CN101494942B - Piezo-oscillator for high voltage lighting - Google Patents
Piezo-oscillator for high voltage lighting Download PDFInfo
- Publication number
- CN101494942B CN101494942B CN 200810004732 CN200810004732A CN101494942B CN 101494942 B CN101494942 B CN 101494942B CN 200810004732 CN200810004732 CN 200810004732 CN 200810004732 A CN200810004732 A CN 200810004732A CN 101494942 B CN101494942 B CN 101494942B
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- lamp
- high pressure
- resonant circuit
- lighting
- 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.)
- Active
Links
Images
Landscapes
- Dc-Dc Converters (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The invention relates to a piezoelectric oscillator used for high-voltage lighting-up. A piezoelectric capacitor is connected with LC resonance circuit in parallel for power outputting; the LC resonance circuit is used for generating resonance; and achieves voltage amplifying effect by the inverse-piezoelectric effect generated in piezoelectric capacitor electrifying deformation and positive charge generated in the direct piezoelectric effect of the deformation. Therefore, the invention can save electricity consumption and reduce production cost.
Description
Technical field
What the present invention relates to is that a kind of high pressure is lit a lamp, particularly be a kind of piezoelectric oscillator of lighting a lamp for high pressure.
Background technology
Cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp; CCFL) principle of luminosity is similar to general fluorescent lamp, its principle of luminosity is, after high-tension electricity is by the electrode tip input, minority electrons molecule high-speed impact electrode in pipe, produce secondary this moment, and when beginning to discharge, electronics and mercury atom bump, mercury atom is stimulated and gives off the ultraviolet light of 253.7nm, and ultraviolet excitation is coated on the fluorescent material on tube wall and produces the visible light of relative colour temperature.One of general except can be applicable to display, personal digital assistant, digital camera and mobile phone etc., or the indispensable material backlight of liquid crystal display.Because cold-cathode fluorescence lamp does not adopt filament, therefore without the problem of filament blow, therefore there is useful life very reliably, use this kind fluorescent tube as lighting source, the advantage such as have high-luminous-efficiency, little, the high briliancy of caliber, heat is few, the life-span is long.
For reaching the little requirement with good electrical usefulness of volume, the lamp circuit of cold cathode fluorescent lamp adopts piezoelectric transformer (piezoelectric transformer) to replace the coil form step-up transformer.Due to piezoelectric transformer has that volume is little, high voltage gain, high efficiency, insulation is good with without superior electrical characteristics such as electromagnetic interference.Therefore, the general common lamp circuit that piezoelectric transformer is applied in the high-luminous-efficiency illuminator can reach short and small frivolous and superior electric usefulness.
Yet, provide also large power output in order to make piezoelectric transformer, except amplifying, the simplest mode is the area increase with its silver electrode face, it is large that yet silver electrode face area becomes, and has the effect that reduces step-up ratio, and the effect that makes original expection improve power output is not cited.Amplify except increasing cost, also disagree with the compact requirement of hope.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of piezoelectric oscillator of lighting a lamp for high pressure, utilizes piezoelectric simple in structure to coordinate the LC resonant circuit, reaches high-power output, thereby can alleviate power consumption and production cost, have market competition advantage.
Another object of the present invention is to provide a kind of piezoelectric oscillator of lighting a lamp for high pressure, is by the piezoelectric effect of piezoelectric under the LC resonant circuit, can bring into play automatic protection mechanism when load is transshipped, and avoids causing fault and overheated danger.
Therefore, for reaching above-mentioned purpose, piezoelectric oscillator of lighting a lamp for high pressure disclosed in this invention, be with former be applied in the high-power piezoelectricity concussion sheet of ultrasonic vibrating device then be applied in stabilizer that high pressure lights a lamp and converter in as piezoelectric, this piezoelectric can produce inverse piezoelectric effect when the energising distortion, produce direct piezoelectric effect after distortion, so having positive charge produces, has the effect of amplifying voltage, and reach high-power output, having changed the conventional piezoelectric transformer only provides high voltage, little electric current and power stage limited shortcoming.
And the present invention is with piezoelectric and the collocation of LC resonant circuit; when the LC resonance; can performance the best export usefulness; and when load is transshipped; the temperature of piezoelectric can rise, capacitance becomes large; make the LC resonant circuit can't produce resonance, output usefulness diminishes, and has automatic protection functions.
In addition, the present invention with piezoelectric can with LC resonant circuit collocation outside, also can match a capacitance auxiliary capacitor suitable with piezoelectric and mate, during at resonance, make the piezoelectric effect lifting at the LC resonant circuit, reach the power output optimization.
Description of drawings
Fig. 1 is the schematic diagram that is used for the piezoelectric oscillator that high pressure lights a lamp that the embodiment of the present invention provides;
Fig. 2 is the schematic diagram of the piezoelectric that provides of the embodiment of the present invention; With
Fig. 3 is the schematic diagram of the piezoelectric that provides of another embodiment of the present invention.
Description of reference numerals: 10-piezoelectric; 11-plectane base material; The 12-conductive layer; 121-electrode pin; The 13-conductive layer; 131-electrode pin; The 20-LC resonant circuit; 30 auxiliary capacitors; The 40-piezoelectric; The 50-lead-in wire.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Please refer to Fig. 1, it is the schematic diagram that is used for the piezoelectric oscillator that high pressure lights a lamp that embodiments of the invention provide, and mainly comprises capacitor 10, LC resonant circuit 20 and the auxiliary capacitor 30 of mutual parallel connection.The capacitor 10 that piezoelectric oscillator uses is a piezoelectric, in order to store electrical energy and have piezoelectric property, can the Modulating Power factor again with power stage, can produce inverse piezoelectric effect during the energising distortion, can produce direct piezoelectric effect after distortion, and its just, the conversion of inverse piezoelectric effect will generate positive charge, make voltage amplification, and have an effect of amplifying voltage, to reach high-power output, and the present embodiment in order to produce the LC resonant circuit 20 of resonance, when LC resonant circuit 20 resonance, can produce best output usefulness with piezoelectric 10 collocation.
Because the capacitance of piezoelectric 10 is affected by temperature mainly can, therefore, in the situation that decide electric current, its output voltage can change, the present embodiment is that apolegamy auxiliary capacitor 30 mates with transformation capacitor 10, the capacitance of the capacitance of auxiliary capacitor 30 and transformation capacitor 10 is suitable, in order to auxiliary charging, makes piezoelectric effect reach the power output optimization.Voltage can raise moment when lighting a lamp, and the capacitance of having lit a lamp can be made suitable coupling, so output can be followed piezoelectric effect adjustment, can reduce extra power consumption.
As shown in Figure 2, the piezoelectric 10 of the present embodiment is to make a plectane base material 11 with the piezoelectricity material, make with elargol, copper cream or nickel cream conductive layer 12,13 upper surface all or in part and the lower surfaces at plectane base material 11 that are similarly circular again, to consist of the two poles of the earth of piezoelectric 10, and weld respectively in conductive layer 12,13 outsides and be provided with electrode pin 121,131, to connect LC resonant circuit 20.Be to use a piezoelectric 10 in the present embodiment, can export the power up to 70 watts, only need collocation half-bridge resonance circuit, but Decrease production cost, the advantage that has price competition, certainly, if collocation full-bridge resonant circuit namely can promote also high-power output.Moreover, if the LC resonant circuit of these piezoelectric 10 collocation L impedance types has automatic protection functions, can when transshipping, load change greatly resonance output because capacitance becomes, power output reduces, and temperature is descended; Because piezoelectric 10 has piezoelectric property, in case when load was transshipped, its temperature rose, capacitance becomes large, make the capacitance change of LC resonant circuit inside, and can't produce resonance, output usefulness diminishes, lamp also with dark get off, so can avoid causing fault and overheated danger.
In addition, as shown in Figure 3, another embodiment of the present invention is to use by a lead-in wire 50 to make two piezoelectric 10,40 of connection up and down, on practice, piezoelectric can be serial or parallel connection, it has respectively one group of plectane base material 11 and corresponding two conductive layers 12,13 (piezoelectric 10,40 structures are identical, therefore only take piezoelectric 10 as representative).Because capacitance improves, inductance value increases, and the power that produces after resonance also can and then become greatly, can export the power up to 100 watts, and temperature can maintain 30 ℃ of left and right.This represents that also the piezoelectric conventional piezoelectric transformer of the present embodiment is the power output that can provide multiple to increase, and there is no overheated problem.
The above is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limits, revise, and even equivalence, but all will fall within the scope of protection of the present invention.
Claims (7)
1. one kind is used for the piezoelectric oscillator that high pressure is lit a lamp, and it comprises a capacitor and a LC resonant circuit, it is characterized in that:
Described capacitor is a piezoelectric, and in parallel with described LC resonant circuit, and described piezoelectric produces inverse piezoelectric effect when the energising distortion, produce direct piezoelectric effect after the energising distortion, and described piezoelectric includes:
One plectane base material, it has upper surface and lower surface, is the piezoelectricity material; With
Two conductive layers, it is respectively formed at upper surface and the lower surface of described plectane base material, and consists of the two poles of the earth of described piezoelectric, also welds respectively outside described two conductive layers and is provided with an electrode pin, to connect described LC resonant circuit.
2. piezoelectric oscillator of lighting a lamp for high pressure according to claim 1, is characterized in that: also comprise an auxiliary capacitor, be connected in parallel between described piezoelectric and described LC resonant circuit.
3. piezoelectric oscillator of lighting a lamp for high pressure according to claim 2, it is characterized in that: the capacitance of described auxiliary capacitor is suitable with the capacitance of described piezoelectric.
4. piezoelectric oscillator of lighting a lamp for high pressure according to claim 1, it is characterized in that: described LC resonant circuit is made of half-bridge resonance circuit or full-bridge resonant circuit.
5. piezoelectric oscillator of lighting a lamp for high pressure according to claim 1, it is characterized in that: described plectane base material and described two conductive layers are two groups, and by the serial or parallel connection in addition that goes between.
6. piezoelectric oscillator of lighting a lamp for high pressure according to claim 1 is characterized in that: described two conductive layers are for circular, and are respectively formed at upper surface all or in part and the lower surface of described plectane base material.
7. piezoelectric oscillator of lighting a lamp for high pressure according to claim 1, it is characterized in that: described two conductive layers are formed by elargol, copper cream or nickel cream.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810004732 CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
| RU2009100986/07A RU2446641C2 (en) | 2008-01-23 | 2009-01-15 | Piezoelectric resonant circuit of lamp lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810004732 CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101494942A CN101494942A (en) | 2009-07-29 |
| CN101494942B true CN101494942B (en) | 2013-06-26 |
Family
ID=40925276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810004732 Active CN101494942B (en) | 2008-01-23 | 2008-01-23 | Piezo-oscillator for high voltage lighting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101494942B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915895B (en) * | 2021-01-27 | 2023-03-17 | 山东蓝天新材料科技有限公司 | But coating manufacturing of automatic adjustment rotational speed is with raw materials mixing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2113459A (en) * | 1982-01-14 | 1983-08-03 | Standard Telephones Cables Ltd | Piezo-electric ceramic couplers |
| US6342753B1 (en) * | 2000-09-25 | 2002-01-29 | Rockwell Technologies, Llc | Piezoelectric transformer and operating method |
| US6443547B1 (en) * | 2000-05-08 | 2002-09-03 | Fuji Xerox Co., Ltd. | Driving device for inkjet recording apparatus and inkjet recording apparatus using the same |
-
2008
- 2008-01-23 CN CN 200810004732 patent/CN101494942B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2113459A (en) * | 1982-01-14 | 1983-08-03 | Standard Telephones Cables Ltd | Piezo-electric ceramic couplers |
| US6443547B1 (en) * | 2000-05-08 | 2002-09-03 | Fuji Xerox Co., Ltd. | Driving device for inkjet recording apparatus and inkjet recording apparatus using the same |
| US6342753B1 (en) * | 2000-09-25 | 2002-01-29 | Rockwell Technologies, Llc | Piezoelectric transformer and operating method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-51681A 1997.02.18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101494942A (en) | 2009-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030015943A1 (en) | Rosen type piezoelectric transformer with multiple output electrodes, and stabilizer for multiple light source using that | |
| JP3292788B2 (en) | Inverter circuit for discharge tube | |
| JP5187962B2 (en) | Piezoelectric series resonant lighting circuit | |
| KR200470950Y1 (en) | A piezoelectric type resonance high-voltage light-starting circuit | |
| CN101494942B (en) | Piezo-oscillator for high voltage lighting | |
| TWI282111B (en) | Circuit arrangement for igniting high pressure discharge lamps | |
| CN201167428Y (en) | Piezo-oscillator with high power output | |
| JP5096957B2 (en) | High voltage lighting piezoelectric oscillator | |
| CN101321422A (en) | Cold cathode fluorescent lighting discharge tube device | |
| TWM350943U (en) | Piezoelectric series resonance lighting circuit | |
| CN201438775U (en) | Piezoelectric type resonance high-voltage lighting circuit | |
| CN202145377U (en) | Piezoelectric transformer drive circuit | |
| CN101677484B (en) | Piezoelectric type series resonance lighting circuit | |
| CN2343676Y (en) | Piezoelectric ceramic booster discharge tube | |
| TW201012297A (en) | Piezoelectric series resonant lamp-ignition circuit | |
| CN102378458A (en) | High-power fluorescent lamp ballast | |
| KR100402432B1 (en) | Inverter circuit for discharging tube | |
| CN202385370U (en) | T5-to-T8 fluorescent lamp tube-in-tube electronic ballast | |
| CN202042161U (en) | Piezoelectric transformer driving circuit | |
| CN201204733Y (en) | Parallel connection addition igniting circuit for high-pressure discharge lamp electronic ballast | |
| TWM334445U (en) | Piezoelectric oscillator of high power output | |
| CN102760411A (en) | Piezoelectric transformer drive circuit | |
| KR20060119446A (en) | Circuit for operating multi eefl using piezo transformer | |
| CN102760412A (en) | Piezoelectric transformer drive circuit | |
| CN102760413A (en) | Piezoelectric transformer drive circuit |
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 |