CN202979436U - Novel low pressure sodium lamp ballast circuit - Google Patents
Novel low pressure sodium lamp ballast circuit Download PDFInfo
- Publication number
- CN202979436U CN202979436U CN2012205896939U CN201220589693U CN202979436U CN 202979436 U CN202979436 U CN 202979436U CN 2012205896939 U CN2012205896939 U CN 2012205896939U CN 201220589693 U CN201220589693 U CN 201220589693U CN 202979436 U CN202979436 U CN 202979436U
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- circuit
- sodium lamp
- pressure sodium
- capacitor
- low pressure
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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
A novel low pressure sodium lamp ballast circuit is composed of a rectifying circuit, a power-factor correction circuit, a half-bridge inverter circuit, a low pressure sodium lamp starting circuit and a drive control and protection circuit. The rectifying filter circuit is connected with an external alternating current power supply. The low pressure sodium lamp starting circuit is connected with a low pressure sodium lamp. AC mains supply is converted into direct current after rectification. Through the power-factor correction circuit and the drive control and protection circuit, direct current makes the half-bridge inverter circuit and the low pressure sodium lamp starting circuit work and then does work on the low pressure sodium lamp.
Description
Technical field
The utility model relates to lighting ballast technical field, espespecially a kind of New Low Voltage sodium lamp ballast circuit.
Background technology
progress along with society, the anxiety of expanding economy and the energy, people need day by day can energy savings, with low cost, improve the low-pressure sodium lamp ballast of lighting environment, simultaneously up-to-date power electronic technology is applied in electric lighting and goes, and low-pressure sodium lamp is in the electric light source of present all gas Discharge illuminating, the highest with its light efficiency, long service life and day by day obtain people's favor, application places is also in continuous expansion, what traditional low-pressure sodium lamp ballast used is self coupling leakage field frequency inductance formula ballast, because of own vol large, weight is high, own loss is large, under the condition of power frequency power supply, obvious stroboscopic effect is arranged, affected the raising of low-pressure sodium lamp light efficiency, power output changes greatly with the fluctuation of supply power voltage, energy consumption is high, and had a strong impact on the useful life of low-pressure sodium lamp pipe.Electric ballast all is better than inductance ballast in control performance, operation characteristic, economic benefit and Costco Wholesale, and the distinctive structure of low-pressure sodium lamp and performance are had higher requirement to circuit of electronic ballast.
Summary of the invention
A kind of New Low Voltage of the utility model sodium lamp ballast circuit is characterized in that providing a kind of working stability for above-mentioned deficiency, has the low-pressure sodium lamp ballast circuit of low-power consumption startup, the stagnant ring of under-voltage protection.
To achieve these goals; technical solution of the present utility model is: a kind of New Low Voltage sodium lamp ballast circuit is by rectification circuit, circuit of power factor correction, half-bridge inversion circuit, low-pressure sodium lamp start-up circuit and drives the control and protection the electric circuit constitute; current rectifying and wave filtering circuit is connected with external ac power source, and the low-pressure sodium lamp start-up circuit is connected with the low-pressure sodium lamp pipe.
Described rectification circuit is made of cartridge fuse FU, diode D1～D4, capacitor C 1.
Described circuit of power factor correction is made of integrated chip U1, Industrial Frequency Transformer T1, resistance R 1～R11, capacitor C 2～C7, electrochemical capacitor C8 and C9, power MOSFET tube Q1, voltage stabilizing didoe D6 and diode D5, D7 and D8.
Described driving control and protection circuit is made of integrated U2, diode D9～D10, resistance R 12 and R13, electrochemical capacitor C10, capacitor C 11～C13 and voltage induced inductance L 2.
Described half-bridge inversion circuit is made of resistance R 14 and R15, power MOSFET tube Q2 and Q3 and diode D11 and D12.
Described low-pressure sodium lamp start-up circuit is to be made of inductance L 1, capacitor C 14 and C15.
the beneficial effects of the utility model are: electric main is converted into direct current after rectification, direct current is through circuit of power factor correction, by driving the control and protection circuit, make half-bridge inversion circuit and the work of low-pressure sodium lamp start-up circuit, low-pressure sodium lamp is done work, after startup, by voltage induced inductance L 2, the inductance feed circuit that diode D10 and capacitor C 13 form is powered to integrated U2, when without tube load, the induced voltage of voltage induced inductance L 2 is 0V, can't be to integrated U2 be powered, U2 quits work, drive in the control and protection circuit, through resistance R 12 and electrochemical capacitor C10, the pin one of U2 is powered, reach the starting resistor of U2 when supply power voltage after, U2 starts working again, repetition has just formed the discontinuous operation state like this, improved the useful life of ballast.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing 2 is circuit theory diagrams of the present utility model.
In figure: 01, rectification circuit, 02, circuit of power factor correction, 03, half-bridge inversion circuit, 04, the low-pressure sodium lamp start-up circuit, 05, drive the control and protection circuit.
Embodiment
shown in accompanying drawing: a kind of New Low Voltage sodium lamp ballast circuit is by rectification circuit 01, circuit of power factor correction 02, half-bridge inversion circuit 03, low-pressure sodium lamp start-up circuit 04 and driving control and protection circuit 05 form, described rectification circuit is by cartridge fuse FU, diode D1～D4, capacitor C 1 consists of, circuit of power factor correction is by integrated chip U1, Industrial Frequency Transformer T1, resistance R 1～R11, capacitor C 2～C7, electrochemical capacitor C8 and C9, power MOSFET tube Q1, voltage stabilizing didoe D6 and diode D5, D7 and D8 consist of, drive the control and protection circuit by integrated U2, diode D9～D10, resistance R 12 and R13, electrochemical capacitor C10, capacitor C 11～C13 and voltage induced inductance L 2 consist of, half-bridge inversion circuit is by resistance R 14 and R15, power MOSFET tube Q2 and Q3 and diode D11 and D12 consist of, the low-pressure sodium lamp start-up circuit is by inductance L 1, capacitor C 14 and C15 consist of.
current rectifying and wave filtering circuit 01 is connected with external ac power source, low-pressure sodium lamp start-up circuit 04 is connected with the low-pressure sodium lamp pipe, the positive terminal of diode D1 and D3 is connected with the primary coil N1 of resistance R 4 and Industrial Frequency Transformer T1, the other end of N1 respectively with diode D8, resistance R 8 is connected with the drain electrode of power MOSFET tube Q1, the other end of diode D8 is connected with the source electrode of resistance R 12 with power MOSFET tube Q2 respectively, the pin one of integrated U1 is connected with the contact of resistance R 8 and R9, another termination power ground of resistance R 9, capacitor C 6 is with in parallel with capacitor C 7 again after resistance R 6 is connected, its two ends are connected to respectively pin one and the pin two of integrated U1, the pin 4 of integrated U1 is connected with resistance R 10 with capacitor C 5 respectively, the pin 5 of integrated U1 is connected with resistance R 1 with the sampling coil N2 of Industrial Frequency Transformer T1 by resistance R 2, another termination power ground of sampling coil N2, the other end of resistance R 1 is connected with voltage stabilizing didoe D6 with diode D5 respectively by capacitor C 3, the pin 8 of the anodal termination U1 of diode D5, the pin 6 of integrated U1 connects power supply ground, the pin 7 of integrated U1 is connected with the grid of power MOSFET tube Q1 by resistance R 7 as output, the pin 8 of integrated U1 connects power supply ground by electrochemical capacitor C8 and capacitor C 4, and be connected with pin 3 with R4 by resistance R 3, pin 3 connects power supply ground by resistance R 5 and capacitor C 2 respectively, diode D8 connects the pin one of integrated U2 by resistance R 12, the pin one of U2 connects power supply ground by voltage stabilizing didoe D9 and electrochemical capacitor C10, the pin two of U2 connects power supply ground, the pin 3 of U2 and pin 4 connect power supply ground by resistance R 13 and capacitor C 12 respectively, the pin 7 of U2 is connected with the grid of power MOSFET tube Q2 and Q3 with R15 by resistance R 14 respectively with pin 5, diode D11 and D12 are connected to respectively the two ends of resistance R 14 and R15, connect capacitor C 11 between the pin 6 of U2 and pin 8, the drain electrode of power MOSFET tube Q2 and the pin 6 and the capacitor C 14 that are connected to U2 after the source electrode of Q3 is connected, the drain electrode of power MOSFET tube Q2 connects power supply ground, another termination inductance L 1 of capacitor C 14, the other end of inductance L 1 is connected with fluorescent tube with capacitor C 15 respectively, the other end of capacitor C 15 and the other end of fluorescent tube connect respectively power supply ground.
during use, electric main is converted into direct current after rectification, direct current is through circuit of power factor correction 02, by driving control and protection circuit 05, make half- bridge inversion circuit 03 and 04 work of low-pressure sodium lamp start-up circuit, low-pressure sodium lamp is done work, after startup, by voltage induced inductance L 2, the inductance feed circuit that diode D10 and capacitor C 13 form is powered to integrated U2, when without tube load, the induced voltage of voltage induced inductance L 2 is 0V, can't be to integrated U2 be powered, U2 quits work, drive in control and protection circuit 05, through resistance R 12 and electrochemical capacitor C10, the pin one of U2 is powered, reach the starting resistor of U2 when supply power voltage after, U2 starts working again, repetition has just formed the discontinuous operation state like this, can improve the useful life of ballast.
The above; execution mode is only that preferred implementation of the present utility model is described; be not that scope of the present utility model is limited; under the prerequisite of the spirit that does not break away from the utility model technology; various distortion and improvement that this area engineers and technicians make the technical solution of the utility model all should fall in the definite protection range of claims of the present utility model.
Claims (1)
1. New Low Voltage sodium lamp ballast circuit, it is characterized in that: described low-pressure sodium lamp electronic drive circuit is comprised of rectification circuit, circuit of power factor correction, Drive and Control Circuit, protective circuit, half-bridge inversion circuit and low-pressure sodium lamp start-up circuit, and described circuit of power factor correction is made of integrated chip U1, Industrial Frequency Transformer T1, resistance R 1～R10, capacitor C 4～C8, electrochemical capacitor C1 and C2, power MOSFET tube Q1 and diode D5 and D6; Described driving is controlled and is made of integrated U2, inductance L 1, diode D8, D9 and D12, resistance R 11 and R12, electrochemical capacitor C10 and capacitor C 11～C13; Described protective circuit is made of controllable silicon SCR, resistance R 13 and electrochemical capacitor C9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205896939U CN202979436U (en) | 2012-11-11 | 2012-11-11 | Novel low pressure sodium lamp ballast circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205896939U CN202979436U (en) | 2012-11-11 | 2012-11-11 | Novel low pressure sodium lamp ballast circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202979436U true CN202979436U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205896939U Expired - Fee Related CN202979436U (en) | 2012-11-11 | 2012-11-11 | Novel low pressure sodium lamp ballast circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202979436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320897A (en) * | 2014-11-04 | 2015-01-28 | 太仓电威光电有限公司 | Electronic ballast for high pressure sodium lamp |
-
2012
- 2012-11-11 CN CN2012205896939U patent/CN202979436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320897A (en) * | 2014-11-04 | 2015-01-28 | 太仓电威光电有限公司 | Electronic ballast for high pressure sodium lamp |
| CN104320897B (en) * | 2014-11-04 | 2018-08-28 | 太仓电威光电有限公司 | Electronic ballast of high voltage sodium lamp |
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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: 20130605 Termination date: 20131111 |