CN208638271U - A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit - Google Patents
A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit Download PDFInfo
- Publication number
- CN208638271U CN208638271U CN201821238933.4U CN201821238933U CN208638271U CN 208638271 U CN208638271 U CN 208638271U CN 201821238933 U CN201821238933 U CN 201821238933U CN 208638271 U CN208638271 U CN 208638271U
- Authority
- CN
- China
- Prior art keywords
- piezo
- circuit
- electric generating
- electric
- charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 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 claims description 3
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A kind of synchronous charge-extraction circuit of low latency self-powered piezo-electric generating, including bridge rectifier, peak detection circuit, low time delay bleeder circuit, confession electric switch circuit and charge-extraction circuit totally five component units, and they are sequentially connected electrically.The function of bridge rectifier is that the AC conversion for generating piezo-electric generating structure is direct current, the function of peak detection circuit is the maximum amplitude for detecting piezo-electric generating structural vibration displacement, the function of low time delay bleeder circuit is the delay time for reducing self-powered and closing the switch, the function of confession electric switch circuit is that closing or opening movement is realized without external control signal, and the function of charge-extraction circuit is that the electric energy that pickup piezo-electric generating structure generates is load supplying.The utility model can detect the wave crest and trough of piezo-electric generating structural vibration displacement simultaneously, simplify circuit structure；Required closing or opening function is realized in the case where not needing external control signal, reduces switching power loss；The time delay for greatly reducing confession electric switch circuit, improves the circuit to the AC-DC transfer efficiency of piezo-electric generating.
Description
Technical field
The utility model relates to vibrate field of piezoelectric generation, a kind of low latency self-powered piezo-electric generating is especially provided and synchronizes electricity
Lotus extracts circuit.
Background technique
In many environmental energy forms, vibration it may be said that generally existing in nature, such as automobile by ground and
Machine vibration the etc. when vibration that is generated when bridge, wave motion, industrial equipment work, and unlike solar energy, electromagnetic energy that
Sample is limited by using the several factors such as time, Service Environment.Therefore, vibration energy harvesting be study at present it is most commonly used
A kind of confession power technology.Compared with other vibrational energy switching mechanisms such as electromagnetic type, electrostatic, piezoelectric type switching mechanism because have compared with
High piezoelectric media effect and energy density without electromagnetic interference and are easy to outstanding advantages of microminiaturization is integrated, therefore vibrate pressure
Electricity power generation is very suitable for providing electric energy for low power dissipation electron equipment.
What piezo-electric generating exported is the alternating current of big voltage, high impedance, low current, cannot directly be low power dissipation electron equipment
Load supplying, it is necessary to by AC conversion be direct current (AC-DC conversion), this just need piezoelectric generating device and electric loading it
Between place interface circuit；Particularly, in AC-DC conversion process, transfer efficiency is closely related with interface circuit.Conventional bridge
Rectification interface circuit realizes that AC-DC is converted in which although can be convenient, but the disadvantage is that it requires load impedance and piezoelectric generating device
Output impedance matching, to obtain maximum energy in proof load.And the output impedance of piezo-electric generating is very high, it is difficult to realize impedance
Matching.For the low problem of conventional bridge rectification interface circuit energy conversion efficiency, there has been proposed based on synchronous switch
Non-linear rectification interface circuit, i.e. SSHI circuit, its basic thought are to be added one in conventional bridge rectification interface circuit
Switch and inductance, when piezoelectric vibrator reaches peak swing, stored charge is most inside piezoelectric material, and switching moments are closed at this time
Make the parasitic capacitance of inductance and piezoelectric material form L-C oscillation circuit to extract stored charge, to substantially increase AC-
The transfer efficiency of DC.Different according to the position of switch, SSHI circuit is divided into two major classes again: one kind is after switch is placed on rectifier bridge
Face, referred to as synchronous charge-extraction circuit；Another kind of is that switch is placed on before rectifier bridge, referred to as simultaneous switching circuit, such as
A kind of broadband piezo-electric generating nonlinear interface circuit is disclosed in CN201520926035.8.With simultaneous switching circuit phase
Than synchronous charge-extraction circuit biggest advantage is that its AC-DC transfer efficiency is unrelated with load, and it is whole to efficiently solve conventional bridge
The resistance matching problem that stream interface circuit faces, thus get the attention.
