CN102307408A - Driving power supply for enamel electroluminescent panel - Google Patents
Driving power supply for enamel electroluminescent panel Download PDFInfo
- Publication number
- CN102307408A CN102307408A CN201110123579A CN201110123579A CN102307408A CN 102307408 A CN102307408 A CN 102307408A CN 201110123579 A CN201110123579 A CN 201110123579A CN 201110123579 A CN201110123579 A CN 201110123579A CN 102307408 A CN102307408 A CN 102307408A
- Authority
- CN
- China
- Prior art keywords
- driving power
- circuit
- pwm
- ferrite transformer
- power supply
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses a small high-frequency electric energy transducer used as a driving power supply for an enamel electroluminescent element and other electroluminescent elements. The invention has the main technical characteristic that an electric energy high-frequency conversion driving power supply is formed by combining a ferrite transformer and a pulse width modulation (PWM) circuit, wherein a PWM waveform generation circuit is connected with a power driver element, the ferrite transformer and the enamel electroluminescent element in series; one end of a parasitic oscillation cancellation circuit is connected with the power driver element; and the other end of the parasitic oscillation cancellation circuit is connected with the ferrite transformer to form the PWM circuit; and the modulation frequency of the PWM circuit is between 20 KHz and 2 MHz.
Description
Technical field
The present invention relates to a kind of driving power, more particularly, the present invention is the driving power that is used for electroluminescent panel.
Background technology
At present, the driving power of domestic and international known AC electroluminescence (also claiming inverter), general scheme is to be become by oscillator, power switch component and silicon steel chip transformer group.Its driving force of the driving power of this structure is generally fixed; The frequency that drives electroluminescent panel generally at the hundreds of hertz to several KHz, as a kind of product can't particularly different enamel electroluminescent plates be complementary with characteristic with the luminous plaque of different structure, different area; And the silicon steel chip volume of transformer of this driving power is big, weight is also bigger, generates heat easily, is not easy to long-term use, its energy conversion efficiency is relatively low.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency, the driving power that is used for the AC electroluminescence element a kind of minute shape, that can carry out high frequency conversion is provided.And being specially adapted to the enamel electroluminescent plate, its inverting element volume dwindles greatly, is made into slim product.
The present invention realizes through following technical proposals: adopt ferrite transformer and pulse-width modulation circuit (PWM) to constitute a kind of driving power of high frequency conversion.Wherein PWM produces circuit, joins with power drive element, ferrite transformer, AC electroluminescence element connected in series, and parasitic oscillation is eliminated circuit one end and is connected with the analog line driver element, and the other end and ferrite transformer connect and compose.
PWM produces circuit, and its modulating frequency is between 20KHz to 2MHz.
The power drive element is the electric energy switch element that directly drives ferrite transformer, MOSFET just, and perhaps power transistor, it plays on-off action in essence, produces circuit by PWM and controls.
Ferrite transformer is generally to be MnZn or nickel Zinc material by Ferrite Material, is processed into difform magnetic core through the powder metallurgy mode.
The enamel electroluminescent plate is to be the basis with the enamelled pressed steel, on its enamelled pressed steel, fires sandwich construction respectively, with the electroluminescent material sintering therein.
It is to adopt the R-C filter circuit that circuit is eliminated in parasitic oscillation.
Than conventional AC electroluminescence driver, the used steel of making by technical scheme of the present invention of equal power driving power supply reduce in a large number, have also reduced energy consumption; Small product size and weight are dwindled significantly, cooperate the vitrified enamel optical element, being integrally formed structure; Driving power noise of the present invention significantly reduces, and does not disturb using environment, and meets the development need of world today's low-carbon (LC), environmental protection and energy-saving and emission-reduction.
Description of drawings
Accompanying drawing is a driving power theory diagram of the present invention.
Embodiment
Adopt ferrite transformer and pulse-width modulation circuit (PWM) to constitute a kind of driving power of high frequency conversion.Wherein PWM produces circuit, is connected in series with power drive element, ferrite transformer, AC electroluminescence plate, and parasitic oscillation is eliminated circuit one end and is connected with the analog line driver element, and the other end and ferrite transformer connect and compose.
It can be that MCU, CPLD and FPGA constitute that PWM produces circuit; Also can be the IC of customization; With primary signal input power driving element; The power drive element generally is made up of MOSFET power tube or power transistor; The power drive element is with its modulated power signal input ferrite transformer; Frequency is between 20KHz to 2MHz, and ferrite transformer step-up excitation electroluminescent cell is luminous thus.
It is to adopt the R-C filter circuit that circuit is eliminated in parasitic oscillation, is connected the input and the output of ferrite transformer, eliminates parasitic oscillation.
The basic parameter of driving power is:
Input voltage: DC12V;
Output voltage: AC175V～250V, 50～5000Hz (filtering high frequency);
Volume: 15 * 35 * 12mm;
Weight: about 15～22 grams;
Efficient: 60%～80%.
Claims (5)
1. the driving power of an electroluminescent cell is characterized in that described driving power eliminates circuit by ferrite transformer and pulse-width modulation circuit, power drive element, parasitic oscillation and form, as shown in the figure.
2. driving power according to claim 1 is characterized in that described ferrite transformer is by MnZn or nickel Zinc material, processes through the powder metallurgy mode.
3. driving power according to claim 1 is characterized in that described pulse-width modulation circuit, and its modulating frequency is between 20KHz to 2MHz.
4. driving power according to claim 1 is characterized in that described power drive element is MOSFET, perhaps power transistor.
5. driving power as claimed in claim 1 is characterized in that it is the R-C filter circuit that adopts that circuit is eliminated in described parasitic oscillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110123579A CN102307408A (en) | 2011-05-13 | 2011-05-13 | Driving power supply for enamel electroluminescent panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110123579A CN102307408A (en) | 2011-05-13 | 2011-05-13 | Driving power supply for enamel electroluminescent panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102307408A true CN102307408A (en) | 2012-01-04 |
Family
ID=45381192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110123579A Pending CN102307408A (en) | 2011-05-13 | 2011-05-13 | Driving power supply for enamel electroluminescent panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102307408A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566064A (en) * | 1995-05-26 | 1996-10-15 | Apple Computer, Inc. | High efficiency supply for electroluminescent panels |
| JP2005149744A (en) * | 2003-11-11 | 2005-06-09 | Konica Minolta Holdings Inc | Lighting system |
| JP2007095560A (en) * | 2005-09-29 | 2007-04-12 | Fujifilm Corp | Large capacitative el panel driving circuit |
| CN101345015A (en) * | 2007-07-10 | 2009-01-14 | 索尼株式会社 | Driving method of flat panel display apparatus |
-
2011
- 2011-05-13 CN CN201110123579A patent/CN102307408A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566064A (en) * | 1995-05-26 | 1996-10-15 | Apple Computer, Inc. | High efficiency supply for electroluminescent panels |
| JP2005149744A (en) * | 2003-11-11 | 2005-06-09 | Konica Minolta Holdings Inc | Lighting system |
| JP2007095560A (en) * | 2005-09-29 | 2007-04-12 | Fujifilm Corp | Large capacitative el panel driving circuit |
| CN101345015A (en) * | 2007-07-10 | 2009-01-14 | 索尼株式会社 | Driving method of flat panel display apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202068653U (en) | Double push-pull oscillation power synthesis electroless lamp utilizing direct-current low-voltage power supply | |
| CN202621424U (en) | Portable high-voltage multiple-pulse ultrasonic transmitting device | |
| TWI455470B (en) | Two - stage isolated DC / AC conversion circuit architecture | |
| CN106899060A (en) | Portable rechargeable-type microsecond pulse power supply | |
| CN204145330U (en) | A kind of high-pressure electrostatic pulse power | |
| CN104113143A (en) | Wireless electric energy transmission system and control method thereof | |
| CN201690360U (en) | Shunting type active power factor correcting circuit | |
| CN110086354A (en) | Single-phase double push-pull booster circuit and step-up method based on silicon carbide MOSFET | |
| CN101398548B (en) | Electric power circuit and LCD | |
| CN102355132B (en) | Switching voltage doubling rectifier circuit with low-voltage input/high-voltage output in discontinued current mode | |
| CN104638965A (en) | Off-grid photovoltaic power generation system inverter circuit | |
| CN103084295A (en) | Driving method and driving circuit of ultrasonic atomizer transduction piece | |
| CN102307408A (en) | Driving power supply for enamel electroluminescent panel | |
| CN107749671A (en) | Wireless charging device based on friction nanometer power generator | |
| CN201365202Y (en) | High-power audio switch power supply | |
| CN103341269A (en) | Light-emitting suspension structure based on wireless magnetic energy power supply | |
| CN109818427A (en) | The output modulation circuit and its metal-oxide-semiconductor control method of wireless power transmission systems receiving side | |
| CN109861352A (en) | Wireless charging circuit, device and its control method | |
| CN105471056A (en) | Wireless charging apparatus and method for wireless microphone | |
| CN209516748U (en) | A kind of output modulation circuit of wireless power transmission systems receiving side | |
| CN103207576A (en) | Achieving method for low-power high-frequency ultrasonic power source | |
| TWI430555B (en) | Class E DC - to - DC converter | |
| CN202395675U (en) | Sine-wave generator | |
| CN101072020B (en) | Generating circuit of field effect transistor dead zone control driving signal | |
| CN101604965A (en) | Generating circuit of field effect transistor dead zone control driving signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: YAN WEIMIN Free format text: FORMER OWNER: BEIJING DESHANG TECHNOLOGY CO., LTD. Effective date: 20121026 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121026 Address after: 100011 Beijing city Dongcheng District No. 10 Andrew hospital building 5, Room 201 Applicant after: Yan Weimin Address before: 100011 Beijing city Dongcheng District No. 10 Andrew hospital building 5, Room 201 Applicant before: Beijing Daysun Science & Technology Co.,Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120104 |