CN106941326B - It is a kind of for trigger bistable state energy collecting system from perception exciting circuit - Google Patents
It is a kind of for trigger bistable state energy collecting system from perception exciting circuit Download PDFInfo
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- CN106941326B CN106941326B CN201611147919.9A CN201611147919A CN106941326B CN 106941326 B CN106941326 B CN 106941326B CN 201611147919 A CN201611147919 A CN 201611147919A CN 106941326 B CN106941326 B CN 106941326B
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- 230000008447 perception Effects 0.000 title claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 13
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/181—Circuits; Control arrangements or methods
Abstract
The invention discloses a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system high-energy tracks, including from aware circuit, automatic shutdown circuit and switch amplifying circuit, it is described to be connected from aware circuit and automatic shutdown circuit with switch amplifying circuit, it is described to be used to be connected with bistable state energy collecting system from aware circuit, automatic shutdown circuit and switch amplifying circuit;This is a kind of for triggering the extremely low from perception exciting circuit energy consumption of bistable state energy collecting system high-energy tracks, does not depend on any ancillary equipment.
Description
Technical field
The invention belongs to field of circuit technology, and in particular to a kind of for triggering perceiving certainly for bistable state energy collecting system
Exciting circuit.
Background technique
In recent years, the contradiction between the growth and energy shortage of energy demand becomes increasingly conspicuous, and people gradually change in the visual field
To the searching to new energy.Meanwhile with the development of science and technology, wireless sensor network, microelectronics system and portable electronic are set
The increasingly developed maturation of technologies such as standby, gradually develops towards micromation, low-power consumption direction, and these applications require electric energy supply,
Traditional method is using battery power supply or wired power supply.It is well known that the service life of battery is limited, and replace not side
Just;And wired power supply technique then needs subordinate line, engineering is complicated, higher cost, and needs continual maintenance and maintenance.To overcome
The drawbacks of old energy, makes full use of new energy technology to realize that the supply of electric energy just seems especially significant.
With the progress of low-power consumption large scale integrated circuit (LSIC) technology and advanced power management techniques, so that micro-
The power of type sensor and low power consumption digital signal processor (DSP) can be controlled in lmW hereinafter, what so low power consumption made
Collecting the energy in ambient enviroment is that microsensor or other electronic devices are powered (i.e. self energizing technology) and are possibly realized,
It is that wireless sensor network carries out energy supply using environmental energy acquisition technique, has been increasingly becoming the forward position class studied before a project
Topic.Vibrational energy as a kind of form of energy being widely present in nature, how effectively to acquire and utilize vibrational energy at
For research hotspot.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of energy consumption pole
It is low, do not depend on the perception exciting circuit certainly for being used to trigger bistable state energy collecting system of any ancillary equipment.
In order to solve the above technical problems, the technical solution adopted by the present invention is that, one kind is for triggering bistable state energy acquisition
The perception exciting circuit certainly of system, including from aware circuit, automatic shutdown circuit and switch amplifying circuit, it is described from aware circuit
It is connected with switch amplifying circuit with automatic shutdown circuit, it is described from aware circuit, automatic shutdown circuit and switch amplification electricity
Road is used to be connected with bistable state energy collecting system.
This, for switching drive signal needed for generating switch amplifying circuit, is also used to collect bistable state energy from aware circuit
The energy generated in quantity collection system vibration processes;The automatic shutdown circuit is used for: when bistable state energy collecting system operates in
When low energy track, which makes this from the conducting of perception exciting circuit and automatically exciting;When bistable state energy acquisition
When system operates in higher energy orbital, the automatic shutdown circuit makes this disconnect from perception exciting circuit and stop motivating.
Further, should from aware circuit include be sequentially connected the extreme value electronic switching circuit connect, energy storage circuit and
Rectification circuit, the extreme value electronic switching circuit includes the maximum electronic switch and minimum electronic switch being connected, described
The input terminal of maximum electronic switch for being connected with the first piezoelectric element, the output end of the minimum electronic switch with it is whole
Current circuit is connected;
The maximum electronic switch includes first diode, first capacitor, the first triode and third transistor, and the one or two
The anode of pole pipe is used to be connected to point a, the cathode of the first diode by one end of first resistor and the first piezoelectric element
For being connected to point b by the other end of first capacitor and the first piezoelectric element;The cathode of first diode also with the one or three pole
The emitter of pipe is connected, and the base stage of the first triode is connect with point a, the collector of the first triode and the sun of third diode
Pole is connected, and the cathode of third diode is connected with the base stage of third transistor, the collector of third transistor and the five or two
The cathode of pole pipe is connected, and the anode of the 5th diode is connect with point a;The yin of the emitter of third transistor and the 7th diode
Pole is connected to point c;The anode of 7th diode is connected with the input terminal of inductance, is connected to point b with the output end of inductance;Point c
Load resistance is connected between point d.
The minimum electronic switch includes the 6th diode, the 4th triode, third diode, the second triode, second
Diode and the 8th diode;The cathode of 6th diode is connect with point a;The anode of 6th diode and the collection of the 4th triode
Electrode is connected;The emitter of 4th triode and the anode of the 8th diode are connected to point d, the cathode of the 8th diode with
The input terminal of inductance is connected;The base stage of 4th triode is connected with the anode of third diode, the cathode of third diode
It is connected with the collector of the second triode, the base stage of the second triode is connect with point a;The emitter of second triode and second
The anode of diode is connected to point e, and the cathode of the second diode is connected with one end of second resistance, the other end of second resistance
It is connected to point a;Point e is connected with the input terminal of the second capacitor, and the output end of the second capacitor is connect with point b.
The accumulator includes storage capacitor, and the anode of storage capacitor is connected to point c, and the cathode of storage capacitor is connected to a little
Load resistance is connected between d, point c and point d;
The rectification circuit includes the 9th diode and the tenth diode, and the cathode of the 9th diode is connect with point a, and the 9th 2
The anode of pole pipe is connected with switch amplifying circuit;The anode of tenth diode is connect with point b, the cathode of the tenth diode with open
Amplifying circuit is closed to be connected.
Further, the switch amplifying circuit include be connected let out electrical circuit and booster circuit, letting out electrical circuit includes the
One mos pipe, is parallel with the 7th resistance, the grid of the first mos pipe and the sun of the 9th diode between the grid and source electrode of the first mos pipe
Pole is connected, and the source electrode of the first mos pipe is connected with the cathode of the tenth diode;The source electrode of first mos pipe is also used to and second
Piezoelectric element is connected, and the grid of the first mos pipe is connected with the anode of booster circuit, and the cathode of booster circuit is used for and second
Piezoelectric element is connected.
Further, which includes that the standard being connected adopts energy circuit and two cascade mos pipes, described
Standard adopts the input terminal of energy circuit for being connected with third piezoelectric element;Described two cascade mos pipes include that the 2nd mos is managed
Managed with the 3rd mos, the drain electrode of the 2nd mos pipe is connected with the grid of the 3rd mos pipe, the drain electrode of the 3rd mos pipe and
The anode of booster circuit is connected;The source electrode of the 3rd mos pipe is connect with f point;The source electrode and f point of the 2nd mos pipe connect
It connects;The grid of the 2nd mos pipe is connected with one end of the 6th resistance, the one end of one end of the 6th resistance also with the 5th resistance
It is connected, the other end and standard of the 5th resistance adopt energy circuit connection and be connected in point g, point g with one end of 3rd resistor, third
The other end of resistance is connected with the 4th resistance, and the other end of the 4th resistance is connected to point f, and point f adopts energy circuit with standard and is connected
It connects.
Further, it includes two groups of diode groups being connected in parallel that this, which is stated standard and adopts energy circuit, after being connected in parallel, connection
Point is connect with point g and point f respectively, is also parallel with third capacitor between point g and point f.
Further, which includes the 11st diode, the 12nd diode, the 13rd diode and the
14 diodes, the cathode of the 12nd diode and the anode of the 11st diode are connected to point h, the cathode of the 11st diode
It is connected to point g with the cathode of the 14th diode, the anode of the 14th diode and the cathode of the 13rd diode are connected to a little
I, the anode of the 13rd diode and the anode of the 12nd diode are connected to point f;Point h is for one end with third piezoelectric element
It is connected, point i with the other end of third piezoelectric element for being connected.
Further, which is magnetic-type cantilever beam electricity energy harvester, and the root of cantilever beam is logical
Cross corresponding first piezoelectric element and the second piezoelectric element be connected with from aware circuit and automatic shutdown circuit, cantilever beam from
It is connected by third piezoelectric element with switch amplifying circuit by end;The free end of cantilever beam is additionally provided with the 4th piezoelectric element,
4th piezoelectric element is used to reflect by the voltage of its generation the power of bistable system vibration.
The invention also discloses above-mentioned a kind of for triggering the work from perception exciting circuit of bistable state energy collecting system
Make method, the working method is as follows: generating switching drive signal needed for switching amplifying circuit, switch amplification electricity from aware circuit
Road receives the switching drive signal, and driving voltage signal, promotes bistable system to run needed for providing the second piezoelectric element
In higher energy orbital;The energy generated in bistable system vibration processes is collected from aware circuit simultaneously;When bistable system is transported
Row is in higher energy orbital, automatic shutdown circuit;It is automatic to be connected when bistable system operates in higher energy orbital.
A kind of exciting circuit of perception certainly for triggering bistable state energy collecting system of the present invention has the advantages that (1)
Energy consumption is extremely low, does not depend on any ancillary equipment.(2) electricity is automatically cut off after higher energy orbital using automatic shutdown circuit
Road, it is automatic to be connected in low energy track, save the energy consumption of system.
Detailed description of the invention
Fig. 1 is that a kind of system structure from perception exciting circuit for triggering bistable state energy collecting system of the present invention is shown
It is intended to;
Fig. 2 is that the present invention is a kind of for triggering the structural representation from perception exciting circuit of bistable state energy collecting system
Figure;
Fig. 3 is the structural schematic diagram in the present invention from aware circuit;
Fig. 4 is the structural schematic diagram that amplifying circuit is switched in the present invention;
Fig. 5 is the structural schematic diagram of automatic shutdown circuit in the present invention;
The switching drive signal and bistable system cantilever beam displacement relation figure that Fig. 6 is generated from aware circuit;
Fig. 7 pumping signal experimental waveform figure;
Bistable system output voltage waveform in Fig. 8 excitation course;
The voltage oscillogram in booster circuit is loaded in Fig. 9 excitation course;
Capacitor Crect both end voltage waveform diagram in Figure 10 excitation course.
Specific embodiment
The present invention is a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system, as depicted in figs. 1 and 2,
Including from aware circuit 1, automatic shutdown circuit 2 and switch amplifying circuit 3, from aware circuit 1 and automatic shutdown circuit 2 with open
It closes amplifying circuit 3 to be connected, be used to and bistable state energy from aware circuit 1, automatic shutdown circuit 2 and switch amplifying circuit 3
Acquisition system is connected.
This, for switching drive signal needed for generating switch amplifying circuit 3, is also used to collect bistable state from aware circuit 1
The energy generated in energy collecting system vibration processes.
The automatic shutdown circuit 2 is used for: when bistable state energy collecting system operates in low energy track, automatically cutting off electricity
Road 2 makes this from the conducting of perception exciting circuit and automatically exciting;When bistable state energy collecting system operates in higher energy orbital, from
Dynamic cutting circuit 2 makes this disconnect from perception exciting circuit and stop motivating.
As shown in figure 3, including being sequentially connected the extreme value electronic switching circuit 1-1 connect, energy storage circuit from aware circuit 1
1-2 and rectification circuit 1-3, extreme value electronic switching circuit 1-1 include the maximum electronic switch 1-11 being connected and minimum electricity
The input terminal of sub switch 1-12, maximum electronic switch 1-11 with the first piezoelectric element 4 for being connected, minimum electronic switch
The output end of 1-12 is connected with rectification circuit 1-3.
Maximum electronic switch 1-11 includes first diode D1, first capacitor C1, the first triode Q1 and the three or three
The anode of pole pipe Q3, first diode D1 are used to be connected to point a by one end of first resistor R1 and the first piezoelectric element 4, the
The cathode of one diode D1 is used to be connected to point b by the other end of first capacitor C1 and the first piezoelectric element 4;First diode
The cathode of D1 is also connected with the emitter of the first triode Q1, and the base stage of the first triode Q1 is connect with point a, the first triode
The collector of Q1 is connected with the anode of third diode D4, the base stage phase of the cathode and third transistor Q3 of third diode D4
Connection, the collector of third transistor Q3 are connected with the cathode of the 5th diode D5, and the anode and point a of the 5th diode D5 connects
It connects;The cathode of the emitter of third transistor Q3 and the 7th diode D7 are connected to point c;The anode and inductance of 7th diode D7
The input terminal of L is connected, and is connected to point b with the output end of inductance L;Load resistance Rload is connected between point c and point d.
The minimum electronic switch 1-12 includes the 6th diode D6, the 4th triode Q4, the 4th diode D4, the two or three
Pole pipe Q2, the second diode D2 and the 8th diode D8;The cathode of 6th diode D6 is connect with point a;6th diode D6's
Anode is connected with the collector of the 4th triode Q4;The emitter of 4th triode Q4 is connected with the anode of the 8th diode D8
It is connected to point d, the cathode of the 8th diode D8 is connected with the input terminal of inductance L;The base stage of 4th triode Q4 and the four or two pole
The anode of pipe D4 is connected, and the cathode of the 4th diode D4 is connected with the collector of the second triode Q2, the second triode Q2
Base stage connect with point a;The anode of the emitter of second triode Q2 and the second diode D2 are connected to point e, the second diode
The cathode of D2 is connected with one end of second resistance R2, and the other end of second resistance R2 is connected to point a;Point e and the second capacitor C2
Input terminal be connected, the output end of the second capacitor C2 is connect with point b.
Accumulator 1-4 includes storage capacitor Crect, and the anode of storage capacitor Crect is connected to point c, storage capacitor
The cathode of Crect is connected to point d, is connected with load resistance Rload between point c and point d.Rectification circuit 1-3 includes the 9th 2 pole
The cathode of pipe D9 and the tenth diode D10, the 9th diode D9 are connect with point a, and the anode and switch of the 9th diode D9 amplifies
Circuit 3 is connected;The anode of tenth diode D10 is connect with point b, cathode and switch 3 phase of amplifying circuit of the tenth diode D10
Connection.
First piezoelectric element 4 includes resistance Rs, Charge Source and capacitor C in parallel0.From in aware circuit with first
The voltage V at 4 both ends of piezoelectric element1Increase, forward current starts to capacitor C0, first capacitor C1, the second capacitor C2Start to fill
Electricity, thus voltage V1、VC1、VC2It is continuously increased.When the voltage at 4 both ends of the first piezoelectric element reaches maximum value V0When, VC1Voltage
For V0-Vd, VdFor the conducting voltage of first diode D1.When the voltage at 4 both ends of the first piezoelectric patches has dropped Vd+VbeWhen VbeFor NPN
The conducting voltage of the first triode of type Q1, the first triode Q1 conducting, first capacitor C1Along the first triode Q1(be), third
Diode D3, the second triode Q2(ce), storage capacitor Crect, the 8th diode D8, inductance L electric discharge, eventually lead to the three or three pole
Pipe Q3 conducting, thus capacitor C0, the 5th diode D5, third transistor Q3(ce), storage capacitor Crect, the 8th diode D8, electricity
Feel L and constitute circuit, the charge being stored in the first piezoelectric element 4 is sufficiently discharged by L-C resonance.The above are from aware circuit pole
Big value detection process, minimum detection process is consistent with maximum detection process, and the direction of only transistor is reversed.
As shown in figure 4, the switch amplifying circuit 3 lets out electrical circuit 3-1 and booster circuit 3-2 including what is be connected, this lets out electricity
Circuit 3-1 includes the first mos pipe T1, is parallel with the 7th resistance Rd between the grid and source electrode of the first mos pipe T1, and described first
The grid of mos pipe T1 is connected with the anode of the 9th diode D9, the source electrode and the tenth diode D10 of the first mos pipe T1
Cathode be connected;The source electrode of the first mos pipe T1 is also used to be connected with the second piezoelectric element 5, the first mos pipe T1
Grid be connected with the anode of booster circuit 3-2, the cathode of the booster circuit 3-2 with the second piezoelectric element 5 for being connected
It connects.First mos pipe T1 works under the control of switching drive signal, and booster circuit 2-2 is by 5V voltage amplification to 105V, when
One mos pipe T1 will provide the driving voltage of 105V when being connected for the second piezoelectric element 5.
As shown in figure 5, automatic shutdown circuit 2 includes that the standard being connected adopts energy circuit 2-1 and two cascade mos pipe 2-
2, the standard adopts the input terminal of energy circuit 2-1 for being connected with third piezoelectric element 6;Described two cascade mos pipe 2-2
Including the 2nd mos pipe T2 and the 3rd mos pipe T3, the drain electrode of the 2nd mos pipe T2 is connected with the grid of the 3rd mos pipe T3,
The drain electrode of the 3rd mos pipe T3 is connected with the anode of booster circuit 3-2;The source electrode and f point of the 3rd mos pipe T3 connects
It connects;The source electrode of the 2nd mos pipe T2 is connect with f point;The grid of the 2nd mos pipe T2 is connected with one end of the 6th resistance R6
It connects, one end of the 6th resistance R6 is also connected with one end of the 5th resistance R5, the other end and mark of the 5th resistance R5
Standard adopts energy circuit 2-1 and is connected to point g, and point g is connected with one end of 3rd resistor R3, the other end of 3rd resistor R3 and the 4th electricity
Resistance R4 is connected, and the other end of the 4th resistance R4 is connected to point f, and point f adopts energy circuit 2-1 with standard and is connected.
The standard, which adopts energy circuit 2-1 circuit, can be changed into direct current for the ac voltage signal that third piezoelectric element 6 generates
Voltage.When bistable system work is in low energy track, by dividing so that VAB> Vg2s2, VCD< Vg3s3Vg2s2, Vg3s3It is
Two mos pipe T2, the 3rd mos pipe T3 conduction voltage drop, the 3rd mos pipe T3 is connected at this time, and the 2nd mos pipe T2 is closed, the 3rd mos pipe T3
Conducting is so that power supply is booster circuit 2-2 power supply, exciting circuit work;When bistable system is in higher energy orbital, VCD>
Vg3s3, the 2nd mos pipe T2 is connected at this time, and the conducting of the 2nd mos pipe T2 is so that VAB=0, thus the 3rd mos pipe T3 will be closed,
Exciting circuit and power supply disconnect, and exciting circuit stops working.Automatic shutdown circuit can make exciting circuit be in low in bistable state
Automatically exciting when energy levels disconnects automatically when in higher energy orbital.
The standard adopt can circuit 2-1 include two groups of diode groups being connected in parallel, after being connected in parallel, tie point respectively with
Point g is connected with point f, and third capacitor C3 is also parallel between point g and point f.Two groups of diode groups include the 11st diode
D11, the 12nd diode D12, the 13rd diode D13 and the 14th diode D14, the yin of the 12nd diode D12
The anode of pole and the 11st diode D11 are connected to point h, the cathode and the 14th diode D14 of the 11st diode D11
Cathode be connected to point g, the anode of the 14th diode D14 and the cathode of the 13rd diode D13 are connected to point i, institute
The anode of the anode and the 12nd diode D12 of stating the 13rd diode D13 is connected to point f;Point h is used for and third piezoelectric element
6 one end is connected, and point i with the other end of third piezoelectric element 6 for being connected.
The bistable state energy collecting system is magnetic-type cantilever beam electricity energy harvester, and the root of cantilever beam passes through corresponding the
One piezoelectric element 4 and the second piezoelectric element 5 are connected with from aware circuit 1 and automatic shutdown circuit 2, and the free end of cantilever beam is logical
Third piezoelectric element 6 is crossed to be connected with switch amplifying circuit 3;The free end of cantilever beam is additionally provided with the 4th piezoelectric element 7, described
4th piezoelectric element 7 is used to reflect by the voltage of its generation the power of bistable system vibration.
A kind of above-mentioned working method from perception exciting circuit for triggering bistable state energy collecting system is as follows: should
Switching drive signal needed for switching amplifying circuit 3 is generated from aware circuit 1, switch amplifying circuit 3 receives switching drive signal,
Driving voltage signal needed for providing the second piezoelectric element 5, promotes bistable system to operate in higher energy orbital;Simultaneously from perception
Circuit 1 collects the energy generated in bistable system vibration processes;When bistable system operates in higher energy orbital, cut automatically
Deenergizing;When bistable system operates in higher energy orbital, the excited frequency that vibration excitor is chosen in automatic conducting is 9.5hz, is swashed
Encouraging acceleration is 2.8.
Fig. 6 show the switching drive signal and bistable system cantilever beam displacement relation figure generated from aware circuit,
Medium wave peak it is upper be from aware circuit generate switching drive signal, wave crest is that the first piezoelectric element 4 measures reaction under
The voltage signal of cantilever beam displacement.The switching drive signal will be used to driving switch amplifying circuit.
Fig. 7 is pumping signal experimental waveform figure;The excitation caused by switching drive signal control lower switch amplifying circuit
Signal can be by bistable system from low energy track excitation to high-energy rail after the pumping signal is loaded into the second piezoelectric element 5
Road.The voltage of the 4th piezoelectric element 7 is as shown in Figure 8 during entire excitation.As shown in Figure 9, bistable system is by being somebody's turn to do certainly
Perception exciting circuit is successfully realized by the energy jump of low energy track to higher energy orbital.
Automatic shutdown circuit can make exciting circuit work when bistable system is in low energy track, be in high-energy rail
It is automatically shut down when road.Fig. 9 is the voltage oscillogram loaded in excitation course in booster circuit, as seen from the figure when bistable system quilt
After being activated to higher energy orbital, autotomys and cut off circuit for booster circuit dump.Figure 10 is capacitor Crect two in excitation course
Voltage oscillogram is held, as seen from the figure by motivating capacitor both end voltage that can effectively improve.
Claims (8)
1. a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system, which is characterized in that including electric from perceiving
Road (1), automatic shutdown circuit (2) and switch amplifying circuit (3), it is described from aware circuit (1) and automatic shutdown circuit (2) with
Switch amplifying circuit (3) is connected, described to use from aware circuit (1), automatic shutdown circuit (2) and switch amplifying circuit (3)
It is connected in bistable state energy collecting system;
It is described from aware circuit (1) for generates switch amplifying circuit (3) needed for switching drive signal, be also used to collect bistable
The energy generated in state energy collecting system vibration processes;
The automatic shutdown circuit (2) is used for: described to cut automatically when bistable state energy collecting system operates in low energy track
Deenergizing (2) makes this from the conducting of perception exciting circuit and automatically exciting;When bistable state energy collecting system operates in high-energy rail
When road, the automatic shutdown circuit (2) makes this disconnect from perception exciting circuit and stop motivating.
2. it is described in accordance with the claim 1 a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system, it is special
Sign is, described from aware circuit (1) includes being sequentially connected extreme value electronic switching circuit (1-1), the energy storage circuit (1- connect
2) and rectification circuit (1-3), the extreme value electronic switching circuit (1-1) include the maximum electronic switch (1-11) being connected and
The input terminal of minimum electronic switch (1-12), the maximum electronic switch (1-11) is used for and the first piezoelectric element (4) phase
Connection, the output end of the minimum electronic switch (1-12) are connected with rectification circuit (1-3);
The maximum electronic switch (1-11) include first diode (D1), first capacitor (C1), the first triode (Q1) and
The anode of third transistor (Q3), the first diode (D1) is used for through first resistor (R1) and the first piezoelectric element (4)
One end be connected to point a, the cathode of the first diode (D1) is used for through first capacitor (C1) and the first piezoelectric element (4)
The other end be connected to point b;The cathode of the first diode (D1) is also connected with the emitter of the first triode (Q1), institute
The base stage for stating the first triode (Q1) is connect with point a, collector and third diode (D3) of first triode (Q1)
Anode is connected, and the cathode of third diode (D3) is connected with the base stage of third transistor (Q3), third transistor (Q3)
Collector is connected with the cathode of the 5th diode (D5), and the anode of the 5th diode (D5) is connect with point a;The third
The cathode of the emitter of triode (Q3) and the 7th diode (D7) is connected to point c;The anode of 7th diode (D7) with
The input terminal of inductance (L) is connected, described to be connected to point b with inductance (L) output end;Load is connected between the point c and point d
Resistance (Rload);
The minimum electronic switch (1-12) include the 6th diode (D6), the 4th triode (Q4), the 4th diode (D4),
Second triode (Q2), the second diode (D2) and the 8th diode (D8);The cathode and point a of 6th diode (D6) connect
It connects;The anode of 6th diode (D6) is connected with the collector of the 4th triode (Q4);4th triode (Q4)
Emitter and the anode of the 8th diode (D8) be connected to point d, the cathode of the 8th diode (D8) and inductance (L's)
Input terminal is connected;The base stage of 4th triode (Q4) is connected with the anode of the 4th diode (D4), and the described 4th 2
The cathode of pole pipe (D4) is connected with the collector of the second triode (Q2), and the base stage and point a of second triode (Q2) connect
It connects;The emitter of second triode (Q2) and the anode of the second diode (D2) are connected to point e, second diode
(D2) cathode is connected with the one end of second resistance (R2), and the other end of the second resistance (R2) is connected to point a;Point e with
The input terminal of second capacitor (C2) is connected, and the output end of second capacitor (C2) is connect with point b;
The rectification circuit (1-3) includes the 9th diode (D9) and the tenth diode (D10), the 9th diode (D9)
Cathode is connect with point a, and the anode of the 9th diode (D9) is connected with switch amplifying circuit (3);Tenth diode
(D10) anode is connect with point b, and the cathode of the tenth diode (D10) is connected with switch amplifying circuit (3).
3. it is a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system according to claim 2, it is special
Sign is, switch amplifying circuit (3) include be connected let out electrical circuit (3-1) and booster circuit (3-2), it is described to let out electricity time
Road (3-1) includes the first mos pipe (T1), is parallel with the 7th resistance (Rd), institute between the grid and source electrode of the first mos pipe (T1)
The grid for stating the first mos pipe (T1) is connected with the anode of the 9th diode (D9), and the first mos manages the source electrode and the of (T1)
The cathode of ten diodes (D10) is connected;The source electrode of the first mos pipe (T1) is also used to be connected with the second piezoelectric element (5)
It connects, the grid of the first mos pipe (T1) is connected with the anode of booster circuit (3-2), the cathode of the booster circuit (3-2)
For being connected with the second piezoelectric element (5).
4. it is described in accordance with the claim 3 a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system, it is special
Sign is that the automatic shutdown circuit (2) includes that the standard being connected adopts energy circuit (2-1) and two cascade mos pipe (2-
2), the standard adopts the input terminal of energy circuit (2-1) for being connected with third piezoelectric element (6);Described two cascade mos
Managing (2-2) includes the 2nd mos pipe (T2) and the 3rd mos pipe (T3), and the drain electrode of the 2nd mos pipe (T2) and the 3rd mos are managed
(T3) grid is connected, and the drain electrode of the 3rd mos pipe (T3) is connected with the anode of booster circuit (3-2);The third
The source electrode of mos pipe (T3) is connect with f point;The source electrode of the 2nd mos pipe (T2) is connect with f point;The 2nd mos pipe (T2)
Grid is connected with one end of the 6th resistance (R6), one end phase of the one end of the 6th resistance (R6) also with the 5th resistance (R5)
Connection, the other end of the 5th resistance (R5) and standard adopt can circuit (2-1) be connected to point g, point g and 3rd resistor (R3's)
One end is connected, and the other end of 3rd resistor (R3) is connected with the 4th resistance (R4), the other end of the 4th resistance (R4)
It is connected to point f, point f adopts energy circuit (2-1) with standard and is connected.
5. it is a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system according to claim 4, it is special
Sign is that it includes two groups of diode groups being connected in parallel that the standard, which adopts energy circuit (2-1), after being connected in parallel, tie point point
It is not connect with point g and point f, third capacitor (C3) is also parallel between point g and point f.
6. it is a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system according to claim 5, it is special
Sign is that two groups of diode groups include the 11st diode (D11), the 12nd diode (D12), the 13rd diode
(D13) and the 14th diode (D14), the cathode of the 12nd diode (D12) and the anode of the 11st diode (D11)
It is connected to point h, the cathode of the 11st diode (D11) and the cathode of the 14th diode (D14) are connected to point g, described
The anode of 14th diode (D14) and the cathode of the 13rd diode (D13) are connected to point i, the 13rd diode
(D13) anode of anode and the 12nd diode (D12) is connected to point f;Point h is for one end with third piezoelectric element (6)
It is connected, point i with the other end of third piezoelectric element (6) for being connected.
7. it is a kind of for triggering the perception exciting circuit certainly of bistable state energy collecting system according to claim 5, it is special
Sign is that the bistable state energy collecting system is magnetic-type cantilever beam electricity energy harvester, and the root of cantilever beam passes through corresponding
First piezoelectric element (4) and the second piezoelectric element (5) are connected with from aware circuit (1) and automatic shutdown circuit (2), cantilever beam
Free end by third piezoelectric element (6) with switch amplifying circuit (3) be connected;The free end of cantilever beam is additionally provided with the 4th
Piezoelectric element (7), the 4th piezoelectric element (7) are used to reflect by the voltage of its generation the strong of bistable system vibration
It is weak.
8. according to of any of claims 1-7 a kind of for triggering motivating from perception for bistable state energy collecting system
The working method of circuit, which is characterized in that the working method is as follows: it is generated needed for switch amplifying circuit (3) from aware circuit (1)
Switching drive signal, switch amplifying circuit (3) receives the switching drive signal, provides needed for the second piezoelectric element (5)
Driving voltage signal, promotes bistable system to operate in higher energy orbital;Bistable system vibration is collected from aware circuit (1) simultaneously
The energy generated during dynamic;When bistable system operates in higher energy orbital, automatic shutdown circuit;When bistable system is transported
Row is automatic to be connected in higher energy orbital.
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CN114483867B (en) * | 2022-02-23 | 2023-11-10 | 深圳市爱协生科技股份有限公司 | Damping piezoelectric vibration control circuit of self-adaptive voltage source synchronous switch |
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