CN101714487A - Electronic powder decomposition instrument with single chip microcomputer - Google Patents
Electronic powder decomposition instrument with single chip microcomputer Download PDFInfo
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- CN101714487A CN101714487A CN200910250418A CN200910250418A CN101714487A CN 101714487 A CN101714487 A CN 101714487A CN 200910250418 A CN200910250418 A CN 200910250418A CN 200910250418 A CN200910250418 A CN 200910250418A CN 101714487 A CN101714487 A CN 101714487A
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Abstract
The invention relates to an electronic powder decomposition instrument, in particular to an electronic powder decomposition instrument with a single chip microcomputer, which is suitable for hot cathode lamp tube production engineering. The electronic powder decomposition instrument comprises a hardware part, a software part, a PIC16F873A single chip microcomputer, a power supply circuit, a PWM output power circuit, a current sensing circuit, a protection circuit, a user interface circuit, a series-wound lamp tube electrode, a PWM signal output subprogram, a parameter setting and inputting subprogram, an electronic powder decomposition engineering subprogram and a user interface subprogram. The electronic powder decomposition instrument with the single chip microcomputer is a novel fully-automatic electronic powder decomposition instrument with high cost performance and convenience for popularization and application; by adopting the single chip microcomputer for automatic control and by utilizing high voltage pulse current for heating electrodes of a plurality of lamp tubes, the invention has the advantages of higher safety, simpler operation, higher production efficiency and better consistency compared with manual control as well as small size, light weight, and easier setting and operation.
Description
Technical field
The present invention relates to a kind of electronic powder decomposition instrument, particularly a kind of electronic powder decomposition instrument with single chip microcomputer that uses in the HCFL production engineering that is useful in.
Background technology
At present, in the production technology of general existing HCFL, decomposing lamp tube electrode electronics powder general step is to use commutator, the 1kW250V voltage regulator, 6 times of step-up transformers, the appliance circuit that the 500mA alternating current ammeter constitutes is standby current table and lamp tube electrode change color and vacuum meter data variation on one side when work, according to the electric current of lamp tube electrode carry out transformer and regulate on one side; Also useful computer automatic vent platform is carried out the equipment that decomposes the electronics powder automatically, the system of also useful single-chip microcomputer decomposition or active electron powder, but all be because cost an arm and a leg, and in actual production, have more failure problems, be difficult to better popularization and application.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electronics powder decomposition efficiency height, cost performance is good, is convenient to the electronic powder decomposition instrument with single chip microcomputer of popularization and application.
For solving the problems of the technologies described above, the present invention realizes as follows: the electronic powder decomposition instrument with single chip microcomputer of using of the present invention is made up of lamp tube electrode, pwm signal output subroutine, parameter setting and input subroutine, electronics powder decomposition engineering subprogram and the user interface subprogram of hardware components, software section, PIC16F873A single-chip microcomputer, power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit, series connection; Hardware components inside is provided with the lamp tube electrode of power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit and series connection, wherein, the lamp tube electrode of series connection constitutes dateout with the PWM output power circuit and is electrically connected, the lamp tube electrode of series connection constitutes the input data with current sense circuit and protective circuit and is electrically connected, and power circuit constitutes dateout with current sense circuit and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with the hardware components internal power circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with interior current sense circuit of hardware components and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer is electrically connected with PWM output power circuit formation dateout in the hardware components; The PIC16F873A single-chip microcomputer is electrically connected with user interface circuit formation dateout in the hardware components; Software section comprises that pwm signal output subroutine, parameter setting and input subroutine, electronics powder decompose engineering subprogram and user interface subprogram, and is electrically connected with PIC16F873A single-chip microcomputer composition data.
Described power circuit comprises :+5V ,+the 12V power circuit, separate negative pole+900V (300W) and+the 15V power circuit, be provided with power factor compensation integrated package L6561, power field effect transistor, rectifier diode, voltage sensor resistance, voltage sensor resistance, electrochemical capacitor, power inductance, rectifier diode, 15V voltage stabilizing didoe and triode connected in series in the circuit.
Described+900V power circuit comprises, the filtering capacitor that 100 μ F/450V capacitors of power factor compensation integrated package L6561, field effect transistor 2SK2655, rectifier diode MUR10120 and two series connection are connected.
Described PWM output power circuit comprises that TLP-521 optocoupler, 2.4V voltage stabilizing didoe, 2SK2655 field effect transistor, power field effect pipe start the lamp tube electrode of triode and series connection.
Described current sensor circuit and protective circuit comprise PWM current sense circuit, overcurrent sensing circuit, relay circuit and 1A fuse, mainly drive triode, overcurrent sensing magnet ring, overcurrent signal comparator and short-circuit signal processing circuits for triggering by PWM current sense resistance, PWM galvo-preamplifier, optocoupler, current signal amplifier circuit, output break-make relay, relay and form.
Described user interface circuit comprises 4 charactrons, 6 led state indicator lights, and 7 push-button switches, 74LS138 decoder, SN7448 charactron decoder driver and 16P sockets are formed.
Described parameter setting and input subroutine according to the instruction of operating and setting, select the electronics powder to decompose the parameters needed code earlier, select this parameter value with push-button switch again.
Described electronics powder decomposes the engineering subprogram, in same engineering process, according to setup parameter value, carry out generally decompose, height decomposes or activates continuously.
A described program engineering separates engineering, by 21 steps in interval in the same time, configures the order of each step output, and according to different settings, this action can be carried out repeatedly.
Described user interface process subprogram comprises, uses the time-sharing format state display subroutine of the TMR0 interrupt function of PIC16F873A, and the push-button switch of polling mode monitors subprogram.
Good effect of the present invention: electronic powder decomposition instrument with single chip microcomputer of the present invention is a kind of new automatic electronic powder decomposition instrument that high performance-price ratio is convenient to popularization and application that has, it is controlled automatically with single-chip microcomputer, according to the heated by electrodes of high-voltage pulse current to a plurality of fluorescent tubes, than manually control is safer, operation is simpler, production efficiency is higher, consistency is better, and, volume of the present invention is little, and is in light weight, and setting and operation are simpler.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiment of this invention, for those of ordinary skills, do not paying under the prerequisite of creating work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a system configuration schematic diagram of the present invention
Fig. 2 is a pwm signal output circuit schematic diagram of the present invention
Fig. 3 is a power circuit schematic diagram of the present invention
Fig. 4 is current sense of the present invention and protective circuit schematic diagram
Fig. 5 is a user interface circuit schematic diagram of the present invention
Fig. 6 is a single-chip microcomputer connection diagram of the present invention
Among the figure, 1 hardware components, 2 software section 3PIC16F873A single-chip microcomputers
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further details below in conjunction with embodiment and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
As Fig. 1-shown in Figure 6, electronic powder decomposition instrument with single chip microcomputer of the present invention decomposes the engineering subprogram by lamp tube electrode, pwm signal output subroutine, parameter setting and input subroutine, the electronics powder of hardware components, software section, PIC16F873A single-chip microcomputer, power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit, series connection and the user interface subprogram is formed; Hardware components inside is provided with the lamp tube electrode of power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit and series connection, wherein, the lamp tube electrode of series connection constitutes dateout with the PWM output power circuit and is electrically connected, the lamp tube electrode of series connection constitutes the input data with current sense circuit and protective circuit and is electrically connected, and power circuit constitutes dateout with current sense circuit and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with the hardware components internal power circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with interior current sense circuit of hardware components and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer is electrically connected with PWM output power circuit formation dateout in the hardware components; The PIC16F873A single-chip microcomputer is electrically connected with user interface circuit formation dateout in the hardware components; Software section comprises that pwm signal output subroutine, parameter setting and input subroutine, electronics powder decompose engineering subprogram and user interface subprogram, and is electrically connected with PIC16F873A single-chip microcomputer composition data.
Described power circuit comprises :+5V ,+the 12V power circuit, separate negative pole+900V (300W) and+the 15V power circuit, be provided with power factor compensation integrated package L6561, power field effect transistor, rectifier diode, voltage sensor resistance, voltage sensor resistance, electrochemical capacitor, power inductance, rectifier diode, 15V voltage stabilizing didoe and triode connected in series in the circuit.
Described+900V power circuit comprises, the filtering capacitor that 100 μ F/450V capacitors of power factor compensation integrated package L6561, field effect transistor 2SK2655, rectifier diode MUR10120 and two series connection are connected.
Described PWM output power circuit comprises that TLP-521 optocoupler, 2.4V voltage stabilizing didoe, 2SK2655 field effect transistor, power field effect pipe start the lamp tube electrode of triode and series connection.
Described current sensor circuit and protective circuit comprise PWM current sense circuit, overcurrent sensing circuit, relay circuit and 1A fuse, mainly drive triode, overcurrent sensing magnet ring, overcurrent signal comparator and short-circuit signal processing circuits for triggering by PWM current sense resistance, PWM galvo-preamplifier, optocoupler, current signal amplifier circuit, output break-make relay, relay and form.
Described user interface circuit comprises 4 charactrons, 6 led state indicator lights, and 7 push-button switches, 74LS138 decoder, SN7448 charactron decoder driver and 16P sockets are formed.
Described parameter setting and input subroutine according to the instruction of operating and setting, select the electronics powder to decompose the parameters needed code earlier, select this parameter value with push-button switch again.
Described electronics powder decomposes the engineering subprogram, in same engineering process, according to setup parameter value, carry out generally decompose, height decomposes or activates continuously.
A described program engineering separates engineering, by 21 steps in interval in the same time, configures the order of each step output, and according to different settings, this action can be carried out repeatedly.
Described user interface process subprogram comprises, uses the time-sharing format state display subroutine of the TMR0 interrupt function of PIC16F873A, and the push-button switch of polling mode monitors subprogram.
The explanation of embodiment of the present invention:
1, hardware components comprises: single-chip microcomputer PIC16F873A is the center, power circuit, PWM output power circuit, current sense circuit, protective circuit and user interface (Fig. 1).
1), power circuit comprises :+5V ,+the 12V power circuit with separate negative pole+900V (300W) ,+15V power circuit.
+ 5V power supply provides power supply for PIC16F873A with other operational amplifiers, and+12V power supply is that relay drives use.
+ 15V power supply is that PFC integrated package L6561 and PWM output drive use, and+900V power supply is that the lamp tube electrode heating is used.
1W 220V:12V transformer output rectifying and wave-filtering directly uses to relay later on.
And+5V power supply constitutes with general three-terminal voltage-stabilizing integrated package LM7805.
And+15V power supply derives from+the 900V DC power supply, constitutes through transformer, rectifying and wave-filtering, voltage stabilizing didoe and triode.
And, + 900V power circuit comprises, the filtering capacitor of power factor compensation integrated package L6561, field effect transistor 2SK2655, rectifier diode MUR10120 and two 100 μ F/450V capacitors in series for output voltage+900V, is chosen as 1.6M Ω and 6.8K Ω to resistance R 11 and R12.
2), the PWM output power circuit comprises: pwm signal passes through, and drives power circuit.(Fig. 2)
Specifically, pwm signal passes through optocoupler by circuit from the pwm signal that PIC16F873A exports, so negative pole is to separate to constitute.
And, in drive circuit, produce misoperation for preventing to disturb, at C1815 base stage series connection 2.4V voltage stabilizing didoe it is avoided.
And power circuit comprises by metal-oxide-semiconductor 2SK2655J, PWM current sense resistance and being connected on the S source electrode of metal-oxide-semiconductor that pin of lamp tube electrode is connected in the D drain electrode, and lamp tube electrode another one pin is connected from+900V positive electrode of power.
3), current sense circuit comprises: overcurrent sensing circuit and PWM current sense circuit are input to PIC16F873A analog digital conversion inlet by process optocoupler after amplifier, the rectifying and wave-filtering pressure drop at current sense resistance two ends are monitored.
4), protective circuit comprises relay circuit and 1A fuse (Fig. 4); specifically; on+900V outlet line; configuring high-frequency magnet ring current sense transformer; so induced current is by after rectifier, filter, the comparator; in circuit to over-current judging and processing; relay circuit control+900V power supply output on-off function; signal according to program output carries out the control of break-make; and according to the break-make of over-current judging signal, the circuits for triggering that are made of 74LS00 drive by triode C1815.
5) user interface circuit comprises one of 4 charactron and 6 led state indicator lights, 7 push-button switches (Fig. 5).
Specifically, display part comprises, uses charactron: FJS5461AH, decoder: 74LS 138, charactron decoder driver: SN7448.
And 4 charactrons and led state indicator light are same display modes, and keyboard comprises 7 push-button switches, and each switch pulls down to negative pole with 0.1 μ F electric capacity separately, so the push contact vibration signal reduces.
2, software section comprises: signal output subroutine, parameter setting and input subroutine, decompose engineering subprogram, user interface process subprogram (Fig. 1) according to the electronics powder that parameter value carried out of related setting
1), the signal output subroutine, be the output condition that the PWM function with the TMR2 of PIC series monolithic sets, calculate the necessary time with TMR1
Specifically, with the engineering parameter of EPROM memory in the single-chip microcomputer processing mapping mode of classifying,, make pwm signal output according to setting-up time condition at interval.
2), parameter setting and input subroutine, according to the instruction of operating and setting, select the electronics powder to decompose the parameters needed code earlier, select this parameter value with push-button switch again.
Specifically, with FLASH internal memory in the single-chip microcomputer, the parameter value of different types of target is kept in the different memory addresss.
3), the electronics powder decomposes the engineering subprogram, in same engineering process, according to setup parameter value, carry out generally decompose, height decomposes or activates continuously.In a program engineering, engineering is separated into, by 21 steps in interval in the same time, configure the order of each step output, according to different settings, this action can be carried out repeatedly.
4), the user interface process subprogram comprises the time-sharing format of the TMR0 interrupt function of usefulness PIC16F873A, the keyboard supervisory programme of state display routine and polling mode.
Specifically, with TMR 0 interrupt function and time-sharing format, on 4 charactrons and 6 led state indicator lights, represent.
In base program, monitor keyboard with polling mode, carry out and handle corresponding data.
Claims (10)
1. use electronic powder decomposition instrument with single chip microcomputer for one kind, it is characterized in that: its lamp tube electrode by hardware components, software section, PIC16F873A single-chip microcomputer, power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit, series connection, pwm signal output subroutine, parameter setting and input subroutine, electronics powder decompose the engineering subprogram and the user interface subprogram is formed; Hardware components inside is provided with the lamp tube electrode of power circuit, PWM output power circuit, current sense circuit and protective circuit, user interface circuit and series connection, wherein, the lamp tube electrode of series connection constitutes dateout with the PWM output power circuit and is electrically connected, the lamp tube electrode of series connection constitutes the input data with current sense circuit and protective circuit and is electrically connected, and power circuit constitutes dateout with current sense circuit and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with the hardware components internal power circuit and is electrically connected; The PIC16F873A single-chip microcomputer constitutes the input data with interior current sense circuit of hardware components and protective circuit and is electrically connected; The PIC16F873A single-chip microcomputer is electrically connected with PWM output power circuit formation dateout in the hardware components; The PIC16F873A single-chip microcomputer is electrically connected with user interface circuit formation dateout in the hardware components; Software section comprises that pwm signal output subroutine, parameter setting and input subroutine, electronics powder decompose engineering subprogram and user interface subprogram, and is electrically connected with PIC16F873A single-chip microcomputer composition data.
2. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1, it is characterized in that: described power circuit comprises :+5V ,+the 12V power circuit, separate negative pole+900V (300W) and+the 15V power circuit, be provided with power factor compensation integrated package L6561, power field effect transistor, rectifier diode, voltage sensor resistance, voltage sensor resistance, electrochemical capacitor, power inductance, rectifier diode, 15V voltage stabilizing didoe and triode connected in series in the circuit.
3. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 2, it is characterized in that: described+900V power circuit comprises, the filtering capacitor that 100 μ F/450V capacitors of power factor compensation integrated package L6561, field effect transistor 2SK2655, rectifier diode MUR10120 and two series connection are connected.
4. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1 is characterized in that: described PWM output power circuit comprises that TLP-521 optocoupler, 2.4V voltage stabilizing didoe, 2SK2655 field effect transistor, power field effect pipe start the lamp tube electrode of triode and series connection.
5. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1; it is characterized in that: described current sensor circuit and protective circuit comprise PWM current sense circuit, overcurrent sensing circuit, relay circuit and 1A fuse, mainly drive triode, overcurrent sensing magnet ring, overcurrent signal comparator and short-circuit signal processing circuits for triggering by PWM current sense resistance, PWM galvo-preamplifier, optocoupler, current signal amplifier circuit, output break-make relay, relay and form.
6. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1, it is characterized in that: described user interface circuit comprises 4 charactrons, 6 led state indicator lights, and 7 push-button switches, 74LS138 decoder, SN7448 charactron decoder driver and 16P sockets are formed.
7. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1, it is characterized in that: described parameter setting and input subroutine, according to the instruction of operating and setting, select the electronics powder to decompose the parameters needed code earlier, select this parameter value with push-button switch again.
8. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1 is characterized in that: described electronics powder decomposes the engineering subprogram, in same engineering process, according to setup parameter value, carry out generally decompose, height decomposes or activates continuously.
9. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1 is characterized in that: a described program engineering, separate engineering, by 21 steps in interval in the same time, configure the order of each step output, according to different settings, this action can be carried out repeatedly.
10. the electronic powder decomposition instrument with single chip microcomputer of using according to claim 1, it is characterized in that: described user interface process subprogram comprises, with the time-sharing format state display subroutine of the TMR0 interrupt function of PIC16F873A, the push-button switch of polling mode monitors subprogram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250418A CN101714487A (en) | 2009-12-09 | 2009-12-09 | Electronic powder decomposition instrument with single chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910250418A CN101714487A (en) | 2009-12-09 | 2009-12-09 | Electronic powder decomposition instrument with single chip microcomputer |
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| CN101714487A true CN101714487A (en) | 2010-05-26 |
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| CN200910250418A Pending CN101714487A (en) | 2009-12-09 | 2009-12-09 | Electronic powder decomposition instrument with single chip microcomputer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037587A (en) * | 2012-12-26 | 2013-04-10 | 上海航空电器有限公司 | Light adjustment control circuit capable of eliminating interference of control signal end |
-
2009
- 2009-12-09 CN CN200910250418A patent/CN101714487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037587A (en) * | 2012-12-26 | 2013-04-10 | 上海航空电器有限公司 | Light adjustment control circuit capable of eliminating interference of control signal end |
| CN103037587B (en) * | 2012-12-26 | 2017-06-06 | 上海航空电器有限公司 | A kind of adjusting control circuit for eliminating control signal end interference |
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Effective date of abandoning: 20160706 |
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