutycycle is 50%
Number.
Nixie tube drive circuit and its control method that embodiment of the present invention is provided, by serioparallel exchange unit through serial
Bus I2C obtains serial signal and is converted to parallel signal, and control unit is used for obtaining refresh signal and power supply signal, and will brush
New signal is converted into control signal, and switching switch element is connected with serioparallel exchange unit and control unit respectively, for from string
And converting unit obtains parallel signal, control signal is obtained from control unit, and parallel signal is exported according to control signal；Digital
Pipe unit, is connected with control unit and switching switch element respectively, for obtaining power supply signal from control unit, is opened from switching
Close unit and obtain parallel signal, and digital pipe unit is lighted according to parallel signal and power supply signal, can avoid controlling using MCU
Charactron and cause be unfavorable for layout and the troublesome problem of programming program, conveniently carry out low-cost design and maintenance.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is the structural representation of the Nixie tube drive circuit of first embodiment of the invention；
Fig. 2 is the structural representation of the Nixie tube drive circuit of second embodiment of the invention；
Fig. 3 is the waveform diagram of each signal of the Nixie tube drive circuit of second embodiment of the invention；
Fig. 4 is the structural representation of the Nixie tube drive circuit of third embodiment of the invention；
Fig. 5 is the control method schematic diagram that the charactron of first embodiment of the invention drives；
Fig. 6 is the control method schematic diagram that the charactron of second embodiment of the invention drives.
Specific embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Referring firstly to Fig. 1, Fig. 1 is the structural representation of the Nixie tube drive circuit of first embodiment of the invention.Such as Fig. 1
Shown, Nixie tube drive circuit 10 includes that serioparallel exchange unit 11, digital pipe unit 12, switching switch element 13 and control are single
Unit 14.Serioparallel exchange unit 11 obtains serial signal by universal serial bus I2C, and serial signal is converted to parallel signal.Control
Unit processed 14 is used for obtaining refresh signal and power supply signal, and refresh signal is converted into control signal.Switching switch element 13
It is connected with serioparallel exchange unit 11 and control unit 14 respectively, for obtaining parallel signal from serioparallel exchange unit 11, from control
Unit processed 14 obtains control signal, and exports parallel signal according to control signal.Digital pipe unit 12 respectively with control unit 14
And switching switch element 13 connects, for obtaining power supply signal from control unit 14, obtain parallel from switching switch element 13
Signal, and digital pipe unit 12 is lighted according to parallel signal and power supply signal.In the present embodiment, be converted to using serial signal
Controlling charactron, transmission range is farther for parallel signal.Simultaneously, it is not necessary to increase MCU, can avoid controlling number using MCU
Code is managed and causes to be unfavorable for layout and the troublesome problem of programming program, conveniently carries out low-cost design and maintenance.
Fig. 2 is the structural representation of the Nixie tube drive circuit of second embodiment of the invention.As shown in Fig. 2 charactron drives
Galvanic electricity road 20 includes serioparallel exchange unit 21, digital pipe unit 22, switching switch element 23 and control unit 24.Charactron drives
Galvanic electricity road 20 is connected with external equipment 27.Switching switch element 23 be connected to serioparallel exchange unit 21 and digital pipe unit 22 it
Between, the connection of control unit 24 switches switch element 23 and digital pipe unit 22.Serioparallel exchange unit 21 is connected by universal serial bus I2C
The I2C control units 271 of external equipment 27 are connect to obtain serial signal, and is converted to parallel signal.Switching switch element 23 is also
Including obtaining the control end 231 of control signal, to receive control signal.Switching switch element 23 is parallel according to control signal output
Signal is lighting digital pipe unit 22.Wherein, control signal includes the first control signal OE1 and the second control signal OE2, both
Phase 180 degree.Control unit 24 connects the power subsystem 272 of external equipment 27 to obtain power supply signal VCC, and according to electricity
Source signal VCC provides power supply for digital pipe unit 22.Control unit 24 is also connected with the refresh signal generation of external equipment 27 simultaneously
Unit 273 is obtaining refresh signal REF_CLK.Refresh signal REF_CLK is converted into the first control signal OE1 by control unit 24
Send with the second control signal OE2 to the control end 231 of switching switch element 23.Wherein, refresh signal REF_CLK is dutycycle
For 50% low frequency pulse signal, refresh signal generation unit 273 includes CPLD, ARM chip, FPGA or low frequency crystal oscillator；I2C is controlled
Unit processed 271 can be any chip, as long as including I2C control units 271.