For the synchronous charge-extraction circuit of piezo-electric generating, it is crucial that how to realize that low power consumption switch acts.So far
Until, there has been proposed several switching strategies, such as utilize external signal driving switch, mechanical switch.But external signal is driven
Flowing mode needs to consume electric energy, sometimes even over the electric energy that piezo-electric generating structure is collected, is very limited on practicability；
And mechanical switch will lead to that piezo-electric generating structure is more complicated, be unfavorable for the micromation of piezoelectric structure, but also will limit piezoelectricity
The vibration of electrification structure itself.
Utility model content
The purpose of this utility model is to provide a kind of synchronous charge-extraction circuit of low latency self-powered piezo-electric generating, this realities
The technical issues of with the novel low-power consumption self-powered and low switch time delay for mainly solving existing synchronous charge-extraction circuit switch.
The utility model provides a kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit, comprising: bridge rectifier
Circuit, the output end of external piezo-electric generating structure, for being direct current by the AC conversion of piezo-electric generating structure output；Peak value
Detection circuit, for detecting the maximum amplitude of piezo-electric generating structural vibration displacement；Low time delay bleeder circuit, for reducing self-powered
The delay time closed the switch；Electric switch circuit is confessed, for realizing switch motion in the case where being not necessarily to external control signal；
Charge-extraction circuit is load supplying for picking up the electric energy that the piezo-electric generating structure being stored on inductance L generates；Above-mentioned five
Built-up circuit is electrically connected in series.
Further, bridge rectifier includes four rectifier diodes that bridge-type is electrically connected each other, and rectifier diode is
Schottky diode of the conduction voltage drop less than 0.7 volt.When practical application, the external piezoelectricity of 1-2 input ports of bridge rectifier
The output end of electrification structure, input voltage VinEqual to the voltage at piezo-electric generating structure both ends.
Further, peak detection circuit includes the resistance R being one another in series1, inductance C1With diode D5, for detecting pressure
At the time of electric electrification structure vibration displacement reaches maximum value, it both can detecte the wave crest of piezo-electric generating structural vibration displacement,
It can detecte the trough of piezo-electric generating structural vibration displacement.Ideally, when piezo-electric generating structural vibration displacement reaches maximum
When value, triode T1Meeting transient switching, so that switching transistor T2Conducting, to confess that electric switch circuit is closed.
Further, low time delay bleeder circuit includes the resistance R being one another in series2With diode D8, in which: diode D8's
Cathode and triode T1Base stage be connected.Due to diode D5There are pressure drop and triode T1There are conducting voltages, therefore
Under actual conditions, after piezo-electric generating structural vibration displacement reaches maximum value, triode T1It will not be connected immediately, then switch three
Pole pipe T2It will not be connected immediately, so that closing the switch, there are a time delays, by using resistance R2With diode D8It constitutes
Bleeder circuit can reduce the time delay.
Further, confession electric switch circuit is by diode D6、D7With triode T1、T2Composition, in which: diode D6Just
Pole and triode T1Collector be connected, diode D6Cathode and triode T2Base stage be connected；Diode D7Anode
With diode D8Anode be connected, diode D7Cathode and triode T2Collector be connected；Triode T1Collector
With capacitor C1One end be connected.
Further, charge-extraction circuit is by inductance L, capacitor C2With diode D9Composition, in which: capacitor C2One end with
Diode D9Cathode be connected, the other end is connected with inductance capacitance L；Diode D9Anode be connected with inductance L.Charge
3-4 ports for extracting circuit are the output end of the utility model, output voltage Vout, outer connected load when practical application.
Further, it confesses that electric energy used in electric switch circuit is generated by piezo-electric generating, provides electric energy without external.
Further, piezo-electric generating structure is made of piezoelectric material and elastic matrix, and piezoelectric material is lead zirconate titanate piezoelectric
Material or anti-static polyvinylidene fluoride piezoelectric material；The piezo-electric generating structure can have any shape.
The advantages of the utility model:
The peak detection electricity that the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating provided by the utility model uses
Road can detect the wave crest and trough of piezo-electric generating structural vibration displacement simultaneously, simplify circuit structure；The confession electric switch of use
Circuit realizes required closing or opening function in the case where not needing external control signal, reduces switching power loss；It is logical
It crosses and increases the time delay that bleeder circuit greatly reduces confession electric switch circuit, improve the circuit and the AC-DC of piezo-electric generating is turned
Change efficiency；The AC-DC transfer efficiency of the circuit is unrelated with load, without carrying out impedance matching.
Detailed description of the invention
The utility model is explained in greater detail with reference to the drawings, in which:
Fig. 1 is the synchronous charge-extraction electrical block diagram of low latency self-powered piezo-electric generating of the utility model；
Fig. 2 is the utility model piezo-electric generating structure schematic equivalent circuit；
Fig. 3 is actual measurement VrectVoltage waveform；
Fig. 4 is actual measurement VoutVoltage waveform.
Specific embodiment
The utility model provides a kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit, comprising: bridge rectifier
Circuit, the output end of external piezo-electric generating structure, for being direct current by the AC conversion of piezo-electric generating structure output；Peak value
Detection circuit, for detecting the maximum amplitude of piezo-electric generating structural vibration displacement；Low time delay bleeder circuit, for reducing self-powered
The delay time closed the switch；It confesses electric switch circuit, is used to realize closure or disconnected in the case where being not necessarily to external control signal
Start work；Charge-extraction circuit is load supplying for picking up the electric energy that the piezo-electric generating structure being stored on inductance L generates；
Above-mentioned five built-up circuits are electrically connected in series.
The delay time that confession electric switch circuit closure is greatly reduced by increasing low time delay bleeder circuit, to improve
AC-DC transfer efficiency of the circuit to piezo-electric generating.
Specifically as shown in Figure 1, including bridge rectifier, peak detection circuit, low time delay bleeder circuit, confessing and establish by cable
Powered-down road and charge-extraction circuit totally five component parts, and they are sequentially connected electrically.
The function of bridge rectifier is used to the AC conversion of piezo-electric generating structure output be direct current, and the bridge-type is whole
Current circuit may be other common bridge rectifier structures.Preferably, including four rectifications that bridge-type is electrically connected each other
Diode D1、D2、D3、D4.When practical application, the input port 1-2 of bridge rectifier and the output end of piezo-electric generating structure
It is connected.Rectifier diode D1、D2、D3、D4It can be conduction voltage drop VDLesser Schottky diode.Preferred conduction voltage drop is less than
0.7 volt, it can reduce the electric energy loss as caused by diode conduction voltage drop at this time.
The function of peak detection circuit is the maximum amplitude for detecting piezo-electric generating structural vibration displacement.Preferably, peak
It is worth detection circuit by resistance R1, capacitor C1With diode D5Composition, in which: resistance R1One end and diode D5Anode is connected,
The other end is connected with one end of bridge rectifier output end, diode D5Cathode and capacitor C1It is connected, capacitor C1It is another
One end respectively with the other end at bridge rectifier end, triode T1Emitter be connected.
The function of low time delay bleeder circuit is the decay time closed the switch for reducing self-powered.Preferably, low time delay
Bleeder circuit is by resistance R2With diode D8Composition, in which: diode D8Anode and bridge rectifier output end one end phase
Connection, cathode respectively with triode T1Base stage, resistance R2One end be connected.Resistance R2The other end and bridge rectifier
The other end of output end is connected.
