CN107887957A - Charging circuit and charging equipment - Google Patents
Charging circuit and charging equipment Download PDFInfo
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- CN107887957A CN107887957A CN201711427860.3A CN201711427860A CN107887957A CN 107887957 A CN107887957 A CN 107887957A CN 201711427860 A CN201711427860 A CN 201711427860A CN 107887957 A CN107887957 A CN 107887957A
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- switch element
- electric charge
- storage elements
- charging circuit
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- 230000005669 field effect Effects 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910002601 GaN Inorganic materials 0.000 claims description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H02J7/0077—
-
- 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
- H02J7/00711—Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Charging circuit and charging equipment provided by the invention, are related to charging technique field.Wherein, charging circuit includes electric charge collecting unit, charge storage elements, control unit and switch element.Wherein, the charge storage elements are used to obtain electric charge caused by the electric charge collecting unit collection electric charge generation circuit, and by storing the electric charge to obtain electric energy, described control unit is when the magnitude of voltage of the charge storage elements reaches preset value, the switching means conductive is controlled, is charged so that the charge storage elements treat charging circuit by the switch element.Pass through above-mentioned setting, it is possible to achieve electric charge occurs effective utilization of electric charge caused by circuit, the problem of avoiding the wasting of resources.
Description
Technical field
The present invention relates to charging technique field, in particular to a kind of charging circuit and charging equipment.
Background technology
With the continuous development of electronic technology, it is widely used using the electronic equipment of the technology.Wherein, in electricity
Can typically there is the electric charge generation circuit that can be produced electric charge and form potential in the application of sub- equipment.Study and send out through inventor
Existing, there is the problem of wasting of resources in electric charge caused by the circuit of electric charge generation in the prior art because not utilized.
The content of the invention
In view of this, it is an object of the invention to provide a kind of charging circuit and charging equipment, electric charge is occurred with realizing
Effective utilization of electric charge caused by circuit, the problem of avoiding the wasting of resources.
To achieve the above object, the embodiment of the present invention adopts the following technical scheme that：
A kind of charging circuit, including：
Electric charge collecting unit, the input of the electric charge collecting unit occur as the input of the charging circuit with electric charge
Circuit connects, and electric charge caused by circuit occurs to gather electric charge；
Charge storage elements, the input of the charge storage elements are connected with the output end of the electric charge collecting unit, with
Obtain the electric charge of electric charge collecting unit collection, and by storing the electric charge to obtain electric energy；
Control unit, the input of the control unit are connected with the charge storage elements, to be stored according to the electric charge
The magnitude of voltage output control signal of unit；
Switch element, the control terminal of the switch element is connected with described control unit, input and electric charge storage are single
Member connection, output end are connected as the output end of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch when the magnitude of voltage of the charge storage elements reaches preset value
Unit turns on, and is charged so that the charge storage elements treat charging circuit by the switch element.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, described control unit includes：
Voltage detector, the input of the voltage detector are connected with the charge storage elements, to detect the electric charge
The magnitude of voltage of memory cell, and the first control signal is exported according to the magnitude of voltage；
Control signal generator, the input of the control signal generator is connected with the output end of the voltage detector,
Output end is connected with the control terminal of the switch element, to export second to the switch element according to first control signal
Control signal；
Wherein, the voltage detector exports high level signal, the control when the magnitude of voltage detected is more than preset value
Signal generator processed exports square-wave signal, height electricity of the switch element in square-wave signal when receiving the high level signal
Usually section conducting, the shut-off of low level period, are entered in the ranks with treating charging circuit by the switch element alternate conduction and shut-off
Gap type pulse charge.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, the charge storage elements are capacitor
And/or capacitor board.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, the switch element is triode, metal
Oxide semiconductor field effect transistor, IGCT, silicon carbide transistor, gallium nitride transistor, HEMT
And one kind in insulated gate bipolar transistor.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, the switch element aoxidizes for N-type metal
Thing semiconductor field effect transistor, the grid of the N-type mos field effect transistor and described control unit
Output end connection, drain electrode are connected with the charge storage elements, output end and to be charged electricity of the source electrode as the charging circuit
Road connects.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, the switch element is triode, and this three
Pole pipe includes base stage, collector and emitter, wherein, control terminal of the base stage as the switch element, the colelctor electrode
One of input as the switch element with emitter stage, another output end as the switch element.
In the embodiment of the present invention preferably selects, in above-mentioned charging circuit, the charging circuit also includes：
Voltage regulation unit, the input of the voltage regulation unit is connected with the output end of the switch element, described in output end conduct
The output end of charging circuit is connected with circuit to be charged, after the electric energy exported by the switch element is carried out into voltage stabilizing processing
Export to circuit to be charged.
The embodiment of the present invention additionally provides a kind of charging equipment, including circuit and charging circuit, the charging occur for electric charge
Circuit includes：
Electric charge collecting unit, the input of the electric charge collecting unit occur as the input of the charging circuit with electric charge
Circuit connects, and electric charge caused by circuit occurs to gather electric charge；
Charge storage elements, the input of the charge storage elements are connected with the output end of the electric charge collecting unit, with
Obtain the electric charge of electric charge collecting unit collection, and by storing the electric charge to obtain electric energy；
Control unit, the input of the control unit are connected with the charge storage elements, to be stored according to the electric charge
The magnitude of voltage output control signal of unit；
Switch element, the control terminal of the switch element is connected with described control unit, input and electric charge storage are single
Member connection, output end are connected as the output end of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch when the magnitude of voltage of the charge storage elements reaches preset value
Unit turns on, and is charged so that the charge storage elements treat charging circuit by the switch element.
In the embodiment of the present invention preferably selects, in above-mentioned charging equipment, described control unit includes：
Voltage detector, the input of the voltage detector are connected with the charge storage elements, to detect the electric charge
The magnitude of voltage of memory cell, and the first control signal is exported according to the magnitude of voltage；
Control signal generator, the input of the control signal generator is connected with the output end of the voltage detector,
Output end is connected with the control terminal of the switch element, to export second to the switch element according to first control signal
Control signal；
Wherein, the voltage detector exports high level signal, the control when the magnitude of voltage detected is more than preset value
Signal generator processed exports square-wave signal, height electricity of the switch element in square-wave signal when receiving the high level signal
Usually section conducting, the shut-off of low level period, are entered in the ranks with treating charging circuit by the switch element alternate conduction and shut-off
Gap type pulse charge.
In the embodiment of the present invention preferably selects, in above-mentioned charging equipment, the electric charge occurs circuit and taken for radio frequency
In circuit, electromagnetic coupled circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity change-over circuit
It is a kind of.
Charging circuit and charging equipment provided by the invention, pass through electric charge collecting unit, charge storage elements, control unit
With the cooperation of switch element, electric charge can to that electric charge caused by circuit occur and charged for treating charging circuit, Jin Ershi
Effective utilization of electric charge caused by circuit now occurs to electric charge, the problem of being effectively prevented from the wasting of resources, drastically increases and fills
The economic performance of circuit and charging equipment.
Further, turn on and turn off by using square-wave signal controlling switch units alternately, entered with treating charging circuit
Gap type pulse charge in the ranks, so as to improve the efficiency of charging, it is effectively improved the economic performance of charging circuit and charging equipment.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
Fig. 1 is the application block diagram of charging equipment provided in an embodiment of the present invention.
Fig. 2 is the application block diagram of charging circuit provided in an embodiment of the present invention.
Fig. 3 is the structured flowchart of charging circuit provided in an embodiment of the present invention.
Fig. 4 is another structured flowchart of charging circuit provided in an embodiment of the present invention.
Icon：10- charging equipments；100- charging circuits；110- electric charge collecting units；130- charge storage elements；150-
Control unit；151- voltage detectors；153- control signal generators；170- switch elements；190- voltage regulation units；200- electric charges
Generation circuit；300- circuits to be charged.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment only
It is the part of the embodiment of the present invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings
The component of embodiment can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.In description of the invention
In, term " first ", " second ", " the 3rd ", " the 4th " etc. are only used for distinguishing description, and it is not intended that being or implying relative
Importance.
In the description of the invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
As shown in figure 1, the embodiments of the invention provide a kind of charging equipment 10, filled for treating charging circuit 300
Electricity.Wherein, the charging equipment 10 includes electric charge generation circuit 200 and charging circuit 100.
In the present embodiment, the output end of circuit 200 and the input company of the charging circuit 100 occur for the electric charge
Connect, the output end of the charging circuit 100 is connected with the input of the circuit 300 to be charged, passes through the charging to realize
Circuit 100 is exported to the circuit 300 to be charged to by electric charge caused by electric charge generation circuit 200, to wait to fill to described
The purpose that circuit 300 is charged.
Alternatively, the particular type of the electric charge generation circuit 200 is unrestricted, as long as electric charge can be produced, for example,
Can be radio frequency power-supply circuit, electromagnetic coupled circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity
One kind in change-over circuit or it is other can caused by electric charge and the circuit that exports.
With reference to Fig. 2, the embodiment of the present invention also provides a kind of charging circuit 100 that can be applied to above-mentioned charging equipment 10.Its
In, the charging circuit 100 includes electric charge collecting unit 110, charge storage elements 130, control unit 150 and switch element
170。
Further, in the present embodiment, the input of the electric charge collecting unit 110 is as the charging circuit 100
Input and electric charge circuit 200 occur be connected, electric charge caused by circuit 200 occurs to gather electric charge.The electric charge storage is single
The input of member 130 is connected with the output end of the electric charge collecting unit 110, is gathered with obtaining the electric charge collecting unit 110
Electric charge, and by storing the electric charge to obtain electric energy.The input of described control unit 150 and the charge storage elements
130 connections, with the magnitude of voltage output control signal according to the charge storage elements 130.The control terminal of the switch element 170
It is connected with described control unit 150, input is connected with the charge storage elements 130, output end is as the charging circuit
100 output end is connected with circuit 300 to be charged.
Wherein, described control unit 150 controls institute when the magnitude of voltage of the charge storage elements 130 reaches preset value
State switch element 170 to turn on, enter so that the charge storage elements 130 treat charging circuit 300 by the switch element 170
Row charging.Described control unit 150 is opened when the magnitude of voltage of the charge storage elements 130 is not up to preset value described in control
Close unit 170 to turn off, to avoid the charge storage elements 130 from because the magnitude of voltage for exporting electric energy is too low being difficult to electricity to be charged
The problem of road 300 is effectively and reliably charged.
Alternatively, the concrete numerical value of the preset value is unrestricted, can be according to effective charging electricity of circuit 300 to be charged
Pressure is configured, for example, when effective charging voltage of circuit 300 to be charged is 5V, the preset value can be 5.5V, to keep away
The problem of voltage drop caused by exempting from the switch element 170 causes charging effectively and reliably to carry out.
Alternatively, the particular type of the electric charge collecting unit 110 is unrestricted, is configured according to the actual requirements i.e.
Can, electric charge caused by circuit 200 occurs as long as can sense and receive the electric charge.In the present embodiment, it is contemplated that institute
State electric charge occur circuit 200 produce electric charge the quantity of electric charge it is typically small, the electric charge collecting unit 110 can be battery lead plate.
Alternatively, the particular type of the charge storage elements 130 is unrestricted, is configured according to the actual requirements i.e.
Can, as long as can effectively obtain and store the electric charge of the collection of electric charge collecting unit 110.In the present embodiment, electric charge is sent out
The quantity of electric charge that raw circuit 200 produces electric charge is typically small, and the charge storage elements 130 need to carry out the storage ability of long period
Magnitude of voltage can be made to reach preset value, and then treat charging circuit 300 and charged, therefore, it is necessary to by the charge storage elements
130 are arranged to the electrical equipment with relatively low leakage current characteristic, for example, it may be capacitor or capacitor board or others
The rechargeable battery of Low dark curient.
With reference to Fig. 3, in the present embodiment, described control unit 150 can include voltage detector 151 and control signal is sent out
Raw device 153.The input of the voltage detector 151 is connected with the charge storage elements 130, is stored with detecting the electric charge
The magnitude of voltage of unit 130, and the first control signal is exported according to the magnitude of voltage.The input of the control signal generator 153
Be connected with the output end of the voltage detector 151, output end is connected with the control terminal of the switch element 170, with according to institute
State the first control signal and export the second control signal to the switch element 170.
Wherein, the voltage detector 151 exports high level signal when the magnitude of voltage detected is more than preset value, described
Control signal generator 153 exports square-wave signal when receiving the high level signal, and the switch element 170 is believed in square wave
Number the high level period conducting, the low level period shut-off, with by the alternate conduction of switch element 170 with shut-off to be charged
Circuit 300 carries out clearance-type pulse charge.The voltage detector 151 exports low when the magnitude of voltage detected is less than preset value
Level signal, the control signal generator 153 export low level signal when receiving the low level signal or not exported
Signal, so that the switch element 170 turns off according to the signal, to control the charge storage elements 130 to stop to be charged
Circuit 300 is charged.
Alternatively, the particular type of the switch element 170 is unrestricted, can be configured according to the actual requirements, example
Such as, can include, but are not limited to be triode, mos field effect transistor, IGCT, carborundum crystals
One kind in pipe, gallium nitride transistor, HEMT and insulated gate bipolar transistor.
Wherein, in a kind of example, preferably described switch element 170 is metal oxide semiconductor field effect transistor.Should
Mos field effect transistor can include grid, source electrode and drain electrode.The grid is as the switch element
170 control terminal is connected with the output end of described control unit 150, and the drain electrode and the one of of source electrode are used as the switch
The input of unit 170 is connected with the charge storage elements 130, another as the switch element 170 output end with
Circuit 300 to be charged connects.
The mos field effect transistor both can be N-type (such as N-MOS pipes) or p-type is (such as
P-MOS is managed).In the present embodiment, illustrated by taking N-type mos field effect transistor as an example.Wherein, the N
The grid of type metal oxide semiconductor field-effect transistor is connected with the output end of described control unit 150, drain with it is described
Charge storage elements 130 are connected, source electrode is connected as the output end of the charging circuit 100 with circuit 300 to be charged.By adopting
With N-type mos field effect transistor, using the low on-resistance characteristic of the transistor, institute can be effectively reduced
The power consumption of charging circuit 100 in the course of the work is stated, so as to reduce the use cost of charging circuit 100.