In the present embodiment, digital pipe unit 22 includes the first charactron 25 and the second charactron 26, the first charactron 25
Common anode charactron is with the second charactron 26.First charactron 25 and the second charactron 26 anode connection control unit 24 with
The negative electrode for receiving power supply signal VCC, the first charactron 25 and the second charactron 26 is connected to receive simultaneously with switching switch element 23
Row signal.In other embodiments of the invention, digital pipe unit 22 can include three, four, even more charactrons；
First charactron 25 and the second charactron 26 can also be common cathode charactron, and it is parallel to receive that anode connects switching switch element 23
The negative electrode connection control unit 24 of signal, the first charactron 25 and the second charactron 26.Below with the first charactron 25 and second
Charactron 26 is common anode charactron and is described in detail.
Control unit 24 includes first resistor R1, first switch pipe Q1, second switch pipe Q2 and the 3rd switching tube Q3.The
The first end of one switching tube Q1 connects power subsystem 272 by first resistor R1 to receive power supply signal VCC, first switch pipe Q1
The second end connection refresh signal generation unit 273 receiving refresh signal REF_CLK, the 3rd termination of first switch pipe Q1
The first end of ground, the first end of second switch pipe Q2 and the 3rd switching tube Q3 connects power subsystem 272 to receive power supply signal
The control end 231 of the second end connection switching switch element 23 of VCC, second end of second switch pipe Q2 and the 3rd switching tube Q3,
Second end of the 3rd switching tube Q3 is also connected with the first end of first switch pipe Q1, and refresh signal REF_CLK is additionally coupled to switching and opens
The control end 231 of unit 23 and second end of second switch pipe Q2 is closed, the three-terminal link second of second switch pipe Q2 is digital
The anode of pipe 26, the anode of first charactron of three-terminal link 25 of the 3rd switching tube Q3.In an embodiment of the present invention, first
Switching tube Q1 is N-type metal-oxide-semiconductor, and the first end of first switch pipe Q1 is drain electrode, and the second end is grid, and the 3rd end is source electrode；Second
Switching tube Q2 and the 3rd switching tube Q3 is p-type metal-oxide-semiconductor, and the first end of second switch pipe Q2 is drain electrode, and the second end is grid, the 3rd
Hold as source electrode, the first end of the 3rd switching tube Q3 is drain electrode, and the second end is grid, and the 3rd end is source electrode.In other of the invention
In embodiment, first switch pipe Q1, second switch pipe Q2 and the 3rd switching tube Q3 can also be BJT (Bipolar
Junction Transistor, bipolar junction transistor), FET (Field Effect Transistor, field-effect transistor)
Or IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor).First switch pipe Q1 is used for
Refresh signal REF_CLK is converted into the first control signal OE1 and the second control signal OE2.Refresh signal REF_CLK is high electricity
At ordinary times, the first control signal OE1 control switching switch element 23 lights the first charactron 25, while by controlling the 3rd switching tube
Q3 is turned on so that the anode of the first charactron 25 meets power supply signal VCC.When refresh signal REF_CLK is low level, the second control
Signal OE2 control switching switch elements 23 light the second charactron 26, while by controlling second switch pipe Q2 conducting so that the
The anode of two charactrons 26 meets power supply signal VCC.
In the present embodiment, parallel signal is converted to using serial signal controlling charactron, transmission range is farther.With
When, it is not necessary to increase MCU, can avoid charactron being controlled using MCU and causing to be unfavorable for layout and programming program trouble
Problem, conveniently carry out low-cost design and maintenance.
