CN203151849U - Energy-saving electronic ballast and light fixture - Google Patents
Energy-saving electronic ballast and light fixture Download PDFInfo
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- CN203151849U CN203151849U CN201320134910XU CN201320134910U CN203151849U CN 203151849 U CN203151849 U CN 203151849U CN 201320134910X U CN201320134910X U CN 201320134910XU CN 201320134910 U CN201320134910 U CN 201320134910U CN 203151849 U CN203151849 U CN 203151849U
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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 utility model provides an energy-saving electronic ballast. The energy-saving electronic ballast is connected with a fluorescent tube, and comprises a power factor correction circuit and a drive circuit, wherein the drive module includes an oscillation-starting module and a high-frequency high-voltage module, the oscillation-starting module is connected with the power factor correction circuit, one end of the high-frequency high-voltage module is connected with the oscillation-starting module, and the other end of the high-frequency high-voltage module is connected with the fluorescent tube. The utility model further provides a light fixture. The energy-saving electronic ballast provided by the utility model can increase the power factor so as to enable the circuit to be energy-saving, and has the advantages of wide voltage fluctuation range, no noise, small electromagnetic interference and high start speed.
Description
Technical field
The utility model relates to a kind of energy-saving electronic ballast, relates in particular to a kind of energy-saving electronic ballast and light fixture.
Background technology
The tradition gaseous discharge lamp all is to carry out powered operation with Inductive ballast, trigger, building-out capacitor, this combination exists that power factor is low, electric energy loss is excessive, inadequately energy-conservation, the voltage fluctuation influence is big, toggle speed waits problem slowly.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiency that above-mentioned prior art exists, and a kind of energy-saving electronic ballast and light fixture are proposed, can solve that power factor is low, electric energy loss is excessive, inadequately energy-conservation, the voltage fluctuation influence is big, toggle speed waits problem slowly.
For solving the problems of the technologies described above, the utility model proposes a kind of energy-saving electronic ballast, it connects fluorescent tube, and it comprises: circuit of power factor correction; And drive circuit, driver module comprises starting of oscillation module and high-frequency and high-voltage module, and the starting of oscillation module connects circuit of power factor correction, and an end of high-frequency and high-voltage module connects the starting of oscillation module, and the other end of high-frequency and high-voltage module connects fluorescent tube.
Preferably, circuit of power factor correction comprises: power factor controller, first power switch, boost inductance, first booster diode, second booster diode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and first electric capacity, boost inductance comprises first input end, second input, first output, second input, power factor controller comprises first input end, second input and output, first power switch comprises control end, input and earth terminal, first resistance, second resistance and the 3rd resistance are connected between power supply and the ground successively, second resistance is connected the first input end of power factor controller with the junction of the 3rd resistance, the first input end of boost inductance connects power supply, second input of boost inductance connects second input of power factor controller, second output of boost inductance connects ground connection behind the 4th resistance and the 5th resistance, first booster diode is in parallel with second booster diode, the anode of first booster diode connects first output of boost inductance, the negative electrode of first booster diode connects behind first electric capacity to driver module, the input of first power switch connects first output of boost inductance, the control end of first power switch connects the output of power factor controller, the output head grounding of first power switch.
Preferably, first power switch is metal-oxide-semiconductor, and the grid of metal-oxide-semiconductor is the control end of first power switch, and the source electrode of metal-oxide-semiconductor is the input of first power switch, and the drain electrode of metal-oxide-semiconductor is the output of first power switch.
Preferably, first resistance and second resistance are 1.5M Ω, and the resistance value of the 3rd resistance is 15K Ω, and the resistance value of the 4th resistance is 41K Ω, and the resistance value of the 5th resistance is 7.5K Ω.
Preferably, energy-saving electronic ballast also comprises current rectifying and wave filtering circuit, and current rectifying and wave filtering circuit is connected between power supply and the circuit of power factor correction.
Preferably, the model of power factor controller is MC33262.
The utility model also proposes a kind of light fixture, comprises aforesaid energy-saving electronic ballast.
Compared with prior art, energy-saving electronic ballast of the present utility model and light fixture, by increasing the design of circuit of power factor correction and drive circuit, can improve power factor, make circuit more energy-conservation, and scope range of the fluctuation of voltage is wide, noiseless, electromagnetic interference is little, and toggle speed improves.
Description of drawings
Fig. 1 is the schematic diagram of energy-saving electronic ballast of the present utility model.
