CN201509185U - High voltage generator with intelligent control program - Google Patents
High voltage generator with intelligent control program Download PDFInfo
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- CN201509185U CN201509185U CN2009201731827U CN200920173182U CN201509185U CN 201509185 U CN201509185 U CN 201509185U CN 2009201731827 U CN2009201731827 U CN 2009201731827U CN 200920173182 U CN200920173182 U CN 200920173182U CN 201509185 U CN201509185 U CN 201509185U
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- control program
- high pressure
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Abstract
The utility model discloses a high voltage generator with an intelligent control program, which mainly comprises a PIC singlechip main control chip, a working condition LED display circuit, a sampling circuit, a high voltage rectifying and doubling circuit, a power supply voltage stabilizing and adjusting circuit, an isolating and buffering amplifying circuit and a high-power field effect transistor, wherein the power supply voltage stabilizing and adjusting circuit provides a power supply and a voltage, and the PIC singlechip main control chip is a high-performance 8-bit embedded microcontroller adopting a reduced instruction set computer (RISC) and comprises a program memory, a data memory, an A/D conversion part, a CCP part and a serial communication interface part inside. The utility model utilizes the perfect technical function of the main control chip, effectively realizes the intelligent program control of a high voltage generator circuit and has good stability.
Description
Technical field
The utility model relates to a kind of high pressure generator based on the PIC single-chip microcomputer, specifically is meant the high pressure generator of tool intelligent control program.
Background technology
The high pressure generator of Shi Yonging mostly is the employing Analog Circuit Design greatly in the market; poor stability as output voltage, the drawback that is difficult to realize operating state demonstration etc. when being difficult to realize failure self-diagnosis and self-protection, the independent use when load open circuit or short circuit generally can appear in this high pressure generator, use extremely inconvenience.Therefore the applicant concentrates on studies, and develops following new the utility model finally, realizes the high pressure generator that stability is high and have the intelligence control circuit operating state.
The utility model content
The purpose of this utility model is to provide a kind of good stability, can realizes that when load open circuit or short circuit failure self-diagnosis and self-protection, independence can realize the high pressure generator of the tool intelligent control program that operating state shows when using.
To achieve these goals, technical solution of the present utility model is:
A kind of high pressure generator of tool intelligent control program, mainly by PIC single-chip microcomputer main control chip, operating state LED display circuit, sample circuit, the high-voltage rectifying voltage-multiplying circuit, circuit is adjusted in the supply voltage voltage stabilizing, and isolation buffer amplifying circuit, high-power field-effect transistor is formed, the supply voltage voltage stabilizing is adjusted circuit for power supply and voltage are provided, it is 8 embedded microcontrollers of high-performance that computer instruction set RISC is simplified in employing described PIC single-chip microcomputer main control chip, and program storage is contained in its inside, data storage, the A/D converting member, the CCP parts, the serial communication interface parts.
Described program storage is the FLASH flash memory of a maximum addressable 4KX14, and FLASH can stand write operation 100,000 times, and can carry out serial programming on application circuit.
The CCP parts can be the pulse-width modulation PWM working method by software setting.
Described supply voltage voltage stabilizing is adjusted circuit and is provided with three end scalable output positive voltage pressurizer, output voltage range 1.2～37V, output current 〉=1.5A.
Described high-power field-effect transistor is N-channel MOS field effect transistor IRF740, back-pressure VbeO=400V, electric current I cm=10A, power P cm=125W.
Be provided with high frequency transformer in the described high-voltage rectifying voltage-multiplying circuit.
After adopting such scheme, the utility model has following additional function concurrently when finishing the stable output that civil power is converted to 6～8KV high direct voltage:
1, when load is short-circuited fault, automatically shuts down high pressure output, and send fast the fault prompting of (about 3 times/second) flicker by red LED;
2, when load generation open fault, automatically shut down high pressure output, and send at a slow speed the fault prompting of (about 1 time/second) flicker by red LED;
3, automatically shut down high pressure output after, at interval 3-5 second, high pressure output increases from low to high gradually; Start the failure self-diagnosis function simultaneously,, turn-off high pressure output once more if fault still exists; So circulation realizes " having the hiccups " protection;
4, if high pressure generator is working properly, send normal bright prompting by green LED.There is one tunnel 5V voltage signal that has current-limiting resistance to export simultaneously, can be used as the operating state output signal;
5, when short circuit sparking generation strong electromagnetic appearred in load (high voltage electric field), single-chip microcomputer automatically reset, and stops sparking;
6, native system adopts the low-work voltage design, therefore can be general by changing external Industrial Frequency Transformer realization 220V and 110V civil power.
The utility model is described in further detail below in conjunction with drawings and embodiments:
Description of drawings
Fig. 1 is the utility model structural circuit fundamental diagram;
Fig. 2 is the utility model program flow diagram.
The figure number explanation:
1PIC single-chip microcomputer main control chip 2 operating state LED display circuits
3 sample circuits, 4 high-voltage rectifying voltage-multiplying circuits
5, circuit is adjusted in 7 supply voltage voltage stabilizings
6PWM isolation buffer amplifying circuit 8 high-power field-effect transistors
Embodiment
The high pressure generator of tool intelligent control program, it is a technical functionality of utilizing main control chip perfect, has effectively realized the intelligent program control of high-voltage generator circuit, finishes the stable output that civil power is converted to 6～8KV high direct voltage.As shown in Figure 1, the utility model mainly by PIC single-chip microcomputer main control chip 1, operating state LED display circuit 2, sample circuit 3, high-voltage rectifying voltage-multiplying circuit 4, supply voltage voltage stabilizing adjust circuit 5,7, and PWM isolation buffer amplifying circuit 6, high-power field-effect transistor 8 form.It selects PIC16F73B for use described PIC single-chip microcomputer main control chip 1, is 8 embedded microcontrollers of high-performance that computer instruction set RISC is simplified in the employing of a kind of Harvard dual bus and two-stage instruction flow line line structure.These PIC single-chip microcomputer main control chip 1 characteristics are high-speed, low-voltage, low-power consumption, and sheet contains program storage, data storage, A/D converting member, CCP parts, serial communication interface parts etc.Program storage is the FLASH flash memory of a maximum addressable 4KX14, and FLASH can stand write operation 100,000 times, and can carry out serial programming on application circuit.The CCP parts can be the pulse-width modulation PWM working method by software setting.As shown in Figure 1, JZ2 is an operating state output signal interface.JZ4 is online serial programming interface, can at any time program be write single-chip microcomputer by it.
LM317 is three an end scalable output positive voltage pressurizer in the described supply voltage voltage stabilizing adjustment circuit 7.Its output voltage range 1.2～37V, output current 〉=1.5A.In the utility model, 220V or 10V civil power add to the JZ1 terminal after the Industrial Frequency Transformer step-down, arrive the LM317 input again behind D1, D2, D3, D4J and C1 rectifying and wave-filtering.By regulating the voltage stabilizing output that multiturn potentiometer VR1 adjusts LM317, for high pressure generator provides main working power.The size of voltage stabilizing output is determining to export the size of high pressure.Voltage stabilizing output can calculate with following formula: Vout=1.25[1+ (R2+VR1)/R1].
78,L05 three end low current positive voltage pressurizers composition in the circuit 5 is adjusted in described supply voltage voltage stabilizing, and it is the power supply circuits of PIC single-chip microcomputer main control chip 1.The effect of its peripheral circuit be at single-chip microcomputer because of certain reason occurs causing that supply power voltage falls when electric current and voltage is unusual, cause that then single-chip microcomputer resets.
Described high-power field-effect transistor 8 is selected N-channel MOS field effect transistor IRF740 for use, and its absolute rating has bigger surplus capacity, back-pressure VbeO=400V, electric current I cm=10A, power P cm=125W.
Described high-voltage rectifying voltage-multiplying circuit 4 medium-high frequency transformer adopting EC28 type high frequency porcelain cores design voluntarily.The output of high frequency transformer auxiliary winding 4-5 provides one tunnel sampled signal behind rectifying and wave-filtering.The output of auxiliary winding 7-8 produces high direct voltage through the voltage-multiplying circuit that high pressure ceramic disc capacitor C14, C15, C16, C17 and high voltage silicon stack D8, D9, D10, D11 form.R25 is a high-pressure glass uranium resistance, provides another road sampled signal after it and R14, the R24 dividing potential drop, and R25 provides high pressure bleed off loop during outage.
When circuit powers up work, main control chip PIC single-chip microcomputer main control chip 1 output pulse signal, this pulse signal amplifies the high-power field-effect transistor 8 of rear drives through PWM isolation buffer amplifying circuit 6 bufferings and carries out electric current and amplify, again by the high-voltage rectifying voltage-multiplying circuit 4 generation high direct voltage of boosting.The LED lamp of above-mentioned operating state LED display circuit 2 is divided into green and red two kinds of Show Colors, and LED1 is that normal operating conditions shows green, and the LED2 fault shows, is redness, is used for the operating state of decision circuitry.
Concrete operation principle of the present utility model: cooperate Fig. 1, shown in Figure 2: when circuit powers up work, PWM (pulse-width modulation) pulse signal of PIC single-chip microcomputer main control chip 1 output 55KHz, this pulse signal amplifies rear drive high-power FETs 8 through PWM isolation buffer amplifying circuit 6 bufferings and carries out electric current and amplify, again by the generation high direct voltage of boosting of the high frequency transformer in the high-voltage rectifying voltage-multiplying circuit 4.Wherein, pulse duration is started from scratch to be increased gradually, so output voltage also increases gradually thereupon.Meanwhile deliver to I/O (I/O) the port RA1 and the RA3 of single-chip microcomputer through two-way sample circuit 3 output sampled signals, single-chip microcomputer carries out A/D (analog/digital) conversion, detects and judges sampled signal.If the sampled signal data are normal, single-chip microcomputer RC0 mouth output high potential, operating state LED display circuit 2 drives green LED and sends the normal operating conditions prompting.PIC single-chip microcomputer main control chip 1 can stop pwm pulse signal output in the process that pulse duration increases gradually when judgement has fault to take place, and promptly turn-offs high pressure output; Single-chip microcomputer RC1 mouth output fault cue simultaneously drives red LED and shows.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique under the situation that does not break away from spirit and scope of the present utility model, can also be made various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (6)
1. the high pressure generator of a tool intelligent control program, it is characterized in that: mainly by PIC single-chip microcomputer main control chip, operating state LED display circuit, sample circuit, the high-voltage rectifying voltage-multiplying circuit, circuit is adjusted in the supply voltage voltage stabilizing, and isolation buffer amplifying circuit, high-power field-effect transistor is formed, the supply voltage voltage stabilizing is adjusted circuit for power supply and voltage are provided, it is 8 embedded microcontrollers of high-performance that computer instruction set RISC is simplified in employing described PIC single-chip microcomputer main control chip, and program storage is contained in its inside, data storage, the A/D converting member, the CCP parts, the serial communication interface parts.
2. the high pressure generator of tool intelligent control program as claimed in claim 1, it is characterized in that: described program storage is the FLASH flash memory of a maximum addressable 4KX14, FLASH can stand write operation 100,000 times, and can carry out serial programming on application circuit.
3. the high pressure generator of tool intelligent control program as claimed in claim 1 is characterized in that: the CCP parts can be the pulse-width modulation PWM working method by software setting.
4. the high pressure generator of tool intelligent control program as claimed in claim 1 is characterized in that: described supply voltage voltage stabilizing is adjusted circuit and is provided with three end scalable output positive voltage pressurizer, output voltage range 1.2～37V, output current 〉=1.5A.
5. the high pressure generator of tool intelligent control program as claimed in claim 1 is characterized in that: described high-power field-effect transistor is N-channel MOS field effect transistor IRF740, back-pressure VbeO=400V, electric current I cm=10A, power P cm=125W.
6. the high pressure generator of tool intelligent control program as claimed in claim 1 is characterized in that: be provided with high frequency transformer in the described high-voltage rectifying voltage-multiplying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731827U CN201509185U (en) | 2009-08-25 | 2009-08-25 | High voltage generator with intelligent control program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731827U CN201509185U (en) | 2009-08-25 | 2009-08-25 | High voltage generator with intelligent control program |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201509185U true CN201509185U (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201731827U Expired - Fee Related CN201509185U (en) | 2009-08-25 | 2009-08-25 | High voltage generator with intelligent control program |
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| CN (1) | CN201509185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821532A (en) * | 2012-08-21 | 2012-12-12 | 邱珍华 | Circuit structure of electric mosquito window |
| CN103401458A (en) * | 2012-09-26 | 2013-11-20 | 上海埃斯凯变压器有限公司 | Three-level resonance converter of high-frequency and high-voltage generator |
| CN107255967A (en) * | 2017-06-23 | 2017-10-17 | 华中科技大学 | A kind of High-voltage Signal Generator regulated and controled suitable for waveform |
-
2009
- 2009-08-25 CN CN2009201731827U patent/CN201509185U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102821532A (en) * | 2012-08-21 | 2012-12-12 | 邱珍华 | Circuit structure of electric mosquito window |
| CN103401458A (en) * | 2012-09-26 | 2013-11-20 | 上海埃斯凯变压器有限公司 | Three-level resonance converter of high-frequency and high-voltage generator |
| CN103401458B (en) * | 2012-09-26 | 2015-09-16 | 上海埃斯凯变压器有限公司 | A kind of high-frequency and high-voltage generator three-level resonant transformer |
| CN107255967A (en) * | 2017-06-23 | 2017-10-17 | 华中科技大学 | A kind of High-voltage Signal Generator regulated and controled suitable for waveform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20130825 |