Waveform diagrams of the Fig. 3 for each signal of the Nixie tube drive circuit of second embodiment of the invention.As shown in figure 3,
Switching switch element 23 exports the parallel signal of 16, wherein, DATA [0:7] it is the parallel signal of least-significant byte.DATA[8:15] it is
The parallel signal of most-significant byte, VCC_OE1 are the anode potential of the first charactron 25, and VCC_OE2 is the anode electricity of the second charactron 26
Position.Clock on the basis of refresh signal REF_CLK, t1 to t3 are a clock cycle, and power supply signal VCC is always high level.
In conjunction with Fig. 2 and Fig. 3, before t1 to t2 in half clock cycle, refresh signal REF_CLK be high level, first
Switching tube Q1 is turned on, and power supply signal VCC is grounded by first resistor R1 and first switch pipe Q1, and the first control signal OE1 is low
Level, the second control signal OE2 are high level.First control signal OE1 controls the parallel signal DATA [0 of least-significant byte:7] transmit
Negative electrode to the first charactron 25；Meanwhile, the 3rd switching tube Q3 turn on, power supply signal VCC by the 3rd switching tube Q3 transmit to
The anode of the first charactron 25, anode potential VCC_OE1 of the first charactron 25 is high level, and the first charactron 25 is lit.
Now, second switch pipe Q2 cut-offs, power supply signal VCC can not be transmitted to the anode of the second charactron 26, the second charactron 26
Anode potential VCC_OE2 is low level, and the control of the second control signal OE2 makes the parallel signal DATA [8 of most-significant byte:15] no
Can transmit to the negative electrode of the second charactron 26, the second charactron 26 is not lit.
Within rear half clock cycle of t2 to t3, refresh signal REF_CLK be low level, first switch pipe Q1 end,
Power supply signal VCC is transmitted to the first control signal OE1 by first resistor R1, so the first control signal OE1 is high level, the
Two control signals are low level.The control of second control signal OE1 makes the parallel signal DATA [7 of most-significant byte:15] transmit to the second number
The negative electrode of code pipe 26；Meanwhile, second switch pipe Q2 is turned on, and power supply signal VCC is transmitted to the second number by second switch pipe Q2
The anode of pipe 26, anode potential VCC_OE2 of the second charactron 26 is high level, and the second charactron 26 is lit.Now, the 3rd
Switching tube Q3 ends, and anode potential VCC_OE2 of the first charactron 25 is low level, and the control of the first control signal OE1 is low to make 8
Parallel signal DATA [0:Can not 7] transmit to the negative electrode of the first charactron 25, the first charactron 25 is not lit.
With the time of t1 to t3 as a clock cycle, the first charactron 25 and the alternating of the second charactron 26 are lit, when
After the frequency that alternate frequency is capable of identify that more than human eye, two charactrons seen by person are lit simultaneously.According to this
Method can light multiple charactrons.
Fig. 4 is the structural representation of the Nixie tube drive circuit of third embodiment of the invention.As shown in figure 4, real the 3rd
It is described on the basis of applying example, Nixie tube drive circuit 20 can apply to server field, external equipment 27 is server
29, Nixie tube drive circuit 20 is arranged in detection panel 28, and Nixie tube drive circuit 20 is used for carrying out failure to server 29
Detection.BMC (Baseboard Management Controller, substrate management control of the I2C control units 271 for server
Device) 291, power interface 292 of the power subsystem 272 for server 29, CPLD of the refresh signal generation unit 273 for server 29
Module 293.Serioparallel exchange unit 21 obtains serial signal, control unit by universal serial bus I2C from the BMC 291 of server 29
24 obtain power supply signal VCC from the power interface 292 of server 29, obtain refresh signal from the CPLD modules 293 of server 29
REF_CLK.Thus, 20 all of input signal of Nixie tube drive circuit, serial signal, power supply signal VCC and refresh signal
TEF_CLK is from server 29 so as to which peripheral circuit is simple, can avoid being controlled charactron and being caused using MCU
It is unfavorable for layout and the troublesome problem of programming program, conveniently carries out low-cost design and maintenance.Because if in detection panel
Increase MCU or other control circuits on 28, PCB layouts can be made to realize, and when the detection panel is produced, need to increase
Burning program interface, very inconvenient and relatively costly.
