CN201479441U - Power supply circuit for fluorescent lamp - Google Patents

Power supply circuit for fluorescent lamp Download PDF

Info

Publication number
CN201479441U
CN201479441U CN2009201778560U CN200920177856U CN201479441U CN 201479441 U CN201479441 U CN 201479441U CN 2009201778560 U CN2009201778560 U CN 2009201778560U CN 200920177856 U CN200920177856 U CN 200920177856U CN 201479441 U CN201479441 U CN 201479441U
Authority
CN
China
Prior art keywords
power supply
fluorescent lamp
output
impedance matching
matching device
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
Application number
CN2009201778560U
Other languages
Chinese (zh)
Inventor
王万里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGYIN REPUTE ELECTRIC APPLIANCE CO Ltd
Original Assignee
JIANGYIN REPUTE ELECTRIC APPLIANCE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGYIN REPUTE ELECTRIC APPLIANCE CO Ltd filed Critical JIANGYIN REPUTE ELECTRIC APPLIANCE CO Ltd
Priority to CN2009201778560U priority Critical patent/CN201479441U/en
Application granted granted Critical
Publication of CN201479441U publication Critical patent/CN201479441U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The utility model relates to a power supply circuit for a fluorescent lamp. The fluorescent lamp can use an alternating current inductance transformer or a direct current power supply for supplying electricity and use an alternating current high-frequency electronic transformer for providing the power supply, wherein the output end of the alternating current high-frequency electronic transformer is connected with the input end of a rectifying and wave-filtering circuit, the output end of the rectifying and wave-filtering circuit is connected with the input end of a high-frequency inverter, the output end of a high-frequency inverter is connected with the fluorescent lamp, an impedance matching device consisting of 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 rectifying and wave-filtering circuit, or an impedance matching device consisting of an inductor and a diode or an inductor, a diode and a resistor is connected between the output end of the rectifying and wave-filtering circuit and the input end of the high-frequency inverter. Through the connection of the impedance matching device, the capacitive load in the original circuit is converted into the resistance load, and the improved circuit can be completely suitable for being used as the power supply for supplying the electricity to alternating current low-voltage energy-saving type fluorescent lamps.

Description

A kind of power supply circuits of fluorescent lamp
Technical field
The utility model relates to light fixture, is 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 of powering into Halogen lamp LED.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 class of current rectifying and wave filtering circuit.And the required power supply of low-pressure energy-saving type lamp fluorescent lamp, must earlier the high-frequency ac power rectifying and wave-filtering be become behind the direct current just the fluorescent lamp can operate as normal, 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.
The utility model content
The purpose of this utility model 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, also can be the energy-saving fluorescent lamp normal power supply by the impedance matching device access, 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 achieving the above object, the technical solution of the utility model is the power supply circuits of a kind of fluorescent lamp of design, this fluorescent lamp is by the AC inductance transformer, or DC power supply, or interchange high-frequency electronic transformer provides power supply, 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 described current rectifying and wave filtering circuit is connected with the input of high-frequency inverter, the output of described high-frequency inverter is connected with described fluorescent lamp, it is characterized in that, between the input of the output of described 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 described current rectifying and wave filtering circuit and high-frequency inverter, insert and comprise inductor, diode, or inductor, diode, the impedance matching device that resistor constitutes.
Wherein, described current rectifying and wave filtering circuit comprises the bridge rectifier that is formed by connecting by first to fourth diode, output at described bridge rectifier is parallel with electrolytic capacitor, and first to fourth diode in the described bridge rectifier is selected fast recovery diode for use.
Wherein, described impedance matching device comprises, is parallel with described inductor and the 5th diode between the positive pole of the positive pole of described rectification circuit output end and described electrolytic capacitor.
Wherein, described impedance matching device comprises, is parallel with described inductor, the 5th diode and first resistor between the positive pole of the positive pole of described rectification circuit output end and described electrolytic capacitor.
Wherein, described impedance matching device comprises, is in series with first resistor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end.
Wherein, described impedance matching device comprises, is in series with inductor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end.
Wherein, described impedance matching device comprises, is in series with the inductor and first resistor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end.
Wherein, described impedance matching device comprises, is parallel with the inductor and first resistor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end.
Wherein, described impedance matching device comprises, is parallel with the inductor and first resistor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, is in series with second resistor again.
Wherein, described current rectifying and wave filtering circuit, impedance matching device and described high-frequency inverter are installed in the housing of described fluorescent lamp lower end, and the pin that described housing lower end is connected with described interchange high-frequency electronic transformer is G4, G5.3, G6.35 or GU10 pin.
Advantage of the present utility model and beneficial effect are: owing to inserted impedance matching device in the power supply circuits of original Halogen lamp LED after, 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 G5.3G4, 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 the utility model fluorescence;
Fig. 3 be the utility model fluorescence power supply circuit two;
Fig. 4 be the utility model fluorescence power supply circuit three;
Fig. 5 be the utility model fluorescence power supply circuit four;
Fig. 6 be the utility model fluorescence power supply circuit five;
Fig. 7 be the utility model fluorescence power supply circuit six;
Fig. 8 be the utility model fluorescence 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 drawings and Examples, embodiment of the present utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection range of the present utility model with this.
Shown in accompanying drawing 2 to 8, the concrete technical scheme of implementing of the utility model is:
Embodiment 1
A kind of power supply circuits of fluorescent lamp, this fluorescent lamp can be by the AC inductance transformer, or DC power supply, can also provide power supply 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, the output of described current rectifying and wave filtering circuit is connected with the input of high-frequency inverter 2, the output of described high-frequency inverter 2 is connected with described fluorescent lamp 3, characteristics of the present utility model are, insert to comprise resistor R between the input of the output of described interchange high-frequency electronic transformer 1 and current rectifying and wave filtering circuit 1, R 2And/or inductor L 1The impedance matching device that constitutes, or access comprises inductor L between the input of the output of described 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.By 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.
Embodiment 2
As shown in Figure 1, on the basis of embodiment 1, the utility model preferred implementation comprises that described 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 described bridge rectifier 4, first to fourth diode D in the described bridge rectifier 1～D 4Can select fast recovery diode for use.
Embodiment 3
As shown in Figure 2, on the basis of embodiment 2, the utility model preferred implementation also has, and described impedance matching device comprises, at the positive pole and the described electrolytic capacitor C of described rectification circuit output end 4Positive pole between be parallel with described inductor L 1With the 5th diode D 5
Embodiment 4
As shown in Figure 3, on the basis of embodiment 2, the utility model preferred implementation also has, and described impedance matching device comprises, at the positive pole and the described electrolytic capacitor C of described rectification circuit output end 4Positive pole between be parallel with described 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, the utility model preferred implementation also has, and described impedance matching device comprises, is in series with first resistor R between the output of described interchange high-frequency electronic transformer 1 and described rectification circuit input end 1
Embodiment 6
As shown in Figure 5, on the basis of embodiment 2, the utility model preferred implementation also comprises, described impedance matching device comprises, is in series with inductor L between the output of described interchange high-frequency electronic transformer 1 and described rectification circuit input end 1
Embodiment 7
As shown in Figure 6, on the basis of embodiment 2, the utility model preferred implementation also comprises, described impedance matching device comprises, is in series with inductor L between the output of described interchange high-frequency electronic transformer 1 and described rectification circuit input end 1With first resistor R 1
Embodiment 8
As shown in Figure 7, on the basis of embodiment 2, the utility model preferred implementation also comprises, described impedance matching device comprises, is parallel with inductor L between the output of described interchange high-frequency electronic transformer 1 and described rectification circuit input end 1With first resistor R 1
Embodiment 9
As shown in Figure 8, on the basis of embodiment 2, the utility model preferred implementation also comprises, described impedance matching device comprises, is parallel with inductor L between the output of described interchange high-frequency electronic transformer 1 and described rectification 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, the utility model preferred implementation also comprises, described current rectifying and wave filtering circuit, impedance matching device and described high-frequency inverter 2 are installed in the housing of described fluorescent lamp lower end, and the pin 4 that described housing lower end is connected with described high-frequency inverter is the G5.3 pin.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (10)

1. the power supply circuits of a fluorescent lamp, this fluorescent lamp is by the AC inductance transformer, or DC power supply, or interchange high-frequency electronic transformer provides power supply, 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 described current rectifying and wave filtering circuit is connected with the input of high-frequency inverter, the output of described high-frequency inverter is connected with described fluorescent lamp, it is characterized in that, between the input of the output of described 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 described current rectifying and wave filtering circuit and high-frequency inverter, insert and comprise inductor, diode, or inductor, diode, the impedance matching device that resistor constitutes.
2. the power supply circuits of fluorescent lamp according to claim 1, it is characterized in that, described current rectifying and wave filtering circuit comprises the bridge rectifier that is formed by connecting by first to fourth diode, output at described bridge rectifier is parallel with electrolytic capacitor, and first to fourth diode in the described bridge rectifier is selected fast recovery diode for use.
3. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that described impedance matching device comprises, between the positive pole of the positive pole of described rectification circuit output end and described electrolytic capacitor, be parallel with described inductor and the 5th diode.
4. as the power supply circuits of fluorescent lamp as described in the claim 3, it is characterized in that, described impedance matching device comprises, is parallel with described inductor, the 5th diode and first resistor between the positive pole of the positive pole of described rectification circuit output end and described electrolytic capacitor.
5. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that described impedance matching device comprises, between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, be in series with first resistor.
6. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that described impedance matching device comprises, between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, be in series with inductor.
7. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that described impedance matching device comprises, between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, be in series with the inductor and first resistor.
8. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that described impedance matching device comprises, between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, be parallel with the inductor and first resistor.
9. as the power supply circuits of fluorescent lamp as described in the claim 2, it is characterized in that, described impedance matching device comprises, is parallel with the inductor and first resistor between the output of described interchange high-frequency electronic transformer and described rectification circuit input end, is in series with second resistor again.
10. as the power supply circuits of fluorescent lamp as described in each in the claim 1 to 9, it is characterized in that, described current rectifying and wave filtering circuit, impedance matching device and described high-frequency inverter are installed in the housing of described fluorescent lamp lower end, and described housing lower end is the G5.3 pin with the pin that described interchange high-frequency electronic transformer is connected.
CN2009201778560U 2009-09-07 2009-09-07 Power supply circuit for fluorescent lamp Expired - Fee Related CN201479441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201778560U CN201479441U (en) 2009-09-07 2009-09-07 Power supply circuit for fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201778560U CN201479441U (en) 2009-09-07 2009-09-07 Power supply circuit for fluorescent lamp

Publications (1)

Publication Number Publication Date
CN201479441U true CN201479441U (en) 2010-05-19

Family

ID=42415696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201778560U Expired - Fee Related CN201479441U (en) 2009-09-07 2009-09-07 Power supply circuit for fluorescent lamp

Country Status (1)

Country Link
CN (1) CN201479441U (en)

Similar Documents

Publication Publication Date Title
CN204578876U (en) A kind of power driving circuit of AC/DC
CN101640966B (en) Power supply circuit of fluorescent lamp
CN103237395B (en) High-frequency electronic direct-current ballast circuit and fluorescent lamp
CN103517495A (en) High-power LED street lamp driving power supply
CN201479441U (en) Power supply circuit for fluorescent lamp
CN201409247Y (en) Driving circuit of LED (Light-Emitting Diode) lamp
CN201382384Y (en) LED lamp
CN202773160U (en) Electronic ballast
CN202135357U (en) LED street lamp driving power supply
CN203537623U (en) LED driving power supply
CN201398262Y (en) Drive circuit of low-voltage alternating current fluorescent lamp
CN201651941U (en) Light-emitting diode (LED) energy-saving lamp
CN201830512U (en) Control device of solar street lamp
CN201100913Y (en) An efficient energy-saving long life fluorescent lamp
CN101541134A (en) Drive circuit of low-voltage alternating-current fluorescent lamp
CN201074788Y (en) LED energy-saving lamp
CN204616144U (en) A kind of control circuit of LED energy conserving lamp
CN201256477Y (en) DC electricity supply energy saving lamp
CN204634142U (en) Fluorescent lamp low-light illumination auxiliary device
CN201718105U (en) Electronic ballast circuit for low-voltage fluorescent lamp
CN204733409U (en) A kind of high power LED constant
CN203596952U (en) Mixed constant current LED lamp
CN202121813U (en) LED tube driving power supply
CN107613611A (en) Alternating current and direct current automatic switchover LED
CN201491331U (en) LED lamp control circuit and refrigerator provided with the control circuit

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: 20100519

Termination date: 20120907