CN2857406Y - High efficiency energy saving electronic ballast - Google Patents
High efficiency energy saving electronic ballast Download PDFInfo
- Publication number
- CN2857406Y CN2857406Y CN 200520142424 CN200520142424U CN2857406Y CN 2857406 Y CN2857406 Y CN 2857406Y CN 200520142424 CN200520142424 CN 200520142424 CN 200520142424 U CN200520142424 U CN 200520142424U CN 2857406 Y CN2857406 Y CN 2857406Y
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- China
- Prior art keywords
- ballast
- capacitor
- diode
- resistance
- choke
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- Expired - Fee Related
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Abstract
The utility model provides a high-efficiency energy-saving electronic ballast, comprising a ballast choke L, a filter composed by two capacitors C1 and C2 and two inductors L1 and L3, a bridge mode rectifier filter composed by four diodes D1 to D4, two triodes Q1 and Q2 connected in series and a regenerative circuit formed by a high frequency converter and a resistance capacitor. The high frequency converter loops N1, N2 and N3 wind in a magnetic ring with the turns-ratio of 3:3:5. The utility model is characterized in that, the high-efficiency energy-saving electronic ballast is also provided with a high frequency pump type passive wave filter circuit formed by four diodes D5 to D9 and three capacitors C3 to C5, and the ballast choke L is additionally wound with loop L4 whose two ends are connected with a no-load, over-current and over-voltage protection circuit composed of a resistance R7, a capacitor C14, a diode D17 and a relay J and a alarming indication circuit composed of diodes D13 to D16, a capacitor C10, resistances R8 , R9 and R10 and a LED D18. The fluorescent lamp is connected with the rectifier choke L directly in series in use and the two ends of the fluorescent lamp are connected in stride with a capacitor C12.
Description
Technical field:
The utility model belongs to light fixture, is meant the fluorescent tube ballast.
Background technology:
Existing fluorescent tube electric ballast, comprise ballast choke L, by two electric capacity L1, L3, two filters that inductance L 1, L3 form, the bridge rectifier filtering that four diode D1～D4 and capacitor C 2 are formed, and the regenerative circuit of forming by triode Q1, Q2, high frequency transformer and the resistance capacitance of two series connection, high-frequency transformer coils N1, N2, N3 are wrapped on the magnet ring, turn ratio is 3: 3: 5, and ballast choke L is connected with high-frequency transformer coils N3.Fluorescent tube directly is connected in series with ballast choke L, and at fluorescent tube two ends cross-over connection one electric capacity.Utilize high-frequency and high-voltage to light fluorescent tube, waste and old fluorescent tube all can be lighted.But there is dangerous factor, is not provided with current foldback circuit,, the danger of burning ballast is arranged in case it is excessive that electric current takes place.
Summary of the invention:
The utility model provides a kind of energy-efficient electric ballast, be that existing fluorescent tube electric ballast is improved, be characterized in: after bridge rectifier filtering, increased by four diode D5～D9 and three high-frequency pump type passive filter circuits that capacitor C 3～C5 forms; On ballast choke L, add coiling L4 in addition, and be connected to zero load, overcurrent, overvoltage protection and the warning indicating circuit of forming by resistance, electric capacity, diode, light-emitting diode and relay at coil L4 two ends.
Description of drawings:
Fig. 1 is energy-efficient ballast electrical schematic diagram.
Fig. 2 is a high-frequency pump type passive filtering electrical schematic diagram.
Embodiment:
See Fig. 1, Fig. 2, the utility model is a kind of energy-efficient electric ballast, comprise ballast choke L, by two capacitor C 1, C2, two inductance L 1, the filter that L3 forms, four bridge rectifier filtering that diode D1～D4 forms, and by the triode Q1 of two series connection, Q2, the regenerative circuit that high frequency transformer and resistance capacitance are formed, high-frequency transformer coils N1, N2, N3 is wrapped on the magnet ring, turn ratio is 3: 3: 5, it is characterized in that: also be provided with by four diode D5～D9 and three high-frequency pump type passive filter circuits that capacitor C 3～C5 forms; On ballast choke L, add coiling L4 in addition; and be connected to zero load, overcurrent, overvoltage crowbar of forming by resistance R 7, capacitor C 14, diode D17 and relay J and the warning indicating circuit of forming by diode D13～D16, capacitor C 10, resistance R 8, R9, R10, light-emitting diode D18 at coil L4 two ends; wherein; capacitor C 13, resistance R 10 step-downs; the full-wave rectifying circuit that diode D13～D16 forms; for relay J provides DC power supply, resistance R 8, R9 and light-emitting diode D18 form formation zero load, overcurrent, overvoltage protection warning indication.At ordinary times; relay J contact 1 is normally closed with contact 2; when electric current on the loop, when voltage is excessive; coil L4 goes up and produces higher induced electromotive force; behind diode D17, resistance R 7, capacitor C 14 rectifying and wave-filterings, be added on the relay J coil; make relay tip 1 and contact 3 adhesives; normally closed contact 1, contact 2 disconnect; cut off the ballast main circuit power; thereby protected ballast; simultaneously, light-emitting diode D18 constitutes DC loop by resistance R 7, R8, R9, relay J coil and diode D14, is lighted.
During use, fluorescent tube directly is connected in series with ballast choke L, and in fluorescent tube two ends cross-over connection one capacitor C 12.The power factor of this energy-efficient electric ballast can reach more than 0.98.
Claims (1)
1, a kind of energy-efficient electric ballast, comprise ballast choke (L), by two electric capacity (C1, C2), two inductance (L1, L3) filter of Zu Chenging, four diode (D1～D4) the bridge rectifier filtering of composition, and by the triode (Q1 of two series connection, Q2), the regenerative circuit that high frequency transformer and resistance capacitance are formed, high-frequency transformer coils (N1, N2, N3) be wrapped on the magnet ring, turn ratio is 3: 3: 5, ballast choke (L) is connected with high-frequency transformer coils (N3), it is characterized in that: after bridge rectifier filtering, be provided with by four diodes (D5～D9) and three electric capacity (high-frequency pump type passive filter circuit of C3～C5) form; On ballast choke (L), add coiling (L4) in addition, and be connected to the zero load formed by resistance (R7), electric capacity (C14), diode (D17) and relay (J), overcurrent, overvoltage crowbar at coil (L4) two ends and by diode (the warning indicating circuit that D13～D16), electric capacity (C10), resistance (R8, R9, R10) light-emitting diode (D18) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142424 CN2857406Y (en) | 2005-12-02 | 2005-12-02 | High efficiency energy saving electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142424 CN2857406Y (en) | 2005-12-02 | 2005-12-02 | High efficiency energy saving electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857406Y true CN2857406Y (en) | 2007-01-10 |
Family
ID=37600711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142424 Expired - Fee Related CN2857406Y (en) | 2005-12-02 | 2005-12-02 | High efficiency energy saving electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2857406Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428978A (en) * | 2012-05-21 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Lamp drive circuit and lamp using circuit |
-
2005
- 2005-12-02 CN CN 200520142424 patent/CN2857406Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428978A (en) * | 2012-05-21 | 2013-12-04 | 海洋王（东莞）照明科技有限公司 | Lamp drive circuit and lamp using circuit |
| CN103428978B (en) * | 2012-05-21 | 2017-02-15 | 海洋王（东莞）照明科技有限公司 | Lamp drive circuit and lamp using circuit |
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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: 20070110 Termination date: 20100104 |