CN102083265A - Protective device of one-with-three electronic ballast - Google Patents
Protective device of one-with-three electronic ballast Download PDFInfo
- Publication number
- CN102083265A CN102083265A CN2010102894918A CN201010289491A CN102083265A CN 102083265 A CN102083265 A CN 102083265A CN 2010102894918 A CN2010102894918 A CN 2010102894918A CN 201010289491 A CN201010289491 A CN 201010289491A CN 102083265 A CN102083265 A CN 102083265A
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- resistance
- resistor
- triode
- protective device
- 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 invention discloses a protective device of a one-with-three electronic ballast, belonging to the field of electronics and comprising a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6 and a triode, wherein the base electrode of the triode is connected with a pin 12 of an L6574 via the resistor R1, the resistor R3 and the resistor R5, the collector electrode of the triode is connected to a filament of a fluorescent lamp via the resistor R2, the resistor R4 and the resistor R6, and the emitting electrode of the triode is connected with the ground wire. The protective device has the advantages of less used components, simplicity in circuits, low cost and high reliability.
Description
Technical field
The present invention relates to a kind of one and drag three electronic ballast protection devices, belong to the ballast technical field.
Background technology
At present, advocate in the whole world and need to reduce in the expectation of carbon dioxide discharging, energy-conservation and green illumination product, electricity-saving lamp and fluorescent lamp are serving as main role, use by electricity-saving lamp and fluorescent lamp, can save a large amount of energy, reduce exhaust gas discharging, thereby alleviate greenhouse effect, when throwing light on as the Time for Sunshine, farthest alleviated pollution environment.
And to light above-mentioned fluorescent tube, need corresponding electric ballast.With regard to now, Inductive ballast is eliminated substantially, and it is lighted for real matched energy saving lamp and fluorescent lamp and what work is electric ballast.Electric ballast on the market is divided into two kinds, and a kind of is fluorescent lamp of a ballast control, generally is referred to as " one-to-one ballast "; A kind of is two fluorescent lamps of a ballast control, generally is referred to as " one drag two ballast ".Obviously; two fluorescent lamps of a ballast band; than utilance height with a fluorescent lamp; if can be with three fluorescent lamps, it is conspicuous having higher utilance, but when wherein any one fluorescent lamp goes wrong; can be because the excessive ballast that causes of electric current damages; how protecting ballast, avoid bigger loss, is the subject matter of dragging three electric ballasts to solve.
Summary of the invention
The present invention designs in order to address the above problem; the present invention realizes with following technical scheme: a kind of one drags three electronic ballast protection devices; comprise resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6 and triode; the base stage of triode links to each other with 12 pin of L6574 by resistance R 1, resistance R 3, resistance R 5; the collector electrode of triode is connected on the filament of fluorescent lamp by resistance R 2, resistance R 4, resistance R 6, and the emitter of triode is connected with ground wire.
Its operation principle is: this circuit is when all filament loops (or lamp base) all connect when good, by rationally choosing to resistance, make the base potential of triode be approximately 0, triode ends, 12 pin of L6574 are high level, L6574 is working properly, and output drives and makes fluorescent lamp normally light work; When a filament loop (or a lamp base) bad connection, select suitable resistance, will make triode be in saturation condition, make triode current collection positive electric potential be approximately 0, that is the 12 pin current potentials of L6574 are close to 0, are far smaller than 7.3V, thereby make L6574 quit work, output stops, and makes fluorescent lamp quit work then.
The invention has the beneficial effects as follows and use few, the circuit reduction of components and parts, cost is low, reliability is high.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, triode
Embodiment
The present invention is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, this circuit is when all filament loops (or lamp base) all connect when good, rationally the choosing of resistance, make triode 1 base potential be approximately 0, triode ends, and 12 pin of L6574 are high level, L6574 is working properly, and output drives and makes fluorescent lamp normally light work.
When a filament loop (or a lamp base) bad connection, the branch road of resistance R 1, resistance R 2 and resistance R 3, resistance R 4 or resistance R 5, resistance R 6 correspondences must make the base stage of triode 1, it is a high level, select suitable resistance, will make triode 1 be in saturation condition, make triode 1 collector potential be approximately 0, that is the 12 pin current potentials of L6574 are close to 0, be far smaller than 7.3V, thereby make L6574 quit work, output stops, and makes fluorescent lamp quit work then.
Claims (1)
1. one kind one is dragged three electronic ballast protection devices; it is characterized in that comprising resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6 and triode (1); the base stage of triode (1) links to each other with 12 pin of L6574 by resistance R 1, resistance R 3, resistance R 5; the collector electrode of triode (1) is connected on the filament of fluorescent lamp by resistance R 2, resistance R 4, resistance R 6, and the emitter of triode (1) is connected with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102894918A CN102083265A (en) | 2010-09-25 | 2010-09-25 | Protective device of one-with-three electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102894918A CN102083265A (en) | 2010-09-25 | 2010-09-25 | Protective device of one-with-three electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102083265A true CN102083265A (en) | 2011-06-01 |
Family
ID=44088954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102894918A Pending CN102083265A (en) | 2010-09-25 | 2010-09-25 | Protective device of one-with-three electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102083265A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539379Y (en) * | 2002-04-24 | 2003-03-05 | 陈家正 | Resonance switch type electronic ballast |
| US7015652B2 (en) * | 2003-10-17 | 2006-03-21 | Universal Lighting Technologies, Inc. | Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities |
| CN101370340A (en) * | 2007-08-16 | 2009-02-18 | 北京富桦明电子有限公司 | Light tube death protection circuit and operating circuit including the same |
| CN202014407U (en) * | 2010-09-25 | 2011-10-19 | 徐州格利尔数码科技有限公司 | Protection device for triple-split electronic ballast |
-
2010
- 2010-09-25 CN CN2010102894918A patent/CN102083265A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539379Y (en) * | 2002-04-24 | 2003-03-05 | 陈家正 | Resonance switch type electronic ballast |
| US7015652B2 (en) * | 2003-10-17 | 2006-03-21 | Universal Lighting Technologies, Inc. | Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities |
| CN101370340A (en) * | 2007-08-16 | 2009-02-18 | 北京富桦明电子有限公司 | Light tube death protection circuit and operating circuit including the same |
| CN202014407U (en) * | 2010-09-25 | 2011-10-19 | 徐州格利尔数码科技有限公司 | Protection device for triple-split electronic ballast |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110601 |