The function of confession electric switch circuit is for realizing that closing or opening is dynamic without external control signal
Make.Preferably, confession electric switch circuit is by diode D6、D7With triode T1、T2Composition, in which: diode D6Anode with three
Pole pipe T1Collector be connected, diode D6Cathode and triode T2Base stage be connected；Diode D7Anode with two poles
Pipe D8Anode be connected, diode D7Cathode and triode T2Collector be connected；Triode T1Collector and capacitor
C1One end be connected.
The function of charge-extraction circuit is that the electric energy for picking up the generation of piezo-electric generating structure is load supplying.Preferably,
Charge-extraction circuit is by inductance L, capacitor C2With diode D9Composition, in which: capacitor C2One end and diode D9Cathode be connected
It connects, the other end is connected with inductance capacitance L；Diode D9Anode be connected with inductance L.3-4 ports of charge-extraction circuit
For the output end of the utility model, output voltage Vout, outer connected load when practical application.
Piezo-electric generating structure is made of piezoelectric material and elastic matrix；Piezoelectric material is lead zirconate titanate piezoelectric material, piezoelectricity
Composite material or anti-static polyvinylidene fluoride piezoelectric material；Piezo-electric generating structure can have any shape.
It is as follows that above-mentioned low latency self-powered piezo-electric generating provided by the utility model synchronizes charge-extraction circuit operation principle:
For convenient for elaboration, it is assumed that vibration source is sinusoidal exiting form, and piezo-electric generating structure can be equivalent to by ieq、CpIt constitutes
Current source, vibrate the equivalent circuit diagram of piezoelectric power generation system at this time as shown in Fig. 2, by taking a vibration period as an example, Ke Yifen
It is illustrated at positive half period and negative half-cycle.In positive half period, piezo-electric generating structural vibration displacement increases from equilbrium position
Return equilbrium position to peak value, 1) confession electric switch most times in positive half period are to disconnect, in such case
Lower piezoelectric electrification structure output end is opened a way always, and the charge generated when its vibration displacement is from equilbrium position to peak change is continuous
It is accumulated at electrode both ends, so that open-circuit voltage also constantly increases, bridge rectifier conducting, capacitor C1Both end voltage also constantly increases
Add；When piezo-electric generating structural vibration displacement reaches peak value, bridge rectifier output voltage VrecAlso reach maximum.2) once
When piezo-electric generating structural vibration is moved from peak value to equilbrium position, confesses that electric switch circuit is of short duration after a time delay and close
It closes, so that inductance L and parasitic capacitance CpForm L-CpOscillation circuit stores all electric energy moments of accumulation into inductance L.3)
It is disconnected again after the confession of short duration closure of electric switch circuit, inductance L is by whole electric energy transfers of storage to output capacitance C at this time2
On, it can be load supplying.In negative half-cycle, piezo-electric generating structural vibration displacement, which is reduced to from equilbrium position to peak valley, to be returned
Equilbrium position, the course of work is similar with positive half period, and the above process can be repeated cyclically.It was closed the switch in above-mentioned self-powered
Cheng Zhong, divider resistance R2Reduce triode T1The voltage of base stage provides this to reduce the time delay closed the switch
The AC-DC transfer efficiency of circuit.
The peak detection circuit energy that vibration piezo-electric generating has the following beneficial effects: use is applied to using the utility model
The wave crest and trough for detecting piezo-electric generating structural vibration displacement simultaneously, simplify circuit structure；The confession electric switch circuit of use,
Required closing or opening function is realized in the case where not needing external control signal, reduces switching power loss；Pass through increasing
Bonus point volt circuit greatly reduces the time delay of confession electric switch circuit, improves the circuit to the AC-DC conversion effect of piezo-electric generating
Rate；The AC-DC transfer efficiency of the circuit is unrelated with load, without carrying out impedance matching.