Fig. 5 is referred to, Fig. 5 is the control method schematic diagram that the charactron of first embodiment of the invention drives.Such as Fig. 5 institutes
Show, the control method that charactron drives includes：
S31：Nixie tube drive circuit 10 obtains serial signal, and serial signal is converted to parallel signal.
S32：Nixie tube drive circuit 10 obtains refresh signal and power supply signal, and refresh signal is converted into control letter
Number.
S33：The digital pipe unit 12 is lighted according to control signal, parallel signal and power supply signal.
In S33, digital pipe unit 12 can be independent one digit number code pipe, or double figures code pipe, or three
Position, four even more many.
Fig. 6 is the control method schematic diagram that the charactron of second embodiment of the invention drives.Retouched with reference to Fig. 2 and Fig. 5
State, as shown in fig. 6, in the present embodiment, digital pipe unit 22 includes the first charactron 25 and the second charactron 26, and S33 includes：
S330：Nixie tube drive circuit obtains the first control signal and the second control signal.In S330, charactron drives
Circuit obtains refresh signal, and refresh signal is converted into the first control signal and the second control signal.Wherein, refresh signal is
Dutycycle is 50% low frequency pulse signal, can pass through CPLD, ARM chip, FPGA or low frequency crystal oscillator and produce refresh signal；The
One control signal and the second control signal phase 180 degree.
S331：It is digital that Nixie tube drive circuit lights first according to the first control signal, parallel signal and power supply signal
Pipe 25.In S331, the first control signal control parallel signal lights the first charactron 25, meanwhile, the first control signal is controlled
The anode of the first charactron 25 connects power supply signal.
S332：Nixie tube drive circuit lights the second charactron 26 according to the second control signal and parallel signal.In S332
In, the second control signal control parallel signal lights the second charactron 26, meanwhile, the second control signal controls the second charactron 26
Anode connect power supply signal.
In the present embodiment, parallel signal is converted to using serial signal controlling charactron, transmission range is farther, while
MCU need not be increased, can avoid charactron being controlled using MCU and cause to be unfavorable for layout and programming program is troublesome asks
Topic, conveniently carries out low-cost design and maintenance.
In sum, the present invention obtains serial signal by serioparallel exchange unit through universal serial bus I2C and is converted to parallel
Signal, control unit are used for obtaining refresh signal and power supply signal, and refresh signal is converted into control signal, and switching switch is single
Unit is connected with serioparallel exchange unit and control unit respectively, for obtaining parallel signal from serioparallel exchange unit, single from control
Unit obtains control signal, and exports parallel signal according to control signal；Digital pipe unit, is opened with control unit and switching respectively
Unit connection is closed, and for power supply signal being obtained from control unit, obtains parallel signal from switching switch element, and according to parallel letter
Number and power supply signal light digital pipe unit, can avoid controlling charactron and cause be unfavorable for layout and burning using MCU
Write a program troublesome problem, conveniently carry out low-cost design and maintenance.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (14)
1. a kind of Nixie tube drive circuit, it is characterised in that the circuit includes：
Serioparallel exchange unit, obtains serial signal by universal serial bus I2C, and the serial signal is converted to parallel signal；
The refresh signal for obtaining refresh signal and power supply signal, and is converted into control signal by control unit；
Switching switch element, is connected with the serioparallel exchange unit and described control unit respectively, for going here and there and turning from described
Change unit and obtain the parallel signal, the control signal is obtained from described control unit, and exported according to the control signal
The parallel signal；
Digital pipe unit, is connected with described control unit and the switching switch element, respectively for from described control unit
The power supply signal is obtained, and the parallel signal is obtained from the switching switch element, and according to the parallel signal and described
Power supply signal lights the digital pipe unit；
Wherein, the circuit is used for connecting external equipment, and it is single that the external equipment includes that I2C control units and refresh signal are produced
Unit, the serioparallel exchange unit are connected with the I2C control units by the universal serial bus I2C, to obtain the serial letter
Number；The control signal includes that the first control signal and the second control signal, described control unit are also produced from the refresh signal
Raw unit obtains the refresh signal, and the refresh signal is converted into first control signal and the second control letter
Number.
