CN109256984A - Boosting and decompression can free switching integrated multi-functional pressure piezoelectric transformer and buck method - Google Patents
Boosting and decompression can free switching integrated multi-functional pressure piezoelectric transformer and buck method Download PDFInfo
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- H—ELECTRICITY
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- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
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Abstract
The invention discloses a kind of boosting and decompression can free switching integrated multi-functional pressure piezoelectric transformer and buck method, piezoelectric transformer includes upper bracket, piezoelectric ceramic piece and lower bracket, and piezoelectric ceramic piece applies pressure to piezoelectric ceramic piece by upper and lower bracket；Piezoelectric ceramic piece is followed successively by hollow area, decompression electrode zone, the first isolation region, input electrode region, the second isolation region, boosting electrode zone from inside to outside；Hollow area is the installation region of upper and lower bracket connection；There are three silver electrodes, including reduced output voltage electrode, input electrode, boosting output electrode for the upper surface plating of piezoelectric ceramic piece；The lower surface of piezoelectric ceramic piece is coated with null electrode；Each input electrode, each output electrode and null electrode draw a strip electrode line respectively.Multifunction piezoelectric actuator transformer device structure of the invention is simple, size is small, it is simple to manufacture, high-efficient, can freely carry out free switching between boosting and decompression according to demand.
Description
Technical field
The invention belongs to ceramic material fields, and in particular to it is a kind of boosting with decompression can free switching the more function of one
It can piezoelectric transformer and buck method.
Background technique
Currently, electromagnetic transformers are the transformer being most widely used in the market, this has benefited from its relatively high technology
Maturity and market dependency degree.With the development of science and technology, electronic product gradually develops towards micromation, integrated direction,
Electromagnetic transformers are limited to the problems such as volume is big, weight is big, inflammable and electromagnetic interference is serious, therefore how to find high-performance, can replace
It is just paid high attention to for property transformer.Piezoelectric transformer comes into being by its excellent performance, with traditional electromagnetism transformation
Device is compared, include its worn with small in size, light-weight, high temperature resistant, resistance, electromagnetism interference, high conversion efficiency, and have
The significant advantages such as short-circuit automatic protection functions.C.A.Rosen has most invented ROSE type piezoelectric step-up transformer earlier than 1950s, but
It was unable to satisfy practical application request at that time because material is limited at that time, step-up ratio obtained is low, output power is small, therefore
Fail to obtain enough concerns.In recent years, the invention of PZT piezoelectric ceramics and the progress of preparation process have greatly pushed boosting piezoelectricity
Transformer technology innovation, currently, PZT piezoelectric ceramic step-up transformer is in kinescope, tonotron, ion generator
It is applied in equal high-tension apparatuses.
Compared with piezoelectric step-up transformer, it is depressured the research and development starting evening of piezoelectric transformer, theory is developed so far and grinds
Study carefully very few.Before the nineties in last century, small-power, the market demand for being depressured piezoelectric transformer of small size are few.After the nineties, letter
It is rapid to cease industry development, has expedited the emergence of the demand for low-voltage, small-power output equipment, starts to greatly develop decompression pressure both at home and abroad
Piezoelectric transformer.Currently, decompression piezoelectric transformer is applied in the power supply adaptor of computer, mobile phone, volume has greatly been embodied
Small, light-weight advantage.
However, boosting be depressured can the integrated multi-functional pressure piezoelectric transformer of free switching be not developed also, mainly
The limitation of structure.And in daily life, step down and step up transformer is applied in different equipment or field, and this requires systems
Make different piezoelectric transformers.There is the integrated multi-functional pressure piezoelectric transformer for the free switching that can be depressured and boost, it can be by two
The application integrating of person is to together, to greatly reduce cost.
Summary of the invention
The purpose of the present invention is to provide a kind of one that will be boosted and price reduction is incorporated into the same piezoelectric transformer is more
Function piezoelectric transformer realizes the free switching of boosting with decompression.
