CN203181333U - Low-pressure sodium lamp high frequency ballast - Google Patents
Low-pressure sodium lamp high frequency ballast Download PDFInfo
- Publication number
- CN203181333U CN203181333U CN2013201698469U CN201320169846U CN203181333U CN 203181333 U CN203181333 U CN 203181333U CN 2013201698469 U CN2013201698469 U CN 2013201698469U CN 201320169846 U CN201320169846 U CN 201320169846U CN 203181333 U CN203181333 U CN 203181333U
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- China
- Prior art keywords
- diode
- electric capacity
- resistance
- integrated circuit
- power switch
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- 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
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model discloses a low-pressure sodium lamp high frequency ballast which comprises an integrated circuit, a first power switch tube, a second power switch tube, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor and a sodium lamp. The low-pressure sodium lamp high frequency ballast can realize power-consumption-free preheating starting; when the low-pressure sodium lamp is in a stable working state, suitable and stable working current is provided to avoid severe pollution to the power grid; the high power factor is achieved; safety and reliability are realized; and the light modulation is convenient.
Description
Technical field
The utility model relates to a kind of electronic component, relates in particular to a kind of low-pressure sodium lamp high frequency ballast.
Background technology
Low-pressure sodium lamp is the best light source of illuminating engineering reducing energy consumption, it is with its high light efficiency 200lm/W and long-life, look and see the resolution height, good contrast, advantage not influenced by ambient temperature and be widely used in road, overpass, high and the less demanding place of color rendering of visibility such as tunnel and intersection, what the past low-pressure sodium lamp used is traditional self coupling leakage inductance ballast, because of own vol big, the weight height, own loss big (18%), under the condition of power frequency power supply, tangible stroboscopic effect is arranged, thereby the light that has influenced low-pressure sodium lamp is put raising, and its power output changes greatly with the fluctuation of supply power voltage, current harmonic content is not easy control, may cause the electric current pollution of shoving to electrical network, has a strong impact on the working life of fluorescent tube, shortcomings such as energy consumption extra-high-speed have seriously restricted the extensive use of low-pressure sodium lamp.
The utility model content
The purpose of this utility model provides a kind of safe and reliable with regard to being in order to address the above problem, the low-pressure sodium lamp high frequency ballast of stable output power.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises integrated circuit, first power switch pipe, second power switch pipe, first diode, second diode, the 3rd diode, the 4th diode, the 5th diode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first electric capacity, second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and sodium vapor lamp, the output of power supply respectively with first end of described first resistance and described first power switch pipe drain electrode end be connected, the voltage input end of described integrated circuit is connected respectively at the positive pole of described first diode and the negative pole of described the 4th diode, the timing resistor input of described integrated circuit is connected with first end of described second resistance, the timing capacitor input of described integrated circuit is connected with first end of second end of described second resistance and described second electric capacity, the high-end metal-oxide-semiconductor gate-drive floating power supply end of described integrated circuit is connected with the negative pole of described first diode and first end of described the 3rd electric capacity respectively, the high-end gate pole output drive end of described integrated circuit is connected with the negative pole of described second diode and first end of described the 3rd resistance respectively, the high-end floating power supply return terminal end of described integrated circuit respectively with second end of described the 3rd electric capacity and the source electrode of described first power switch pipe, first end of described the 3rd electric capacity, first end of described the 5th resistance is connected with the drain electrode end of described second power switch pipe, the low side gate pole output of described integrated circuit is connected with first end of described the 4th resistance and the negative pole of described the 3rd diode respectively, described first power switch pipe grid be connected with the positive pole of described second diode and second end of described the 3rd resistance respectively, the grid of described second power switch pipe is connected with second end of described the 4th resistance and the positive pole of described the 3rd diode respectively, the source electrode of described second power switch pipe respectively with the low side return terminal of described integrated circuit, second end of described second electric capacity, second end of described first electric capacity, the positive pole of described the 5th diode, first end of described the 5th electric capacity, first end of described sodium vapor lamp and the earth terminal of described power supply are connected, the negative pole of described the 5th diode is connected with first end of described the 4th electric capacity, second end of described the 4th electric capacity is connected with second end of described the 5th resistance and the positive pole of described the 4th diode respectively, first end that second end of described the 3rd electric capacity is connected with described first inductance connects, and second end of described first inductance is connected with second end of described the 5th electric capacity and second end of described sodium vapor lamp respectively.
The beneficial effects of the utility model are:
The utility model can realize not having the power consumption pipeline start up by preheating, after low-pressure sodium lamp enters steady operation, provides suitable stable operating current, and preventing that electrical network is caused severe contamination, and it is safe and reliable to obtain High Power Factor, is convenient to light modulation.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises integrated circuit (IC), first power switch tube S 1, second power switch tube S 2, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5 and sodium vapor lamp LAMP, the output of power supply U respectively with first end of first resistance R 1 and first power switch tube S 1 drain electrode end be connected, the voltage input end VCC of integrated circuit (IC) is connected respectively at the positive pole of the first diode D1 and the negative pole of the 4th diode D4, the timing resistor input RT of integrated circuit (IC) is connected with first end of second resistance R 2, the timing capacitor input CT of integrated circuit (IC) is connected with first end of second end of second resistance R 2 and second capacitor C 2, the high-end metal-oxide-semiconductor gate-drive floating power supply end VB of integrated circuit (IC) is connected with the negative pole of the first diode D1 and first end of the 3rd capacitor C 3 respectively, the high-end gate pole output drive end HO of integrated circuit (IC) is connected with the negative pole of the second diode D2 and first end of the 3rd resistance R 3 respectively, the high-end floating power supply return terminal VS of integrated circuit (IC) respectively with second end of the 3rd capacitor C 3 and the source electrode of first power switch tube S 1, first end of the 3rd capacitor C 3, first end of the 5th resistance R 5 is connected with the drain electrode end of the second power switch pipe D2, the low side gate pole output LO of integrated circuit (IC) is connected with first end of the 4th resistance R 4 and the negative pole of the 3rd diode D3 respectively, first power switch tube S 1 grid be connected with the positive pole of the second diode D2 and second end of the 3rd resistance R 3 respectively, the grid of second power switch tube S 2 is connected with second end of the 4th resistance R 4 and the positive pole of the 3rd diode D3 respectively, the source electrode of second power switch tube S 2 respectively with the low side return terminal COM of integrated circuit (IC), second end of second capacitor C 2, second end of first capacitor C 1, the positive pole of the 5th diode D5, first end of the 5th capacitor C 5, first end of sodium vapor lamp LAMP is connected with the earth terminal of power supply U, the negative pole of the 5th diode D5 is connected with first end of the 4th capacitor C 4, second end of the 4th capacitor C 4 is connected with second end of the 5th resistance R 5 and the positive pole of the 4th diode D4 respectively, first end that second end of the 3rd capacitor C 3 is connected with first inductance L 1 connects, and second end of first inductance L 2 is connected with second end of the 5th capacitor C 5 and second end of sodium vapor lamp LAMP respectively.
The utility model has adopted integrated circuit to drive chip I R2153, the signal of two MOSFET power switch pipes about it can provide in very clean the driven half-bridge inversion circuit of two-way.This integrated circuit is self-excitation, contains the RC oscillator of similar 555 timers, and its frequency of oscillation can be adjusted by the parameter that changes external RC assembly.In addition, integrated circuit also has many other advantages, as: be convenient to light modulation, introduce no power consumption pipeline start up by preheating, increase defencive function etc.
As shown in Figure 1, operation principle of the present utility model is: obtain direct current 360V voltage through the prime booster circuit, charge to capacitor C 1 through R1 during startup, when being charged to the starting resistor of IR2153, the chip operate as normal, it is S1 and S2 that generation PWM ripple drives two MOSFET, make it conducting in turn and end, VS end (pin 6) output amplitude is about half of direct voltage at the center point, be 360V/2, its duty ratio is about 50% square-wave signal, the starter signal is provided for sodium vapor lamp LAMP through inductance L 1 and capacitor C 3 and C5.During the S2 conducting, VCC is by the bootstrap capacitor C3 charging of bootstrap diode D1, make VB (pin 8) voltage ratio H0 (pin 7) voltage exceed VCC, for lC inside high-side driver level provides DC power supply, the C3 that is connected to VS end (pin 6) plays damping action, can reduce the noise radiation in square wave output forward position, the afterflow effect of couple S1, S2 is also arranged.It by D2, D3 rectification, supplies with VCC (pin 1) direct voltage of IR2153 to reduce power consumption with half-bridge midpoint voltage simultaneously.
Start-up circuit has adopted the LC series resonant converter, and it is a kind of circuit topology that is widely used in electric ballast, is particularly suitable for using in electric ballasts such as fluorescent lamp, low-pressure sodium lamp.The LC controlled resonant converter is made up of first inductance L 1, the 3rd capacitor C 3 and the 4th capacitor C 4, before low-pressure sodium lamp started, because low-pressure sodium lamp does not have filament, and the inert gas of filling in the electric arc tube did not gasify, so lamp is in quite high impedance state, can think that lamp is in open-circuit condition.In half-bridge LC controlled resonant converter, the 3rd capacitor C 3 and the 4th capacitor C 4 are cascaded and first inductance L 1 resonance under AC power drives jointly, thereby produce high voltage at the 5th capacitor C 5 two ends, in the half-bridge LC of steady operation controlled resonant converter, the 3rd capacitor C 3 and first inductance L 1 are the lamp load power supply under AC power drives, provide steady operation required running current, in the 5th capacitor C 5, pass through very little by-pass current.
Claims (1)
1. low-pressure sodium lamp high frequency ballast, it is characterized in that: comprise integrated circuit, first power switch pipe, second power switch pipe, first diode, second diode, the 3rd diode, the 4th diode, the 5th diode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, first electric capacity, second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and sodium vapor lamp, the output of power supply respectively with first end of described first resistance and described first power switch pipe drain electrode end be connected, the voltage input end of described integrated circuit is connected with the positive pole of described first diode and the negative pole of described the 4th diode respectively, the timing resistor input of described integrated circuit is connected with first end of described second resistance, the timing capacitor input of described integrated circuit is connected with first end of second end of described second resistance and described second electric capacity, the high-end metal-oxide-semiconductor gate-drive floating power supply end of described integrated circuit is connected with the negative pole of described first diode and first end of described the 3rd electric capacity respectively, the high-end gate pole output drive end of described integrated circuit is connected with the negative pole end of described second diode and first end of described the 3rd resistance respectively, the high-end floating power supply return terminal of described integrated circuit respectively with second end of described the 3rd electric capacity, the source terminal of described first power switch pipe, first end of described the 3rd electric capacity, first end of described the 5th resistance is connected with the drain electrode end of described second power switch pipe, the low side gate pole output of described integrated circuit is connected with first end of described the 4th resistance and the negative pole of described the 3rd diode respectively, described first power switch pipe grid be connected with the positive pole of described second diode and second end of described the 3rd resistance respectively, the grid of described second power switch pipe is connected with second end of described the 4th resistance and the positive pole of described the 3rd diode respectively, the source electrode of described second power switch pipe respectively with the low side return terminal of described integrated circuit, second end of described second electric capacity, second end of described first electric capacity, the positive pole of described the 5th diode, first end of described the 5th electric capacity, first end of described sodium vapor lamp and the earth terminal of described supply voltage are connected, the negative pole of described the 5th diode is connected with first end of described the 4th electric capacity, second end of described the 4th electric capacity is connected with second end of described the 5th resistance and the positive pole of described the 4th diode respectively, second end of described the 3rd electric capacity is connected with described first inductance, first end, and second end of described first inductance is connected with second end of described the 5th electric capacity and second end of described sodium vapor lamp respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201698469U CN203181333U (en) | 2013-04-08 | 2013-04-08 | Low-pressure sodium lamp high frequency ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201698469U CN203181333U (en) | 2013-04-08 | 2013-04-08 | Low-pressure sodium lamp high frequency ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203181333U true CN203181333U (en) | 2013-09-04 |
Family
ID=49077985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201698469U Expired - Fee Related CN203181333U (en) | 2013-04-08 | 2013-04-08 | Low-pressure sodium lamp high frequency ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203181333U (en) |
-
2013
- 2013-04-08 CN CN2013201698469U patent/CN203181333U/en not_active Expired - Fee Related
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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: 20130904 Termination date: 20140408 |