CN202035203U - Novel electronic ballast capable of resisting surge current - Google Patents
Novel electronic ballast capable of resisting surge current Download PDFInfo
- Publication number
- CN202035203U CN202035203U CN2011201115076U CN201120111507U CN202035203U CN 202035203 U CN202035203 U CN 202035203U CN 2011201115076 U CN2011201115076 U CN 2011201115076U CN 201120111507 U CN201120111507 U CN 201120111507U CN 202035203 U CN202035203 U CN 202035203U
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- circuit
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- voltage conversion
- relay
- electric ballast
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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 discloses a novel electronic ballast capable of resisting surge current, comprising a rectifier circuit and a surge-resisting current circuit, wherein the rectifier circuit is connected with an alternating-current power supply; the surge-resisting current circuit is connected in series between the alternating-current power supply and the rectifier circuit and is formed by connecting a PTC thermistor and a relay in parallel; furthermore, the output terminal of the rectifier circuit of the electronic ballast is connected with a filter electrolytic capacitor and a voltage conversion circuit; an anode of the electrolytic capacitor is connected with the starting end of the voltage conversion circuit; and the output terminal of the voltage conversion circuit is connected with the driving terminal of the relay. When the electrolytic capacitor is charged to a certain degree, the voltage conversion circuit is started to reduce the rectified direct-current voltage and provide the voltage to the relay, so that the relay can be sucked and closed; the thermistor is subjected to short circuit and the function of the thermistor is eliminated, thus effectively resisting the surge current.
Description
Technical field
The utility model relates to a kind of circuit structure of electric ballast, relates in particular to a kind of circuit structure design that is suitable for the great-power electronic ballast Antisurge current.
Background technology
When electric ballast is opened, because the charging of filter capacitor can produce very big surge current.Surge current harm is very big, the fuse of the electric ballast that will fuse, and also may damage other components and parts and cause the electric ballast malfunction and failure.
Conventional electronic ballast reduces inrush current and adopts the input power supply to connect with the NTC thermistor, electric current is by the NTC thermistor, the NTC thermistor has certain resistance when normal temperature, thereby reduce surge current, after the surge current, the NTC thermistor reduces to very little with temperature rising resistance, and is no longer influential to electric current.
Yet the electric ballast technology obtains develop rapidly, and power is also increasing, and the voltage range that is adapted to is also more and more wider.As shown in Figure 1, surpass 400W at electric ballast power, the operating current of electric ballast is very big, and just very big by the electric current of NTC thermistor, the NTC thermistor can't satisfy just no longer suitable on current parameters; And when the power of electric ballast was very big, the capacity of electrochemical capacitor was also very big, and the resistance of NTC thermistor drops to when very little, but electrochemical capacitor is also continuing charging, and electric current on the line is still very big.When making anti-surge device with the NTC thermistor in addition, open use simultaneously at a plurality of electric ballasts, because the very big trip phenomenon that occurs of impulse current, especially electric ballast is turned off in use for some time, this moment, the electric ballast internal temperature was also very high, the resistance value of NTC is also very little, and surge current is very big, and plug-in strip can't boost.So just need a kind of more effective, reliable, surge current that simple proposal reduces electric ballast.
Summary of the invention
Defective in view of above-mentioned prior art existence, the purpose of this utility model is the electric ballast that proposes a kind of novel anti surge current, solution occurs in the surge current problem of great-power electronic ballast, be intended to improve the circuit and the performance of electric ballast, make the work of electric ballast safety and reliability ground.
Above-mentioned purpose of the present utility model will be achieved by the following technical programs:
The electric ballast of novel anti surge current, described electric ballast comprises the rectification circuit that is connected with AC power, it is characterized in that: be serially connected with the Antisurge current circuit that is composed in parallel by PTC thermistor and relay between described AC power and rectification circuit; And described electric ballast is equipped with electrolytic capacitor filter and voltage conversion circuit at the output of rectification circuit, and the positive pole of described electrochemical capacitor is connected to the start end of voltage conversion circuit, and voltage conversion circuit output is connected to the relay drive end.
The application implementation of the utility model electric ballast, its outstanding effect is:
The circuit series connection of electric ballast input power supply and above-mentioned great-power electronic ballast Antisurge current, surge current effectively reduces; To the electric ballast operate as normal certain time-delay is arranged from power on, treat the relay adhesive, the circuit ability operate as normal that the electric ballast rectification circuit is follow-up; Comprise protective circuit in the voltage conversion circuit, can turn-off output under abnormality, relay disconnects, and cuts off the power supply input of electric ballast, has improved the fail safe and the reliability of electric ballast.
Description of drawings
Fig. 1 is that tradition is used for the electrical block diagram that electric ballast reduces surge current;
Fig. 2 is an electrical block diagram of the present utility model.
Embodiment
In order more effectively to solve the surge current problem of great-power electronic ballast, the utility model has adopted a kind of new circuit structure that reduces the electric ballast surge current, be intended to improve the circuit and the performance of electronic ballast, make the work of electric ballast safety and reliability.
As shown in Figure 2, it comprises the PTC thermistor of a positive temperature coefficient, a relay in parallel with the PTC thermistor, a rectification Fang Qiao who connects with PTC thermistor and relay, an electrochemical capacitor and a voltage conversion circuit that is connected in parallel on rectification side's bridge dc output end.
After electric ballast connected AC power, because the characteristic of electrochemical capacitor C1 can moment be short-circuit condition, the PTC thermistor was with the AC power series connection and certain resistance is arranged, and has just reduced surge current effectively.The PTC thermistor temp can sharply raise, resistance value increases, and the electric current by the PTC thermistor reduces very soon, before electric current is reduced to 0, by the PTC thermistor is the electrochemical capacitor charging, treat that electrochemical capacitor is charged to a certain degree, voltage conversion circuit starts, and output voltage makes the relay adhesive, with the short circuit of PTC thermistor, the PTC thermistor is ineffective, and electric current flows through from relay, the electric ballast operate as normal.Between described AC power and rectification circuit, be serially connected with the Antisurge current circuit that composes in parallel by PTC thermistor and relay; And described electric ballast is equipped with electrolytic capacitor filter and voltage conversion circuit at the output of rectification circuit, and the positive pole of described electrochemical capacitor is connected to the start end of voltage conversion circuit, and voltage conversion circuit output is connected to the relay drive end.
It more than is detailed description to feature of the present utility model and execution mode; but above-described content is not to limit various ways of the present utility model with this; so all any simple modification and equivalences of this example being done based on the technical program are replaced; formed technical scheme all should belong within the scope of protection of this patent request.
Claims (1)
1. the electric ballast of novel anti surge current, described electric ballast comprises the rectification circuit that is connected with AC power, it is characterized in that: be serially connected with the Antisurge current circuit that is composed in parallel by PTC thermistor and relay between described AC power and rectification circuit; And described electric ballast is equipped with electrolytic capacitor filter and voltage conversion circuit at the output of rectification circuit, and the positive pole of described electrochemical capacitor is connected to the start end of voltage conversion circuit, and voltage conversion circuit output is connected to the relay drive end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201115076U CN202035203U (en) | 2011-04-15 | 2011-04-15 | Novel electronic ballast capable of resisting surge current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201115076U CN202035203U (en) | 2011-04-15 | 2011-04-15 | Novel electronic ballast capable of resisting surge current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202035203U true CN202035203U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201115076U Expired - Fee Related CN202035203U (en) | 2011-04-15 | 2011-04-15 | Novel electronic ballast capable of resisting surge current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202035203U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023004A (en) * | 2012-11-28 | 2013-04-03 | 余姚亿威电子科技有限公司 | Surge suppression circuit |
| CN104617782A (en) * | 2014-12-25 | 2015-05-13 | 广东美的制冷设备有限公司 | Surge current resisting device, surge current resisting method and household appliance |
| CN106463995A (en) * | 2014-03-17 | 2017-02-22 | 梅塔系统股份公司 | Power supply stage of an electric appliance, in particular a battery charger for charging batteries of electric vehicles |
| CN113765080A (en) * | 2021-08-31 | 2021-12-07 | 长春捷翼汽车零部件有限公司 | Circuit, method, charging device and storage medium for suppressing power supply starting surge |
-
2011
- 2011-04-15 CN CN2011201115076U patent/CN202035203U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023004A (en) * | 2012-11-28 | 2013-04-03 | 余姚亿威电子科技有限公司 | Surge suppression circuit |
| CN103023004B (en) * | 2012-11-28 | 2016-12-21 | 余姚亿威电子科技有限公司 | A kind of surge restraint circuit |
| CN106463995A (en) * | 2014-03-17 | 2017-02-22 | 梅塔系统股份公司 | Power supply stage of an electric appliance, in particular a battery charger for charging batteries of electric vehicles |
| CN106463995B (en) * | 2014-03-17 | 2019-12-06 | 梅塔系统股份公司 | Power supply for an electrical appliance, in particular a battery charger for charging the batteries of an electric vehicle |
| CN104617782A (en) * | 2014-12-25 | 2015-05-13 | 广东美的制冷设备有限公司 | Surge current resisting device, surge current resisting method and household appliance |
| CN113765080A (en) * | 2021-08-31 | 2021-12-07 | 长春捷翼汽车零部件有限公司 | Circuit, method, charging device and storage medium for suppressing power supply starting surge |
| WO2023029962A1 (en) * | 2021-08-31 | 2023-03-09 | 长春捷翼汽车零部件有限公司 | Circuit and method for suppressing power supply starting surge, charging apparatus, and storage medium |
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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: 20111109 Termination date: 20120415 |