Reference Numerals are as follows: Power factor correction circuit 1: Power factor controller IC1 first power switch Q1 boost inductor T1 first boost diode S1 second boost diode S2 first diode D1 second diode D2 first resistor R1 second resistor R2 third resistor R3 fourth resistor R4 fifth resistor R5 sixth resistor R6 seventh resistor R7 eighth resistor R8 first capacitor C1 second capacitor C2 third capacitor C3 fourth capacitor C4 fifth capacitor C5 sixth capacitor C6 inductance L1 drive circuit 2: The start-up module 21 second power switch Q2 third power switch Q3 frequency and high voltage module 22 transformer LD seventh capacitor C7 eighth capacitor C8 rectifier filter circuit 3: The first filter capacitor C9 second filter capacitor C10 rectifier bridge D1 fluorescent tube 4.
Embodiment
In order to further specify principle of the present utility model and structure, now by reference to the accompanying drawings preferred embodiment of the present utility model is elaborated.
See also Fig. 1, energy-saving electronic ballast of the present utility model, it connects fluorescent tube 4, and it comprises: current rectifying and wave filtering circuit 3, circuit of power factor correction 1 and drive circuit 2.Current rectifying and wave filtering circuit 3 is connected between power supply and the circuit of power factor correction 1.Drive circuit 2 connects circuit of power factor correction 1 and fluorescent tube 4.
Current rectifying and wave filtering circuit 3 comprises the first filter capacitor C9, the second filter capacitor C10 and rectifier bridge D1.The first filter capacitor C9 and the second filter capacitor C10 are connected between power supply and the ground, the junction ground connection of the first filter capacitor C9 and the second filter capacitor C10.The first filter capacitor C9 and the second filter capacitor C10 are connected between the first input end and second input of rectifier bridge D1, and first output of rectifier bridge D1 is connected circuit of power factor correction 1 with second output.
Circuit of power factor correction 1 comprises power factor controller IC1, the first power switch Q1, boost inductance T1, the first booster diode S1, the second booster diode S2, the first diode D1, the second diode D2, inductance L 1, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5 and the 6th capacitor C 6.
Boost inductance T1 comprises first input end, second input, first output, second input.Power factor controller IC1 comprises first input end, second input and output.The first power switch Q1 comprises control end, input and earth terminal.
First resistance R 1, second resistance R 2 and the 3rd resistance R 3 are connected between power supply and the ground successively, and second resistance R 2 is connected the first input end of power factor controller IC1 with the junction of the 3rd resistance R 3.Second capacitor C 2 is in parallel with the 3rd resistance R 3.The first input end of boost inductance T1 connects power supply, and second input of boost inductance T1 connects second input of power factor controller IC1, and second output of boost inductance T1 connects the 4th resistance R 4 and the 5th resistance R 5 back ground connection.The first booster diode S1 is in parallel with the second booster diode S2, the anode of the first booster diode S1 connects first output of boost inductance T1, the negative electrode of the first booster diode S1 connects first capacitor C, 1 back to driver module, the input of the first power switch Q1 connects first output of boost inductance T1, the control end of the first power switch Q1 connects the output of power factor controller IC1, the output head grounding of the first power switch Q1.
In the present embodiment, the model of power factor controller IC1 is MC33262, therefore, the first input end of power factor controller IC1 is the pin 3 of MC33262, second input of power factor controller IC1 is the pin 5 of MC33262, and the output of power factor controller IC1 is the pin 7 of MC33262.
Be specially, the 7th resistance R 7 and the 8th resistance R 8 are connected between the pin 8 of the first input end of boost inductance T1 and power factor controller IC1, the first diode D1 is connected between the pin 8 of second input of boost inductance T1 and power factor controller IC1, and the pin 8 of power factor controller IC1 connects the 3rd capacitor C 3 back ground connection.The pin two of power factor controller IC1 connects the 4th capacitor C 4 back ground connection, pin 6 ground connection of power factor controller IC1.The pin 4 of power factor controller IC1 connects the 5th capacitor C 5 back ground connection, is connected with the tenth resistance R 10 between the pin 4 of power factor controller IC1 and the output of the first power switch Q1.The pin one of power factor controller IC1 connects the junction of the 4th resistance R 4 and the 5th resistance R 5, and the 4th resistance R 4 is connected the 7th capacitor C 7 back ground connection with the junction of the 5th resistance R 5.Be connected with the 9th resistance R 9, the nine resistance R 9 are connected the 4th resistance R 4 and the 5th resistance R 5 with the junction of power switch Q1 junction between the pin 7 of power factor controller IC1 and the control end of power switch Q1.Be connected with the 6th resistance R 6 between the pin 5 of power factor controller IC1 and second input of boost inductance T1.Second input of boost inductance T1 connects the second diode D2, the 6th capacitor C 6 back ground connection.Second output head grounding of boost inductance T1.The second diode D2 is connected the 4th resistance R 4, the 5th resistance R 5 back ground connection with the junction of the 6th capacitor C 6.First output of boost inductance T1 connects the input that inductance L 1 back connects the first power switch Q1, and first output of boost inductance T1 connects the anode of the first booster diode S1.So just formed with power factor controller IC1 is the PFC(Power Factor Correction of core) the boost type pre-regulator, can improve the power factor of incoming line.