In order to achieve the above object, the present invention provides the following technical scheme that
The present invention provides a kind of boosting and decompression can free switching integrated multi-functional pressure piezoelectric transformer, including upper branch
Frame, piezoelectric ceramic piece and lower bracket, piezoelectric ceramic piece apply pressure to piezoelectric ceramic piece by upper and lower bracket；
Piezoelectric ceramic piece includes 6 regions, is followed successively by hollow area, decompression electrode zone, the first isolation strip from inside to outside
Region, input electrode region, the second isolation region, boosting electrode zone；Hollow area is the installing zone of upper and lower bracket connection
Domain；There are three silver electrodes for the upper surface plating of piezoelectric ceramic piece, output electrode, input electrode region including decompression electrode zone
The output electrode of input electrode, the electrode zone that boosts；The lower surface of piezoelectric ceramic piece is coated with a null electrode；Each input electricity
Pole, each output electrode and null electrode draw a strip electrode line respectively.
Above-mentioned technical proposal is connect, piezoelectric ceramic piece is circular ring shape, decompression electrode zone, the first isolation region, input electricity
Polar region domain, the second isolation region, boosting electrode zone are circular annular region.
Above-mentioned technical proposal is connect, upper and lower bracket constrains piezoelectric ceramic piece by the way of bolt and nut locking, and
Circular ring type gasket is equipped between upper bracket and bolt.
Above-mentioned technical proposal is connect, lower bracket is cylinder, and the center point is equipped with a protruding column, installs spiral shell in the protruding column
Bolt limits upper bracket；A protruding circular ring is additionally provided in the middle part of the lower bracket, the protruding circular ring and upper bracket cooperate to pressure
Electroceramics piece is constrained, and facilitates piezoelectric ceramic piece welding electrode.
Above-mentioned technical proposal is connect, upper bracket is cylindrical or cone, and centre is equipped with screw hole, and top annulus has installation to limit
Effect, upper bracket top are equipped with an electrode ports, are used for extraction electrode line；Bottom annulus and lower bracket cooperate to piezoelectric ceramic piece into
Row constraint.
It is according to claim 2 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, feature
Be: circular ring type gasket is stainless steel gasket.
The present invention also provides it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck
Method, boosting by adopting the above technical scheme and decompression can free switching integrated multi-functional pressure piezoelectric transformer to piezoelectric ceramics
Piece is constrained, and realizes the decompression of depressurization area and region of boosting by adjusting the diameter of upper and lower bracket or the position of isolation strip
Boosting.
The present invention also provides it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck
Method, boosting by adopting the above technical scheme and decompression can free switching integrated multi-functional pressure piezoelectric transformer to piezoelectric ceramics
Piece is constrained, and the boosting of the decompression of depressurization area and region of boosting is realized by adjusting the thickness of piezoelectric ceramic piece.
The present invention also provides it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck
Method, boosting by adopting the above technical scheme and decompression can free switching integrated multi-functional pressure piezoelectric transformer to piezoelectric ceramics
Piece is constrained, and the boosting of the decompression of depressurization area and region of boosting is realized by adjusting the overall diameter of piezoelectric ceramic piece.
The present invention also provides it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck
Method, boosting by adopting the above technical scheme and decompression can free switching integrated multi-functional pressure piezoelectric transformer to piezoelectric ceramics
Piece is constrained, and the width by adjusting isolation region adjusts voltage value.
Beneficial effects of the present invention: boosting of the invention and decompression can free switching integrated multi-functional pressure piezoelectric transformer knot
Structure is simple, size is small, it is simple, high-efficient to manufacture, and can freely carry out freely cutting between boosting and decompression according to demand
It changes.Piezoelectric ceramic piece is applied using upper and lower bracket and is constrained, it is different straight by being obtained and different location plated electrode in output end
Galvanic electricity pressure.By multiple output ends, an input terminal, there is different output voltages in different output ends.At reduced output voltage end
The DC voltage that 220V AC voltage through overdrive circuit can be converted to 1~100V can will pass through in boosting output end and drive
The 220V AC voltage of dynamic circuit is converted to the DC voltage of 500~1000V.
Detailed description of the invention
Fig. 1 be the embodiment of the present invention boost be depressured can free switching integrated multi-functional pressure piezoelectric transformer explosion figure；
Fig. 2 a be the embodiment of the present invention boost be depressured can free switching integrated multifunction piezoelectric actuator transformer packaging structure
Schematic diagram；
Fig. 2 b is A-A sectional view in Fig. 2 a；
Fig. 3 a, main view, left view and the top view that 3b, 3c are upper bracket；
Fig. 4 a, the A-A sectional view that 4b, 4c are lower bracket main view, top view and top view；
Fig. 5 a, 5b are the piezoelectric ceramic piece main view and left view of the specific embodiment of the invention；
Fig. 6 is the reduced output voltage end voltage-frequency curve of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure；
Fig. 7 is boosting output end voltage-frequency curve of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure；
Fig. 8 is the anti-frequency curve of reduced output voltage end resistance of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure；
Fig. 9 is the boosting output end impedance-frequency curve of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure；
Figure 10 is the reduced output voltage end power versus frequency curve of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure；
Figure 11 is the boosting output end power versus frequency curve of the integrated multi-functional pressure piezoelectric transformer of the specific embodiment of the invention
Figure.
Specific embodiment
The present invention will be further explained with reference to the examples below.
A kind of boosting of the invention and decompression can the integrated multi-functional pressure piezoelectric transformer of free switching utilize upper and lower bracket pair
Piezoelectric ceramic piece applies constraint, by obtaining different DC voltages in output end in different location plated electrode.
As shown in Figure 1, piezoelectric step-up transformer of the invention includes upper bracket 2, piezoelectric ceramic piece 3 and lower bracket 13, pressure
Electroceramics piece 3 applies pressure to piezoelectric ceramic piece by upper and lower bracket.
As shown in Fig. 5 a, 5b, piezoelectric ceramic piece 3 include 6 regions, be followed successively by from inside to outside be followed successively by from inside to outside it is hollow
Region 10 is isolated in region 14, decompression electrode zone 15, first, region 16 is isolated in input electrode region 11, second, boosting electricity
Polar region domain 17；Hollow area 14 is the installation region of upper and lower bracket connection；There are three silver electricity for the upper surface plating of piezoelectric ceramic piece 3
Pole is isolated between three silver electrodes by the first isolation region 10 and the second isolation region 16.The following table of piezoelectric ceramic piece
Face is coated with a null electrode (can be using the entire lower surface of piezoelectric ceramic piece 3 as a null electrode)；It is each input electrode, each
Output electrode and null electrode draw a strip electrode line respectively.In the embodiment of the present invention, as shown in Figure 1, piezoelectric ceramic piece 3
Decompression electrode zone 15 and input electrode region 11 be respectively coated with a silver electrode, centre is separated with the first area of isolation 10.Drop
The silver electrode for pressing electrode zone 15 is output electrode, is depressured the output electrode extraction electrode line 9 of electrode zone 15, is reduced output voltage
End.The silver electrode in input electrode region 11 is input electrode, and the input electrode extraction electrode line 4 in input electrode region 11 is defeated
Enter end.The silver electrode of boosting electrode zone 17 is output electrode, and the silver electrode of boosting electrode zone 17 is output electrode, and output is electric
Pole extraction electrode line 18, for the output end that boosts.The null electrode extraction electrode line 5 of piezoelectric ceramic piece bottom.
In one embodiment of the present of invention, piezoelectric ceramic piece 3 is circular ring shape, with a thickness of t.It is depressured electrode zone 15, the
Region 16 is isolated in one isolation region 10, input electrode region 11, second, boosting electrode zone 17 is circular annular region.
The polarization of piezoelectric ceramic piece through-thickness.
The mode that bolt and nut locking can be used in upper and lower bracket constrains piezoelectric ceramic piece, and upper bracket 2 and bolt 1
Between be equipped with circular ring type gasket 7.Stainless steel gasket can be selected in circular ring type gasket 7, which has high-intensitive feature.
The bolt 1 and nut 6 that the present invention uses are standard component.Upper bracket can be plastics, bolt locking after easy local deformation, therefore need
Add with high-intensitive stainless steel gasket, it is ensured that piezoelectric ceramic piece can be constrained in the bottom of upper bracket.
As shown in Fig. 4 a, 4b, 4c, lower bracket can be cylinder, and the center point is equipped with a protruding column 131, and bolt 1 passes through should
Protruding column, piezoelectric ceramics 3 are set in protruding column by hollow area 14.Protruding column is mainly used for limiting upper bracket
Position.A protruding circular ring 132 is additionally provided in the middle part of the lower bracket, piezoelectric ceramics 3 is placed on the protruding circular ring.The protruding circular ring with it is upper
Support assorted constrains piezoelectric ceramic piece, and facilitates piezoelectric ceramic piece welding electrode；13 are equipped with an electrode ports on lower bracket
12, it is used for extraction electrode line.
Upper bracket can be equipped with screw hole for cylindrical or cone, centre, and top annulus has installation position-limiting action, upper bracket top
Portion is equipped with an electrode ports 8, is used for extraction electrode line；Bottom annulus constrains piezoelectric ceramic piece with lower bracket cooperation.
Boosting of the invention and decompression can free switching integrated multi-functional pressure piezoelectric transformer, using upper and lower bracket to piezoelectricity
Potsherd applies constraint, by obtaining different DC voltages in output end and different location plated electrode.The piezoelectric transformer has
Multiple output ends, an input terminal, there is different output voltages in different output ends.Output end includes that decompression is defeated in the present invention
Outlet and boosting output end.At the resonant frequency fx, which can be by the 220V through overdrive circuit at reduced output voltage end
Alternating voltage is converted to the DC voltage of 1~100V, can turn the 220V AC voltage through overdrive circuit in boosting output end
It is changed to the DC voltage of 500~1000V.Resonance impedance changes less than 10 Ω, output power according to the difference of load at this time.
Upper and lower bracket of the present invention can clamp piezoelectric ceramic piece 3, inhibit the effect of vibration.Because vibration can elevate the temperature,
Therefore using has some strength, heat-resisting, wear-resisting material.Meanwhile piezoelectric transformer is electronic component, it is necessary to have certain
Insulating properties, therefore select POM (polyformaldehyde).
The explosion figure of Fig. 1 is assembled, integrated multi-functional pressure piezoelectric transformer is obtained, using this structure to piezoelectric ceramics into
Row constraint, can obtain low pressure at reduced output voltage end, obtain high pressure in boosting output end.Adjusting voltage of the invention has below several
Kind mode: (1) upper and lower bracket, which provides the position difference inhibited to piezoelectric ceramic vibration, can change voltage value.(2) piezoelectric ceramic piece
Thickness also be adjusted reduced output voltage end and boost output end voltage.(3) reduced output voltage end is also adjusted in the width of isolation strip
With the voltage of boosting output end.(4) voltage at reduced output voltage end and the output end that boosts also is adjusted in the overall diameter of potsherd.(5)
Load has larger impact to output voltage values, can adjust voltage value by adjusting load in the case where permission.
Upper and lower bracket, which provides the position difference inhibited to piezoelectric ceramic vibration, can change voltage value, the suppression to the first isolation strip
System is more, and the decompression of depressurization area is more obvious, and vice versa, therefore can be isolated by adjusting the diameter of upper bracket bottom or first
The decompression of different depressurization areas is realized in the position of band.And the boosting in region of boosting is more obvious, vice versa, therefore can pass through
Realize the boosting in different boosting regions in the position of the diameter or isolation strip that adjust upper bracket bottom.
The thickness of piezoelectric ceramic piece is bigger, and depressurization area output voltage values are lower, therefore can be made pottery by appropriate adjustment piezoelectricity
The thickness of tile reduces the voltage value of depressurization area.And thickness increases, the voltage value in region of boosting reduces, therefore can be by suitable
The voltage value in boosting region is increased when the thickness of adjustment piezoelectric ceramic piece.
The overall diameter of piezoelectric ceramic piece is bigger, and the voltage value of depressurization area is lower, therefore can appropriate adjustment piezoelectric ceramic piece
Overall diameter reduce the voltage of depressurization area.And overall diameter increases, the voltage value in region of boosting increases, therefore can appropriate adjustment
The overall diameter of piezoelectric ceramic piece come increase boosting region voltage.
The specific implementation step of buck of the present invention is as follows:
1) output voltage, performance number and load resistor value are determined；
2) finite element modelling is carried out according to output voltage, performance number, determines that the distance of upper bracket bottom is taken in isolation to；
3) isolation strip width, piezoelectric ceramic piece thickness and outer diameter are adjusted and determine each part size；
4) part is made, determines the resonant of potsherd；
5) sample is assembled, reduced output voltage end or boosting output end connect load R；
6) resonance frequency that electric voltage frequency is adjusted to piezoelectric ceramic piece is connected to by input terminal using control circuit；
7) in measurement of output end output voltage values U, calculated power value P=U^2/R；
In specific embodiments of the present invention, as shown in figure 5, when having φ=40mm, D1=34mm, D2=32mm, D3=
When the potsherd of 20mm, D4=18mm, D=8.2mm, the overall diameter of upper bracket bottom is designed as 18mm, interior diameter is designed as
16mm；Piezoelectric ceramic piece is constrained using the above structure.It connects and bears with 5 both ends of null electrode line in reduced output voltage electrode wires 9
Carry R1=100 Ω；The frequency of the input voltage of 220V/50Hz is adjusted near resonance frequency 85kHz using control circuit, at this time
Input voltage is about 120V, and the input terminal which is linked into input electrode line 4 and null electrode line 5 carries out piezoelectric ceramic piece
Excitation.Voltage of the reduced output voltage end under different frequency near resonance frequency, impedance, performance number can be obtained, as shown in table 1 below.
When the frequency of input voltage is adjusted to resonance frequency 85kHz, input voltage is about 120V at this time, using multimeter to the electricity at the both ends R
Pressure is tested, and it is about 36V that voltage value, which can be obtained, so power at this time is P=36*36/100=12.96W.And at this time
Impedance is about 7 Ω.Reduced output voltage end voltage-frequency curve graph is as shown in Figure 6；The anti-frequency curve chart of reduced output voltage end resistance such as Fig. 8
It is shown.Reduced output voltage end power versus frequency curve graph is as shown in Figure 10.
Table 1 is voltage of the reduced output voltage end under different frequency near resonance frequency, impedance, performance number
| Frequency F (kHz) | Voltage U (V) | Impedance Z (Ω) | Power P (W) |
| 78.00 | 2.37 | 82.43 | 0.06 |
| 79.00 | 2.88 | 70.75 | 0.08 |
| 80.00 | 3.62 | 58.90 | 0.13 |
| 81.00 | 4.75 | 46.86 | 0.23 |
| 82.00 | 6.72 | 34.62 | 0.45 |
| 83.00 | 10.92 | 22.26 | 1.19 |
| 84.00 | 24.66 | 10.31 | 6.08 |
| 85.00 | 36.26 | 7.34 | 13.15 |
| 86.00 | 14.56 | 19.12 | 2.12 |
| 87.00 | 8.90 | 32.77 | 0.79 |
| 88.00 | 6.49 | 47.08 | 0.42 |
| 89.00 | 5.17 | 61.95 | 0.27 |
| 90.00 | 4.34 | 77.39 | 0.19 |
| 91.00 | 3.77 | 93.43 | 0.14 |
| 92.00 | 3.36 | 110.14 | 0.11 |
Load R is connected with 5 both ends of null electrode line in boosting output electrode line 182=2000 Ω；It will using control circuit
The frequency of the input voltage of 220V/50Hz is adjusted near resonance frequency 85kHz, and input voltage is about 120V at this time, by the voltage
The input terminal for being linked into input electrode line 4 and null electrode line 5 motivates piezoelectric ceramic piece.Boosting output end can be obtained humorous
Voltage, impedance, performance number under the nearly different frequency of vibration row's frequency.When the frequency of input voltage is adjusted to resonance frequency 85kHz, at this time
Input voltage is about 120V, using multimeter to R2The voltage at both ends is tested, and it is about 1039V that voltage value, which can be obtained, so
Power at this time is calculated according to P=U^2/R formula, obtains P1=1198*1198/2000=717.6W, and impedance at this time is about
For 14.78 Ω.Output end voltage-the frequency curve chart that boosts is as shown in Figure 7；Boost output end impedance-frequency curve graph such as Fig. 9；
Boost output end power versus frequency curve graph such as Figure 11.
Table 2 is the voltage to boost output end under the nearly different frequency of resonance row's frequency, impedance, performance number
Boosting of the invention and decompression can free switching integrated multifunction piezoelectric actuator transformer device structure it is simple, processing preparation is held
Easily；The present invention has the multi-functional characteristic of one that can boost but also be depressured, can between boosting and decompression free switching；And
Voltage change range is wide (1~2000V).
Protection content of the invention is not limited to above embodiments, and those skilled in the art is by reading explanation of the invention
Book and to structure and packaging method of the invention carry out various modification and variations without departing from the spirit and scope of the present invention appoint
What equivalent transformation, all are covered by the claims of the invention.
Claims (10)
1. it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that: include upper bracket, piezoelectricity
Potsherd and lower bracket, piezoelectric ceramic piece apply pressure to piezoelectric ceramic piece by upper and lower bracket；
Piezoelectric ceramic piece include 6 regions, be followed successively by from inside to outside hollow area, decompression electrode zone, first isolation region,
Input electrode region, the second isolation region, boosting electrode zone；Hollow area is the installation region of upper and lower bracket connection；Pressure
There are three silver electrodes for the upper surface plating of electroceramics piece, the input of output electrode, input electrode region including being depressured electrode zone
The output electrode of electrode, the electrode zone that boosts；The lower surface of piezoelectric ceramic piece is coated with a null electrode；It is each input electrode, every
A output electrode and null electrode draw a strip electrode line respectively.
2. it is according to claim 1 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that:
Piezoelectric ceramic piece is circular ring shape, and decompression electrode zone, input electrode region, the second isolation region, rises at the first isolation region
Pressing electrode zone is circular annular region.
3. it is according to claim 1 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that:
Upper and lower bracket constrains piezoelectric ceramic piece by the way of bolt and nut locking, and annulus is equipped between upper bracket and bolt
Type gasket.
4. it is according to claim 2 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that:
Lower bracket is cylinder, and the center point is equipped with a protruding column, installs bolt in the protruding column, limit to upper bracket；It should
A protruding circular ring is additionally provided in the middle part of lower bracket, which constrains piezoelectric ceramic piece with upper bracket cooperation, and side
Just piezoelectric ceramic piece welding electrode.
5. it is according to claim 2 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that:
Upper bracket is cylindrical or cone, and centre is equipped with screw hole, and top annulus has installation position-limiting action, an electricity is equipped at the top of upper bracket
In highest terms, it is used for extraction electrode line；Bottom annulus constrains piezoelectric ceramic piece with lower bracket cooperation.
6. it is according to claim 2 boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer, it is characterized in that:
Circular ring type gasket is stainless steel gasket.
7. it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck method, it is characterized in that: adopting
With in claim 1-5 boosting and decompression can the integrated multi-functional pressure piezoelectric transformer of free switching piezoelectric ceramic piece is carried out about
Beam realizes the boosting of the decompression of depressurization area and region of boosting by adjusting the diameter of upper and lower bracket or the position of isolation strip.
8. it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck method, it is characterized in that: adopting
With in claim 1-5 boosting and decompression can the integrated multi-functional pressure piezoelectric transformer of free switching piezoelectric ceramic piece is carried out about
Beam realizes the boosting of the decompression of depressurization area and region of boosting by adjusting the thickness of piezoelectric ceramic piece.
9. it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck method, it is characterized in that: adopting
With in claim 1-5 boosting and decompression can the integrated multi-functional pressure piezoelectric transformer of free switching piezoelectric ceramic piece is carried out about
Beam realizes the boosting of the decompression of depressurization area and region of boosting by adjusting the overall diameter of piezoelectric ceramic piece.
10. it is a kind of boosting with decompression can free switching integrated multi-functional pressure piezoelectric transformer buck method, it is characterized in that: adopting
With in claim 1-5 boosting and decompression can the integrated multi-functional pressure piezoelectric transformer of free switching piezoelectric ceramic piece is carried out about
Beam, the width by adjusting isolation region adjust voltage value.
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Application publication date: 20190122 |