2. circuit according to claim 1, it is characterised in that the digital pipe unit includes the first charactron and the second number
Code pipe, first charactron and second charactron are common anode charactron, first charactron and second number
The negative electrode of the anode connection described control unit of pipe, first charactron and second charactron is single with the switching switch
Unit's connection.
3. circuit according to claim 1, it is characterised in that the digital pipe unit includes the first charactron and the second number
Code pipe, first charactron and second charactron are common cathode charactron, first charactron and second number
The anode of pipe is connected with the switching switch element, and the negative electrode of first charactron and second charactron connects the control
Unit processed.
4. circuit according to claim 1, it is characterised in that the switching switch element includes obtaining the control signal
Control end, the control end is connected with described control unit, with from described control unit obtain first control signal and
Second control signal.
5. circuit according to claim 4, it is characterised in that the digital pipe unit includes the first charactron and the second number
Code pipe, described control unit includes first resistor, first switch pipe, second switch pipe and the 3rd switching tube, wherein, described the
The first end of one switching tube connects the power supply signal, the second end connection institute of the first switch pipe by the first resistor
State refresh signal generation unit, the 3rd end ground connection of the first switch pipe, the first end of the second switch pipe and described
The first end of the 3rd switching tube connects the of the power supply signal, the second end of the second switch pipe and the 3rd switching tube
The control end of the two ends connection switching switch element, the second end of the 3rd switching tube is also connected with the first switch
The first end of pipe, the refresh signal are also connected with the control end of the switching switch element and the second switch pipe
Second end, the anode of the second charactron described in the three-terminal link of the second switch pipe, the 3rd end of the 3rd switching tube
Connect the anode of first charactron.
6. circuit according to claim 5, it is characterised in that the first switch pipe is used for changing the refresh signal
Into first control signal and second control signal；The first switch pipe be N-type metal-oxide-semiconductor, the first switch pipe
First end be drain electrode, the second end is grid, and the 3rd end is source electrode, and the second switch pipe and the 3rd switching tube are p-type
Metal-oxide-semiconductor, the first end of the second switch pipe is drain electrode, and the second end is grid, and the 3rd end is source electrode, the 3rd switching tube
First end is drain electrode, and the second end is grid, and the 3rd end is source electrode.
7. circuit according to claim 5, it is characterised in that first control signal and the second control signal phase
Position difference 180 degree.
8. circuit according to claim 7, it is characterised in that when the refresh signal is high level, first control
The signal control switching switch element lights first charactron, at the same by controlling the 3rd switching tube conducting so that
The anode of first charactron connects the power supply signal；When the refresh signal is low level, the second control signal control
The system switching switch element lights second charactron, while by controlling second switch pipe conducting so that described the
The anode of two charactrons connects the power supply signal.
9. circuit according to claim 4, it is characterised in that the refresh signal is the low-frequency pulse that dutycycle is 50%
Signal.
10. circuit according to claim 4, it is characterised in that the refresh signal generation unit includes CPLD, ARM core
Piece, FPGA or low frequency crystal oscillator.
11. circuits according to claim 1, it is characterised in that the external equipment is server, the I2C controls are single
BMC of the unit for the server, the circuit are used for carrying out fault detect to the server.
The control method that a kind of 12. charactrons drive, it is characterised in that methods described includes：
Serial signal is obtained, and the serial signal is converted to parallel signal；
Refresh signal and power supply signal is obtained, and the refresh signal is converted into control signal；
Digital pipe unit, the charactron list are lighted according to the control signal, the parallel signal and the power supply signal
Unit includes the first charactron and the second charactron；
The control signal includes the first control signal and the second control signal, described according to the control signal, described parallel
Signal and the power supply signal light the digital pipe unit to be included：
Obtain the first control signal and the second control signal；
First charactron is lighted according to first control signal, the parallel signal and the power supply signal；
Second charactron is lighted according to second control signal, the parallel signal and the power supply signal.
