CN109753103A - A kind of maximal power tracing control system for collection of energy - Google Patents
A kind of maximal power tracing control system for collection of energy Download PDFInfo
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- CN109753103A CN109753103A CN201910089433.1A CN201910089433A CN109753103A CN 109753103 A CN109753103 A CN 109753103A CN 201910089433 A CN201910089433 A CN 201910089433A CN 109753103 A CN109753103 A CN 109753103A
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Abstract
The present invention provides a kind of maximal power tracing control systems for collection of energy, including sequentially connected amplification and compensation circuit, switch controlled logic and driving circuit, switching power converters topological circuit and output voltage feed circuit, it further include sequentially connected maximal power tracing control sequential generation circuit, maximal power tracing controls sampling hold circuit and polycyclic road feedback complex type error amplifying circuit, maximal power tracing control system of the invention generates the narrow pulse signal of a cycle using maximal power tracing control sequential generation circuit, maximal power tracing controls sample circuit and realizes periodic samples, polycyclic road feedback complex type error amplifying circuit is realized that polycyclic road is first compound and is compensated again, maximal power tracing can be realized to energy harvester using foregoing circuit structure, and it can be applied to a variety of Switching Power Supply transformation Device topological structure, circuit can make energy harvester realize maximum power conversion, and have many advantages, such as low-power consumption, small area, may be programmed.
Description
Technical field
The invention belongs to automatic control equipment fields, are related to the maximal power tracing control of collection of energy, and in particular to Yi Zhongyong
In the maximal power tracing control system of collection of energy.
Background technique
Maximal power tracing technology is the key technology of micro-energy collection system, and major function is exactly to realize to receive energy
The maximum power of storage is converted, and has significant application value.
The efficiency of the power transmission of energy harvester based on solar energy, thermal energy etc. and its energy acquisition amount and load electronics
Characteristic is related, if load can cooperate the highest load curve of power transmission efficiency to adjust, system has optimal efficiency.Function
The highest load characteristic of rate efficiency of transmission is known as maximum power point.
The way of switching regulator charging converter in energy collection circuit in the prior art is defeated using constant current or constant pressure
Mode out collects energy.The existing maximal power tracing control system for collection of energy include amplification with compensation network,
Switch tube driving circuit, switching tube converter topology structure and output voltage feedback network, output voltage are anti-by electric resistance partial pressure
It is fed to amplification and compensation network, and energy is received by booster type or adjusting and voltage-reduction switch supply convertor topological structure
Collection.The shortcomings that such way is the maximum power point that cannot effectively capture energy harvester, can not achieve maximum power with
Track conversion.
That is, the existing control system for collection of energy passes through control circuit on constant power to energy harvester
The energy being collected into is transmitted to extra power storage facility after being integrated, cannot collect to energy harvester but be more than this
The energy of firm power is effectively converted and is conveyed.
Therefore, especially lacking at present can be tracked according to the maximum point of energy harvester output power, integration processing
And export to energy storage facility, i.e., the peak power output of energy harvester is tracked and collected by being handled and being transmitted
Most energy, avoid the loss for the energy for causing energy harvester to collect because of level pressure or constant current, to guarantee to energy
Amount collector has collected the effective use of the energy.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of maximums for collection of energy
Power tracking control system, with solve the switching regulator charging converter in energy collection circuit in the prior art using constant current or
Constant voltage output and the technical issues of can not achieve the MPPT maximum power point tracking of energy harvester.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved:
A kind of maximal power tracing control system for collection of energy, including amplification and compensation circuit, switch controlled
Logic and driving circuit, switching power converters topological circuit and output voltage feed circuit, further include maximal power tracing control
Timing sequence generating circuit, maximal power tracing control sampling hold circuit and polycyclic road feedback complex type error amplifying circuit processed；
The maximal power tracing control sequential generation circuit keeps electricity for generating maximal power tracing control sampling
The clock signal of on-off the control signal and input switch pipe control logic and driving circuit of the switch S1 on road；
The maximal power tracing control sampling hold circuit is for generating feedback control signal VFB1 to be composite；
The switching power converters topological circuit is using the driving signal inputted to the output voltage of energy harvester
Pressure regulation is carried out, and is exported to voltage feedback circuit and system outer energy storage facility；
The output voltage feed circuit is for generating feedback control signal VFB2 to be composite and to feed back to polycyclic road anti-
Present compound error amplifying circuit；
The polycyclic road feedback complex type error amplifying circuit is used for by feedback control signal VFB1 to be composite and to multiple
Conjunction feedback control signal VFB2 signal and externally input reference voltage signal VR1 and VR2 generate compound after compound amplification
Signal is controlled, and is transmitted to the amplification and compensation circuit；
The amplification with compensation circuit is used to that compound amplified composite feedback control signal to be amplified and be compensated
It is exported afterwards to the switch controlled logic and driving circuit；
The switch controlled logic and driving circuit by clock signal for being controlled through amplification and compensation circuit
The signal of output, and output drive signal is to the switching power converters topological circuit.
The present invention also has following technical characteristic:
Specifically, switch controlled logic and driving circuit that the output end connection of the amplification and compensation circuit is described
Input terminal i, the output end k and l of the switch controlled logic and driving circuit be separately connected the Switching Power Supply and become
The input terminal m and n of parallel operation topological circuit, the output end p of the switching power converters topological circuit are connected to described defeated
The input terminal o connection energy of one end of the resistance R3 of voltage feedback circuit out, the switching power converters topological circuit is received
The anode VIN of storage；
Two output ends a and b of the maximal power tracing control sequential generation circuit be separately connected maximum power with
Track controls the switch S1 of sampling hold circuit input terminal and the input terminal j of switch controlled logic and driving circuit；
The anode VIN of the input terminal connection energy harvester of the maximal power tracing control sampling hold circuit, institute
The output end connection for the maximal power tracing control sampling hold circuit the stated polycyclic road feedback complex type error amplification electricity
The input terminal c on road；
The input terminal e connection of the polycyclic road feedback complex type error amplifying circuit output voltage feeds back electricity
Road, the output end g and h of the polycyclic road feedback complex type error amplifying circuit are connected to the amplification and compensation electricity
The noninverting input VR and reverse input end VFB, the input terminal d of the polycyclic road feedback complex type error amplifying circuit on road and
F is separately connected reference voltage VR1 and reference voltage VR2；
The negativing ending grounding of the energy harvester, the resistance R2 of the maximal power tracing control sampling hold circuit
It is grounded with the input terminal q of capacitor C2 earth, the switching power converters topological circuit.
Specifically, the maximal power tracing control sequential generation circuit includes d type flip flop 1, d type flip flop 2, D triggering
Device 3, d type flip flop 4, the input of d type flip flop 5, six and door and phase inverter；
The end D1 of d type flip flop 1 and the end CLK at the end Q1N of d type flip flop 1 and d type flip flop 2 are all connected with, the end Q1 of d type flip flop 1
It is connect with six inputs with the end door s；
The end D2 of d type flip flop 2 is all connected with the end Q2N of d type flip flop 2 and the end CLK of d type flip flop 3, the end Q2 of d type flip flop 2
It is connect with six inputs with the end door t；
The end D3 of d type flip flop 3 is all connected with the end Q3N of d type flip flop 3 and the end CLK of d type flip flop 4, the end Q3 of d type flip flop 3
It is connect with six inputs with the end door u；
The end D4 of d type flip flop 4 is all connected with the end Q4N of d type flip flop 4 and the end CLK of d type flip flop 5, the end Q4 of d type flip flop 4
It is connect with six inputs with the end door v；
The end D5 of d type flip flop 5 is connected with the end Q5N of d type flip flop 5, and the end Q5 of d type flip flop 5 connects with six inputs with the end door w
It connects；
Output signal CLK_OUT is connected to the input terminal of reverser, and the output end of phase inverter is connected to out by output end b
Close the input terminal j of pipe control logic and driving circuit；
The end CLK_IN of d type flip flop 1 is connect with six inputs with the end door r, and six inputs and the CLK_OUT output end of door are described
Maximal power tracing control sequential generation circuit the end a.
Specifically, the maximal power tracing control sampling hold circuit includes resistance R1, resistance R2, switch S1 and electricity
Hold C2,
Anode VIN, R1, R2 of energy harvester are sequentially connected in series, and the one end switch S1 is connected between R1 and R2, and the other end connects
Meet capacitor C2, the input terminal c of the polycyclic road feedback complex type error amplifying circuit by switch S1 be connected to resistance R1 and
Between resistance R2.
Specifically, the output voltage feed circuit includes resistance R3 and R4,
The other end and resistance R4 of resistance R3 is connected, the other end of resistance R4 and switching power converters topology electricity
The end the q earth on road.
Specifically, the switching power converters topological circuit includes capacitor C3, capacitor C4, PMOS tube M1, NMOS tube
M2 and inductance L1,
The drain electrode of the source electrode of the anode VIN connection PMOS tube M1 of energy harvester and one end of capacitor C3, PMOS tube M1 connects
Connect the drain electrode of NMOS tube M2 and one end of inductance L1, switching power converters topological circuit described in the grid of PMOS tube M1 it is defeated
Enter to hold m；
NMOS tube M2 grid is the input terminal n of the switching power converters topological circuit, and the drain electrode of NMOS tube M2 connects
One end of inductance L1, one end of the other end connection capacitor C4 of inductance L1 and the R3 of the output voltage feed circuit are met, and
For the output end p of the switching power converters topological circuit；
The sources connected in parallel of the other end of capacitor C3, the other end of capacitor C4 and NMOS tube M2 is grounded, and C4 is grounded one end as institute
The input terminal q for the switching power converters topological circuit stated.
Specifically, the switching power converters topological circuit includes capacitor C5, capacitor C6, PMOS tube M3, NMOS tube
M4 and inductance L2,
One end of the anode VIN connection capacitor C5 of energy harvester and one end of inductance L2, the other end connection of inductance L2
To the drain electrode of NMOS tube M4 and the source electrode of PMOS tube M3, the grid of NMOS tube M4 is the switching power converters topological circuit
Input terminal n；
The grid of PMOS tube M3 is the input terminal m of the switching power converters topological circuit, the drain electrode of PMOS tube M3
It is connect with the R3 of one end of capacitor C6 and the output voltage feed circuit and electric for the switching power converters topology
The output end p on road；
The other end earth of the other end of capacitor C5, the source electrode of NMOS tube M4 and capacitor C6, C6 are grounded one end as institute
The input terminal q for the switching power converters topological circuit stated.
Compared with prior art, the present invention beneficial has the technical effect that
(I) circuit of the present invention is protected using maximal power tracing control sequential generation circuit, maximal power tracing control sampling
It holds circuit, polycyclic road feedback complex type error amplifying circuit etc. and maximal power tracing is realized to energy harvester, and can be applied to
A variety of switching power converters topological structures, circuit can make energy harvester realize maximum power conversion, and have low-power consumption,
Small area, it is programmable the advantages that；
(II) the maximal power tracing control sequential generation circuit that the present invention uses generates the burst pulse letter of a cycle
Number, maximal power tracing control sampling hold circuit and switch control logic and driving circuit are controlled respectively, periodic duty
Mode is effectively reduced the power consumption of system and is minimized the influence converted to energy collecting system power；
(III) the maximal power tracing control sample circuit that the present invention uses can realize periodic samples, which can lead to
The ratio for overregulating resistance, which realizes Maximun power coefficient, may be programmed, and have the advantages that precision is high, low in energy consumption；
(IV) the polycyclic road feedback complex type error amplifying circuit that the present invention uses can realize that polycyclic road is first compound and compensate again,
It efficiently reduces circuit area and the smooth conversion between control loop may be implemented.
Detailed description of the invention
Fig. 1 is the system-wide electrical block diagram of the present invention；
Fig. 2 is maximal power tracing control sequential generation circuit structural schematic diagram；
Fig. 3 is switching power converters topological structure electrical block diagram；
Fig. 4 is another switching power converters topological structure electrical block diagram；
Fig. 5 is the electrical block diagram for being used for collection of energy in the prior art；
The meaning of each label in figure are as follows: 1- amplification and compensation circuit, 2- switch controlled logic and driving circuit, 3- are opened
Powered-down source converter topological circuit, 4- output voltage feed circuit, 5- maximal power tracing control sequential generation circuit, 6- are maximum
Power tracking controls sampling hold circuit, the polycyclic road feedback complex type error amplifying circuit of 7-.
Explanation is further explained in detail to particular content of the invention with reference to embodiments.
Specific embodiment
In compliance with the above technical solution, specific embodiments of the present invention are given below, it should be noted that the present invention not office
It is limited to following specific embodiments, all equivalent transformations made on the basis of the technical solutions of the present application each falls within protection model of the invention
It encloses.The present invention is described in further details below with reference to embodiment.
Embodiment 1:
The present embodiment provides a kind of maximal power tracing control system for collection of energy, as shown in Figures 1 to 3, including
Amplify anti-with compensation circuit 1, switch controlled logic and driving circuit 2, switching power converters topological circuit 3 and output voltage
Current feed circuit 4 further includes maximal power tracing control sequential generation circuit 5, maximal power tracing control sampling hold circuit 6 and more
The compound error amplifying circuit 7 of loop feedback；
Maximal power tracing control sequential generation circuit 5 passes through output for generating periodic short pulse signal CLK_OUT
A input maximal power tracing is held to control sampling hold circuit 6, the output that periodic short pulse signal CLK_OUT passes through phase inverter
End b is transferred to the input terminal j of switch controlled logic and driving circuit 2；
Maximal power tracing controls sampling hold circuit 6 and is used to the output voltage signal of energy harvester passing through resistance R1
On-off after being divided with R2 through switch S1 generates feedback control signal VFB1 to be composite；
Switching power converters topological circuit 3 is used to the output voltage of energy harvester carrying out pressure regulation and export to voltage
Feed circuit 4 and system outer energy storage facility；
Output voltage feed circuit 4 by the output voltage of the energy harvester after pressure regulation by R3 and R4 for that will be carried out
Polycyclic road feedback complex type error amplifying circuit 7 is fed back to as feedback control signal VFB2 to be composite after partial pressure；
Polycyclic road feedback complex type error amplifying circuit 7 is used for the feedback control signal VFB1 to be composite that will input and wait answer
Feedback control signal VFB2 signal and externally input reference voltage signal VR1 and VR2 are closed after compound amplification as compound
Control signal is transmitted to amplification and compensation circuit 1；
Amplification is used to amplify compound amplified composite feedback control signal and export with after compensation with compensation circuit 1
To the switch controlled logic and driving circuit 2；
Switch controlled logic and driving circuit 2 are used for the timing according to maximal power tracing control sequential generation circuit 5
Signal is amplified the signal with compensation circuit output to control, and output drive signal is topological to the switching power converters
Circuit 3, driving switch supply convertor topological circuit 3 carry out pressure regulation to the output voltage of energy harvester.
As a kind of concrete scheme of the present embodiment, the amplification of the present embodiment and the output end connection switch of compensation circuit 1
The output end k and l of the input terminal i of pipe control logic and driving circuit 2, switch controlled logic and driving circuit 2 are separately connected
The input terminal m and n of switching power converters topological circuit 3, the output end p of switching power converters topological circuit 3 is connected to defeated
One end of the resistance R3 of voltage feedback circuit 4 out, the input terminal o connection energy harvester of switching power converters topological circuit 3
Anode VIN；
Two output ends a and b of maximal power tracing control sequential generation circuit 5 are separately connected maximal power tracing control
The switch S1 and switch controlled logic of 6 input terminal of sampling hold circuit and the input terminal j of driving circuit 2；
Maximal power tracing controls the anode VIN of the input terminal connection energy harvester of sampling hold circuit 6, maximum power
The output end of tracing control sampling hold circuit 6 connects the input terminal c of polycyclic road feedback complex type error amplifying circuit 7；
The input terminal e connection output voltage feed circuit 4 of polycyclic road feedback complex type error amplifying circuit 7, polycyclic road is anti-
The output end g and h for presenting compound error amplifying circuit 7 are connected to the noninverting input VR of amplification and compensation circuit 1 and anti-
To input terminal VFB, the input terminal d and f of polycyclic road feedback complex type error amplifying circuit 7 are separately connected reference voltage VR1 and base
Quasi- voltage VR2；
The negativing ending grounding of energy harvester, maximal power tracing control the resistance R2 and capacitor C2 of sampling hold circuit 6 simultaneously
Connection ground, the input terminal q ground connection of switching power converters topological circuit 3.
As a kind of concrete scheme of the present embodiment, the maximal power tracing control sequential generation circuit 5 of the present embodiment is wrapped
Include d type flip flop 1, d type flip flop 2, d type flip flop 3, d type flip flop 4, the input of d type flip flop 5, six and door and phase inverter；
The end D1 of d type flip flop 1 and the end CLK at the end Q1N of d type flip flop 1 and d type flip flop 2 are all connected with, the end Q1 of d type flip flop 1
It is connect with six inputs with the end door s；
The end D2 of d type flip flop 2 is all connected with the end Q2N of d type flip flop 2 and the end CLK of d type flip flop 3, the end Q2 of d type flip flop 2
It is connect with six inputs with the end door t；
The end D3 of d type flip flop 3 is all connected with the end Q3N of d type flip flop 3 and the end CLK of d type flip flop 4, the end Q3 of d type flip flop 3
It is connect with six inputs with the end door u；
The end D4 of d type flip flop 4 is all connected with the end Q4N of d type flip flop 4 and the end CLK of d type flip flop 5, the end Q4 of d type flip flop 4
It is connect with six inputs with the end door v；
The end D5 of d type flip flop 5 is connected with the end Q5N of d type flip flop 5, and the end Q5 of d type flip flop 5 connects with six inputs with the end door w
It connects；
Output signal CLK_OUT is connected to the input terminal of reverser, and the output end of phase inverter is connected to out by output end b
Close the input terminal j of pipe control logic and driving circuit；
The end CLK_IN of d type flip flop 1 is connect with six inputs with the end door r, and the CLK_OUT output end of six inputs and door is maximum
The end a of power tracking control sequential generation circuit 5.
D type flip flop 1, d type flip flop 2, the d type flip flop 3, D of the maximal power tracing control sequential generation circuit 5 of the present embodiment
Trigger 4, d type flip flop 5 are sequentially connected in series frequency dividing, respectively generate output signal Q1, Q2, Q3, Q4, Q5, output signal Q1, Q2, Q3,
Q4, Q5 and input clock signal CLK_IN carry out logical AND, the final narrow pulse signal CLK_OUT for generating a cycle, week
Phase property narrow pulse signal CLK_OUT generates a signal opposite with CLK_OUT by phase inverter, is used to control switch control system
Logic and driving circuit.
As a kind of concrete scheme of the present embodiment, the maximal power tracing control sampling hold circuit 6 of the present embodiment is wrapped
Resistance R1, resistance R2, switch S1 and capacitor C2 are included,
Anode VIN, R1, R2 of energy harvester are sequentially connected in series, and the one end switch S1 is connected between R1 and R2, and the other end connects
Capacitor C2 is met, the input terminal c of polycyclic road feedback complex type error amplifying circuit 7 is connected between switch S1 and resistance R2.
The R1 of the maximal power tracing control sampling hold circuit 6 of the present embodiment connects with R2 divides input voltage
Pressure sets maximal power tracing point, and switch S1 is sampling switch, and capacitor C2 is sampling capacitance, will be defeated during switch S1 closure
The partial pressure value for entering voltage is sampled and is remained on capacitor C2.
As a kind of concrete scheme of the present embodiment, the output voltage feed circuit 4 of the present embodiment includes resistance R3 and R4,
Resistance R3 and resistance R4 series connection, the other end of resistance R4 and the end q of switching power converters topological circuit 3 simultaneously couple
Ground.
The R3 and R4 of the output voltage feed circuit 4 of the present embodiment are output voltage feedback resistances, for setting output electricity
Pressure value.
As a kind of concrete scheme of the present embodiment, the switching power converters topological circuit 3 of the present embodiment includes capacitor
C3, capacitor C4, PMOS tube M1, NMOS tube M2 and inductance L1,
The source electrode of the anode VIN connection PMOS tube M1 of energy harvester and one end of capacitor C3,
The drain electrode of the drain electrode connection NMOS tube M2 of PMOS tube M1 and one end of inductance L1, the gate switch power supply of PMOS tube M1
The input terminal m of converter topology circuit 3；
NMOS tube M2 grid is the input terminal n of switching power converters topological circuit 3, and the drain electrode of NMOS tube M2 connects inductance
One end of L1, one end of the other end connection capacitor C4 of inductance L1 and the R3 of output voltage feed circuit 4, and become for Switching Power Supply
The output end p of parallel operation topological circuit 3；
The sources connected in parallel of the other end of capacitor C3, the other end of capacitor C4 and NMOS tube M2 is grounded, and it is to open that C4, which is grounded one end,
The input terminal q of powered-down source converter topological circuit 3.
The PMOS tube M1 of the switching power converters topological circuit 3 of the present embodiment is used as main switch, and NMOS tube M2 is used as
Lock-in tube, M1 are sequentially turned on M2, pass through the cooperation with inductance L1, to achieve the purpose that power supply is converted, capacitor C3 and capacitor C4
Pressure stabilizing is carried out to input voltage and output voltage respectively.
Embodiment 2:
The present embodiment provides a kind of maximal power tracing control system for collection of energy, as shown in Fig. 1,2 and 4, packet
Include amplification and compensation circuit 1, switch controlled logic and driving circuit 2, switching power converters topological circuit 3 and output voltage
Feed circuit 4 further includes maximal power tracing control sequential generation circuit 5, maximal power tracing control 6 and of sampling hold circuit
Polycyclic road feedback complex type error amplifying circuit 7；
The amplification of the present embodiment and compensation circuit 1, switch controlled logic and driving circuit 2, output voltage feed circuit
4, maximal power tracing control sequential generation circuit 5, maximal power tracing control sampling hold circuit 6 and polycyclic road feedback complex
7 specific structure of type error amplifying circuit and connection type are same as Example 1.
As a kind of concrete scheme of the present embodiment, the switching power converters topological circuit 3 of the present embodiment includes capacitor
C5, capacitor C6, PMOS tube M3, NMOS tube M4 and inductance L2,
One end of the anode VIN connection capacitor C5 of energy harvester and one end of inductance L2, the other end connection of inductance L2
To the drain electrode of NMOS tube M4 and the source electrode of PMOS tube M3, the grid of NMOS tube M4 is the defeated of switching power converters topological circuit 3
Enter to hold n；
The grid of PMOS tube M3 is the input terminal m of switching power converters topological circuit 3, the drain electrode of PMOS tube M3 and capacitor
One end of C6 connects with the R3 of output voltage feed circuit 4 and is the output end p of switching power converters topological circuit 3；
The other end earth of the other end of capacitor C5, the source electrode of NMOS tube M4 and capacitor C6, it is to open that C6, which is grounded one end,
The input terminal q of powered-down source converter topological circuit 3.
The NMOS tube M4 of the switching power converters topological circuit 3 of the present embodiment is used as main switch, and PMOS tube M3 is used as
Lock-in tube, M4 are sequentially turned on M3, pass through the cooperation with inductance L2, to achieve the purpose that power supply is converted, capacitor C5 and capacitor C6
Pressure stabilizing is carried out to input voltage and output voltage respectively.
The process that uses and works of maximal power tracing control system for collection of energy of the invention can be by such as
Under the mode carry out:
The present invention is provided with amplification and compensation circuit 1, switch controlled logic and driving circuit 2, switching power converters
Topological circuit 3, output voltage feed circuit 4, maximal power tracing control sequential generation circuit 5, maximal power tracing control are adopted
Sample holding circuit 6 and polycyclic road feedback complex type error amplifying circuit 7, can effectively solve conventional energy collecting circuit cannot be real
The problem of existing maximum power conversion；
Maximal power tracing control system for collection of energy of the invention is suitable for more switching power converters and opens up
Circuit structure is flutterred, the switching power converters topological circuit 3 being not limited in two embodiments of the invention,
When the maximal power tracing control system for collection of energy of the invention works normally, maximal power tracing control
Clock output signal CLK_OUT is controlled sampling hold circuit to maximal power tracing by output end a by timing sequence generating circuit 5 processed
6, it is periodically detected to realize；Maximal power tracing control sampling hold circuit 6 passes through the signal VFB1 obtained after partial pressure
Switch S1 passes to polycyclic road feedback complex type error amplifying circuit 7 to realize the tune of maximal power tracing point feedback signal
Section；Voltage feedback signal VFB2 is passed to polycyclic road feedback complex type error by input terminal e and put by output voltage feed circuit 4
Big circuit 7, to realize output pressure stabilizing；Output end g and outlet the h difference of polycyclic road feedback complex type error amplifying circuit 7 are defeated
Feedback voltage V R and VFB and it is separately input to amplification and the non-inverting input terminal and inverting input terminal of compensation circuit 1 out, so as to by two
The feedback result merging of a loop passes to amplification and compensation circuit 1 together；Amplification passes through output signal with compensation circuit 1 defeated
Enter to hold i to pass to the input terminal i of switch controlled logic and driving circuit 2, to amplify and compensate signal, generates drive
Dynamic signal；Output signal VDRV1 and VDRV2 are passed through input terminal m and input terminal by switch controlled logic and driving circuit 2 respectively
N passes to switching power converters topological circuit 3, so that driving switch supply convertor topological circuit 3 is to energy harvester
Output voltage carries out pressure regulation, exports after pressure regulation to external energy storage facility.
The present invention generates narrow pulse signal using maximal power tracing control sequential generation circuit 5 and (for example generates one
A period be 8.192S, pulsewidth be 128mS narrow pulse signal) come control maximal power tracing control sampling hold circuit 6
Switch S1, realize periodic test so as to energy harvester carry out maximum power conversion；The present invention uses more loop feedbacks
Loop signals are carried out feedback comparison, the maximum power point of adjustable energy collector, realization pair by compound error amplifying circuit 7
The maximum power of energy harvester is converted.
Claims (7)
1. a kind of maximal power tracing control system for collection of energy, including amplification and compensation circuit (1), switch controlled
Logic and driving circuit (2), switching power converters topological circuit (3) and output voltage feed circuit (4), which is characterized in that
It further include maximal power tracing control sequential generation circuit (5), maximal power tracing control sampling hold circuit (6) and polycyclic road
Feedback complex type error amplifying circuit (7)；
The maximal power tracing control sequential generation circuit (5) is for generating maximal power tracing control sampling hold circuit
(6) clock signal of on-off the control signal and input switch pipe control logic and driving circuit (2) of switch S1；
Maximal power tracing control sampling hold circuit (6) is for generating feedback control signal VFB1 to be composite；
The switching power converters topological circuit (3) using input driving signal to the output voltage of energy harvester into
Row pressure regulation, and export to voltage feedback circuit (4) and system outer energy storage facility；
The output voltage feed circuit (4) is for generating feedback control signal VFB2 to be composite and feeding back to more loop feedbacks
Compound error amplifying circuit (7)；
The polycyclic road feedback complex type error amplifying circuit (7) is used for feedback control signal VFB1 to be composite and to be composite
Feedback control signal VFB2 signal and externally input reference voltage signal VR1 and VR2 generate compound control after compound amplification
Signal processed, and it is transmitted to the amplification and compensation circuit (1)；
After the amplification and compensation circuit (1) is used to that compound amplified composite feedback control signal to be amplified and be compensated
It exports to the switch controlled logic and driving circuit (2)；
The switch controlled logic and driving circuit (2) are defeated with compensation circuit through amplification for being controlled by clock signal
Signal out, and output drive signal is to the switching power converters topological circuit (3).
2. being used for the maximal power tracing control system of collection of energy as described in claim 1, which is characterized in that described puts
The input terminal i of the switch controlled logic and driving circuit (2) is connect with the output end of compensation circuit (1) greatly, it is described
The output end k and l of switch controlled logic and driving circuit (2) are separately connected the switching power converters topological circuit
(3) input terminal m and n, the output end p of the switching power converters topological circuit (3) are connected to the output voltage
The input terminal o connection energy of one end of the resistance R3 of feed circuit (4), the switching power converters topological circuit (3) is received
The anode VIN of storage；
The output end a connection of the maximal power tracing control sequential generation circuit (5) the maximal power tracing control
The switch S1 of sampling hold circuit (6), the output end b connection of the maximal power tracing control sequential generation circuit (5) are opened
Close the input terminal j of pipe control logic and driving circuit (2)；
The anode VIN of the input terminal connection energy harvester of described maximal power tracing control sampling hold circuit (6), it is described
The output end connection polycyclic road feedback complex type error of maximal power tracing control sampling hold circuit (6) amplify electricity
The input terminal c on road (7)；
The input terminal e connection of the polycyclic road feedback complex type error amplifying circuit (7) the output voltage feed circuit
(4), the output end g and h of the polycyclic road feedback complex type error amplifying circuit (7) are connected to the amplification and benefit
Repay the noninverting input VR and reverse input end VFB of circuit (1), the polycyclic road feedback complex type error amplifying circuit (7)
Input terminal d and f be separately connected reference voltage VR1 and reference voltage VR2；
The negativing ending grounding of the energy harvester, the resistance R2 of maximal power tracing control sampling hold circuit (6)
It is grounded with the input terminal q of capacitor C2 earth, the switching power converters topological circuit (3).
3. as described in claim 1 be used for collection of energy maximal power tracing control system, which is characterized in that it is described most
High-power tracing control timing sequence generating circuit (5) includes d type flip flop 1, d type flip flop 2, d type flip flop 3, d type flip flop 4, d type flip flop
5, six inputs and door and phase inverter；
The end D1 of d type flip flop 1 and the end CLK at the end Q1N of d type flip flop 1 and d type flip flop 2 are all connected with, the end Q1 and six of d type flip flop 1
Input is connect with the end door s；
The end D2 of d type flip flop 2 is all connected with the end Q2N of d type flip flop 2 and the end CLK of d type flip flop 3, the end Q2 and six of d type flip flop 2
Input is connect with the end door t；
The end D3 of d type flip flop 3 is all connected with the end Q3N of d type flip flop 3 and the end CLK of d type flip flop 4, the end Q3 and six of d type flip flop 3
Input is connect with the end door u；
The end D4 of d type flip flop 4 is all connected with the end Q4N of d type flip flop 4 and the end CLK of d type flip flop 5, the end Q4 and six of d type flip flop 4
Input is connect with the end door v；
The end D5 of d type flip flop 5 is connected with the end Q5N of d type flip flop 5, and the end Q5 of d type flip flop 5 is connect with six inputs with the end door w；
Output signal CLK_OUT is connected to the input terminal of reverser, and the output end of phase inverter is connected to switching tube by output end b
The input terminal j of control logic and driving circuit；
The end CLK_IN of d type flip flop 1 connect with six inputs with the end door r, the CLK_OUT output end of six inputs and door for it is described most
The end a of high-power tracing control timing sequence generating circuit (5).
4. as described in claim 1 be used for collection of energy maximal power tracing control system, which is characterized in that it is described most
High-power tracing control sampling hold circuit (6) includes resistance R1, resistance R2, switch S1 and capacitor C2,
Energy harvester anode VIN, R1, R2 are sequentially connected in series, and the one end switch S1 is connected between R1 and R2, and the other end connects capacitor
The input terminal c of C2, the polycyclic road feedback complex type error amplifying circuit (7) are connected to resistance R1 and resistance by switch S1
Between R2.
5. being used for the maximal power tracing control system of collection of energy as described in claim 1, which is characterized in that described is defeated
Voltage feedback circuit (4) includes resistance R3 and R4 out,
The end q of resistance R3 and resistance R4 series connection, the other end of resistance R4 and the switching power converters topological circuit (3) is simultaneously
Connection ground.
6. being used for the maximal power tracing control system of collection of energy as described in claim 1, which is characterized in that described opens
Powered-down source converter topological circuit (3) includes capacitor C3, capacitor C4, PMOS tube M1, NMOS tube M2 and inductance L1,
The source electrode of the anode VIN connection PMOS tube M1 of energy harvester and one end of capacitor C3, the drain electrode connection of PMOS tube M1
The drain electrode of NMOS tube M2 and one end of inductance L1, switching power converters topological circuit (3) described in the grid of PMOS tube M1
Input terminal m；
NMOS tube M2 grid is the input terminal n of the switching power converters topological circuit (3), the drain electrode connection of NMOS tube M2
One end of inductance L1, one end of the other end connection capacitor C4 of inductance L1 and the R3 of the output voltage feed circuit (4), and
For the output end p of the switching power converters topological circuit (3)；
The sources connected in parallel of the other end of capacitor C3, the other end of capacitor C4 and NMOS tube M2 is grounded, and it is described that C4, which is grounded one end,
The input terminal q of switching power converters topological circuit (3).
7. being used for the maximal power tracing control system of collection of energy as described in claim 1, which is characterized in that described opens
Powered-down source converter topological circuit (3) includes capacitor C5, capacitor C6, PMOS tube M3, NMOS tube M4 and inductance L2,
One end of the anode VIN connection capacitor C5 of energy harvester and one end of inductance L2, the other end of inductance L2 are connected to
The drain electrode of NMOS tube M4 and the source electrode of PMOS tube M3, the grid of NMOS tube M4 are the switching power converters topological circuit
(3) input terminal n；
The grid of PMOS tube M3 be the switching power converters topological circuit (3) input terminal m, the drain electrode of PMOS tube M3 with
One end of capacitor C6 connects with the R3 of the output voltage feed circuit (4) and is the switching power converters topology electricity
The output end p on road (3)；
The other end earth of the other end of capacitor C5, the source electrode of NMOS tube M4 and capacitor C6, it is described that C6, which is grounded one end,
The input terminal q of switching power converters topological circuit (3).
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