CN105743392A - Booster circuit-based miniature thermoelectric generator - Google Patents
Booster circuit-based miniature thermoelectric generator Download PDFInfo
- Publication number
- CN105743392A CN105743392A CN201610172686.1A CN201610172686A CN105743392A CN 105743392 A CN105743392 A CN 105743392A CN 201610172686 A CN201610172686 A CN 201610172686A CN 105743392 A CN105743392 A CN 105743392A
- Authority
- CN
- China
- Prior art keywords
- booster circuit
- energy
- connects
- outfan
- electrochemical capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- 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
- H02J15/00—Systems for storing electric energy
-
- 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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
Abstract
The invention discloses a booster circuit-based miniature thermoelectric generator, which comprises a thermoelectric electric energy collector and a power energy management circuit, wherein the thermoelectric electric energy collector and the power energy management circuit are sequentially connected. With the thermoelectric generator as an energy source and an ultra-low power energy management chip BQ25504 of Texas instruments as a DC-DC boost converter, energy can be collected from an 80mV energy source; maximum power point tracking control on the energy source is achieved by a peripheral circuit; the energy is stored by combining an energy buffer when necessary; and effective collection and utilization of miniature thermoelectric energy are achieved through an MIC841N dual-voltage comparator and a TPS78001 ultra-low dropout linear voltage stabilizer.
Description
Technical field
The present invention relates to a kind of electric organ control system, particularly relate to a kind of thermoelectric micro-generators based on booster circuit, belong to Generation Control field.
Background technology
In the case of the whole world faces the serious problems such as energy scarcity, climate warming, the mankind are for survival and development then look for and utilize clean energy technology.Clean energy resource includes solar energy, wind energy, heat energy, vibrational energy, ocean energy, and other energy such as body kinetic energy, biochemical energy homenergic.Along with the development of science and technology, wireless sensor network technology has penetrated into the every aspect of human being's production and life.Wireless communication networks the most progressively develops into can be for the Internet of Things communicated at any time, everywhere between anyone and object, the very fast expansion of scale of network, but meanwhile overall stability and the sustainable development of Internet of Things are more and more prominent.Meanwhile, in order to meet the needs of human lives, increasing sensor needs to be placed in the uninhabited or area of bad environments, these area rugged environments determine people and chemical cell cannot be used to be that wireless sensor node is powered, because changing chemical cell in these areas is often a unlikely thing.Just because of these reasons, the present invention just expects that using regenerative resource is that wireless communication node energy supply is to solve these problems.
Such as a kind of Portable miniature temperature difference electric generator of application number " 200920126143.1 ", including fuel storage tank and least one set temperature-difference power generation module；Often group temperature-difference power generation module is made up of the temperature-difference power generation module of two pieces of overlappings；Described two pieces of temperature-difference power generation module adjacent walls are provided with catalytic combustion heat source channels, and described two pieces of temperature-difference power generation module opposite sides are respectively equipped with fuel preheating passage；I.e. catalytic combustion heat source channels is positioned at the hot junction of temperature-difference power generation module；Described fuel preheating passage is positioned at the cold end of temperature-difference power generation module；Described catalysis burning gallery is serpentine channel, and its air inlet is connected with fuel preheating passage, and its outlet is waste discharge mouth；Fuel preheating passage is connected with fuel storage tank.It uses catalysis burning to be temperature-difference power generation module heat supply, can realize smokeless combustion at a lower temperature, and safety is high；This temperature difference electricity generation device has simple in construction, lightweight, easy to carry, and specific energy is high, can the feature such as long period work.The most convenient for individual soldier's power supply and field use.
