CN111684682B - Micro-energy acquisition chip, micro-energy acquisition equipment and control method of micro-energy acquisition chip - Google Patents

Micro-energy acquisition chip, micro-energy acquisition equipment and control method of micro-energy acquisition chip Download PDF

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CN111684682B
CN111684682B CN202080000622.8A CN202080000622A CN111684682B CN 111684682 B CN111684682 B CN 111684682B CN 202080000622 A CN202080000622 A CN 202080000622A CN 111684682 B CN111684682 B CN 111684682B
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field effect
energy
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CN111684682A (en
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武文静
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The application belongs to the field of weak energy acquisition and discloses a micro energy acquisition chip, micro energy acquisition equipment and a control method thereof; charging through the first energy storage component to the third energy storage component according to the first micro-energy voltage; the first switch component turns off the connection between the power ground and the first signal ground according to the second control signal; the second field effect tube is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect tube is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component to the third energy storage component are sequentially connected in series to generate a first voltage doubling voltage; the first radio frequency component generates a first ground voltage according to the first voltage doubling voltage and outputs the first ground voltage from the ground terminal; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the weak energy collection threshold is reduced, and the energy utilization efficiency is improved.

Description

Micro-energy acquisition chip, micro-energy acquisition equipment and control method of micro-energy acquisition chip
Technical Field
The application belongs to the field of weak energy acquisition, and particularly relates to a micro energy acquisition chip, micro energy acquisition equipment and a control method of the micro energy acquisition chip.
Background
In the field of weak energy collection, the energy use efficiency is very low, taking a pressing collection circuit as an example, micro-energy alternating current is obtained through pressing, then micro-energy voltage is generated according to the micro-energy alternating current, and from 0V to the highest point in one period, the micro-energy voltage of the highest point is determined by the size of an energy storage capacitor. During the 0V up to 2V period, the chip (including the microprocessor and the rf chip) is inoperable.
The original parallel circuit or series circuit has only one system energy storage capacitor (about 2.2 UF), and the positive electrode of the system energy storage capacitor and the negative electrode of the system energy storage capacitor are respectively and electrically connected with the power supply positive end of the chip and the ground. After the system operating voltage is lower than about 2V, the microprocessor and the radio frequency chip stop working, so that residual charges exist in the system energy storage capacitor, micro-energy alternating current cannot be effectively utilized, and in principle, only charges stored between the highest voltage and 2V are used.
Therefore, the micro energy harvesting device has the defects that energy below the micro energy voltage cannot be utilized, so that the threshold value of weak energy harvesting is high and the energy use efficiency is low.
Disclosure of Invention
The application provides a micro-energy acquisition chip, micro-energy acquisition equipment and a control method thereof, and aims to solve the problems of high threshold value and low energy use efficiency of weak energy acquisition in the prior art.
The micro-energy acquisition chip is connected with a first energy storage component, a second energy storage component and a third energy storage component, and comprises a first switch component, a first radio frequency component, a first unidirectional conduction component, a second field effect transistor, a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a sixth field effect transistor, a seventh field effect transistor and an eighth field effect transistor;
the grid electrode of the second field effect tube and the grid electrode of the sixth field effect tube jointly form the fourth control end of the micro energy acquisition chip, the grid electrode of the seventh field effect tube and the grid electrode of the eighth field effect tube jointly form the fifth control end of the micro energy acquisition chip, the drain electrode of the third field effect tube, the drain electrode of the fifth field effect tube, the drain electrode of the seventh field effect tube, the negative electrode of the first unidirectional conduction component and the positive electrode of the second unidirectional conduction component jointly form the first capacitance end of the micro energy acquisition chip, the source electrode of the second field effect tube and the positive electrode of the first unidirectional conduction component jointly form a first voltage input end of the micro energy acquisition chip, the drain electrode of the second field effect tube and the first input and output end of the first switch component jointly form an analog ground end of the micro energy acquisition chip, the second input and output end of the first switch component and the drain electrode of the fourth field effect tube, the drain electrode of the sixth field effect tube and the drain electrode of the eighth field effect tube jointly form a power ground end of the micro energy acquisition chip, the source electrode of the fourth field effect tube and the source electrode of the third field effect tube jointly form a first voltage output end of the micro energy acquisition chip, the source electrode of the sixth field effect tube is connected with the source electrode of the fifth field effect tube and the radio frequency ground end of the first radio frequency component, the source electrode of the eighth field effect transistor is connected with the source electrode of the seventh field effect transistor and the data end of the first radio frequency component, and the power end of the first radio frequency component and the negative electrode of the second unidirectional conduction component jointly form a radio frequency power end of the micro energy acquisition chip;
The first end of the first energy storage component is connected with the first voltage input end of the micro energy acquisition chip, the first end of the third energy storage component is connected with the first capacitance end of the micro energy acquisition chip, the first end of the second energy storage component is connected with the radio frequency power supply end of the micro energy acquisition chip, the second end of the second energy storage component is connected with the first voltage output end of the micro energy acquisition chip, the second end of the third energy storage component and the analog ground end of the micro energy acquisition chip are commonly connected with a first signal ground, and the power ground end of the micro energy acquisition chip and the second end of the first energy storage component are commonly connected with a power ground;
the first unidirectional conduction component and the second unidirectional conduction component are both configured to unidirectional conduct a first micro-energy voltage; the first energy storage assembly, the second energy storage assembly, and the third energy storage assembly are all configured to charge according to the first micro-energy voltage; the first switch assembly is configured to turn off connection of the power ground and the first signal ground according to a second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect transistor is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to generate a first voltage doubling voltage; the first radio frequency component is configured to generate a first ground voltage according to the first voltage doubling voltage and output the first ground voltage from a ground terminal, and generate a first wireless communication signal according to a first data signal and transmit the first wireless communication signal from a wireless link; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip.
The embodiment of the application also provides a control method of the micro-energy acquisition chip, which comprises the following steps:
step A1: the first switch component is conducted so that the analog ground end of the micro-energy acquisition chip is connected with power ground; the first energy storage component charges according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component charges according to the first micro-energy voltage conducted by the first unidirectional conduction component and generates a third charging voltage; the fourth field effect transistor is conducted so that the second energy storage component charges according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component and generates a second charging voltage;
step A2: the micro-energy acquisition chip works according to the first micro-energy voltage which is unidirectionally conducted by the first unidirectional conduction component;
step A3: inputting a second control signal through a second control end of the micro energy acquisition chip to control the first switch assembly to be turned off so as to disconnect an analog ground end of the micro energy acquisition chip from a power supply ground; a first control end of the micro energy collection chip is controlled to input a first control signal, so that the potential of a first signal ground is equal to the potential of a first end of the first energy storage component, the potential of a second end of the third energy storage component is equal to the potential of the first end of the first energy storage component, the voltage of the first end of the third energy storage component is the sum of the third charging voltage and the first charging voltage, and the first control signal is of a low level; controlling a third control end of the micro energy collection chip to input a third control signal so that the potential of a second end of the second energy storage component is equal to the potential of a first capacitor end of the micro energy collection chip, and the potential of the second end of the second energy storage component is equal to the potential of a first end of a third energy storage component so that the voltage of the first end of the second energy storage component is equal to the sum of the third charging voltage, the first charging voltage and the second charging voltage to generate the first voltage doubling voltage, wherein the third control signal is in a high level; the first radio frequency component generates a first ground voltage according to the first voltage doubling voltage and outputs the first ground voltage from a ground terminal; inputting a fourth control signal through a fourth control end of the micro energy acquisition chip to control the sixth field effect transistor to communicate the first ground voltage to a power supply ground;
Step A4: the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip; the first radio frequency component generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from a wireless link.
The embodiment of the application also provides micro-energy collection equipment, which comprises a first energy storage component, a second energy storage component, a third energy storage component and the micro-energy collection chip.
The embodiments of the present application also provide another micro-energy harvesting chip,
the micro-energy acquisition chip comprises a first switch component, a first unidirectional conduction component, a second field effect transistor, a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a sixth field effect transistor, a seventh field effect transistor and an eighth field effect transistor;
the grid electrode of the second field effect tube and the grid electrode of the sixth field effect tube jointly form the fourth control end of the micro energy acquisition chip, the grid electrode of the seventh field effect tube and the grid electrode of the eighth field effect tube jointly form the fifth control end of the micro energy acquisition chip, the drain electrode of the third field effect tube, the drain electrode of the fifth field effect tube, the drain electrode of the seventh field effect tube, the negative electrode of the first unidirectional conduction component and the positive electrode of the second unidirectional conduction component jointly form the first capacitance end of the micro energy acquisition chip, the source electrode of the second field effect tube and the positive electrode of the first unidirectional conduction component jointly form a first voltage input end of the micro energy acquisition chip, the drain electrode of the second field effect tube and the first input and output end of the first switch component jointly form an analog ground end of the micro energy acquisition chip, the second input and output end of the first switch component and the drain electrode of the fourth field effect tube, the drain electrode of the sixth field effect tube and the drain electrode of the eighth field effect tube jointly form a power ground end of the micro energy acquisition chip, the source electrode of the fourth field effect tube and the source electrode of the third field effect tube jointly form a first voltage output end of the micro energy acquisition chip, the source electrode of the sixth field effect transistor and the source electrode of the fifth field effect transistor jointly form a second voltage input end of the micro energy acquisition chip, the source electrode of the eighth field effect transistor and the source electrode of the seventh field effect transistor jointly form a first data input and output end of the micro energy acquisition chip, and the negative electrode of the second unidirectional conduction component is a radio frequency power supply end of the micro energy acquisition chip;
The first end of the first energy storage component is connected with the first voltage input end of the micro energy collection chip, the first end of the third energy storage component is connected with the first capacitance end of the micro energy collection chip, the first end of the second energy storage component is connected with the radio frequency power end of the micro energy collection chip and the power end of the first radio frequency component, the second end of the second energy storage component is connected with the first voltage output end of the micro energy collection chip, the second voltage input end of the micro energy collection chip is connected with the radio frequency ground end of the first radio frequency component, the first data input and output end of the micro energy collection chip is connected with the data end of the first radio frequency component, the second end of the third energy storage component is commonly connected with the analog ground end of the micro energy collection chip to be connected with a first signal ground, and the power ground end of the micro energy collection chip and the second end of the first energy storage component are commonly connected with a power ground;
the first unidirectional conduction component and the second unidirectional conduction component are both configured to unidirectional conduct a first micro-energy voltage; the first energy storage assembly, the second energy storage assembly, and the third energy storage assembly are all configured to charge according to the first micro-energy voltage; the first switch assembly is configured to turn off connection of the power ground and the first signal ground according to a second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect transistor is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to generate a second voltage doubling voltage; the first radio frequency component is configured to generate a first ground voltage according to the second voltage doubling voltage and output the first ground voltage from a ground terminal, and generate a first wireless communication signal according to a first data signal and transmit the first wireless communication signal from a wireless link; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip.
The embodiment of the application also provides another control method of the micro-energy acquisition chip, which comprises the following steps:
step B1: the first switch component is conducted so that the analog ground end of the micro-energy acquisition chip is connected with power ground; the first energy storage component charges according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component charges according to the first micro-energy voltage conducted by the first unidirectional conduction component and generates a third charging voltage; the fourth field effect transistor is conducted so that the second energy storage component charges according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component and generates a second charging voltage;
step B2: the micro-energy acquisition chip works according to the first micro-energy voltage which is unidirectionally conducted by the first unidirectional conduction component;
step B3: inputting a second control signal through a second control end of the micro energy acquisition chip to control the first switch assembly to be turned off so as to disconnect an analog ground end of the micro energy acquisition chip from a power supply ground; a first control end of the micro energy collection chip is controlled to input a first control signal, so that the potential of a first signal ground is equal to the potential of a first end of the first energy storage component, the potential of a second end of the third energy storage component is equal to the potential of the first end of the first energy storage component, the voltage of the first end of the third energy storage component is the sum of the third charging voltage and the first charging voltage, and the first control signal is of a low level; controlling a third control end of the micro energy collection chip to input a third control signal so that the potential of a second end of the second energy storage component is equal to the potential of a first capacitor end of the micro energy collection chip, and the potential of the second end of the second energy storage component is equal to the potential of a first end of a third energy storage component so that the voltage of the first end of the second energy storage component is equal to the sum of the third charging voltage, the first charging voltage and the second charging voltage to generate the second voltage doubling voltage, wherein the third control signal is in a high level; the first radio frequency component generates a first ground voltage according to the second voltage doubling voltage and outputs the first ground voltage from a ground terminal; inputting a fourth control signal through a fourth control end of the micro energy acquisition chip to control the sixth field effect transistor to communicate the first ground voltage to a power supply ground;
Step B4: the seventh field effect transistor and the eighth field effect transistor generate the first data signal according to a first original data signal accessed by a fifth control end of the micro-energy acquisition chip; the first radio frequency component generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from a wireless link.
The embodiment of the application also provides another micro-energy collection device, which comprises a first energy storage component, a second energy storage component, a third energy storage component, a first unidirectional conduction component, a second unidirectional conduction component and the micro-energy collection chip.
The beneficial effects that this application provided technical scheme brought are: as can be seen from the above application, the first micro-energy voltage is unidirectionally conducted by the first unidirectionally conducting component and the second unidirectionally conducting component; the first energy storage component, the second energy storage component and the third energy storage component are charged according to the first micro-energy voltage; the first switch component turns off the connection between the power ground and the first signal ground according to the second control signal; the second field effect tube is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect tube is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to generate a first voltage doubling voltage; the first radio frequency component generates a first ground voltage according to the first voltage doubling voltage and outputs the first ground voltage from the ground terminal, generates a first wireless communication signal according to a first data signal and transmits the first wireless communication signal from a wireless link; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor and the eighth field effect transistor generate a first data signal according to a first original data signal accessed by a fifth control end of the micro-energy acquisition chip; the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to realize three times of voltage doubling bootstrap, so that the threshold value of weak energy collection is reduced, and the energy utilization efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a micro energy harvesting chip according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of another micro energy harvesting chip according to an embodiment of the present disclosure;
fig. 3 is a schematic circuit structure of a micro energy harvesting chip according to an embodiment of the present disclosure;
fig. 4 is a block diagram of a micro energy harvesting device according to a second embodiment of the present disclosure;
FIG. 5 is a block diagram of another micro energy harvesting device according to a second embodiment of the present disclosure;
FIG. 6 is a schematic diagram of an exemplary circuit of a micro-energy harvesting apparatus according to a second embodiment of the present disclosure;
fig. 7 is a block diagram of a micro energy harvesting chip according to a third embodiment of the present disclosure;
FIG. 8 is a block diagram of another micro energy harvesting chip according to the third embodiment of the present disclosure;
Fig. 9 is a schematic circuit structure diagram of a micro energy harvesting chip according to a third embodiment of the present disclosure;
fig. 10 is a block diagram of a micro energy harvesting apparatus according to a fourth embodiment of the present application;
FIG. 11 is a block diagram of another micro energy harvesting apparatus according to a fourth embodiment of the present disclosure;
fig. 12 is a circuit configuration diagram of an example of a micro energy harvesting apparatus according to a fourth embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
Example 1
Fig. 1 shows a module structure of a micro energy harvesting chip 01 according to the first embodiment of the present application, and for convenience of explanation, only the portions related to the first embodiment of the present application are shown, which are described in detail below:
the micro-energy acquisition chip 01 is connected with a first energy storage component 02, a second energy storage component 03 and a third energy storage component 04, and the micro-energy acquisition chip 01 comprises a first switch component 011, a first radio frequency component 012, a first unidirectional conduction component 05, a second unidirectional conduction component 06, a second field effect transistor M2, a third field effect transistor M3, a fourth field effect transistor M4, a fifth field effect transistor M5, a sixth field effect transistor M6, a seventh field effect transistor M7 and an eighth field effect transistor M8.
Wherein the grid electrode of the second field effect tube M2 and the grid electrode of the eighth field effect tube M8 form a fifth control end E of the micro energy collection chip 01 together, the drain electrode of the third field effect tube M3, the drain electrode of the fifth field effect tube M5, the drain electrode of the seventh field effect tube M7, the negative electrode of the first unidirectional conduction component 05 and the positive electrode of the second unidirectional conduction component 06 form a first capacitor end PC1 of the micro energy collection chip 01 together, the source electrode of the second field effect transistor M2 and the positive electrode of the first unidirectional conducting component 05 jointly form a first voltage input end P1.0 of the micro energy collection chip 01, the drain electrode of the second field effect transistor M2 and the first input and output end of the first switch component 011 jointly form an analog ground end AGND of the micro energy collection chip 01, the second input and output end of the first switch component 011 and the drain electrode of the fourth field effect transistor M4, the drain electrode of the sixth field effect transistor M6 and the drain electrode of the eighth field effect transistor M8 jointly form a power ground end GND of the micro energy collection chip 01, the source electrode of the fourth field effect transistor M4 and the source electrode of the third field effect transistor M3 jointly form a first voltage output end P2.0 of the micro energy collection chip 01, the source electrode of the sixth field effect transistor M6 is connected with the source electrode of the fifth field effect transistor M5 and the radio frequency ground end of the first radio frequency component 012, the source electrode of the eighth field effect transistor M8 is connected with the source electrode of the seventh field effect transistor M7 and the data end of the first radio frequency component 012, and the power end of the first radio frequency component 012 and the negative electrode of the second unidirectional conduction component 06 jointly form a radio frequency power end RFVDD of the micro-energy acquisition chip 01;
The first end of the first energy storage component 02 is connected with a first voltage input end P1.0 of the micro energy collection chip 01, the first end of the third energy storage component 04 is connected with a first capacitance end PC1 of the micro energy collection chip 01, the first end of the second energy storage component 03 is connected with a radio frequency power supply end RFVDD of the micro energy collection chip 01, the second end of the second energy storage component 03 is connected with a first voltage output end P2.0 of the micro energy collection chip 01, the second end of the third energy storage component 04 and an analog ground end AGND of the micro energy collection chip 01 are commonly connected with a first signal ground, and a power ground end GND of the micro energy collection chip 01 and a second end of the first energy storage component 02 are commonly connected with a power ground;
in the micro energy harvesting chip 01, the first unidirectional conduction component 05 and the second unidirectional conduction component 06 are configured to unidirectional conduct the first micro energy voltage; the first energy storage assembly 02, the second energy storage assembly 03, and the third energy storage assembly 04 are each configured to be charged according to a first micro-energy voltage; the first switching component 011 is configured to turn off the connection of the power ground and the first signal ground according to the second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end P1.0 of the micro energy acquisition chip 01 according to a first control signal, and the third field effect transistor is communicated with a first capacitance end PC1 of the micro energy acquisition chip 01 and a first voltage output end P2.0 of the micro energy acquisition chip 01 according to a third control signal so that the first energy storage component 02, the second energy storage component 03 and the third energy storage component 04 are sequentially connected in series to generate a first voltage doubling voltage; the first radio frequency component 012 is configured to generate a first ground voltage from the first voltage-doubling voltage and output the first ground voltage from the ground, and generate a first wireless communication signal from the first data signal and transmit the first wireless communication signal from the wireless link; the sixth field effect transistor M6 is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor M7 and the eighth field effect transistor M8 are both configured to generate a first data signal according to the first original data signal accessed by the fifth control end E of the micro energy harvesting chip 01.
As shown in fig. 2, the micro energy harvesting chip 01 further includes a first field effect transistor M1; the gate of the first fet M1 and the gate of the second fet M2 together form a first control terminal a of the micro energy collection chip 01, the drain of the first fet M1, the drain of the third fet M3, the drain of the fifth fet M5, the drain of the seventh fet M7, the negative electrode of the first unidirectional conductive component 05, and the positive electrode of the second unidirectional conductive component 06 together form a first capacitor terminal PC1 of the micro energy collection chip 01, and the source of the first fet M1, the source of the second fet M2, and the positive electrode of the first unidirectional conductive component 05 together form a first voltage input terminal P1.0 of the micro energy collection chip 01.
As shown in fig. 3, the first switching component 011 is a first depletion type fet JF1;
the grid electrode of the first depletion type field effect tube JF1 is a control end of a first switch component 011, the drain electrode of the first depletion type field effect tube JF1 is a first input and output end of the first switch component 011, and the source electrode of the first depletion type field effect tube JF1 is a second input and output end of the first switch component 011.
By way of example and not limitation, the fourth fet M4 is a depletion fet. The first unidirectional conductive component 05 is a first diode D1, and the second unidirectional conductive component 06 is a second diode D2.
The first switch component and the fourth field effect transistor M4 are depletion type field effect transistors, so when the micro energy collection chip 10 is in operation, the first switch component and the fourth field effect transistor M4 are both turned on, and when the micro energy collection chip 10 is in operation, the first energy storage component 11 and the second energy storage component 12 are charged according to the first micro energy voltage.
The first embodiment of the present application further provides a control method of the micro energy harvesting chip 01 shown in fig. 1, including:
step A1: the analog ground end AGND of the micro energy acquisition chip 01 is connected with the power ground GND through the conduction of the first switch component 011; the first energy storage component 02 is charged according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component 04 is charged according to the first micro-energy voltage conducted by the first unidirectional conduction component 05 to generate a third charging voltage; the fourth field effect transistor M4 is conducted so as to enable the second energy storage component 03 to charge according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component 06 and generate a second charging voltage;
step A2: the micro-energy acquisition chip 01 works according to the first micro-energy voltage conducted by the first unidirectional conduction component 05;
step A3: inputting a second control signal through a second control end B of the micro energy acquisition chip 01 to control the first switch assembly 011 to be turned off so as to disconnect an analog ground end AGND of the micro energy acquisition chip 01 from a power ground GND; the first control end A of the micro energy collection chip 01 is controlled to input a first control signal so that the potential of the first signal ground is equal to the potential of the first end of the first energy storage component 02, the potential of the second end of the third energy storage component 04 is equal to the potential of the first end of the first energy storage component 02, the voltage of the first end of the third energy storage component 04 is the sum of a third charging voltage and a first charging voltage, and the first control signal is of a low level; a third control signal is input to a third control end C of the micro energy collection chip 01 so that the potential of a second end of the second energy storage component 03 is equal to the potential of a first capacitor end PC1 of the micro energy collection chip 01, the potential of the second end of the second energy storage component 03 is equal to the potential of a first end of the third energy storage component 04, the voltage of the first end of the second energy storage component 03 is equal to the sum of a third charging voltage, a first charging voltage and a second charging voltage to generate a first voltage doubling voltage, and the third control signal is in a high level; the first radio frequency component 012 generates a first ground voltage according to the first voltage-multiplying voltage and outputs the first ground voltage from the ground; a fourth control signal is input through a fourth control end D of the micro energy acquisition chip 01 to control a sixth field effect transistor M6 to communicate the voltage of the first ground end to the power ground;
Step A4: the seventh field effect transistor M7 and the eighth field effect transistor M8 are both configured to generate a first data signal according to a first original data signal accessed by a fifth control end E of the micro-energy acquisition chip 01; the first radio frequency component 012 generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from the wireless link.
In summary, in the first embodiment of the application, the first energy storage component 02, the second energy storage component 03 and the third energy storage component 04 are sequentially connected in series to realize three times of voltage doubling bootstrap, so that the threshold value of weak energy collection is reduced, and the energy utilization efficiency is improved.
Example two
Fig. 4 shows a module structure of the micro energy collection device according to the second embodiment of the present application, and for convenience of explanation, only the portions related to the second embodiment of the present application are shown, which are described in detail below:
a micro energy harvesting device comprising a first energy storage assembly 02, a second energy storage assembly 03, a third energy storage assembly 04, and a micro energy harvesting chip 01 as described in example one.
As shown in fig. 5, the micro-energy harvesting device further comprises a first rectifying component 07. The first rectifying component 07 is connected to the first energy storage component 02, the micro energy collection chip 01, and the first unidirectional current conducting component 05, and is configured to generate a first micro energy voltage according to the first micro energy alternating current.
As shown in fig. 6, the first energy storage component 02 is a first capacitor C1, the second energy storage component 03 is a second capacitor C2, and the third energy storage component 04 is a third capacitor C3.
Example III
Fig. 7 shows a module structure of the micro energy harvesting chip 10 according to the third embodiment of the present application, and for convenience of explanation, only the portions related to the third embodiment of the present application are shown, which is described in detail below:
the micro energy collection chip 10 is connected with a first energy storage component 11, a second energy storage component 12, a third energy storage component 13 and a first radio frequency component 16, wherein the micro energy collection chip 10 comprises a first switch component 101, a first unidirectional conduction component 14, a second unidirectional conduction component 15, a second field effect transistor M2, a third field effect transistor M3, a fourth field effect transistor M4, a fifth field effect transistor M5, a sixth field effect transistor M6, a seventh field effect transistor M7 and an eighth field effect transistor M8.
Wherein the grid electrode of the second field effect tube M2 and the grid electrode of the eighth field effect tube M8 together form a fifth control end E of the micro energy collection chip 10, the drain electrode of the third field effect tube M3, the drain electrode of the fifth field effect tube M5, the drain electrode of the seventh field effect tube M7, the negative electrode of the first unidirectional conduction component 14 and the positive electrode of the second unidirectional conduction component 15 together form a first capacitance end PC1 of the micro energy collection chip 10, the source electrode of the second field effect transistor M2 and the positive electrode of the first unidirectional conduction component 14 jointly form a first voltage input end P1.0 of the micro energy collection chip 10, the drain electrode of the second field effect transistor M2 and the first input and output end of the first switch component 101 jointly form an analog ground end AGND of the micro energy collection chip 10, the second input and output end of the first switch component 101 and the drain electrode of the fourth field effect transistor M4, the drain electrode of the sixth field effect transistor M6 and the drain electrode of the eighth field effect transistor M8 jointly form a power ground end GND of the micro energy collection chip 10, the source electrode of the fourth field effect transistor M4 and the source electrode of the third field effect transistor M3 jointly form a first voltage output end P2.0 of the micro energy collection chip 10, the source electrode of the sixth field effect transistor M6 and the source electrode of the fifth field effect transistor M5 jointly form a second voltage input end P3.0 of the micro energy collection chip 10, the source electrode of the eighth field effect transistor M8 and the source electrode of the seventh field effect transistor M7 jointly form a first data input/output end P4.0 of the micro-energy acquisition chip 10, and the negative electrode of the second unidirectional conduction component 15 is a radio frequency power supply end RFVDD of the micro-energy acquisition chip;
The first end of the first energy storage component 11 is connected with a first voltage input end P1.0 of the micro energy collection chip 10, the first end of the third energy storage component 13 is connected with a first capacitance end PC1 of the micro energy collection chip 10, the first end of the second energy storage component 12 is connected with a radio frequency power supply end RFVDD of the micro energy collection chip and a power supply end of the first radio frequency component 16, the second end of the second energy storage component 12 is connected with a first voltage output end P2.0 of the micro energy collection chip 10, a second voltage input end P3.0 of the micro energy collection chip 10 is connected with a radio frequency ground end of the first radio frequency component, a first data input output end P4.0 of the micro energy collection chip 10 is connected with a data end of the first radio frequency component, a second end of the third energy storage component 13 is commonly connected with an analog ground end AGND of the micro energy collection chip 10 to a first signal ground, and a power supply ground end GND of the micro energy collection chip 10 and a second end of the first energy storage component 11 are commonly connected to a power supply ground;
in the micro energy harvesting chip 10 described above, the first unidirectional conduction component 14 and the second unidirectional conduction component 15 are both configured to unidirectional conduct the first micro energy voltage; the first energy storage assembly 11, the second energy storage assembly 12 and the third energy storage assembly 13 are all configured to be charged according to a first micro-energy voltage; the first switch assembly 101 is configured to turn off the connection of the power ground and the first signal ground according to the second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end P1.0 of the micro energy acquisition chip 10 according to a first control signal, and the third field effect transistor is communicated with a first capacitance end PC1 of the micro energy acquisition chip 10 and a first voltage output end P2.0 of the micro energy acquisition chip 10 according to a third control signal so that the first energy storage component 11, the second energy storage component 12 and the third energy storage component 13 are sequentially connected in series to generate a second voltage doubling voltage; the first radio frequency component 16 is configured to generate a first ground voltage from the second voltage multiplier voltage and output the first ground voltage from the ground, and to generate a first wireless communication signal from the first data signal and transmit the first wireless communication signal from the wireless link; the sixth field effect transistor M6 is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh fet M7 and the eighth fet M8 are each configured to generate a first data signal according to a first raw data signal accessed by the fifth control terminal E of the micro energy harvesting chip 10.
As shown in fig. 8, the micro energy harvesting chip 10 further includes a first fet M1; the gate of the first fet M1 and the gate of the second fet M2 together form the first control terminal a of the micro energy collection chip 10, the drain of the first fet M1, the drain of the third fet M3, the drain of the fifth fet M5, the drain of the seventh fet M7, the negative electrode of the first unidirectional conductive component 14, and the positive electrode of the second unidirectional conductive component 15 together form the first capacitor terminal PC1 of the micro energy collection chip 10, and the source of the first fet M1, the source of the second fet M2, and the positive electrode of the first unidirectional conductive component 14 together form the first voltage input terminal P1.0 of the micro energy collection chip 10.
As shown in fig. 9, the first switching element is a second depletion type fet JF2;
the gate of the second depletion type field effect transistor JF2 is the control end of the first switch component 101, the drain of the second depletion type field effect transistor JF2 is the first input and output end of the first switch component 101, and the source of the second depletion type field effect transistor JF2 is the second input and output end of the first switch component 101.
By way of example and not limitation, fourth fet M4 is a depletion fet first unidirectional current conducting component 14 is a seventh diode D7 and second unidirectional current conducting component 15 is an eighth diode D8.
The first switch component and the fourth field effect transistor M4 are depletion type field effect transistors, so when the micro energy collection chip 10 is in operation, the first switch component and the fourth field effect transistor M4 are both turned on, and when the micro energy collection chip 10 is in operation, the first energy storage component 11 and the second energy storage component 12 are charged according to the first micro energy voltage.
The third embodiment of the present application further provides a control method of the micro energy harvesting chip 10 shown in fig. 7, including:
step B1: the first switch component 101 is conducted to enable the analog ground end AGND of the micro energy acquisition chip 10 to be connected with the power ground GND; the first energy storage component 11 charges according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component 13 charges according to the first micro-energy voltage conducted by the first unidirectional conduction component 14 to generate a third charging voltage; the fourth field effect transistor M4 is conducted to enable the second energy storage component 12 to charge according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component 15 and generate a second charging voltage;
step B2: the micro energy acquisition chip 10 works according to the first micro energy voltage conducted by the first unidirectional conduction component 14;
step B3: inputting a second control signal through a second control end B of the micro energy acquisition chip 10 to control the first switch assembly 101 to be turned off so as to disconnect an analog ground end AGND of the micro energy acquisition chip 10 from a power ground GND; the first control end A of the micro energy collection chip 10 is controlled to input a first control signal so that the potential of the first signal ground is equal to the potential of the first end of the first energy storage component 11, the potential of the second end of the third energy storage component 13 is equal to the potential of the first end of the first energy storage component 11, the voltage of the first end of the third energy storage component 13 is the sum of a third charging voltage and a first charging voltage, and the first control signal is in a low level; a third control signal is input to a third control end C of the micro energy collection chip 10 so that the potential of a second end of the second energy storage component is equal to the potential of a first capacitor end of the micro energy collection chip 10, the potential of a second end of the second energy storage component 12 is equal to the potential of a first end of the third energy storage component 13, the voltage of the first end of the second energy storage component 12 is equal to the sum of a third charging voltage, a first charging voltage and a second charging voltage to generate a second voltage doubling voltage, and the third control signal is in a high level; the first rf component 16 generates a first ground voltage according to the second voltage-multiplying voltage and outputs the first ground voltage from the ground; a fourth control signal is input through a fourth control end D of the micro energy acquisition chip 10 to control a sixth field effect transistor M6 to communicate the voltage of the first ground end to the power ground;
Step B4: the seventh field effect transistor M7 and the eighth field effect transistor M8 generate a first data signal according to a first original data signal accessed by a fifth control end E of the micro-energy acquisition chip 10; the first radio frequency component 16 generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from the wireless link.
In summary, in the embodiment of the application, three times of voltage doubling bootstrap is realized by sequentially connecting the first energy storage component 11, the second energy storage component 12 and the third energy storage component 13 in series, so that the threshold value of weak energy collection is reduced, and the energy utilization efficiency is improved.
Example IV
Fig. 10 shows a module structure of the micro energy harvesting apparatus according to the fourth embodiment of the present application, and for convenience of explanation, only the portions related to the fourth embodiment of the present application are shown, and the details are as follows:
a micro energy harvesting device comprising a first energy storage assembly 11, a second energy storage assembly 12, a third energy storage assembly 13, and a micro energy harvesting chip 10 as described in example three.
As shown in fig. 11, the micro-energy harvesting device further comprises a first rectifying component 17. The first rectifying component 17 is connected to the first energy storage component 11, the micro energy harvesting chip 10, and the first unidirectional conductive component 14, and is configured to generate a first micro energy voltage according to the first micro energy ac.
As shown in fig. 12, the first energy storage component 11 is a fourth capacitor C4, the second energy storage component 12 is a fifth capacitor C5, and the third energy storage component 13 is a sixth capacitor C6.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (12)

1. The micro energy acquisition chip is characterized by being connected with a first energy storage component, a second energy storage component and a third energy storage component, and comprises a first switch component, a first radio frequency component, a first unidirectional conduction component, a second field effect transistor, a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a sixth field effect transistor, a seventh field effect transistor and an eighth field effect transistor;
the grid electrode of the second field effect tube and the grid electrode of the sixth field effect tube jointly form the fourth control end of the micro energy acquisition chip, the grid electrode of the seventh field effect tube and the grid electrode of the eighth field effect tube jointly form the fifth control end of the micro energy acquisition chip, the drain electrode of the third field effect tube, the drain electrode of the fifth field effect tube, the drain electrode of the seventh field effect tube, the negative electrode of the first unidirectional conduction component and the positive electrode of the second unidirectional conduction component jointly form the first capacitance end of the micro energy acquisition chip, the source electrode of the second field effect tube and the positive electrode of the first unidirectional conduction component jointly form a first voltage input end of the micro energy acquisition chip, the drain electrode of the second field effect tube and the first input and output end of the first switch component jointly form an analog ground end of the micro energy acquisition chip, the second input and output end of the first switch component and the drain electrode of the fourth field effect tube, the drain electrode of the sixth field effect tube and the drain electrode of the eighth field effect tube jointly form a power ground end of the micro energy acquisition chip, the source electrode of the fourth field effect tube and the source electrode of the third field effect tube jointly form a first voltage output end of the micro energy acquisition chip, the source electrode of the sixth field effect tube is connected with the source electrode of the fifth field effect tube and the radio frequency ground end of the first radio frequency component, the source electrode of the eighth field effect transistor is connected with the source electrode of the seventh field effect transistor and the data end of the first radio frequency component, and the power end of the first radio frequency component and the negative electrode of the second unidirectional conduction component jointly form a radio frequency power end of the micro energy acquisition chip;
The first end of the first energy storage component is connected with the first voltage input end of the micro energy acquisition chip, the first end of the third energy storage component is connected with the first capacitance end of the micro energy acquisition chip, the first end of the second energy storage component is connected with the radio frequency power supply end of the micro energy acquisition chip, the second end of the second energy storage component is connected with the first voltage output end of the micro energy acquisition chip, the second end of the third energy storage component and the analog ground end of the micro energy acquisition chip are commonly connected with a first signal ground, and the power ground end of the micro energy acquisition chip and the second end of the first energy storage component are commonly connected with a power ground;
the first unidirectional conduction component and the second unidirectional conduction component are both configured to unidirectional conduct a first micro-energy voltage; the first energy storage assembly, the second energy storage assembly, and the third energy storage assembly are all configured to charge according to the first micro-energy voltage; the first switch assembly is configured to turn off connection of the power ground and the first signal ground according to a second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect transistor is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to generate a first voltage doubling voltage; the first radio frequency component is configured to generate a first ground voltage according to the first voltage doubling voltage and output the first ground voltage from a ground terminal, and generate a first wireless communication signal according to a first data signal and transmit the first wireless communication signal from a wireless link; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip;
The first unidirectional conduction component is a first diode.
2. The micro-energy harvesting chip of claim 1, wherein the first switching component is a first depletion field effect transistor;
the grid electrode of the first depletion type field effect tube is a control end of the first switch component, the drain electrode of the first depletion type field effect tube is a first input and output end of the first switch component, and the source electrode of the first depletion type field effect tube is a second input and output end of the first switch component.
3. The micro-energy harvesting chip of claim 2, wherein the fourth fet is a depletion fet.
4. A method of controlling a micro energy harvesting chip according to claim 1, comprising:
step A1: the first switch component is conducted so that the analog ground end of the micro-energy acquisition chip is connected with power ground; the first energy storage component charges according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component charges according to the first micro-energy voltage conducted by the first unidirectional conduction component and generates a third charging voltage; the fourth field effect transistor is conducted so that the second energy storage component charges according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component and generates a second charging voltage;
Step A2: the micro-energy acquisition chip works according to the first micro-energy voltage which is unidirectionally conducted by the first unidirectional conduction component;
step A3: inputting a second control signal through a second control end of the micro energy acquisition chip to control the first switch assembly to be turned off so as to disconnect an analog ground end of the micro energy acquisition chip from a power supply ground; a first control end of the micro energy collection chip is controlled to input a first control signal, so that the potential of a first signal ground is equal to the potential of a first end of the first energy storage component, the potential of a second end of the third energy storage component is equal to the potential of the first end of the first energy storage component, the voltage of the first end of the third energy storage component is the sum of the third charging voltage and the first charging voltage, and the first control signal is of a low level; controlling a third control end of the micro energy collection chip to input a third control signal so that the potential of a second end of the second energy storage component is equal to the potential of a first capacitor end of the micro energy collection chip, and the potential of the second end of the second energy storage component is equal to the potential of a first end of a third energy storage component so that the voltage of the first end of the second energy storage component is equal to the sum of the third charging voltage, the first charging voltage and the second charging voltage to generate the first voltage doubling voltage, wherein the third control signal is in a high level; the first radio frequency component generates a first ground voltage according to the first voltage doubling voltage and outputs the first ground voltage from a ground terminal; inputting a fourth control signal through a fourth control end of the micro energy acquisition chip to control the sixth field effect transistor to communicate the first ground voltage to a power supply ground;
Step A4: the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip; the first radio frequency component generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from a wireless link.
5. A micro energy harvesting device comprising a first energy storage assembly, a second energy storage assembly, a third energy storage assembly, and a micro energy harvesting chip according to any one of claims 1 to 3.
6. The micro energy harvesting device of claim 5, wherein the micro energy harvesting device further comprises:
and the first rectifying component is connected with the first energy storage component, the micro-energy acquisition chip and the first unidirectional conduction component and is configured to generate the first micro-energy voltage according to first micro-energy alternating current.
7. The micro energy acquisition chip is characterized by being connected with a first energy storage component, a second energy storage component, a third energy storage component and a first radio frequency component, and comprises a first switch component, a first unidirectional conduction component, a second field effect transistor, a third field effect transistor, a fourth field effect transistor, a fifth field effect transistor, a sixth field effect transistor, a seventh field effect transistor and an eighth field effect transistor;
The grid electrode of the third field effect tube and the grid electrode of the fourth field effect tube jointly form a third control end of the micro energy acquisition chip, the control end of the first switch component is a second control end of the micro energy acquisition chip, the grid electrode of the fifth field effect tube and the grid electrode of the sixth field effect tube jointly form a fourth control end of the micro energy acquisition chip, the grid electrode of the seventh field effect tube and the grid electrode of the eighth field effect tube jointly form a fifth control end of the micro energy acquisition chip, the drain electrode of the third field effect tube, the drain electrode of the fifth field effect tube, the drain electrode of the seventh field effect tube, the negative electrode of the first unidirectional conduction component and the positive electrode of the second unidirectional conduction component jointly form a first capacitance end of the micro energy acquisition chip, the source electrode of the second field effect tube and the positive electrode of the first unidirectional conduction component jointly form a first voltage input end of the micro energy acquisition chip, the drain electrode of the second field effect tube and the first input and output end of the first switch component jointly form an analog ground end of the micro energy acquisition chip, the second input and output end of the first switch component and the drain electrode of the fourth field effect tube, the drain electrode of the sixth field effect tube and the drain electrode of the eighth field effect tube jointly form a power ground end of the micro energy acquisition chip, the source electrode of the fourth field effect tube and the source electrode of the third field effect tube jointly form a first voltage output end of the micro energy acquisition chip, the source electrode of the sixth field effect transistor and the source electrode of the fifth field effect transistor jointly form a second voltage input end of the micro energy acquisition chip, the source electrode of the eighth field effect transistor and the source electrode of the seventh field effect transistor jointly form a first data input and output end of the micro energy acquisition chip, and the negative electrode of the second unidirectional conduction component is a radio frequency power supply end of the micro energy acquisition chip;
The first end of the first energy storage component is connected with the first voltage input end of the micro energy collection chip, the first end of the third energy storage component is connected with the first capacitance end of the micro energy collection chip, the first end of the second energy storage component is connected with the radio frequency power end of the micro energy collection chip and the power end of the first radio frequency component, the second end of the second energy storage component is connected with the first voltage output end of the micro energy collection chip, the second voltage input end of the micro energy collection chip is connected with the radio frequency ground end of the first radio frequency component, the first data input and output end of the micro energy collection chip is connected with the data end of the first radio frequency component, the second end of the third energy storage component is commonly connected with the analog ground end of the micro energy collection chip to be connected with a first signal ground, and the power ground end of the micro energy collection chip and the second end of the first energy storage component are commonly connected with a power ground;
the first unidirectional conduction component and the second unidirectional conduction component are both configured to unidirectional conduct a first micro-energy voltage; the first energy storage assembly, the second energy storage assembly, and the third energy storage assembly are all configured to charge according to the first micro-energy voltage; the first switch assembly is configured to turn off connection of the power ground and the first signal ground according to a second control signal; the second field effect transistor is communicated with a first signal ground and a first voltage input end of the micro energy acquisition chip according to a first control signal, and the third field effect transistor is communicated with a first capacitance end of the micro energy acquisition chip and a first voltage output end of the micro energy acquisition chip according to a third control signal so that the first energy storage component, the second energy storage component and the third energy storage component are sequentially connected in series to generate a second voltage doubling voltage; the first radio frequency component is configured to generate a first ground voltage according to the second voltage doubling voltage and output the first ground voltage from a ground terminal, and generate a first wireless communication signal according to a first data signal and transmit the first wireless communication signal from a wireless link; the sixth field effect transistor is communicated with the first ground voltage to the power ground according to a fourth control signal; the seventh field effect transistor and the eighth field effect transistor are configured to generate the first data signal according to a first original data signal accessed by a fifth control end of the micro energy acquisition chip;
The first unidirectional conduction component is a seventh diode.
8. The micro-energy harvesting chip of claim 7, wherein the first switching component is a second depletion field effect transistor;
the grid electrode of the second depletion type field effect transistor is the control end of the first switch component, the drain electrode of the second depletion type field effect transistor is the first input and output end of the first switch component, and the source electrode of the second depletion type field effect transistor is the second input and output end of the first switch component.
9. The micro-power harvesting chip of claim 8, wherein the fourth fet is a depletion fet.
10. A method of controlling a micro energy harvesting chip according to claim 7, comprising:
step B1: the first switch component is conducted so that the analog ground end of the micro-energy acquisition chip is connected with power ground; the first energy storage component charges according to the first micro-energy voltage to generate a first charging voltage, and the third energy storage component charges according to the first micro-energy voltage conducted by the first unidirectional conduction component and generates a third charging voltage; the fourth field effect transistor is conducted so that the second energy storage component charges according to the first micro-energy voltage which is conducted in one way by the second unidirectional conduction component and generates a second charging voltage;
Step B2: the micro-energy acquisition chip works according to the first micro-energy voltage which is unidirectionally conducted by the first unidirectional conduction component;
step B3: inputting a second control signal through a second control end of the micro energy acquisition chip to control the first switch assembly to be turned off so as to disconnect an analog ground end of the micro energy acquisition chip from a power supply ground; a first control end of the micro energy collection chip is controlled to input a first control signal, so that the potential of a first signal ground is equal to the potential of a first end of the first energy storage component, the potential of a second end of the third energy storage component is equal to the potential of the first end of the first energy storage component, the voltage of the first end of the third energy storage component is the sum of the third charging voltage and the first charging voltage, and the first control signal is of a low level; controlling a third control end of the micro energy collection chip to input a third control signal so that the potential of a second end of the second energy storage component is equal to the potential of a first capacitor end of the micro energy collection chip, and the potential of the second end of the second energy storage component is equal to the potential of a first end of a third energy storage component so that the voltage of the first end of the second energy storage component is equal to the sum of the third charging voltage, the first charging voltage and the second charging voltage to generate the second voltage doubling voltage, wherein the third control signal is in a high level; the first radio frequency component generates a first ground voltage according to the second voltage doubling voltage and outputs the first ground voltage from a ground terminal; inputting a fourth control signal through a fourth control end of the micro energy acquisition chip to control the sixth field effect transistor to communicate the first ground voltage to a power supply ground;
Step B4: the seventh field effect transistor and the eighth field effect transistor generate the first data signal according to a first original data signal accessed by a fifth control end of the micro-energy acquisition chip; the first radio frequency component generates a first wireless communication signal from the first data signal and transmits the first wireless communication signal from a wireless link.
11. A micro-energy harvesting device comprising a first energy storage assembly, a second energy storage assembly, a third energy storage assembly, a first unidirectional conductive assembly and a second unidirectional conductive assembly, and a micro-energy harvesting chip as claimed in any one of claims 7 to 9.
12. The micro energy harvesting device of claim 11, wherein the micro energy harvesting device further comprises:
and the first rectifying component is connected with the first energy storage component, the micro-energy acquisition chip and the first unidirectional conduction component and is configured to generate the first micro-energy voltage according to first micro-energy alternating current.
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