Drive circuit 2 comprises starting of oscillation module 21 and high-frequency and high-voltage module 22.
Starting of oscillation module 21 connects circuit of power factor correction 1.Starting of oscillation module 21 comprises the second power switch Q2 and the 3rd power switch Q3.The second power switch Q2 and the 3rd power switch Q3 connect high-frequency and high-voltage module 22.
High-frequency and high-voltage module 22 comprises transformer LD, the 7th capacitor C 7 and the 8th capacitor C 8.The end of transformer LD connects starting of oscillation module 21.One end of the 7th capacitor C 7 and the 8th capacitor C 8 connects transformer LD, and the other end of the 7th capacitor C 7 and the 8th capacitor C 8 connects fluorescent tube 4.
In the present embodiment, the first power switch Q1 is metal-oxide-semiconductor.The grid of metal-oxide-semiconductor is the control end of the first power switch Q1, and the source electrode of metal-oxide-semiconductor is the input of the first power switch Q1, and the drain electrode of metal-oxide-semiconductor is the output of the first power switch Q1.
Among other embodiment, the first power switch Q1 is triode.The base stage of triode is the control end of the first power switch Q1, and the current collection of triode is the input of the first power switch Q1 very, and the emission of triode is the output of the first power switch Q1 very.
In the present embodiment, first resistance R 1 and second resistance R 2 are 1.5M Ω, and the resistance value of the 3rd resistance R 3 is 15K Ω, and the resistance value of the 4th resistance R 4 is 41K Ω, and the resistance value of the 5th resistance R 5 is 7.5K Ω, and the resistance value of the 6th resistance R 6 is 22K Ω.The capacitance of first capacitor C 1 is 47 μ F, and the capacitance of second capacitor C 2 is 10nF, and the capacitance of the 4th capacitor C 4 is 680nF.
The utility model also proposes a kind of light fixture, comprises above-mentioned energy-saving electronic ballast.
Describe operation principle of the present utility model in detail below in conjunction with Fig. 1.
The 220V alternating voltage is through transformer LD, behind the current rectifying and wave filtering circuit 3, be in the PFC pre-adjustment circuit of core at power factor controller IC1, the voltage (without smothing filtering) of full-wave rectification output is through first resistance R 1, after second resistance R 2 and the 3rd resistance R 3 dividing potential drops, 3 pin monitoring by power factor controller IC1, VD is then passed through power factor controller IC1 after the 4th resistance R 4 and the sampling of the 5th resistance R 5 dividing potential drops 5 pin detect, the source resistance R7 of the first power switch Q1 as detect by boost inductance T1 peak current also, received by 4 pin of power factor controller IC1.
The peak current of power factor controller IC1 output pulse width modulation (PWM) signal controlling first power switch Q1 changes its variation with input voltage.When the first power switch Q1 conducting, the first booster diode S1 and the second booster diode S2 end, and when the first power switch Q1 blocks, the first booster diode S1 and the second then conducting of booster diode S2, thereby make alternating current continuous flow, alternating current and alternating voltage keep identical phase place, and are proportional to the variation of AC-input voltage, make the interchange input current be sinusoidal waveform, load almost is resistive.Exchange Harmonics of Input and satisfy GB/t15144 and IEC929 standard code, the power factor of whole system is almost close to 1.Simultaneously, when AC-input voltage changes in very large scope, first capacitor C, 1 two ends burning voltage is 160V, thereby make ballast output power stable, the output of fluorescent tube 4 light is constant, the fatigue that can avoid eyes to occur because of light flash, the while also is conducive to prolong the useful life of fluorescent lamp.
The LC series resonant circuit that transformer LD, the 7th capacitor C 7 and the 8th capacitor C 8 are formed produces resonance frequency, because the resonance cause produces high voltage at fluorescent tube 4 two ends, the gas breakdown in the fluorescent tube 4 is lighted.In case lamp is activated, the resonance point step-down of circuit, its output frequency is down to normal operating conditions again.Operating frequency changes with the variation of load, thereby it is stable constant with lighting tube brightness to control power output.
Compared with prior art, energy-saving electronic ballast of the present utility model and light fixture, by increasing the design of circuit of power factor correction and drive circuit, can improve power factor, make circuit more energy-conservation, and scope range of the fluctuation of voltage is wide, noiseless, electromagnetic interference is little, and toggle speed improves.
The above only is preferable possible embodiments of the present utility model, and unrestricted protection range of the present utility model.The equivalent structure that all utilization the utility model specifications and accompanying drawing content have been done changes, and all is included in the protection range of the present utility model.
Claims (7)
1. energy-saving electronic ballast, it connects fluorescent tube, it is characterized in that it comprises:
Circuit of power factor correction; And
Drive circuit, described driver module comprises starting of oscillation module and high-frequency and high-voltage module, described starting of oscillation module connects described circuit of power factor correction, and an end of described high-frequency and high-voltage module connects described starting of oscillation module, and the other end of described high-frequency and high-voltage module connects described fluorescent tube.
2. energy-saving electronic ballast as claimed in claim 1, it is characterized in that, described circuit of power factor correction comprises: power factor controller, first power switch, boost inductance, first booster diode, second booster diode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance and first electric capacity, described boost inductance comprises first input end, second input, first output, second input, described power factor controller comprises first input end, second input and output, described first power switch comprises control end, input and earth terminal, described first resistance, second resistance and the 3rd resistance are connected between power supply and the ground successively, described second resistance is connected the first input end of described power factor controller with the junction of the 3rd resistance, the first input end of described boost inductance connects described power supply, second input of described boost inductance connects second input of described power factor controller, second output of described boost inductance connects ground connection behind described the 4th resistance and the 5th resistance, described first booster diode is in parallel with second booster diode, the anode of described first booster diode connects first output of described boost inductance, the negative electrode of described first booster diode connects behind described first electric capacity to described driver module, the input of described first power switch connects first output of described boost inductance, the control end of described first power switch connects the output of described power factor controller, the output head grounding of described first power switch.
3. energy-saving electronic ballast as claimed in claim 2, it is characterized in that, described first power switch is metal-oxide-semiconductor, the grid of described metal-oxide-semiconductor is the control end of described first power switch, the source electrode of described metal-oxide-semiconductor is the input of described first power switch, and the drain electrode of described metal-oxide-semiconductor is the output of described first power switch.
4. energy-saving electronic ballast as claimed in claim 2, it is characterized in that described first resistance and second resistance are 1.5M Ω, the resistance value of described the 3rd resistance is 15K Ω, the resistance value of described the 4th resistance is 41K Ω, and the resistance value of described the 5th resistance is 7.5K Ω.
5. energy-saving electronic ballast as claimed in claim 1 is characterized in that, described energy-saving electronic ballast also comprises current rectifying and wave filtering circuit, and described current rectifying and wave filtering circuit is connected between described power supply and the circuit of power factor correction.
6. energy-saving electronic ballast as claimed in claim 1 is characterized in that, the model of described power factor controller is MC33262.
7. a light fixture is characterized in that, comprises as any described energy-saving electronic ballast of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320134910XU CN203151849U (en) | 2013-03-22 | 2013-03-22 | Energy-saving electronic ballast and light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320134910XU CN203151849U (en) | 2013-03-22 | 2013-03-22 | Energy-saving electronic ballast and light fixture |
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| Publication Number | Publication Date |
|---|---|
| CN203151849U true CN203151849U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320134910XU Expired - Fee Related CN203151849U (en) | 2013-03-22 | 2013-03-22 | Energy-saving electronic ballast and light fixture |
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| Country | Link |
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| CN (1) | CN203151849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333965A (en) * | 2014-03-21 | 2015-02-04 | 东晨光电集团有限公司 | Novel high-efficiency energy-saving radio-frequency lamp |
| CN113328624A (en) * | 2020-11-17 | 2021-08-31 | 广东汇通信息科技股份有限公司 | DC-DC topology suitable for power supply of remote video monitoring system |
-
2013
- 2013-03-22 CN CN201320134910XU patent/CN203151849U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333965A (en) * | 2014-03-21 | 2015-02-04 | 东晨光电集团有限公司 | Novel high-efficiency energy-saving radio-frequency lamp |
| CN104333965B (en) * | 2014-03-21 | 2017-12-26 | 东晨光电集团有限公司 | Novel high-efficiency and energy-saving radio-frequency lamp |
| CN113328624A (en) * | 2020-11-17 | 2021-08-31 | 广东汇通信息科技股份有限公司 | DC-DC topology suitable for power supply of remote video monitoring system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20190322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |