CN101640966B - Power supply circuit of fluorescent lamp - Google Patents
Power supply circuit of fluorescent lamp Download PDFInfo
- Publication number
- CN101640966B CN101640966B CN2009101718475A CN200910171847A CN101640966B CN 101640966 B CN101640966 B CN 101640966B CN 2009101718475 A CN2009101718475 A CN 2009101718475A CN 200910171847 A CN200910171847 A CN 200910171847A CN 101640966 B CN101640966 B CN 101640966B
- Authority
- CN
- China
- Prior art keywords
- power supply
- fluorescent lamp
- output
- impedance matching
- inductor
- 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
Links
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a power supply circuit of a fluorescent lamp. The power supply of the fluorescent lamp can be provided by an alternating-current induction transformer or a direct-current power supply and an alternating-current high-frequency electronic transformer. The output end of the alternating-current high-frequency electronic transformer is connected with the input end of a rectification filter circuit, the output end of the rectification filter circuit is connected with the input end of a high-frequency inverter, the output end of the high-frequency inverter is connected with the fluorescent lamp, and an impedance matching component comprising a resistor and/or an inductor is connected between the output end of the alternating-current high-frequency electronic transformer and the input end of the rectification filter circuit, or an impedance matching component comprising an inductor and a diode or an inductor, a diode and a resistor is connected between the output end of the rectification filter circuit and the input end of the high-frequency inverter. By the connection of the impedance matching component, the capacitive load in the original circuit can be converted into a resistive load. The improved circuit can be completely suitable for the electric power supply of the alternating-current low-voltage energy-saving type fluorescent lamp.
Description
Technical field
The present invention relates to light fixture, be specifically related to a kind of power supply circuits of energy-saving fluorescent lamp.
Background technology
Well-known fluorescent lamp luminous efficiency is than the high 4-5 of Halogen lamp LED times, and in existing numerous common low-pressure energy-saving type fluorescent lamp, most with DC power supply, minority is with the frequency inductance transformer-supplied.And existing fluorescent lamp can't directly insert in the interchange high-frequency electronic transformer into the Halogen lamp LED power supply.As shown in Figure 1; Low-pressure energy-saving type fluorescent lamp inserts the power supply circuits of Halogen lamp LED at present; Be between transformer output of interchange high-frequency electronic and high-frequency inverter, directly to have inserted current rectifying and wave filtering circuit; If directly energy-saving fluorescent lamp is inserted in the sort circuit, interchange high-frequency electronic transformer will be burnt out.The alternating current that exchanges the output of high-frequency electronic transformer is the high-frequency alternating current that the 50HZ AC power is modulated to 20～30KHZ, and the load that is connected can only be applicable to that ohmic low pressure halogen lamp uses, and is not suitable for the capacitive load of this type of current rectifying and wave filtering circuit.And the required power supply of low-pressure energy-saving type lamp fluorescent lamp; Must be earlier become behind the direct current fluorescent lamp could operate as normal the high-frequency ac power rectifying and wave-filtering; The big capacity electrochemical capacitor that filtering is required; To make entire circuit be rendered as capacity load, if with in the direct incoming transport high-frequency electronic of the circuit shown in Figure 1 transformer, with electric current increase in the resonant circuit instantaneous time that causes the switch triode that exchanges in the high-frequency electronic transformer and transformer to form more than 10 times.Exchange the high-frequency electronic transformer at short notice and low-pressure energy-saving type fluorescent lamp also can keep its operating state; Exchange high-frequency electronic transformer generation high temperature but work long hours with making; Exchange high-frequency electronic transformer output voltage simultaneously and can become extremely unstable, in the work of longer time, will make electricity-saving lamp or electronic transformer burns.If interchange high-frequency electronic transformer can just need be improved the structure of existing fluorescent lamp power supply circuits normally for the energy-saving fluorescent lamp power supply.
Summary of the invention
The objective of the invention is to overcome defective of the prior art; Design a kind of power supply circuits of fluorescent lamp; These power supply circuits can make the interchange high-frequency electronic transformer into the Halogen lamp LED power supply, insert through impedance matching device and also can be the energy-saving fluorescent lamp normal power supply, and it is little that this circuit also possesses volume; It is low to consume energy, the characteristics that can not generate heat during work.
For realizing above-mentioned purpose; Technical scheme of the present invention is the power supply circuits of a kind of fluorescent lamp of design; This fluorescent lamp is by AC inductance transformer or DC power supply or exchange the high-frequency electronic transformer power supply is provided; The output of wherein said interchange high-frequency electronic transformer is connected with the input of current rectifying and wave filtering circuit; The output of said current rectifying and wave filtering circuit is connected with the input of high-frequency inverter; The output of said high-frequency inverter is connected with said fluorescent lamp, it is characterized in that, between the input of the output of said interchange high-frequency electronic transformer and current rectifying and wave filtering circuit, inserts the impedance matching device that comprises that resistor and/or inductor constitute; Or between the input of the output of said current rectifying and wave filtering circuit and high-frequency inverter, insert and comprise inductor, diode, or the impedance matching device that constitutes of inductor, diode, resistor.
Wherein, Said current rectifying and wave filtering circuit comprises the bridge rectifier that is formed by connecting first to fourth diode; Output at said bridge rectifier is parallel with electrolytic capacitor, and first to fourth diode in the said bridge rectifier is selected fast recovery diode for use.
Wherein, said impedance matching device comprises, between the positive pole of the positive pole of said rectification circuit output end and said electrolytic capacitor, is parallel with said inductor and the 5th diode.
Wherein, said impedance matching device comprises, between the positive pole of the positive pole of said rectification circuit output end and said electrolytic capacitor, is parallel with said inductor, the 5th diode and first resistor.
Wherein, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said rectification circuit input end, is in series with first resistor.
Wherein, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said rectification circuit input end, is in series with inductor.
Wherein, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said rectification circuit input end, is in series with the inductor and first resistor.
Wherein, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said rectification circuit input end, is parallel with the inductor and first resistor.
Wherein, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said rectification circuit input end, is parallel with the inductor and first resistor, is in series with second resistor again.
Wherein, said current rectifying and wave filtering circuit, impedance matching device and said high-frequency inverter are installed in the housing of said fluorescent lamp lower end, and the pin that said housing lower end is connected with said interchange high-frequency electronic transformer is G4, G5.3, G6.35 or GU10 pin.
Advantage of the present invention and beneficial effect are: owing to after in the power supply circuits of original Halogen lamp LED, having inserted impedance matching device, make the power supply circuits of original Halogen lamp LED can be the power supply of energy-saving fluorescence normally.Because this impedance matching device is in current rectifying and wave filtering circuit, high-frequency inverter are loaded into the housing of fluorescent lamp lower end, and pin has adopted the standard pin of G4, G5.3, G6.35 or GU10.Therefore, this fluorescent lamp promptly can be by DC power supply, also can be by the AC inductance transformer-supplied, and can also be by exchanging the high-frequency electronic transformer-supplied.Because Halogen lamp LED can be substituted by low-pressure energy-saving type fluorescent lamp; So can make the existing fluorescent lamp of using the low-pressure energy-saving type with the place of Halogen lamp LED instead; So not only saves energy greatly can also reduce caloric value, and will be longer than the useful life of Halogen lamp LED the useful life of fluorescent lamp.The power supply circuits of this fluorescent lamp can be realized energy savings, reduce caloric value, the useful life of prolonging lamp tube, and the effect of reduction use cost, this circuit also has simple in structure, is easy to the characteristics of processing and manufacturing.
Description of drawings
Fig. 1 is the power supply circuit of existing fluorescence;
Fig. 2 is one of power supply circuit of fluorescence of the present invention;
Fig. 3 be fluorescence of the present invention power supply circuit two;
Fig. 4 be fluorescence of the present invention power supply circuit three;
Fig. 5 be fluorescence of the present invention power supply circuit four;
Fig. 6 be fluorescence of the present invention power supply circuit five;
Fig. 7 be fluorescence of the present invention power supply circuit six;
Fig. 8 be fluorescence of the present invention power supply circuit seven.
Among the figure: 1, exchange the high-frequency electronic transformer; 2, high-frequency inverter; 3, fluorescent lamp; 4, pin; R
1, R
2, resistor; L
1, inductor; D
1～D
5, diode; C
1, electrochemical capacitor.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention further describes.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Shown in accompanying drawing 2 to 8, the technical scheme of practical implementation of the present invention is:
A kind of power supply circuits of fluorescent lamp; This fluorescent lamp can be by AC inductance transformer or DC power supply; Can also power supply be provided by exchanging high-frequency electronic transformer 1; The output of wherein said interchange high-frequency electronic transformer 1 is connected with the input of current rectifying and wave filtering circuit, and the output of said current rectifying and wave filtering circuit is connected with the input of high-frequency inverter 2, and the output of said high-frequency inverter 2 is connected with said fluorescent lamp 3; Characteristics of the present invention are, between the input of the output of said interchange high-frequency electronic transformer 1 and current rectifying and wave filtering circuit, insert to comprise resistor R
1, R
2And/or inductor L
1The impedance matching device that constitutes, or access comprises inductor L between the input of the output of said current rectifying and wave filtering circuit and high-frequency inverter 2
1, diode D
5, or inductor L
1, diode D
5, resistor R
1The impedance matching device that constitutes.Through the access of above-mentioned impedance matching device, the capacity load in original circuit is converted to for resistive load.Circuit after the improvement can be applicable to the power supply of AC low-tension (12V) energy-saving fluorescent lamp fully.
As shown in Figure 1, on the basis of embodiment 1, preferred implementation of the present invention comprises that said current rectifying and wave filtering circuit has adopted by first to fourth diode D
1～D
4The bridge rectifier that is formed by connecting is parallel with the electrolytic capacitor C that is used for filtering at the output of said bridge rectifier
4, first to fourth diode D in the said bridge rectifier
1～D
4Can select fast recovery diode for use.
As shown in Figure 2, on the basis of embodiment 2, preferred implementation of the present invention also has, and said impedance matching device comprises, at the positive pole and the said electrolytic capacitor C of said rectification circuit output end
4Positive pole between be parallel with said inductor L
1With the 5th diode D
5
As shown in Figure 3, on the basis of embodiment 2, preferred implementation of the present invention also has, and said impedance matching device comprises, at the positive pole and the said electrolytic capacitor C of said rectification circuit output end
4Positive pole between be parallel with said inductor L
1, the 5th diode D
5With first resistor R
1
Embodiment 5
As shown in Figure 4, on the basis of embodiment 2, preferred implementation of the present invention also has, and said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer 1 and said rectification circuit input end, is in series with first resistor R
1
Embodiment 6
As shown in Figure 5, on the basis of embodiment 2, preferred implementation of the present invention also comprises, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer 1 and said rectification circuit input end, is in series with inductor L
1
Embodiment 7
As shown in Figure 6, on the basis of embodiment 2, preferred implementation of the present invention also comprises, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer 1 and said rectification circuit input end, is in series with inductor L
1With first resistor R
1
Embodiment 8
As shown in Figure 7, on the basis of embodiment 2, preferred implementation of the present invention also comprises, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer 1 and said rectification circuit input end, is parallel with inductor L
1With first resistor R
1
Embodiment 9
As shown in Figure 8, on the basis of embodiment 2, preferred implementation of the present invention comprises that also said impedance matching device comprises, in the output and the institute of said interchange high-frequency electronic transformer 1
Be parallel with inductor L between the circuit input end
1With first resistor R
1, be in series with second resistor R again
2
Embodiment 10
In embodiment 1 to 9 on any one basis; Preferred implementation of the present invention also comprises; Said current rectifying and wave filtering circuit, impedance matching device and said high-frequency inverter 2 are installed in the housing of said fluorescent lamp lower end, and the pin 4 that said housing lower end is connected with said high-frequency inverter is 5.3 pins.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. the power supply circuits of a fluorescent lamp; This fluorescent lamp is by AC inductance transformer or DC power supply or exchange the high-frequency electronic transformer power supply is provided; The output of wherein said interchange high-frequency electronic transformer is connected with the input of current rectifying and wave filtering circuit; The output of said current rectifying and wave filtering circuit is connected with the input of high-frequency inverter, and the output of said high-frequency inverter is connected with said fluorescent lamp; Said current rectifying and wave filtering circuit comprises the bridge rectifier that is formed by connecting first to fourth diode, is parallel with electrolytic capacitor at the output of said bridge rectifier, and first to fourth diode in the said bridge rectifier is selected fast recovery diode for use; It is characterized in that; Between the input of the output of said interchange high-frequency electronic transformer and current rectifying and wave filtering circuit, insert the impedance matching device that comprises that resistor and/or inductor constitute; Or between the input of the output of said current rectifying and wave filtering circuit and high-frequency inverter, insert and comprise inductor, diode, or the impedance matching device that constitutes of inductor, diode, resistor; Said current rectifying and wave filtering circuit, impedance matching device and said high-frequency inverter are installed in the housing of said fluorescent lamp lower end, and said housing lower end is the G5.3 pin with the pin that said interchange high-frequency electronic transformer is connected.
2. the power supply circuits of fluorescent lamp according to claim 1 is characterized in that, said impedance matching device comprises, between the positive pole of the positive pole of said rectification circuit output end and said electrolytic capacitor, are parallel with said inductor and the 5th diode.
3. like the power supply circuits of the said fluorescent lamp of claim 2; It is characterized in that; Said impedance matching device comprises, between the positive pole of the positive pole of said rectification circuit output end and said electrolytic capacitor, is parallel with said inductor, the 5th diode and first resistor.
4. the power supply circuits of fluorescent lamp according to claim 1 is characterized in that, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said current rectifying and wave filtering circuit input, are in series with first resistor.
5. the power supply circuits of fluorescent lamp according to claim 1 is characterized in that, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said current rectifying and wave filtering circuit input, are in series with inductor.
6. the power supply circuits of fluorescent lamp according to claim 1 is characterized in that, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said current rectifying and wave filtering circuit input, are in series with the inductor and first resistor.
7. the power supply circuits of fluorescent lamp according to claim 1 is characterized in that, said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said current rectifying and wave filtering circuit input, are parallel with the inductor and first resistor.
8. the power supply circuits of fluorescent lamp according to claim 1; It is characterized in that; Said impedance matching device comprises, between the output of said interchange high-frequency electronic transformer and said current rectifying and wave filtering circuit input, is parallel with the inductor and first resistor, is in series with second resistor again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101718475A CN101640966B (en) | 2009-09-07 | 2009-09-07 | Power supply circuit of fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101718475A CN101640966B (en) | 2009-09-07 | 2009-09-07 | Power supply circuit of fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101640966A CN101640966A (en) | 2010-02-03 |
| CN101640966B true CN101640966B (en) | 2012-11-21 |
Family
ID=41615669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101718475A Expired - Fee Related CN101640966B (en) | 2009-09-07 | 2009-09-07 | Power supply circuit of fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101640966B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2634823B1 (en) * | 2010-10-28 | 2019-05-08 | Citizen Watch Co., Ltd. | Led lighting circuit, led illuminating device, and socket for led illuminating unit |
| CN102291882A (en) * | 2011-06-04 | 2011-12-21 | 魏其萃 | LED (Light Emitting Diode) drive circuit for replacing low-voltage AC (Alternating Current) incandescent lamp |
| CN102769982A (en) * | 2012-07-18 | 2012-11-07 | 东莞市领冠半导体照明有限公司 | MR16 power supply adapted to all halogen lamp transformers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763904A (en) * | 2004-10-22 | 2006-04-26 | 黄甜仔 | Funnel-type spiral fluorescent lamp tube |
| CN101193482A (en) * | 2006-11-28 | 2008-06-04 | 戴培钧 | Electronic energy-saving lamp based on halogen bulb compensation |
-
2009
- 2009-09-07 CN CN2009101718475A patent/CN101640966B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763904A (en) * | 2004-10-22 | 2006-04-26 | 黄甜仔 | Funnel-type spiral fluorescent lamp tube |
| CN101193482A (en) * | 2006-11-28 | 2008-06-04 | 戴培钧 | Electronic energy-saving lamp based on halogen bulb compensation |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-63941A 2005.03.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101640966A (en) | 2010-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017124742A1 (en) | Indication circuit for switch power supply and using method therefor | |
| CN101640966B (en) | Power supply circuit of fluorescent lamp | |
| CN204578876U (en) | A kind of power driving circuit of AC/DC | |
| CN103517495A (en) | High-power LED street lamp driving power supply | |
| CN201382384Y (en) | LED lamp | |
| CN201479441U (en) | Power supply circuit for fluorescent lamp | |
| CN101754551B (en) | Fluorescent lamp abnormal condition protection and sampling circuit | |
| CN201409247Y (en) | Driving circuit of LED (Light-Emitting Diode) lamp | |
| CN101541134A (en) | Drive circuit of low-voltage alternating-current fluorescent lamp | |
| CN201398262Y (en) | Drive circuit of low-voltage alternating current fluorescent lamp | |
| CN202135357U (en) | LED street lamp driving power supply | |
| CN1674757B (en) | Electromagnetic inductive lamp circuit | |
| CN202773160U (en) | Electronic ballast | |
| CN201651941U (en) | Light-emitting diode (LED) energy-saving lamp | |
| CN204634142U (en) | Fluorescent lamp low-light illumination auxiliary device | |
| CN203596952U (en) | Mixed constant current LED lamp | |
| CN201256477Y (en) | DC electricity supply energy saving lamp | |
| CN201383888Y (en) | Ballast adapter | |
| CN202121813U (en) | LED tube driving power supply | |
| CN201601884U (en) | Novel protection sample circuit for fluorescent lamp abnormal condition | |
| CN207927001U (en) | A kind of CFL driving circuit of energy-saving lamp | |
| CN201491331U (en) | LED lamp control circuit and refrigerator provided with the control circuit | |
| CN105228292A (en) | A kind of LED constant current driving power | |
| CN201401757Y (en) | Lamp tube converter | |
| CN206077783U (en) | A kind of constant-current LED driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20121121 Termination date: 20130907 |