CN108809106A - A kind of the high direct voltage converter and its production technology of ultra-thin no electromagnetic interference - Google Patents
A kind of the high direct voltage converter and its production technology of ultra-thin no electromagnetic interference Download PDFInfo
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- CN108809106A CN108809106A CN201810715837.2A CN201810715837A CN108809106A CN 108809106 A CN108809106 A CN 108809106A CN 201810715837 A CN201810715837 A CN 201810715837A CN 108809106 A CN108809106 A CN 108809106A
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- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000005516 engineering process Methods 0.000 title claims description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000002708 enhancing effect Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 24
- 238000012856 packing Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910002059 quaternary alloy Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of high direct voltage converters of ultra-thin no electromagnetic interference, its drip irrigation device includes signal generating circuit, power enhancing circuit, booster circuit, voltage doubling rectifing circuit, the input terminal that the output end of the signal generating circuit enhances circuit with power is connect, the output end of the power enhancing circuit and the input terminal of booster circuit connect, the output end of the booster circuit and the input terminal of voltage doubling rectifing circuit connect, the generator of the booster circuit is piezoelectric ceramic transformer, reach and effectively reduced volume, has eliminated the effect of electromagnetic interference.
Description
Technical field
The present invention relates to high tension transformer fields, and in particular to a kind of high direct voltage converter of ultra-thin no electromagnetic interference.
Background technology
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Grade coil and iron core.Major function has:Voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing etc..Current direct current becomes
The scheme of high-voltage electricity is typically by the way of electromagnetic induction, and usually volume is big and adjoint after this transformer adds skeleton
Electromagnetic interference.
Invention content
The purpose of the present invention is to provide a kind of high direct voltage converters of ultra-thin no electromagnetic interference, existing straight to solve
The problem of volume is big existing for convertor transformer or high direct voltage converter, electromagnetic interference big problem.
To achieve the above object, the technical scheme is that a kind of high direct voltage converter of ultra-thin no electromagnetic interference,
Including signal generating circuit, power enhancing circuit, booster circuit, voltage doubling rectifing circuit, the output end of the signal generating circuit
The input terminal for enhancing circuit with power is connect, and the output end of the power enhancing circuit and the input terminal of booster circuit connect, institute
The input terminal of the output end and voltage doubling rectifing circuit of stating booster circuit connects, and the generator of the booster circuit becomes for piezoelectric ceramics
Depressor.
As advanced optimizing, the power enhancing circuit includes capacitance C1, capacitance C2, resistance R1, resistance R2, diode
D1, diode D2, triode Q1 and triode Q2, wherein the one end resistance R1 is connect with power supply VCC, the resistance R1 other ends and three
The base stage of pole pipe Q1 is connected with diode D1 anodes, and the collector of triode Q1 is connect with power supply VCC, the one end resistance R2 and power supply
VCC connections, the resistance R2 other ends are connect with the base stage of triode Q2 and diode D2 cathode, the collector and power supply of triode Q2
VCC connections, the one end capacitance C1 input signal, the other end are separately connected diode D1 cathode and diode D2 anodes, capacitance C2 mono-
The output end of end connection power supply VCC, other end connection ground wire, triode Q1 and triode Q2 enhance circuit as power simultaneously
Output end.
As advanced optimizing, the signal generating circuit includes resistance R1, resistance R2, resistance R3, resistance R4, capacitance
C1, capacitance C2, capacitance C3, capacitance C4 and operational amplifier, wherein power supply VCC connects ground wire, the one end capacitance C1 by neutrality line
It being connect with neutrality line, the other end connects ground wire, and the one end resistance R1 connects ground wire, and the other end connects the input terminal a of operational amplifier,
Resistance 4 connect opamp input terminal b with one end after capacitance C3 parallel connections, and the other end connects the one end line resistance R2 and connects operation
The input terminal a of amplifier, the other end connect the output end o of operational amplifier, and capacitance C2 connect fortune with one end after resistance R3 series connection
The input terminal b of amplifier is calculated, the other end connects the output end o of operational amplifier, and the output end o extraction wires of operational amplifier are made
For the output end of signal generating circuit.
As advanced optimizing, the voltage doubling rectifing circuit includes at least two diode D1-Dn and at least two capacitances
C1-Cm, wherein n and m are the integer more than 1, are serially connected between multiple diode D1-Dn, and each diode pair answers parallel connection
One capacitance.
As advanced optimizing, High voltage output is additionally provided on the high direct voltage converter of the ultra-thin no electromagnetic interference
Condition monitoring and protection circuit, condition monitoring and the protection circuit of High voltage output include sequentially connected sampling resistor Rsam, mould
Quasi- digital quantizer ADC and single-chip microprocessor MCU, the one end sampling resistor Rsam and the power input cathode of power enhancing circuit connect
It connects, the other end is connect with the input terminal of analog-digital converter ADC.
A kind of production technology of the high direct voltage converter of ultra-thin no electromagnetic interference, which is characterized in that include the following steps：
Step 1, circuit board of the production for the high direct voltage converter of ultra-thin no electromagnetic interference；
Step 2, circuit board is put into shell；
Step 3, enclosure is injected into packing material；
Step 4, packing material is made fully to solidify.
As advanced optimizing, " production is used for the electricity of the high direct voltage converter of ultra-thin no electromagnetic interference described in step 1
Inlet is opened up around piezoelectric ceramic transformer on circuit boards when road plate ".
As advanced optimizing, " shell " described in step 2 is made of high insulating materials, " filling material described in step 3
Material " uses epoxy resin.
As advanced optimizing, " injection packing material " described in step 3 is after packing material injection using vacuumizing
Mode ensures that packing material fills up all gaps.
As advanced optimizing, " packing material is made fully to solidify " described in step 4 is put into oven progress using by shell
The mode of high-temperature baking carries out.
The invention has the advantages that：
1, the high direct voltage converter of ultra-thin no electromagnetic interference disclosed by the invention becomes with the induction direct current of tradition
Parallel operation compares, and there's almost no electromagnetic interference, volume also smaller, thinner, and voltage is higher, and the volume of saving is more.
2, the condition monitoring and protection circuit of High voltage output are provided on the high direct voltage converter of ultra-thin no electromagnetic interference,
It converts the input current variation caused by output power changes to voltage signal by sampling resistor, then becomes several by ADC
Word signal enters MCU real time monitorings, can effectively play monitoring and protective action.
3, the production process of the high direct voltage converter of ultra-thin no electromagnetic interference is simple to operation, and product quality stablizes jail
Gu suitable for producing in batches and promoting the use of.
Description of the drawings
Fig. 1 is operation logic figure of the present invention；
Fig. 2 is signal generating circuit figure；
Fig. 3, which is power, enhances circuit diagram；
Fig. 4 is voltage doubling rectifing circuit figure；
Fig. 5 is schematic structural view of the invention.
Reference numeral
1, circuit board；11, piezoelectric ceramic transformer；12, diode；13, capacitance；14, injection hole；2, shell.
Specific implementation mode
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment one
A kind of high direct voltage converter of ultra-thin no electromagnetic interference enhances in conjunction with Fig. 1, including signal generating circuit, power
The output end of circuit, booster circuit, voltage doubling rectifing circuit, signal generating circuit is connect with the input terminal of power enhancing circuit, work(
The input terminal for the output end and booster circuit that rate enhances circuit connects, the output end of booster circuit and the input of voltage doubling rectifing circuit
The generator of end connection, booster circuit is piezoelectric ceramic transformer 11, and the direct current of ultra-thin no electromagnetic interference disclosed by the invention is high
Buckling parallel operation carries out boosting inverter using mechanical piezoelectric ceramic transformer 11, effectively reduces volume, eliminates electromagnetic interference.
With traditional electromagnetic type transformer ratio compared with structure, the technique skill of material, product used in piezoelectric ceramic transformer 11
Art and operation principle are all different.Main material used in electromagnetic type transformer is magnetic material and conductive material, is used separately as structure
Magnetic core and winding, energy conversion form is electricity-magnetic-electricity.And the main material used in piezoelectric ceramic transformer 11 is binary system
Piezoceramic material (PZT) such as lead zirconate titanate, ternary system piezoelectric ceramic (PCM, PSM) --- added on the basis of PZT
Other elements and quaternary system piezoelectric ceramic material (PMMN) etc., product, energy are made through high temperature sintering and high voltage polarization
Mapping mode is electric energy-mechanical energy-electric energy.
In conjunction with Fig. 2, signal generating circuit includes resistance R1, resistance R2, resistance R3, resistance R4, capacitance C1, capacitance C2, electricity
Hold C3, capacitance C4 and operational amplifier, wherein power supply VCC connects ground wire by neutrality line, and the one end capacitance C1 connects with neutrality line
It connects, the other end connects ground wire, and the one end resistance R1 connects ground wire, and the other end connects the input terminal a of operational amplifier, resistance 4 and electricity
One end connects opamp input terminal b after holding C3 parallel connections, and the other end connects the one end line resistance R2 connection operational amplifier
Input terminal a, the other end connect the output end o of operational amplifier, and capacitance C2 connect operational amplifier with one end after resistance R3 series connection
Input terminal b, the other end connects the output end o of operational amplifier, and the output end o extraction wires of operational amplifier are as signal hair
The output end of raw circuit, signal generating circuit are not limited to this one kind of the present embodiment description, can also be that high-precision signal is sent out
Circuit occurs for raw circuit or other signals.
In conjunction with Fig. 3, it includes capacitance C1, capacitance C2, resistance R1, resistance R2, diode D1, diode that power, which enhances circuit,
D2, triode Q1 and triode Q2, wherein the one end resistance R1 is connect with power supply VCC, the base of the resistance R1 other ends and triode Q1
Pole is connected with diode D1 anodes, and the collector of triode Q1 is connect with power supply VCC, and the one end resistance R2 is connect with power supply VCC, electricity
The resistance R2 other ends are connect with the base stage of triode Q2 and diode D2 cathode, and the collector of triode Q2 is connect with power supply VCC, electricity
Hold the one end C1 input signal, the other end is separately connected diode D1 cathode and diode D2 anodes, and the one end capacitance C2 connects power supply
The output end of VCC, other end connection ground wire, triode Q1 and triode Q2 enhance the output end of circuit as power simultaneously.
In conjunction with Fig. 4, voltage doubling rectifing circuit includes at least two diode D1-Dn and at least two capacitance C1-Cm, wherein n
It is the integer more than 1 with m, is serially connected between multiple diode D1-Dn, and each diode pair should be connected in parallel with a capacitor,
Concatenated number of diodes more multivoltage is higher in voltage doubling rectifing circuit.
Direct current is become fixed frequency by the high direct voltage converter of ultra-thin no electromagnetic interference by signal generating circuit
Sine wave reinforces driving, driving power W0, using piezoelectric ceramic transformer 11 according to (1 through overpower enhancing circuit：N)
Step-up ratio is boosted, simultaneously rectification of then further being boosted by voltage doubling rectifing circuit, final output high direct voltage, power W1
=W0*k (k is transfer efficiency), it is preferred that direct current is become the sine wave of 1MHZ by signal generating circuit.
For the safety of the high direct voltage converter of the ultra-thin no electromagnetic interference of enhancing, the high direct voltage of ultra-thin no electromagnetic interference
The condition monitoring and protection circuit of High voltage output are additionally provided on converter, condition monitoring and the protection circuit of High voltage output include
Sequentially connected sampling resistor Rsam, analog-digital converter ADC and single-chip microprocessor MCU, the one end sampling resistor Rsam increase with power
The power input cathode on forceful electric power road connects, and the other end is connect with the input terminal of analog-digital converter ADC, as further excellent
Change, the condition monitoring of High voltage output is also associated with low-pass filter on protection circuit, will be because of output by sampling resistor Rsam
Input current variation caused by changed power is converted into voltage signal.
By this faint voltage signal by after Linear Amplifer, making signal smoothing by low-pass filter.Pass through mould again
Quasi- digital quantizer ADC becomes digital signal and enters single-chip microprocessor MCU real time monitoring.If thering are abnormal conditions just shutdown driving occur to increase
The power input on forceful electric power road.
Embodiment two
A kind of production technology of the high direct voltage converter of ultra-thin no electromagnetic interference includes the following steps in conjunction with Fig. 5：
Step 1, circuit 1 of the production for the high direct voltage converter of ultra-thin no electromagnetic interference, the circuit board 1 are set as long
Rectangular plate shape, and be located on the circuit card 1 around piezoelectric ceramic transformer 11 and in the voltage doubling rectifing circuit of wiring board
Capacitance 13 and the position of the lower section of diode 12 open up inlet 14, which can increase creepage distance, while may be used also
For the reserved enough spaces of injection of packing material；
Step 2, circuit board 1 is put into high insulating material housing 2, holding circuit plate 1 is parallel with 2 bottom surface of shell；
Step 3, packing material is injected into 2 inside of shell, ensures to fill by the way of vacuumizing after packing material injection
Material fills up all gaps, which uses epoxy resin, epoxy resin that can be anti-interference and prevent high voltage arc, improves steady
It is qualitative；
Step 4, shell 2 is put into oven progress high-temperature baking makes packing material fully solidify.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (10)
1. a kind of high direct voltage converter of ultra-thin no electromagnetic interference, which is characterized in that enhance including signal generating circuit, power
The input terminal of circuit, booster circuit, voltage doubling rectifing circuit, the output end and power enhancing circuit of the signal generating circuit connects
It connects, the output end of the power enhancing circuit and the input terminal of booster circuit connect, the output end and multiplication of voltage of the booster circuit
The input terminal of rectification circuit connects, and the generator of the booster circuit is piezoelectric ceramic transformer.
2. the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 1, which is characterized in that the power increases
Forceful electric power road includes capacitance C1, capacitance C2, resistance R1, resistance R2, diode D1, diode D2, triode Q1 and triode Q2,
In, the one end resistance R1 is connect with power supply VCC, and the resistance R1 other ends are connect with the base stage of triode Q1 and diode D1 anodes, and three
The collector of pole pipe Q1 is connect with power supply VCC, and the one end resistance R2 is connect with power supply VCC, and the resistance R2 other ends are with triode Q2's
Base stage is connected with diode D2 cathode, and the collector of triode Q2 is connect with power supply VCC, the one end capacitance C1 input signal, another
End is separately connected diode D1 cathode and diode D2 is positive, the one end capacitance C2 connection power supply VCC, other end connection ground wire, and three
The output end of pole pipe Q1 and triode Q2 enhance the output end of circuit as power simultaneously.
3. the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 1, which is characterized in that the signal hair
Raw circuit includes resistance R1, resistance R2, resistance R3, resistance R4, capacitance C1, capacitance C2, capacitance C3, capacitance C4 and operation amplifier
Device, wherein power supply VCC connects ground wire by neutrality line, and the one end capacitance C1 is connect with neutrality line, and the other end connects ground wire, resistance
The one end R1 connects ground wire, and the other end connects the input terminal a of operational amplifier, and resistance 4 connect operation with one end after capacitance C3 parallel connections
Amplifier in b, the other end connect the input terminal a of the one end line resistance R2 connection operational amplifier, and the other end connects operation
The output end o of amplifier, capacitance C2 connect the input terminal b of operational amplifier, other end connection fortune with one end after resistance R3 series connection
Calculate the output end o of amplifier, the output end of the output end o extraction wires of operational amplifier as signal generating circuit.
4. the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 1, which is characterized in that described times of repoussage
Current circuit includes at least two diode D1-Dn and at least two capacitance C1-Cm, wherein n and m is integer more than 1, and multiple two
It is serially connected between pole pipe D1-Dn, and each diode pair should be connected in parallel with a capacitor.
5. the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 1, which is characterized in that the ultra-thin nothing
The condition monitoring and protection circuit, the state of High voltage output of High voltage output are additionally provided on the high direct voltage converter of electromagnetic interference
Monitoring includes sequentially connected sampling resistor Rsam, analog-digital converter ADC and single-chip microprocessor MCU, sampling electricity with protection circuit
The power input cathode that resistance one end Rsam enhances circuit with power is connect, the input of the other end and analog-digital converter ADC
End connection.
6. a kind of production technology of the high direct voltage converter of ultra-thin no electromagnetic interference, which is characterized in that include the following steps：
Step 1, circuit board of the production for the high direct voltage converter of ultra-thin no electromagnetic interference；
Step 2, circuit board is put into shell；
Step 3, enclosure is injected into packing material；
Step 4, packing material is made fully to solidify.
7. the production technology of the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 6, which is characterized in that
Piezoelectricity is made pottery on circuit boards when " circuit board of the production for the high direct voltage converter of ultra-thin no electromagnetic interference " described in step 1
Inlet is opened up around porcelain transformer.
8. the production technology of the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 7, which is characterized in that
" shell " described in step 2 is made of high insulating materials, and " packing material " described in step 3 uses epoxy resin.
9. the production technology of the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 7, which is characterized in that
It is all that " injection packing material " described in step 3 by the way of vacuumizing ensures that packing material fills up after packing material injection
Gap.
10. the production technology of the high direct voltage converter of ultra-thin no electromagnetic interference according to claim 7, feature exist
In, " packing material is made fully to solidify " described in step 4 using shell is put into oven carry out high-temperature baking by the way of carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715837.2A CN108809106B (en) | 2018-06-29 | Ultrathin direct-current high-voltage converter without electromagnetic interference and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715837.2A CN108809106B (en) | 2018-06-29 | Ultrathin direct-current high-voltage converter without electromagnetic interference and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108809106A true CN108809106A (en) | 2018-11-13 |
| CN108809106B CN108809106B (en) | 2024-07-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582640A (en) * | 2009-06-19 | 2009-11-18 | 广州金升阳科技有限公司 | High-efficiency low-electromagnetic interference power converter |
| CN102005925A (en) * | 2009-08-28 | 2011-04-06 | 通用电气公司 | Power supply with a piezoelectric transformer and method for power conversion |
| CN104539299A (en) * | 2014-10-21 | 2015-04-22 | 中国船舶重工集团公司第七一〇研究所 | Small-sized underwater low-frequency acoustic transmitter |
| CN106936317A (en) * | 2017-03-16 | 2017-07-07 | 西安电子科技大学 | The adjustable lightweight electrostatic high-pressure generator of one kind output |
| CN208797833U (en) * | 2018-06-29 | 2019-04-26 | 广州蓝之林科技有限公司 | A kind of high direct voltage converter of ultra-thin no electromagnetic interference |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582640A (en) * | 2009-06-19 | 2009-11-18 | 广州金升阳科技有限公司 | High-efficiency low-electromagnetic interference power converter |
| CN102005925A (en) * | 2009-08-28 | 2011-04-06 | 通用电气公司 | Power supply with a piezoelectric transformer and method for power conversion |
| CN104539299A (en) * | 2014-10-21 | 2015-04-22 | 中国船舶重工集团公司第七一〇研究所 | Small-sized underwater low-frequency acoustic transmitter |
| CN106936317A (en) * | 2017-03-16 | 2017-07-07 | 西安电子科技大学 | The adjustable lightweight electrostatic high-pressure generator of one kind output |
| CN208797833U (en) * | 2018-06-29 | 2019-04-26 | 广州蓝之林科技有限公司 | A kind of high direct voltage converter of ultra-thin no electromagnetic interference |
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Effective date of registration: 20190329 Address after: 510000 F7-E24, 5th floor, Venus Building, No. 1 Hanjing Road, Tianhe District, Guangzhou City, Guangdong Province Applicant after: GUANGZHOU LANZHILIN TECHNOLOGY Co.,Ltd. Address before: 510525 Zhujia 2 Lane, Lianhe Street, Huangpu District, Guangzhou City, Guangdong Province Applicant before: Du Xuke |
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