Specifically used explanation: the synchronous charge-extraction circuit such as Fig. 1 institute of the low latency self-powered piezo-electric generating of the utility model
Show, wherein C1=2nF, R1=400k Ω, R2=1M Ω, L=50mH, C2=100 μ F, D1~D9Using the Xiao Te of low conduction voltage drop
Based diode (VD=0.6 volt), T1,T2Using the triode of low conducting voltage, (low conducting voltage herein refers to conducting voltage <
1.0 volts)；Piezoelectric material uses piezoelectric ceramics PZT-5H piece, and basis material is aluminium；Piezo-electric generating planform is rectangle, practical
Measure its equivalent capacity Cp=62nF.Finally respectively to the bridge rectifier output voltage before and after increase low time delay bleeder circuit
VrectWith entire circuit output voltage VoutCarry out experiment test, the bridge rectifier output voltage V of acquisitionrectWaveform such as Fig. 3
It is shown, it is seen that increase V after low time delay bleeder circuitrectWhen the time inverted from positive value to negative value is than no low time delay bleeder circuit
Shift to an earlier date, the time delay that this explanation closes the switch is smaller.The entire circuit output voltage V obtainedoutWaveform is as shown in figure 4, can
To find out in the same time, increase V after low time delay bleeder circuitoutBig when than no low time delay bleeder circuit, this illustrates this
The output electric energy of real utility model circuit is apparently higher than circuit in the prior art, illustrates that circuit provided by the utility model can have
The electric energy conversion ratio of the raising piezo-electric generating of effect.
Those skilled in the art will be clear that the scope of the utility model is not limited to example discussed above, it is possible to it
Several changes and modification are carried out, the scope of the utility model limited without departing from the appended claims.Although oneself is through attached
The utility model is illustrated and described in detail in figure and specification, but such illustrate and describe is only explanation or schematical,
And not restrictive.The utility model is not limited to the disclosed embodiments.
By to attached drawing, the research of specification and claims, those skilled in the art when implementing the utility model
It is understood that and realizes the deformation of the disclosed embodiments.In detail in the claims, term " includes " be not excluded for other steps or
Element, and indefinite article "one" or "an" be not excluded for it is multiple.That quotes in mutually different dependent claims is certain
The fact that measure, does not mean that the combination of these measures cannot be advantageously used.Any reference marker in claims is not
Constitute the limitation to the scope of the utility model.
Claims (8)
1. a kind of synchronous charge-extraction circuit of low latency self-powered piezo-electric generating characterized by comprising
Bridge rectifier, the AC conversion for generating piezo-electric generating structure are direct current；
Peak detection circuit, for detecting the maximum amplitude of piezo-electric generating structural vibration displacement；
Low time delay bleeder circuit, the delay time closed the switch for reducing self-powered；
Electric switch circuit is confessed, for realizing closing or opening movement in the case where being not necessarily to external control signal；
Charge-extraction circuit, the electric energy for picking up the generation of piezo-electric generating structure are load supplying；
The bridge rectifier, peak detection circuit, low time delay bleeder circuit, confession electric switch circuit and charge-extraction circuit
Built-up circuit is electrically connected in series.
2. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that described
Low time delay bleeder circuit is located between peak detection circuit and confession electric switch circuit.
3. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that described
Peak detection circuit includes concatenated resistance R1, diode D5And C1, for detect piezo-electric generating structural vibration displacement wave crest and
Detect the trough of piezo-electric generating structural vibration displacement.
4. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that described
Low time delay bleeder circuit includes concatenated resistance R2With diode D8, the diode D8Cathode and triode T1Base stage phase
Connection.
5. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that described
Confess electric switch circuit by diode D6、D7With triode T1、T2Composition；The diode D6Anode with triode T1Current collection
Pole is connected, cathode and triode T2Base stage be connected；The diode D7Anode with diode D8Anode be connected,
Cathode and triode T2Collector be connected；The triode T1Collector and capacitor C1One end be connected.
6. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that confession
Electric energy used in electric switch circuit is provided by piezo-electric generating.
7. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that confession
Electric switch circuit is only just closed when piezo-electric generating structural vibration is displaced and reaches maximum amplitude, and other moment are all in disconnection shape
State.
8. the synchronous charge-extraction circuit of low latency self-powered piezo-electric generating according to claim 1, which is characterized in that described
Piezo-electric generating structure is made of piezoelectric material and elastic matrix, and the piezoelectric material is lead zirconate titanate piezoelectric material, Piezoelectric anisotropy
Material or anti-static polyvinylidene fluoride piezoelectric material；The piezo-electric generating structure can have any shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238933.4U CN208638271U (en) | 2018-08-02 | 2018-08-02 | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238933.4U CN208638271U (en) | 2018-08-02 | 2018-08-02 | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208638271U true CN208638271U (en) | 2019-03-22 |
Family
ID=65741205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821238933.4U Expired - Fee Related CN208638271U (en) | 2018-08-02 | 2018-08-02 | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208638271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004862A (en) * | 2018-08-02 | 2018-12-14 | 湖南工业大学 | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit |
| CN111740485A (en) * | 2020-07-06 | 2020-10-02 | 电子科技大学 | Pulse type micro-energy power supply management circuit based on passive peak detection |
-
2018
- 2018-08-02 CN CN201821238933.4U patent/CN208638271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109004862A (en) * | 2018-08-02 | 2018-12-14 | 湖南工业大学 | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit |
| CN111740485A (en) * | 2020-07-06 | 2020-10-02 | 电子科技大学 | Pulse type micro-energy power supply management circuit based on passive peak detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dicken et al. | Power-extraction circuits for piezoelectric energy harvesters in miniature and low-power applications | |
| WO2018205994A1 (en) | Power supply management module, management method and energy system for triboelectric nanogenerator | |
| Cheng et al. | A voltage-multiplying self-powered AC/DC converter with 0.35-V minimum input voltage for energy harvesting applications | |
| CN208638271U (en) | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit | |
| CN103607138A (en) | Self-powered type nonlinear piezoelectric vibration energy extraction circuit | |
| Li et al. | Constructing high output performance triboelectric nanogenerator via V-shape stack and self-charge excitation | |
| CN102684549B (en) | Adaptive active piezoelectric energy acquisition device | |
| CN111740485B (en) | Pulse type micro-energy power supply management circuit based on passive peak detection | |
| Wu et al. | A self-powered multi-input bridgeless series-SSHI circuit for piezoelectric energy harvesting | |
| CN104767376B (en) | The transformation of nano generator becomes charged road and method | |
| CN203775080U (en) | Self-powered piezoelectric vibration acquisition circuit | |
| Wang et al. | A clockless synergistic hybrid energy harvesting technique with simultaneous energy injection and sampling for piezoelectric and photovoltaic energy | |
| CN112332706A (en) | Active synchronous charge extraction circuit for piezoelectric vibration energy collection | |
| CN109004862A (en) | A kind of low latency self-powered piezo-electric generating synchronization charge-extraction circuit | |
| CN108365774B (en) | A kind of novel vibrating energy acquisition circuit | |
| Ammar et al. | AC-DC Single Phase Rectifiers for Nanocomposite based Flexible Piezoelectric Energy Harvesters | |
| Asis Arul et al. | Efficiency evaluation of a MOSFET bridge rectifier for powering LEDs using piezo-electric energy harvesting systems | |
| CN109787334A (en) | A kind of nonlinear Control managing device of piezoelectric energy acquisition | |
| CN105262352A (en) | Nonlinear interface circuit for wide band piezoelectric generation and direct current voltage control method for nonlinear interface circuit | |
| CN205249069U (en) | Non -linear interface circuit is used in electricity generation of broadband piezoelectricity | |
| CN108809104A (en) | A kind of two-way resonance converter and its control method of synchronous rectification | |
| CN212572423U (en) | Expandable energy capture interface circuit based on overturning voltage-multiplying charge extraction | |
| CN105490564B (en) | A kind of piezoelectric energy collection rectifier for optimizing flip-flop transition | |
| Zhu et al. | A new synchronized switching harvesting scheme employing current doubler rectifier | |
| CN112039368A (en) | Expandable energy capture interface circuit based on overturning voltage-multiplying charge extraction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |