CN201623910U - Filter circuit of electrodeless lamp ballast - Google Patents
Filter circuit of electrodeless lamp ballast Download PDFInfo
- Publication number
- CN201623910U CN201623910U CN2010201127469U CN201020112746U CN201623910U CN 201623910 U CN201623910 U CN 201623910U CN 2010201127469 U CN2010201127469 U CN 2010201127469U CN 201020112746 U CN201020112746 U CN 201020112746U CN 201623910 U CN201623910 U CN 201623910U
- Authority
- CN
- China
- Prior art keywords
- circuit
- filter circuit
- power factor
- electrodeless lamp
- factor correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
The utility model discloses a filter circuit of an electrodeless lamp ballast. The filter circuit comprises an EMI circuit, and two electrolytic capacitors (C1 and C2), wherein the electrolytic capacitors are serially connected with each other and then are connected in parallel between a PFC power factor correction circuit and a high-frequency inverter circuit. Compared with the prior art, the two electrolytic capacitors in series connection are connected between the PFC power factor correction circuit and the high-frequency inverter circuit in parallel to improve the shock resistance and the withstand voltage of the circuit and greatly enhance the stability and the reliability of the circuit. Accordingly, the filter circuit of the electrodeless lamp ballast can be widely used in the illumination field to achieve more reliable green illumination.
Description
Technical field
The utility model relates to a kind of local circuit of electroless lamp ballasting device, relates in particular to a kind of electroless lamp ballasting device filter circuit.
Background technology
HF lamp without electrodes is a kind ofly to be coupled in the bulb with induction mode by high-frequency electrical magnetic energy, make inert gas avalanche ionization formation plasma in the bulb, the plasma excited atom gives off the ultraviolet ray of 254nm when returning ground state, the fluorescent material of bulb inner wall is subjected to ultraviolet excitation and the visible light of a kind of strong illumination of sending.Existing electrodeless lamp mainly is made up of three parts: ballast, coupler and fluorescent tube.Its operation principle is: at first civil power is converted to direct current, be transformed into high-frequency electrical energy again, high-frequency electrical energy produces high-intensity magnetic field by the induction coil (coupler) in fluorescent tube centre, magnetic field energy is responded in the fluorescent tube, make gas avalanche ionization formation plasma in the fluorescent tube, the mercury atom of being excited in the plasma gives off the ultraviolet ray of 254nm in returning the ground state process, tube inner wall fluorescent material is received ultraviolet irradiation and converted visible light to.
The circuit of ballast comprises EMI circuit, rectifier bridge, PFC power factor correction circuit and high-frequency inverter circuit, and the EMI circuit is to the raising DeGrain of the impact resistance of circuit.
The utility model content
The purpose of this utility model is to provide a kind of electroless lamp ballasting device filter circuit of simple in structure, good wave filtering effect.
The technical scheme that realizes the utility model purpose is: a kind of electroless lamp ballasting device filter circuit, comprise that the EMI circuit also comprises two electrochemical capacitor C1, C2, and be parallel between PFC power factor correction circuit and the high-frequency inverter circuit after the two series connection.
Compared with prior art, the utility model adopts two electrochemical capacitors of series connection to be parallel between PFC power factor correction circuit and the high-frequency inverter circuit, can improve the shock resistance and the withstand voltage properties of circuit, can increase substantially the stability and the reliability of circuit.Therefore but electroless lamp ballasting device filter circuit widespread usage of the present utility model realizes more reliable green illumination at lighting field.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is circuit theory diagrams of the present utility model, and what show among the figure is the circuit of complete ballast.
Label is in the accompanying drawing:
Embodiment
See Fig. 1, what show is the circuit theory diagrams of complete ballast, and the circuit of ballast comprises electrochemical capacitor C1 and the C2 that is parallel to after EMI circuit 1, rectifier bridge 2, PFC power factor correction circuit 3, high-frequency inverter circuit 4 and the series connection between PFC power factor correction circuit 3 and the high-frequency inverter circuit 4.
Pass to rectifier bridge 2 behind the 220V alternating current process EMI circuit 1, the dc signal that forms pulsation after rectification is given PFC power factor correction circuit 3, PFC power factor correction circuit 3 passes to high-frequency inverter circuit 4 with the metastable direct current signal that the low-voltage dc signal of importing converts high pressure to, high-frequency inverter circuit 4 is reverse into high frequency ac signal with input signal and is coupled in the plasma of fluorescent tube through coupler, plasma is stimulated, thus lamp luminescence.
Should be appreciated that specific embodiment described above only is used to explain the utility model, and be not used in qualification the utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection range of the present utility model.
Claims (1)
1. an electroless lamp ballasting device filter circuit comprises that EMI circuit (1) is characterized in that: also comprise two electrochemical capacitors (C1, C2), be parallel between PFC power factor correction circuit (3) and the high-frequency inverter circuit (4) after the two series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201127469U CN201623910U (en) | 2010-02-11 | 2010-02-11 | Filter circuit of electrodeless lamp ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201127469U CN201623910U (en) | 2010-02-11 | 2010-02-11 | Filter circuit of electrodeless lamp ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623910U true CN201623910U (en) | 2010-11-03 |
Family
ID=43027362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201127469U Expired - Fee Related CN201623910U (en) | 2010-02-11 | 2010-02-11 | Filter circuit of electrodeless lamp ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569007A (en) * | 2012-03-07 | 2012-07-11 | 河海大学常州校区 | Mirror image magnetic circuit inductive coupling electrodeless lamp and electromagnetic parameter design method thereof |
-
2010
- 2010-02-11 CN CN2010201127469U patent/CN201623910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569007A (en) * | 2012-03-07 | 2012-07-11 | 河海大学常州校区 | Mirror image magnetic circuit inductive coupling electrodeless lamp and electromagnetic parameter design method thereof |
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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: 20101103 Termination date: 20120211 |