13. methods according to claim 12, it is characterised in that first control signal and second control signal
Phase 180 degree.
14. methods according to claim 12, it is characterised in that the refresh signal is the low frequency arteries and veins that dutycycle is 50%
Rush signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486254.4A CN103531141B (en) | 2013-10-16 | 2013-10-16 | A kind of Nixie tube drive circuit and its control method |
| PCT/CN2014/078368 WO2015055009A1 (en) | 2013-10-16 | 2014-05-26 | Digital tube driving circuit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486254.4A CN103531141B (en) | 2013-10-16 | 2013-10-16 | A kind of Nixie tube drive circuit and its control method |
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| Publication Number | Publication Date |
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| CN103531141A CN103531141A (en) | 2014-01-22 |
| CN103531141B true CN103531141B (en) | 2017-03-15 |
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| CN201310486254.4A Active CN103531141B (en) | 2013-10-16 | 2013-10-16 | A kind of Nixie tube drive circuit and its control method |
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| Country | Link |
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| CN (1) | CN103531141B (en) |
| WO (1) | WO2015055009A1 (en) |
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|---|---|---|---|---|
| CN103531141B (en) * | 2013-10-16 | 2017-03-15 | 华为技术有限公司 | A kind of Nixie tube drive circuit and its control method |
| CN110444137A (en) * | 2019-08-15 | 2019-11-12 | 重庆川仪速达机电有限公司 | A kind of multidigit nixie tube display driver circuit and its control method |
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| CN201122346Y (en) * | 2007-12-08 | 2008-09-24 | 海信（山东）空调有限公司 | Air conditioner testing apparatus |
| CN201232908Y (en) * | 2008-07-04 | 2009-05-06 | 上海大学 | Integration traffic light and control system thereof |
| US7696990B2 (en) * | 2006-06-28 | 2010-04-13 | Harvatek Corporation | LED driving circuit and a serial LED illumination system using the same |
| CN201503684U (en) * | 2009-08-13 | 2010-06-09 | 深圳市博驰信电子有限责任公司 | LED display device and drive circuit thereof |
| CN102456308A (en) * | 2010-11-03 | 2012-05-16 | 深圳信息职业技术学院 | Driving circuit of optoelectronic equipment and driving method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100435243C (en) * | 2002-11-01 | 2008-11-19 | 深圳迈瑞生物医疗电子股份有限公司 | Method of high voltage potential meter numerical control resistance value and product |
| CN202720638U (en) * | 2012-06-29 | 2013-02-06 | 深圳市英德斯电子有限公司 | Serial conversion circuit |
| CN103531141B (en) * | 2013-10-16 | 2017-03-15 | 华为技术有限公司 | A kind of Nixie tube drive circuit and its control method |
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2013
- 2013-10-16 CN CN201310486254.4A patent/CN103531141B/en active Active
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2014
- 2014-05-26 WO PCT/CN2014/078368 patent/WO2015055009A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7696990B2 (en) * | 2006-06-28 | 2010-04-13 | Harvatek Corporation | LED driving circuit and a serial LED illumination system using the same |
| CN201122346Y (en) * | 2007-12-08 | 2008-09-24 | 海信（山东）空调有限公司 | Air conditioner testing apparatus |
| CN201232908Y (en) * | 2008-07-04 | 2009-05-06 | 上海大学 | Integration traffic light and control system thereof |
| CN201503684U (en) * | 2009-08-13 | 2010-06-09 | 深圳市博驰信电子有限责任公司 | LED display device and drive circuit thereof |
| CN102456308A (en) * | 2010-11-03 | 2012-05-16 | 深圳信息职业技术学院 | Driving circuit of optoelectronic equipment and driving method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015055009A1 (en) | 2015-04-23 |
| WO2015055009A9 (en) | 2015-08-20 |
| CN103531141A (en) | 2014-01-22 |
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Effective date of registration: 20211223 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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