CN201887999U - Electronic ballast with novel auxiliary winding serial-type igniting circuit structure - Google Patents
Electronic ballast with novel auxiliary winding serial-type igniting circuit structure Download PDFInfo
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- CN201887999U CN201887999U CN2010206028421U CN201020602842U CN201887999U CN 201887999 U CN201887999 U CN 201887999U CN 2010206028421 U CN2010206028421 U CN 2010206028421U CN 201020602842 U CN201020602842 U CN 201020602842U CN 201887999 U CN201887999 U CN 201887999U
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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 with a novel auxiliary winding serial-type igniting circuit structure, comprising an input filter, a DC-DC flyback converter and a DC-AC full-bridge inverter circuit which are sequentially in cascade connection with each other. The front end of the input filter is connected with a storage battery. The DC-AC full-bridge inverter circuit is connected with an arc follow-up circuit in parallel. The DC-AC full-bridge inverter circuit is connected with an auxiliary winding serial-type igniting circuit in series, wherein the auxiliary winding serial-type igniting circuit is used for generating high voltage for breaking down the two electrodes of a high-voltage gas discharge lamp. The auxiliary winding serial-type igniting circuit comprises a positive auxiliary winding voltage-multiplying circuit and a negative auxiliary winding voltage-multiplying circuit. The output ends of the positive auxiliary winding voltage-multiplying circuit and the negative auxiliary winding voltage-multiplying circuit are respectively connected with a dual-contact relay. The dual-contact relay is connected with a booster circuit. The booster circuit is connected with the high-voltage gas discharge lamp. The electronic ballast has the beneficial effects that the breakdown voltage can be improved, the one-pass ignition success rate can be ensured, the service life of the high-voltage gas discharge lamp can be promoted and resources are saved to a certain extent.
Description
Technical field
The utility model relates to a kind of electric ballast with novel auxiliary windings in series formula firing circuit structure that is used for high-voltage gas discharging light.
Background technology
Electronic ballast for high-pressure discharge lamp comprises high-tension ignition circuit and stable state power supply circuit, and firing circuit generally can adopt with the stable state power supply circuit and connect and parallel way.The stable state power supply circuit comprises DC voltage booster circuit and full bridge inverter.The high-pressure generating circuit of firing circuit generally has single-stage booster circuit, twin-stage booster circuit.
The single-stage booster circuit of series connection, as shown in Figure 1, this circuit generally requires the turn ratio very high, and because of high-tension coil flows through lamp current, used lead can not be too thin, can make very big that the high-tension transformer volume does like this.
Single-stage booster circuit in parallel, as shown in Figure 2, that the high-pressure side winding wire can be done is very thin, the other ballast inductance but lamp need be connected, the volume of electronic ballast system also can be very big like this.
The twin-stage booster circuit, as shown in Figure 3, when producing high pressure, the high-pressure side winding plays the effect of electric ballast inductance, can reduce the volume and weight of system.Employing adds the way of auxiliary winding at the secondary of the anti-violent change depressor of prime, but has increased the volume and the manufacture difficulty of anti-violent change depressor.
In order to reduce volume of transformer, can produce high pressure again, existing firing circuit adopts multiplication of voltage series connection point ignition circuit structure, as shown in Figure 4.Adopt the electric ballast of multiplication of voltage series connection point ignition circuit to comprise input filter, anti exciting converter, continuous arc circuit, full bridge inverter, voltage-multiplying circuit, cascaded structure firing circuit, utilize anti exciting converter output stage voltage doubling rectifing circuit, only used the first class boost transformer, can reduce the turn ratio of transformer, can not increase the volume of transformer.But when high-voltage gas discharging light is carried out high-tension ignition at every turn and in the start-up course, the capital makes an electrode in two electrodes of fluorescent tube be fixed as anode, another electrode is fixed as negative electrode, such high-tension ignition circuit structure and start-up course, can make reduce greatly the useful life of high-voltage gas discharging light, and firing circuit efficient is low.
Summary of the invention
There is inefficient problem in the multiplication of voltage tandem firing circuit that the utility model will solve existing electric ballast, the electric ballast with novel auxiliary windings in series formula firing circuit structure that provides a kind of efficient height, structure letter to gather.
The technical solution of the utility model:
A kind of electric ballast with novel auxiliary windings in series formula firing circuit structure, comprise the input filter that is used to cut off the High-frequency Interference between storage battery and this device that cascade successively connects, be used for the DC-DC anti exciting converter of the direct voltage rising that is input as the storage battery grade, be used for high voltage direct current is transformed to the DC-AC full bridge inverter of high-voltage square-wave voltage, the front end of described input filter is connected with storage battery, be connected in parallel on the described DC-AC full bridge inverter when two electrodes of high-voltage gas discharging light are breakdown, the continuous arc circuit of energy is provided for high-voltage gas discharging light momently, it is characterized in that: be in series with the auxiliary windings in series formula firing circuit that is used to produce the high pressure that punctures two electrodes of high-voltage gas discharging light on the described DC-AC full bridge inverter; Described auxiliary windings in series formula firing circuit comprises just auxiliary winding voltage-multiplying circuit and negative auxiliary winding voltage-multiplying circuit, the output of described positive and negative auxiliary winding voltage-multiplying circuit is connected with double-contact relay respectively, described double-contact relay is connected with booster circuit, and described booster circuit is connected with high-voltage gas discharging light;
Described just auxiliary winding voltage-multiplying circuit comprises the 3rd electric capacity, first end of described the 3rd electric capacity links to each other with first end of the anode of output first diode of DC-DC anti exciting converter and just auxiliary winding, first end of first end of described just auxiliary winding and first winding of DC-DC anti exciting converter is an end of the same name, second end of described just auxiliary winding links to each other with the anode of second diode, and the negative electrode of described second diode links to each other with second end, the double-contact relay of the 3rd electric capacity;
Described negative auxiliary winding voltage-multiplying circuit comprises the 7th electric capacity, first end of described the 3rd electric capacity links to each other with first end of negative auxiliary winding, first end of first end of described negative auxiliary winding and first winding of DC-DC anti exciting converter is an end of the same name, second end of described negative auxiliary winding links to each other with the anode of the 4th diode, and the negative electrode of described the 4th diode links to each other with second end of the 7th electric capacity and ground connection.
Further, described booster circuit comprises current-limiting resistance, described current-limiting resistance first end links to each other with the output of double-contact relay, second end of described current-limiting resistance links to each other with ignition capacitor first end and high-voltage bidirectional diac first end, the described ignition capacitor second end ground connection, second end of described high-voltage bidirectional diac links to each other with low-pressure side first end of ignition transformer, high-pressure side first end of described ignition transformer links to each other with high-voltage gas discharging light first end, second end of described high-voltage gas discharging light and first end that intercepts low frequency electric capacity, first end of piezo-resistance, second inductance of DC-AC full bridge inverter links to each other, second end of described obstruct low frequency electric capacity, second end of piezo-resistance also is connected on the 3rd inductance of DC-AC full bridge inverter with high-pressure side second end of ignition transformer is continuous.
The start-up course of high-voltage gas discharging light is divided into to voltage breakdown, glow discharge, aura change arc discharge, arc discharge four-stages such as (steady operations) from transient state to stable state, concrete as shown in Figure 5 status transition process.The length of transient state time is relevant with the watt level that aura changes arc light stage supply fluorescent tube, give fluorescent tube if during aura changes arc light, add a bigger power, speeding up that lamp hole temperature rises will be made, and shortened the transient state time of high-voltage gas discharging light, make fluorescent tube can enter steady operation faster.
Between the starting period, electric ballast will experience that high-voltage breakdown, electric current continue, 3 stages of preheating arc maintenance.High-voltage starting circuit is the basis that can high-voltage gas discharging light instant igniting.But the delay of inertia and filter circuit makes DC converter and detects the loop and has been difficult to response speed faster after the glow discharge, so electric ballast the inside will comprise electric current (take-over) circuit that continues, it with electric capacity in advance energy stored provide a bigger immediate current for lamp, guarantee the reliable transition of aura to arc light.
The utility model has two kinds of charging modes to ignition capacitor: when " 1-3 " of double-contact relay closure, by just assisting output, double-contact relay, the current-limiting resistance of winding ignition capacitor is charged, its polarity is positive right the bearing in a left side; When " 2-3 " of double-contact relay closure, by negative output, double-contact relay, the current-limiting resistance of winding of assisting ignition capacitor to be charged, its polarity is that the right side is just being born in a left side.No matter the polarity of ignition capacitor how, as long as after the voltage at its two ends reaches the breakdown voltage of high-voltage bidirectional diac, just puncture conducting, ignition capacitor transfers energy to the high-pressure side simultaneously by the low-pressure side discharge of ignition transformer.Form closed loop by ignition transformer high pressure winding, high-voltage gas discharging light and piezo-resistance.When the polarity of ignition capacitor is that a left side is positive right when negative, the overlying electrode of then corresponding high-voltage gas discharging light is born positive high pressure, makes fluorescent tube puncture; When the polarity of ignition capacitor is the negative right timing in a left side, the lower electrodes of then corresponding high-voltage gas discharging light is born positive high pressure, makes fluorescent tube puncture.
In the afterflow stage, the working method of circuit is as follows: the 4th capacitor of freewheeling circuit makes high-voltage gas discharging light reach the function of arc maintenance by the loop of being made up of switching tube closed in second inductance, the 3rd inductance, ignition transformer high-pressure side and the DC-AC full bridge inverter of the 3rd diode, second resistance, high-voltage gas discharging light, DC-AC full bridge inverter.When afterflow, the closure of four switching tubes in the full-bridge circuit will match with the front double-contact relay.
Aura changes arc light and after the arc discharge stage, program control allows full-bridge circuit be operated in the alternate conduction state, so just can obtain the alternating current of hundreds of Hz in lamp tube ends, keeps the normally luminous of high-voltage gas discharging light when high-voltage gas discharging light enters.
The electronic ballast for high-pressure discharge lamp of auxiliary windings in series formula firing circuit structure of the present utility model on the basis that does not increase the circuit complexity, by choosing rational electronic component and connected mode, has easily realized promoting the magnitude of voltage of igniting.High-voltage gas discharging light use the superiority of positive and negative two groups of auxiliary windings, double-contact relay, high-voltage bidirectional diac (SIDAC) to be in the utility model: when will be lighted a fire, select the closed manners (" 1-3 closure " or " 2-3 closure ") of double-contact relay at random by software, can accomplish in the whole live time of high-voltage gas discharging light, the high pressure of each igniting is born by two electrode equilibriums, has prolonged the useful life of fluorescent tube so effectively.
The beneficial effects of the utility model: the one, can promote breakdown voltage value, guarantee one time ignition success rate; The 2nd, promote the useful life of high-voltage gas discharging light, saved resource to a certain extent.
Description of drawings
Fig. 1 is the structural representation that high-voltage gas discharging light and ignition coil high-pressure side are in series.
Fig. 2 is the structural representation that high-voltage gas discharging light and ignition coil high-pressure side are in parallel.
Fig. 3 is the structural representation of the two-stage boost ignition circuit of high-voltage gas discharging light.
Fig. 4 is existing multiplication of voltage tandem firing circuit schematic diagram.
Fig. 5 is that high-voltage gas discharging light is from the breakdown transient state transient process schematic diagram to permanent power steady operation of electrode.
Fig. 6 is circuit theory diagrams of the present utility model.
Fig. 7 is a control flow chart of the present utility model.
Embodiment
With reference to Fig. 6, a kind of electric ballast with novel auxiliary windings in series formula firing circuit structure, comprise the input filter 2 that is used to cut off the High-frequency Interference between storage battery 1 and this device that cascade successively connects, be used for the DC-DC anti exciting converter 3 of the direct voltage rising that is input as storage battery 1 grade, be used for high voltage direct current is transformed to the DC-AC full bridge inverter 5 of high-voltage square-wave voltage, the front end of described input filter 2 is connected with storage battery 1, be connected in parallel on the described DC-AC full bridge inverter 5 when two electrodes of high-voltage gas discharging light 62 are breakdown, the continuous arc circuit 4 of energy is provided for high-voltage gas discharging light 62 momently, is in series with the auxiliary windings in series formula firing circuit 6 that is used to produce the high pressure that punctures 62 two electrodes of high-voltage gas discharging light on the described DC-AC full bridge inverter 5; Described auxiliary windings in series formula firing circuit 6 comprises just auxiliary winding voltage-multiplying circuit and negative auxiliary winding voltage-multiplying circuit, the output of described positive and negative auxiliary winding voltage-multiplying circuit is connected with double-contact relay 61 respectively, described double-contact relay 61 is connected with booster circuit, and described booster circuit is connected with high-voltage gas discharging light 62;
Described just auxiliary winding voltage-multiplying circuit comprises the 3rd capacitor C 3, first end of described the 3rd capacitor C 3 links to each other with first end of the anode of the output first diode D1 of DC-DC anti exciting converter 2 and just auxiliary winding Ns2, first end of first end of described just auxiliary winding Ns2 and the first winding Np of DC-DC anti exciting converter 2 is an end of the same name, second end of described just auxiliary winding Ns2 links to each other with the anode of the second diode D2, and the negative electrode of the described second diode D2 links to each other with second end, the double-contact relay 61 of the 3rd capacitor C 3;
Described negative auxiliary winding voltage-multiplying circuit comprises the 7th capacitor C 7, first end of described the 3rd capacitor C 7 links to each other with first end of negative auxiliary winding Ns3, first end of first end of described negative auxiliary winding Ns3 and the first winding Np of DC-DC anti exciting converter 2 is an end of the same name, second end of described negative auxiliary winding Ns3 links to each other with the anode of the 4th diode D4, and the negative electrode of described the 4th diode D4 links to each other with second end of the 7th capacitor C 7 and ground connection.
Described booster circuit comprises current-limiting resistance R3, described current-limiting resistance R3 first end links to each other with the output of double-contact relay 61, second end of described current-limiting resistance R3 links to each other with ignition capacitor C5 first end and high-voltage bidirectional diac SIDAC first end, the described ignition capacitor C5 second end ground connection, second end of described high-voltage bidirectional diac SIDAC links to each other with low-pressure side first end of ignition transformer T2, high-pressure side first end of described ignition transformer T2 links to each other with high-voltage gas discharging light 62 first ends, second end of described high-voltage gas discharging light 62 and first end that intercepts low frequency capacitor C 6, first end of piezo-resistance VSR, second inductance L 2 of DC-AC full bridge inverter 5 links to each other second end of described obstruct low frequency capacitor C 6, second end of piezo-resistance VSR also is connected on the 3rd inductance L 3 of DC-AC full bridge inverter 5 with high-pressure side second end of ignition transformer T2 is continuous.
The start-up course of high-voltage gas discharging light is divided into to voltage breakdown, glow discharge, aura change arc discharge, arc discharge four-stages such as (steady operations) from transient state to stable state, concrete as shown in Figure 5 status transition process.The length of transient state time is relevant with the watt level that aura changes arc light stage supply fluorescent tube, give fluorescent tube if during aura changes arc light, add a bigger power, speeding up that lamp hole temperature rises will be made, and shortened the transient state time of high-voltage gas discharging light, make fluorescent tube can enter steady operation faster.
Between the starting period, electric ballast will experience that high-voltage breakdown, electric current continue, 3 stages of preheating arc maintenance.High-voltage starting circuit is the basis that can high-voltage gas discharging light instant igniting.But the delay of inertia and filter circuit makes DC converter and detects the loop and has been difficult to response speed faster after the glow discharge, so electric ballast the inside will comprise electric current (take-over) circuit that continues, it with electric capacity in advance energy stored provide a bigger immediate current for lamp, guarantee the reliable transition of aura to arc light.
The utility model has two kinds of charging modes to ignition capacitor: when " 1-3 " of double-contact relay 61 closure, output, double-contact relay 61, current-limiting resistance R3 by just auxiliary winding Ns2 charge to ignition capacitor C5, and its polarity is that a left side is positive right negative; When " 2-3 " of double-contact relay 61 closure, by output, double-contact relay 61, the current-limiting resistance R3 that bears auxiliary winding Ns3 ignition capacitor C5 to be charged, its polarity is that the right side is just being born in a left side.The polarity of don't-care point thermoelectricity container C 5 how, as long as after the voltage at its two ends reaches the breakdown voltage of high-voltage bidirectional diac SIDAC, just puncture conducting, ignition capacitor C5 transfers energy to the high-pressure side simultaneously by the low-pressure side discharge of ignition transformer T2.Form closed loop by ignition transformer T2 high pressure winding, high-voltage gas discharging light 62 and piezo-resistance VSR.When the polarity of ignition capacitor C5 is that a left side is positive right when negative, the overlying electrode of then corresponding high-voltage gas discharging light 62 is born positive high pressure, makes fluorescent tube puncture; When the polarity of ignition capacitor C5 is the negative right timing in a left side, the lower electrodes of then corresponding high-voltage gas discharging light 62 is born positive high pressure, makes fluorescent tube puncture.
In the afterflow stage, the working method of circuit is as follows: the 4th capacitor C4 of freewheeling circuit 4 makes high-voltage gas discharging light 62 reach the function of arc maintenance by the loop of being made up of switching tube closed in second inductance L 2, the 3rd inductance L 3, ignition transformer T2 high-pressure side and the DC-AC full bridge inverter 5 of the 3rd diode D3, second resistance R 2, high-voltage gas discharging light 62, DC-AC full bridge inverter 5.When afterflow, the closure of four switching tubes in the full-bridge circuit will match with the front double-contact relay, and concrete operations are seen in the program flow diagram and illustrated, see Fig. 7.
Aura changes arc light and after the arc discharge stage, program control allows full-bridge circuit be operated in the alternate conduction state, so just can obtain the alternating current of hundreds of Hz in lamp tube ends, keeps the normally luminous of high-voltage gas discharging light when high-voltage gas discharging light 62 enters.
The electronic ballast for high-pressure discharge lamp of auxiliary windings in series formula firing circuit structure of the present utility model on the basis that does not increase the circuit complexity, by choosing rational electronic component and connected mode, has easily realized promoting the magnitude of voltage of igniting.High-voltage gas discharging light 62 use the superiority of positive and negative two groups of auxiliary windings, double-contact relay 61, high-voltage bidirectional diac SIDAC to be in the utility model: when will be lighted a fire, select the closed manners (" 1-3 closure " or " 2-3 closure ") of double-contact relay 61 at random by software, can accomplish in high-voltage gas discharging light 62 whole live times, the high pressure of each igniting is born by two electrode equilibriums, has prolonged the useful life of fluorescent tube so effectively.
The described content of this specification embodiment only is enumerating the way of realization of utility model design; protection range of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection range of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (2)
1. electric ballast with novel auxiliary windings in series formula firing circuit structure, comprise the input filter that is used to cut off the High-frequency Interference between storage battery and this device that cascade successively connects, be used for the DC-DC anti exciting converter of the direct voltage rising that is input as the storage battery grade, be used for high voltage direct current is transformed to the DC-AC full bridge inverter of high-voltage square-wave voltage, the front end of described input filter is connected with storage battery, be connected in parallel on the described DC-AC full bridge inverter when two electrodes of high-voltage gas discharging light are breakdown, the continuous arc circuit of energy is provided for high-voltage gas discharging light momently, it is characterized in that: be in series with the auxiliary windings in series formula firing circuit that is used to produce the high pressure that punctures two electrodes of high-voltage gas discharging light on the described DC-AC full bridge inverter; Described auxiliary windings in series formula firing circuit comprises just auxiliary winding voltage-multiplying circuit and negative auxiliary winding voltage-multiplying circuit, the output of described positive and negative auxiliary winding voltage-multiplying circuit is connected with double-contact relay respectively, described double-contact relay is connected with booster circuit, and described booster circuit is connected with high-voltage gas discharging light;
Described just auxiliary winding voltage-multiplying circuit comprises the 3rd electric capacity, first end of described the 3rd electric capacity links to each other with first end of the anode of output first diode of DC-DC anti exciting converter and just auxiliary winding, first end of first end of described just auxiliary winding and first winding of DC-DC anti exciting converter is an end of the same name, second end of described just auxiliary winding links to each other with the anode of second diode, and the negative electrode of described second diode links to each other with second end, the double-contact relay of the 3rd electric capacity;
Described negative auxiliary winding voltage-multiplying circuit comprises the 7th electric capacity, first end of described the 3rd electric capacity links to each other with first end of negative auxiliary winding, first end of first end of described negative auxiliary winding and first winding of DC-DC anti exciting converter is an end of the same name, second end of described negative auxiliary winding links to each other with the anode of the 4th diode, and the negative electrode of described the 4th diode links to each other with second end of the 7th electric capacity and ground connection.
2. a kind of electric ballast according to claim 1 with novel auxiliary windings in series formula firing circuit structure, it is characterized in that: described booster circuit comprises current-limiting resistance, described current-limiting resistance first end links to each other with the output of double-contact relay, second end of described current-limiting resistance links to each other with ignition capacitor first end and high-voltage bidirectional diac first end, the described ignition capacitor second end ground connection, second end of described high-voltage bidirectional diac links to each other with low-pressure side first end of ignition transformer, high-pressure side first end of described ignition transformer links to each other with high-voltage gas discharging light first end, second end of described high-voltage gas discharging light and first end that intercepts low frequency electric capacity, first end of piezo-resistance, second inductance of DC-AC full bridge inverter links to each other, second end of described obstruct low frequency electric capacity, second end of piezo-resistance also is connected on the 3rd inductance of DC-AC full bridge inverter with high-pressure side second end of ignition transformer is continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206028421U CN201887999U (en) | 2010-11-12 | 2010-11-12 | Electronic ballast with novel auxiliary winding serial-type igniting circuit structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206028421U CN201887999U (en) | 2010-11-12 | 2010-11-12 | Electronic ballast with novel auxiliary winding serial-type igniting circuit structure |
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| CN201887999U true CN201887999U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206028421U Expired - Fee Related CN201887999U (en) | 2010-11-12 | 2010-11-12 | Electronic ballast with novel auxiliary winding serial-type igniting circuit structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006707A (en) * | 2010-11-12 | 2011-04-06 | 浙江工业大学 | Electronic ballast with novel auxiliary winding serial ignition circuit structure |
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2010
- 2010-11-12 CN CN2010206028421U patent/CN201887999U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006707A (en) * | 2010-11-12 | 2011-04-06 | 浙江工业大学 | Electronic ballast with novel auxiliary winding serial ignition circuit structure |
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| Date | Code | Title | Description |
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| 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: 20110629 Termination date: 20131112 |