And for example a kind of micro thermoelectric device of Application No. " 201310232020.7 ", manufacture method and include its thermal generator.This micro thermoelectric device includes: first substrate, is provided with the first electrode layer of patterning；First barrier layer, is arranged on the first electrode layer；Silicon dioxide layer, is arranged on first substrate and the first barrier layer；Thermoelement, is arranged in silicon dioxide layer；Second barrier layer of patterning, is arranged on silicon dioxide layer and thermoelement；The second electrode lay, is arranged on the second barrier layer of patterning；And second substrate, arrange on the second electrode layer.The structure of micro thermoelectric device that this invention provides is suitable to quasiconductor integrated technique technology, solves and is difficult to extensive precision machined problem present in current micron order thermo-electric device industrialization process.
Summary of the invention
The technical problem to be solved is that the deficiency for background technology provides a kind of simple in construction it can utilize the thermoelectric micro-generators of thermo-electric generation.
The present invention solves above-mentioned technical problem by the following technical solutions:
A kind of thermoelectric micro-generators based on booster circuit, comprise temperature difference power collector, the power supply energy management circuit being sequentially connected with, described power supply energy management circuit comprises MPPT module, electric energy output interface, booster circuit and energy buffer, and described energy buffer comprises storage capacitor, comparator and manostat；The outfan of described MPPT module connects the input of electric energy output interface, the outfan of described electric energy output interface connects the input of booster circuit, the outfan of described booster circuit connects the input of manostat, and the input of described comparator and storage capacitor is connected between booster circuit and manostat；
Described booster circuit comprises changer, inductance, stabilivolt, first electrochemical capacitor, second electrochemical capacitor, first resistance and the second resistance, the positive pole of the first electrochemical capacitor connects one end of inductance and the outfan of electric energy output interface respectively, the other end of inductance connects one end of the first resistance, the other end of the first resistance connects the positive pole of stabilivolt and the input of changer respectively, the negative pole of stabilivolt connects the positive pole of the second electrochemical capacitor respectively, the outfan of changer and the normal-closed end of switch, it is connected with energy buffer after the movable end of switch and the second resistant series, the negative pole of the first electrochemical capacitor, the negative pole of the second electrochemical capacitor, the earth terminal of changer is connected to ground.
As the further preferred scheme of a kind of thermoelectric micro-generators based on booster circuit of the present invention, described temperature difference power collector uses thermo-electric conversion chip.
As the further preferred scheme of a kind of thermoelectric micro-generators based on booster circuit of the present invention, the chip model of described storage capacitor is RD1E477M1012MPA.
As the further preferred scheme of a kind of thermoelectric micro-generators based on booster circuit of the present invention, the chip model of described comparator is MIC841N.
As the further preferred scheme of a kind of thermoelectric micro-generators based on booster circuit of the present invention, the chip model of described manostat is TPS78001.
The present invention uses above technical scheme compared with prior art, has following technical effect that
The present invention is using thermoelectric micro-generators as energy source, achieving using the super low-power consumption energy management chip BQ25504 of Texas Instruments as DC-DC boost converter can be from the energy source collecting energy of as little as 80mV, and utilize peripheral circuit to realize the control of the MPPT maximum power point tracking to energy source, and combine energy buffer and store energy when necessary, then by MIC841N twin voltage comparator and TPS78001 linear voltage stabilizer with ultra low differential pressure, it is achieved that effectively gathering and utilization of miniature temperature difference energy.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of the present invention；
Fig. 2 is booster circuit circuit diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings technical scheme is described in further detail:
As shown in Figure 1, a kind of thermoelectric micro-generators based on booster circuit, comprise temperature difference power collector, the power supply energy management circuit being sequentially connected with, described power supply energy management circuit comprises MPPT module, electric energy output interface, booster circuit and energy buffer, and described energy buffer comprises storage capacitor, comparator and manostat；The outfan of described MPPT module connects the input of electric energy output interface, the outfan of described electric energy output interface connects the input of booster circuit, the outfan of described booster circuit connects the input of manostat, and the input of described comparator and storage capacitor is connected between booster circuit and manostat；
As shown in Figure 2, described booster circuit comprises changer, inductance, stabilivolt, first electrochemical capacitor, second electrochemical capacitor, first resistance and the second resistance, the positive pole of the first electrochemical capacitor connects one end of inductance and the outfan of electric energy output interface respectively, the other end of inductance connects one end of the first resistance, the other end of the first resistance connects the positive pole of stabilivolt and the input of changer respectively, the negative pole of stabilivolt connects the positive pole of the second electrochemical capacitor respectively, the outfan of changer and the normal-closed end of switch, it is connected with energy buffer after the movable end of switch and the second resistant series, the negative pole of the first electrochemical capacitor, the negative pole of the second electrochemical capacitor, the earth terminal of changer is connected to ground.
Wherein, described temperature difference power collector uses thermo-electric conversion chip, and the chip model of described storage capacitor is RD1E477M1012MPA, and the chip model of described comparator is MIC841N, and the chip model of described manostat is TPS78001.
The present invention is using thermoelectric micro-generators as energy source, achieving using the super low-power consumption energy management chip BQ25504 of Texas Instruments as DC-DC boost converter can be from the energy source collecting energy of as little as 80mV, and utilize peripheral circuit to realize the control of the MPPT maximum power point tracking to energy source, and combine energy buffer and store energy when necessary, then by MIC841N twin voltage comparator and TPS78001 linear voltage stabilizer with ultra low differential pressure, it is achieved that effectively gathering and utilization of miniature temperature difference energy.
The transmitting terminal structure of the wireless sensor network node that thermoelectric micro-generators is powered by temperature difference power collector, there is the booster circuit of MPPT function, energy buffer and system load (wireless sensor node) form.Temperature difference power collector is made up of thermo-electric conversion chip, can be according to the size of actual application places and how many decision thermo-electric conversion chip list sizes of required electric energy and the number of plies of superposition, in order to meet different applied environments.
Power management integrated circuit is mainly made up of MPPT maximum power point tracking module (MPPT), electric energy output interface, booster circuit (DC-DC boost module), energy buffer.Wherein energy buffer circuit is made up of storage capacitor, comparator circuit and voltage regulator circuit.Load mainly includes processing the data that sensor acquisition arrives, and is launched by wireless transmitter module.
BQ25504 power management chip mainly achieves and draws energy with super low-power consumption from heat energy modular converter.BQ25504 is 16 pins, the efficient energy managing chip of 3mm*3mm subpackage, and 16 pins are distributed the most counterclockwise, and the present invention is by reasonably applying the corresponding function of these pins, it is achieved that the high-efficiency management of miniature energy.In addition, a remarkable advantage of this chip is to have ultralow work to start voltage, and this makes it can extract energy when steady operation from the energy source of as little as 80mv, and extra low voltage is carried out boost conversion, in order to subsequent conditioning circuit carries out storage and uses.The peripheral circuit of appropriate mix achieves the MPPT maximum power point tracking gathering electric energy from ultra low power energy source, and this automatically supplies system for miniature temperature difference energy vital effect.Set overvoltage and under-voltage circuit protection by peripheral circuit, it is ensured that the steady operation of chip simultaneously.
MIC841N is the twin voltage comparator with internal reference voltage of a super low-power consumption.The present invention by arrange its voltage ratio compared with upper and lower bound drive linear voltage regulator below.The feature of its work is, by the voltage on constantly detection pin VDD, and compare with the running voltage of setting on pin LTH and HTH, so that it is determined that the height of the voltage (i.e. the output signal of pin OUT) of output, and then control the duty of manostat TPS78001.
TPS78001 is the super low-power consumption manostat that TI produces, it can realize the pressure stabilization function of circuit output voltage, by arranging the resistance parameter of corresponding peripheral circuit, output can be made to obtain a stable voltage, thus can be stably driven with wireless senser transmitting node below.
MPPT is a kind of technology maximally utilizing the produced electric energy of electric organ.The present invention is by the output voltage of the temperature difference chip of certain electrical module regulation thermoelectric micro-generators, thus realizes the maximization of thermoelectric generator output.According to the output characteristic curve of known thermoelectric micro-generators, the output of maximum can be obtained when the 50% of the voltage approximately equal to open-circuit voltage of output.The technology extracting peak power from TEG the most dynamically changes DC/DC converter switch frequency, the present invention utilizes BQ25504 to have employed resistance ratio dividing potential drop method according to this characteristic and achieves the half that output voltage is open-circuit voltage, and then achieves the maximization of output.
In a word, a kind of thermoelectric micro-generators based on booster circuit, comprise the temperature difference power collector being sequentially connected with, power supply energy management circuit, described power management circuit comprises MPPT module, electric energy output interface, booster circuit and energy buffer, described energy buffer comprises storage capacitor, comparator and manostat, the outfan of described MPPT module connects the input of electric energy output interface, the outfan of described electric energy output interface connects the input of booster circuit, the outfan of described booster circuit connects the input of manostat, described comparator and storage capacitor are connected between booster circuit and manostat.
The present invention achieves the function of wireless sensor network by efficient collection of energy and effective energy management, becomes real energy and automatically supplies wireless sensor system, has also conformed to the green wireless demand for development of present Communication in China industry simultaneously,.
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein (including technical term and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that those terms defined in such as general dictionary should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or the most formal implication.
Above example is only the technological thought that the present invention is described, it is impossible to limiting protection scope of the present invention with this, every technological thought proposed according to the present invention, any change done on the basis of technical scheme, within each falling within scope.Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible to make a variety of changes on the premise of or else departing from present inventive concept.
Claims (5)
1. a thermoelectric micro-generators based on booster circuit, it is characterized in that: comprise temperature difference power collector, the power supply energy management circuit being sequentially connected with, described power supply energy management circuit comprises MPPT module, electric energy output interface, booster circuit and energy buffer, and described energy buffer comprises storage capacitor, comparator and manostat；The outfan of described MPPT module connects the input of electric energy output interface, the outfan of described electric energy output interface connects the input of booster circuit, the outfan of described booster circuit connects the input of manostat, and the input of described comparator and storage capacitor is connected between booster circuit and manostat；
Described booster circuit comprises changer, inductance, stabilivolt, first electrochemical capacitor, second electrochemical capacitor, first resistance and the second resistance, the positive pole of the first electrochemical capacitor connects one end of inductance and the outfan of electric energy output interface respectively, the other end of inductance connects one end of the first resistance, the other end of the first resistance connects the positive pole of stabilivolt and the input of changer respectively, the negative pole of stabilivolt connects the positive pole of the second electrochemical capacitor respectively, the outfan of changer and the normal-closed end of switch, it is connected with energy buffer after the movable end of switch and the second resistant series, the negative pole of the first electrochemical capacitor, the negative pole of the second electrochemical capacitor, the earth terminal of changer is connected to ground.
A kind of thermoelectric micro-generators based on booster circuit the most according to claim 1, it is characterised in that: described temperature difference power collector uses thermo-electric conversion chip.
A kind of thermoelectric micro-generators based on booster circuit the most according to claim 1, it is characterised in that: the chip model of described storage capacitor is RD1E477M1012MPA.
A kind of thermoelectric micro-generators based on booster circuit the most according to claim 1, it is characterised in that: the chip model of described comparator is MIC841N.
A kind of thermoelectric micro-generators based on booster circuit the most according to claim 1, it is characterised in that: the chip model of described manostat is TPS78001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172686.1A CN105743392A (en) | 2016-03-24 | 2016-03-24 | Booster circuit-based miniature thermoelectric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172686.1A CN105743392A (en) | 2016-03-24 | 2016-03-24 | Booster circuit-based miniature thermoelectric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105743392A true CN105743392A (en) | 2016-07-06 |
Family
ID=56251258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610172686.1A Pending CN105743392A (en) | 2016-03-24 | 2016-03-24 | Booster circuit-based miniature thermoelectric generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105743392A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287549A (en) * | 2016-10-09 | 2017-01-04 | 中山市宏浦光电科技有限公司 | A kind of thermo-electric generation energy-saving converter |
| CN106793176A (en) * | 2016-11-17 | 2017-05-31 | 江苏智石科技有限公司 | A kind of environment real-time monitoring system based on booster circuit |
| CN108390462A (en) * | 2018-05-09 | 2018-08-10 | 宁波大学 | A kind of self-powered piezoelectric type vibration synchronous energy extraction circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596293A (en) * | 2013-10-28 | 2014-02-19 | 天津大学 | Wireless sensor node stable power supply system based on minitype thermoelectric generator |
| CN104377764A (en) * | 2014-11-13 | 2015-02-25 | 无锡悟莘科技有限公司 | Abandoned direct current electric energy recycling control system based on boosted circuit |
-
2016
- 2016-03-24 CN CN201610172686.1A patent/CN105743392A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103596293A (en) * | 2013-10-28 | 2014-02-19 | 天津大学 | Wireless sensor node stable power supply system based on minitype thermoelectric generator |
| CN104377764A (en) * | 2014-11-13 | 2015-02-25 | 无锡悟莘科技有限公司 | Abandoned direct current electric energy recycling control system based on boosted circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287549A (en) * | 2016-10-09 | 2017-01-04 | 中山市宏浦光电科技有限公司 | A kind of thermo-electric generation energy-saving converter |
| CN106793176A (en) * | 2016-11-17 | 2017-05-31 | 江苏智石科技有限公司 | A kind of environment real-time monitoring system based on booster circuit |
| CN108390462A (en) * | 2018-05-09 | 2018-08-10 | 宁波大学 | A kind of self-powered piezoelectric type vibration synchronous energy extraction circuit |
| CN108390462B (en) * | 2018-05-09 | 2023-09-08 | 宁波大学 | Self-powered piezoelectric vibration energy synchronous extraction circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103596293A (en) | Wireless sensor node stable power supply system based on minitype thermoelectric generator | |
| CN101783616A (en) | Piezoelectric self-generated energy acquisition and illumination device for asphalt concrete pavement | |
| CN203691641U (en) | Wireless sensor node stable power supply system based on minitype thermoelectric generator | |
| CN105743392A (en) | Booster circuit-based miniature thermoelectric generator | |
| CN105159386A (en) | Wireless sensor node power supplying system | |
| CN105743391A (en) | Voltage stabilizer-based miniature thermoelectric generator | |
| CN105048875A (en) | Voltage regulator-based thermoelectric power generation sensor node | |
| CN202586475U (en) | Power generation and storage system based on temperature difference of window between summer and winter | |
| Shen et al. | EFCon: Energy flow control for sustainable wireless sensor networks | |
| CN100462558C (en) | Small-sized wind-driven supercapacitor power storage system and use thereof | |
| CN105136197A (en) | Community environment temperature real-time monitoring system | |
| CN206640379U (en) | Multipath generating and charging system structure | |
| CN108762217A (en) | A kind of exploitation for energy information management system and method | |
| CN108631425A (en) | A kind of ultra-wide space temperature variation electricity generation system | |
| Ding et al. | Research of wireless sensor network nodes based on ambient energy harvesting | |
| CN204948124U (en) | A kind of Internet of Things supervising device that can be suitable for conglomerate | |
| CN208423911U (en) | A kind of ultra-wide space temperature variation electricity generation system | |
| CN203219220U (en) | Thermoelectric generator | |
| Bayrak et al. | Simulation and experimental study of a hybrid system for different loads | |
| CN105048874A (en) | Miniature thermoelectric generator | |
| CN202564972U (en) | Household cluster type solar energy generating system | |
| CN203368370U (en) | Wireless data-collecting system capable of collecting thermal energy | |
| CN103825453B (en) | A kind of structure changes multi input high-gain DC converter | |
| CN205787748U (en) | A kind of solar powered building energy saving based on technology of Internet of things monitoring system | |
| CN107394805A (en) | Micro-grid stabilizing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |