CN202799344U - Electronic ballast for low-frequency electrodeless lamps - Google Patents
Electronic ballast for low-frequency electrodeless lamps Download PDFInfo
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- CN202799344U CN202799344U CN2012204825512U CN201220482551U CN202799344U CN 202799344 U CN202799344 U CN 202799344U CN 2012204825512 U CN2012204825512 U CN 2012204825512U CN 201220482551 U CN201220482551 U CN 201220482551U CN 202799344 U CN202799344 U CN 202799344U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The utility model relates to an electronic ballast for low-frequency electrodeless lamps. The electronic ballast comprises a rectification active filter circuit, an inverter drive circuit and an inverter circuit. An input end of the rectification active filter circuit is connected with a power supply; an input end of the inverter drive circuit is connected with the rectification active filter circuit; an input end of the inverter circuit is connected with the inverter drive circuit, and an output end is connected with a low-frequency electrodeless lamp; the electronic ballast further comprises an intelligent digital frequency automatic scanning starting circuit and an intelligent digital repeated starting circuit; an input end of the intelligent digital frequency automatic scanning starting circuit is connected with the rectification active filter circuit, and an output end is connected with the inverter drive circuit; and an input end of the intelligent digital repeated starting circuit is connected with the inverter circuit, and an output end is connected with the intelligent digital frequency automatic scanning starting circuit. According to the electronic ballast for low-frequency electrodeless lamps, the stability is good, and the reliability is high; and the electrodeless lamps can obtain good starting effects and are guaranteed to operate normally.
Description
Technical field
The utility model relates to a kind of electronic ballast of low-frequency nonpolar lamp, especially a kind of electric ballast of intelligent digital.
Background technology
It is luminous that traditional fluorescent lamp need to adopt the structure of electrode to carry out, and the damage of electrode is a principal element that affects lamp life-span and performance, and its life-span is generally at 5000-10000 hour.And low frequency electrodeless lamp does not need electrode, it is the new type light source that utilizes the magnetic field induction discharge principle to make, alternating magnetic field produces alternating electric field, make argon in the fluorescent tube-mercury plasma discharge and form ultraviolet ray output, thereby the three primary colors fluorescent powder of exciter lamp tube wall is luminous, and its life-span, light efficiency was up to 80Lm/W up to 100000 hours, power is up to 400W, and these all are that traditional fluorescent lamp can't be reached.
Based on low frequency electrodeless lamp have the life-span long, light efficiency is high, high-power advantage, it can be widely used in the illumination of the occasions such as factory, road, square, harbour.Compared with traditional mercury lamp, sodium vapor lamp, Metal halogen lamp, it has obvious energy-saving effect.But low frequency electrodeless lamp can not use separately, must just can light and keep by electronic ballast of low-frequency nonpolar lamp stability and the continuity of light.So it is particularly important that the stability of electronic ballast of low-frequency nonpolar lamp and reliability seem.
Electronic ballast of low-frequency nonpolar lamp in the market all adopts analog circuit basically, and poor anti jamming capability causes Stability and dependability bad, and the advantage of low frequency electrodeless lamp can't be achieved.
Summary of the invention
The purpose of this utility model provides a kind of the overcome deficiency of existing electronic ballast of low-frequency nonpolar lamp, the intelligent digital electronic ballast of low-frequency nonpolar lamp that stability is better, reliability is higher.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of electronic ballast of low-frequency nonpolar lamp comprises major loop, and described major loop comprises
The rectification active filter circuit, the input of described rectification active filter circuit is connected with power supply, and described rectification active filter circuit is converted to the galvanic current source with the AC power of described power supply;
Inverse changing driving circuit, an input of described inverse changing driving circuit is connected described inverse changing driving circuit output drive signal with an output of described rectification active filter circuit;
Inverter circuit, an input of described inverter circuit is connected with the output of described inverse changing driving circuit, the output of described inverter circuit is connected with the low frequency electrodeless lamp source, and described inverter circuit is converted to High Level AC Voltage with described DC power supply under the driving of described driving signal;
Described electronic ballast of low-frequency nonpolar lamp also comprises
Intelligent digital automatic frequence scanning start-up circuit, an input of described intelligent digital automatic frequence scanning start-up circuit is connected with an output of described rectification active filter circuit, the output of described intelligent digital automatic frequence scanning start-up circuit is connected with an input of described inverse changing driving circuit, and described intelligent digital automatic frequence scanning start-up circuit is created in the interior signal with certain velocity scanning of certain frequency scope;
Intelligent digital repeated priming circuit, the input of described intelligent digital repeated priming circuit is connected with an output of described inverter circuit, the output of described intelligent digital repeated priming circuit is connected with an input of described intelligent digital automatic frequence scanning start-up circuit, and described intelligent digital repeated priming circuit carries out repeated priming with certain blanking time and number of repetition.
Preferably; it also comprises the intelligent digital abnormity protection circuit; the input of described intelligent digital abnormity protection circuit is connected with an output of described inverter circuit; the output of described intelligent digital abnormity protection circuit is connected with an input of described rectification active filter circuit, and described intelligent digital abnormity protection circuit produces the signal of abnormal conditions.
Preferably, described major loop also comprises
The power supply input protection circuit, the input of described power supply input protection is connected with described power supply;
Anti-electromagnetic interference circuit; the input of described anti-electromagnetic interference circuit is connected with the output of described power supply input protection circuit; the output of described anti-electromagnetic interference circuit is connected with described rectification active filter circuit, and described anti-electromagnetic interference circuit is with the electromagnetic interference signal filtering.
Preferably, described intelligent digital automatic frequence scanning start-up circuit comprises the first integrated circuit and the peripheral cell thereof that is set with program software; An output of described the first integrated circuit is the output of described intelligent digital automatic frequence scanning start-up circuit;
Described intelligent digital repeated priming circuit comprises sample circuit, the comparison circuit that is connected with described sample circuit, described the first integrated circuit and the peripheral cell thereof that are connected with described comparison circuit, and another output of described the first integrated circuit is the output of described intelligent digital repeated priming circuit.
Preferably, described sample circuit comprises sampling resistor.
Preferably, described comparison circuit comprises the 6th triode, the 22 resistance, the 24 resistance, the 25 resistance, the 26 resistance, the 29 electric capacity, the 30 electric capacity, the 16 diode; The first end of described the 22 resistance is connected with the collector electrode of described the 6th triode, and the second end of described the 22 resistance is connected with described the first integrated circuit; The first end of described the 29 electric capacity is connected with the base stage of described the 6th triode, and the second end of described the 29 electric capacity is connected with the power supply ground of described the first integrated circuit; Described the 24 resistance is connected between the second end of the second end of described the 22 resistance and described the 29 electric capacity; Described the 25 resistance is connected between the base stage and described the first integrated circuit of described the 6th triode; Described the 26 resistance and described the 30 Capacitance parallel connection are between the second end of the emitter of described the 6th triode and described the 29 electric capacity; The positive pole of described the 16 diode is connected with described sample circuit, and the negative pole of described the 16 diode is connected with the emitter of described the 6th triode.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, the utility model adopts intelligent digital single-chip microcomputer computer chip as the core control element, and stability is better, and reliability is higher;
2, the utlity model has intelligent digital automatic frequence scanning start-up circuit, Non-polarized lamp its operating frequency when starting is scanned automatically with certain speed in certain frequency range, to obtain best startup effect, it is more stable more reliable that Non-polarized lamp is started;
3, the utlity model has intelligent digital repeated priming circuit, Non-polarized lamp is started after starting unsuccessfully for the first time again, until lamp is normally lighted, guaranteed the normal operation of Non-polarized lamp.
Description of drawings
Accompanying drawing 1 is the theory diagram of electronic ballast of low-frequency nonpolar lamp of the present utility model
Accompanying drawing 2 is the circuit diagram of the preferred implementation of electronic ballast of low-frequency nonpolar lamp of the present utility model.
In the above accompanying drawing: 100, power supply input protection circuit; 200, anti-electromagnetic interference circuit; 300, rectification active filter circuit; 400, inverse changing driving circuit; 500, inverter circuit; 600, low frequency electrodeless lamp source; 700, intelligent digital automatic frequence scanning start-up circuit; 800, intelligent digital repeated priming circuit; 900, intelligent digital abnormity protection circuit.
Embodiment
Below in conjunction with embodiment shown in the drawings the utility model is further described.
Embodiment one: shown in accompanying drawing 1.
A kind of electronic ballast of low-frequency nonpolar lamp comprises major loop, and described major loop comprises power supply input protection circuit 100, anti-electromagnetic interference circuit 200, rectification active filter circuit 300, inverse changing driving circuit 400, inverter circuit 500.
The input of described power supply input protection is connected with described power supply.
The input of described anti-electromagnetic interference circuit 200 is connected with the output of described power supply input protection circuit 100; the output of described anti-electromagnetic interference circuit 200 is connected with described rectification active filter circuit 300; described anti-electromagnetic interference circuit 200 is with the electromagnetic interference signal filtering; stop on the one hand and disturb this electronic ballast of low-frequency nonpolar lamp from the interference signal of AC network, the interference signal that stops on the other hand this electronic ballast of low-frequency nonpolar lamp to produce is disturbed AC network.
The input of described rectification active filter circuit 300 is connected with the output of anti-electromagnetic interference circuit 200, and described rectification active filter circuit 300 will be converted to the galvanic current source through the AC power that anti-electromagnetic interference circuit 200 is processed.This rectification active filter circuit 300 comprises rectification circuit and filter circuit two parts.Usually rectification circuit adopts bridge rectifier, and active filter circuit adopts application-specific integrated circuit (ASIC), and it is minimum that the electromagnetism harmonic content of input current is down to, to reduce the impact on electrical network.
An input of described inverse changing driving circuit 400 is connected described inverse changing driving circuit 400 output drive signals with an output of described rectification active filter circuit 300.This drives signal and is the concussion square wave driving signal.
An input of described inverter circuit 500 is connected with the output of described inverse changing driving circuit 400, the output of described inverter circuit 500 is connected with low frequency electrodeless lamp source 600, described inverter circuit 500 is converted to High Level AC Voltage with described DC power supply under the driving of described driving signal, thereby light low frequency electrodeless lamp source 600, and keep low frequency electrodeless lamp source 600 and be in stable illumination condition.
Described electronic ballast of low-frequency nonpolar lamp also comprises intelligent digital automatic frequence scanning start-up circuit 700, intelligent digital repeated priming circuit 800 and intelligent digital abnormity protection circuit 900.
An input of described intelligent digital automatic frequence scanning start-up circuit 700 is connected with an output of described rectification active filter circuit 300, and the output of described intelligent digital automatic frequence scanning start-up circuit 700 is connected with an input of described inverse changing driving circuit 400.Described intelligent digital automatic frequence scanning start-up circuit 700 is created in the interior signal with certain velocity scanning of certain frequency scope.Its core parts are intelligent digital single-chip microcomputer computer chips, and it is more stable more reliable that low frequency electrodeless lamp is started.
The input of described intelligent digital repeated priming circuit 800 is connected with an output of described inverter circuit 500, the output of described intelligent digital repeated priming circuit 800 is connected with an input of described intelligent digital automatic frequence scanning start-up circuit 700, described intelligent digital repeated priming circuit 800 carries out repeated priming with certain blanking time and number of repetition, guarantees normally starting light of low frequency electrodeless lamp.
The input of described intelligent digital abnormity protection circuit 900 is connected with an output of described inverter circuit 500, and the output of described intelligent digital abnormity protection circuit 900 is connected with an input of described rectification active filter circuit 300.When its operating state that detects low frequency electrodeless lamp source 600 occurs when unusual, produce the abnormal conditions signal and pass to rectification active filter circuit 300, it is quit work, effectively protect this electric ballast.
Shown in accompanying drawing 2.Power supply input protection circuit 100, anti-electromagnetic interference circuit 200, rectification active filter circuit 300, inverse changing driving circuit 400, inverter circuit 500, intelligent digital abnormity protection circuit 900 adopt comparatively common circuit.
Power supply input protection circuit 100 mainly is comprised of insurance resistance F and piezo-resistance Rv.The effect of insurance resistance F is can not to be burned with protective circuit by quick fuse when circuit breaks down.The effect of piezo-resistance Rv is the high-voltage pulse that absorbs from electrical network.
The rectification circuit part of rectification active filter circuit 300 forms bridge rectifier by the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4; The filter circuit part mainly is made of jointly the 7th capacitor C 7, the 8th capacitor C 8, the 9th capacitor C 9, the tenth capacitor C 10, the 11 capacitor C 11, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 5th diode D5, the 11 diode D11, the first field effect transistor Q1, the first transformer B1, application-specific integrated circuit (ASIC) IC1, it is the active filter circuit that boosts, and can obtain galvanic current and press V0.
Inverse changing driving circuit 400 mainly is comprised of pulse transformer B2, the second integrated circuit (IC) 2, the 6th diode D6, the 7th diode D7, the 11 resistance R 11, the 12 resistance R 12, the 21 resistance R 21, the 24 capacitor C 24.
Intelligent digital abnormity protection circuit 900 mainly is comprised of the 15 resistance R 15, the 17 resistance R 17, the 19 resistance R 19, the 20 capacitor C 20, the 15 diode D15, the second integrated circuit (IC) 2, the first integrated circuit (IC) 3.
The below introduces the electric circuit constitute and the operation principle thereof of intelligent digital automatic frequence scanning start-up circuit 700 and intelligent digital repeated priming circuit 800 in the present embodiment in detail.
Described intelligent digital automatic frequence scanning start-up circuit 700 comprises the first integrated circuit (IC) 3 and peripheral cell and the 18 resistance R 18 and the 20 resistance R 20 that are connected with the first integrated circuit (IC) 3.Wherein, the peripheral cell of the first integrated circuit (IC) 3 comprises the 23 resistance R 23, the 27 capacitor C 27, the 28 capacitor C 28, quartzy vibrator JZ.Be set with program software in the first integrated circuit (IC) 3, an output of described the first integrated circuit (IC) 3 is the output of described intelligent digital automatic frequence scanning start-up circuit 700.
When low frequency electrodeless lamp source 600 starts, the first integrated circuit (IC) 3 will produce a square-wave signal, the frequency of this square wave signal scans automatically from high to low or from low to high with certain sweep speed in certain scope, and concrete scheme is set by the program software of the first integrated circuit (IC) 3.This square wave signal is connected to the input of inverse changing driving circuit 400 after by the 18 resistance R 18, the 20 resistance R 20 dividing potential drops.Because square-wave signal scans automatically from high to low or from low to high, so this square wave signal can make low frequency electrodeless lamp light source 600 obtain best effect when starting.
Intelligent digital repeated priming circuit 800 mainly comprises the first integrated circuit (IC) 3 and peripheral cell thereof, also comprises the 22 resistance R 22, the 24 resistance R 24, the 25 resistance R 25, the 26 resistance R 26, the 27 resistance R 27, the 28 resistance R 28, the 29 capacitor C 29, the 30 capacitor C 30, the 16 diode D16, the 5th inductance L 5, the 6th triode Q6.Another output of described the first integrated circuit is the output of described intelligent digital repeated priming circuit 800.
Wherein, the 27 resistance R 27 and the 28 resistance R 28 are sampling resistor and consist of described sample circuit.Also be connected with comparison circuit between sample circuit and the first integrated circuit (IC) 3.Described comparison circuit comprises the 6th triode Q6, the 22 resistance R 22, the 24 resistance R 24, the 25 resistance R 25, the 26 resistance R 26, the 29 capacitor C 29, the 30 capacitor C 30, the 16 diode D16.The first end of described the 22 resistance R 22 is connected with the collector electrode of described the 6th triode Q6, and the second end of described the 22 resistance R 22 is connected with described the first integrated circuit (IC) 3; The first end of described the 29 capacitor C 29 is connected with the base stage of described the 6th triode Q6, and the second end of described the 29 capacitor C 29 is connected with described the first integrated circuit (IC) 3; Described the 24 resistance R 24 is connected between the second end of the second end of described the 22 resistance R 22 and described the 29 capacitor C 29; Described the 25 resistance R 25 is connected between the base stage and described the first integrated circuit (IC) 3 of described the 6th triode Q6; Described the 26 resistance R 26 and described the 30 capacitor C 30 are parallel between the second end of the emitter of described the 6th triode Q6 and described the 29 capacitor C 29; The positive pole of described the 16 diode D16 is connected with described sample circuit, and the negative pole of described the 16 diode D16 is connected with the emitter of described the 6th triode Q6.
After low frequency electrodeless lamp source 600 starts unsuccessfully for the first time, this intelligent digital repeated priming circuit 800 can carry out repeated priming automatically, the blanking time of repeated priming and the number of times of repetition are set by the program software of the first integrated circuit (IC) 3, these intelligent digital repeated priming circuit 800 repeated primings until low frequency electrodeless lamp source 600 start successes or reach till the number of times of the repetition that sets.
Adopt the Non-polarized lamp job stability of this electronic ballast of low-frequency nonpolar lamp better, reliability is higher, can demonstrate more that it is long such as the life-span, effects of energy conservation and environmental protection good, light efficiency is high, light is stablized the advantages such as flicker free.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (6)
1. an electronic ballast of low-frequency nonpolar lamp comprises major loop, and described major loop comprises
The rectification active filter circuit, the input of described rectification active filter circuit is connected with power supply, and described rectification active filter circuit is converted to the galvanic current source with the AC power of described power supply;
Inverse changing driving circuit, an input of described inverse changing driving circuit is connected described inverse changing driving circuit output drive signal with an output of described rectification active filter circuit;
Inverter circuit, an input of described inverter circuit is connected with the output of described inverse changing driving circuit, the output of described inverter circuit is connected with the low frequency electrodeless lamp source, and described inverter circuit is converted to High Level AC Voltage with described DC power supply under the driving of described driving signal;
It is characterized in that: described electronic ballast of low-frequency nonpolar lamp also comprises
Intelligent digital automatic frequence scanning start-up circuit, an input of described intelligent digital automatic frequence scanning start-up circuit is connected with an output of described rectification active filter circuit, the output of described intelligent digital automatic frequence scanning start-up circuit is connected with an input of described inverse changing driving circuit, and described intelligent digital automatic frequence scanning start-up circuit is created in the interior signal with certain velocity scanning of certain frequency scope;
Intelligent digital repeated priming circuit, the input of described intelligent digital repeated priming circuit is connected with an output of described inverter circuit, the output of described intelligent digital repeated priming circuit is connected with an input of described intelligent digital automatic frequence scanning start-up circuit, and described intelligent digital repeated priming circuit carries out repeated priming with certain blanking time and number of repetition.
2. electronic ballast of low-frequency nonpolar lamp according to claim 1; it is characterized in that: it also comprises the intelligent digital abnormity protection circuit; the input of described intelligent digital abnormity protection circuit is connected with an output of described inverter circuit; the output of described intelligent digital abnormity protection circuit is connected with an input of described rectification active filter circuit, and described intelligent digital abnormity protection circuit produces the signal of abnormal conditions.
3. electronic ballast of low-frequency nonpolar lamp according to claim 1, it is characterized in that: described major loop also comprises
The power supply input protection circuit, the input of described power supply input protection is connected with described power supply;
Anti-electromagnetic interference circuit; the input of described anti-electromagnetic interference circuit is connected with the output of described power supply input protection circuit; the output of described anti-electromagnetic interference circuit is connected with described rectification active filter circuit, and described anti-electromagnetic interference circuit is with the electromagnetic interference signal filtering.
4. electronic ballast of low-frequency nonpolar lamp according to claim 1, it is characterized in that: described intelligent digital automatic frequence scanning start-up circuit comprises the first integrated circuit and the peripheral cell thereof that is set with program software; An output of described the first integrated circuit is the output of described intelligent digital automatic frequence scanning start-up circuit;
Described intelligent digital repeated priming circuit comprises sample circuit, the comparison circuit that is connected with described sample circuit, described the first integrated circuit and the peripheral cell thereof that are connected with described comparison circuit, and another output of described the first integrated circuit is the output of described intelligent digital repeated priming circuit.
5. electronic ballast of low-frequency nonpolar lamp according to claim 4, it is characterized in that: described sample circuit comprises sampling resistor.
6. electronic ballast of low-frequency nonpolar lamp according to claim 4, it is characterized in that: described comparison circuit comprises the 6th triode, the 22 resistance, the 24 resistance, the 25 resistance, the 26 resistance, the 29 electric capacity, the 30 electric capacity, the 16 diode; The first end of described the 22 resistance is connected with the collector electrode of described the 6th triode, and the second end of described the 22 resistance is connected with described the first integrated circuit; The first end of described the 29 electric capacity is connected with the base stage of described the 6th triode, and the second end of described the 29 electric capacity is connected with the power supply ground of described the first integrated circuit; Described the 24 resistance is connected between the second end of the second end of described the 22 resistance and described the 29 electric capacity; Described the 25 resistance is connected between the base stage and described the first integrated circuit of described the 6th triode; Described the 26 resistance and described the 30 Capacitance parallel connection are between the second end of the emitter of described the 6th triode and described the 29 electric capacity; The positive pole of described the 16 diode is connected with described sample circuit, and the negative pole of described the 16 diode is connected with the emitter of described the 6th triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204825512U CN202799344U (en) | 2012-09-19 | 2012-09-19 | Electronic ballast for low-frequency electrodeless lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204825512U CN202799344U (en) | 2012-09-19 | 2012-09-19 | Electronic ballast for low-frequency electrodeless lamps |
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| Publication Number | Publication Date |
|---|---|
| CN202799344U true CN202799344U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204825512U Expired - Fee Related CN202799344U (en) | 2012-09-19 | 2012-09-19 | Electronic ballast for low-frequency electrodeless lamps |
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| Country | Link |
|---|---|
| CN (1) | CN202799344U (en) |
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- 2012-09-19 CN CN2012204825512U patent/CN202799344U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180919 |