In another example, the switch element 170 can be triode.The triode include base stage, colelctor electrode and
Emitter stage, wherein, control terminal of the base stage as the switch element 170, the collector and emitter one of them
Input as the switch element 170, another output end as the switch element 170.
The triode both can be NPN type or positive-negative-positive.In the present embodiment, by taking NPN type triode as an example
Illustrate.Wherein, control terminal and described control unit 150 of the base stage of the NPN type triode as the switch element 170
Output end connection, colelctor electrode is connected with the charge storage elements 130 as the input of the switch element 170, launches
Pole is connected as the output end of the switch element 170 with circuit 300 to be charged.
Further, it is contemplated that, may when the charge storage elements 130 export electric energy by the switch element 170
The problem of situation of voltage pulsation being present, and then causing circuit 300 to be charged easily impaired in charging process, in the present embodiment
In, with reference to Fig. 4, the charging circuit 100 can also include voltage regulation unit 190.
Wherein, the input of the voltage regulation unit 190 be connected with the output end of the switch element 170, output end conduct
The output end of the charging circuit 100 is connected with circuit 300 to be charged, the electric energy that will be exported by the switch element 170
Exported after carrying out voltage stabilizing processing to circuit 300 to be charged.
In summary, charging circuit 100 and charging equipment 10 provided by the invention, pass through electric charge collecting unit 110, electric charge
The cooperation of memory cell 130, control unit 150 and switch element 170, electric charge can to that electric charge caused by circuit 200 occur and use
Charged in treating charging circuit 300, and then realize the effective utilization for electric charge occurring electric charge caused by circuit 200, effectively
Ground avoids the problem of wasting of resources, drastically increases the economic performance of charging circuit 100 and charging equipment 10.Secondly, pass through
Using the alternate conduction of square-wave signal controlling switch unit 170 and shut-off, filled with treating the progress clearance-type pulse of charging circuit 300
Electricity, so as to improve the efficiency of charging, it further increasing the economic performance of charging circuit 100 and charging equipment 10.Then, lead to
Cross and switch element 170 is arranged to N-type mos field effect transistor, there is low electric conduction using the transistor
The characteristic of resistance, can making switch element 170, caused power consumption is maintained in a relatively low scope at work, is filled so as to reduce
The overall power of circuit 100 and charging equipment 10, the economy that further increasing charging circuit 100 and charging equipment 10 are special
Property.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. charging circuit, it is characterised in that including：As the input of the charging circuit with electric charge circuit occurs for electric charge collecting unit, the input of the electric charge collecting unit Connection, electric charge caused by circuit occurs to gather electric charge；Charge storage elements, the input of the charge storage elements are connected with the output end of the electric charge collecting unit, to obtain The electric charge of electric charge collecting unit collection, and by storing the electric charge to obtain electric energy；Control unit, the input of the control unit are connected with the charge storage elements, with according to the charge storage elements Magnitude of voltage output control signal；Switch element, the control terminal of the switch element is connected with described control unit, input connects with the charge storage elements Connect, output end is connected as the output end of the charging circuit with circuit to be charged；Wherein, described control unit controls the switch element when the magnitude of voltage of the charge storage elements reaches preset value Conducting, is charged so that the charge storage elements treat charging circuit by the switch element.
- 2. charging circuit according to claim 1, it is characterised in that described control unit includes：Voltage detector, the input of the voltage detector are connected with the charge storage elements, are stored with detecting the electric charge The magnitude of voltage of unit, and the first control signal is exported according to the magnitude of voltage；Control signal generator, the input of the control signal generator are connected with the output end of the voltage detector, exported End is connected with the control terminal of the switch element, to be controlled according to first control signal to switch element output second Signal；Wherein, the voltage detector exports high level signal, the control letter when the magnitude of voltage detected is more than preset value Number generator exports square-wave signal when receiving the high level signal, and the switch element is in the high level of square-wave signal Section conducting, the shut-off of low level period, clearance-type is carried out to treat charging circuit by the switch element alternate conduction and shut-off Pulse charge.
- 3. charging circuit according to claim 1 or 2, it is characterised in that the charge storage elements be capacitor and/or Capacitor board.
- 4. charging circuit according to claim 1 or 2, it is characterised in that the switch element is triode, metal oxidation Thing semiconductor field effect transistor, IGCT, silicon carbide transistor, gallium nitride transistor, HEMT and One kind in insulated gate bipolar transistor.
- 5. charging circuit according to claim 4, it is characterised in that the switch element is that N-type metal oxide is partly led Body field-effect transistor, the grid of the N-type mos field effect transistor and the output end of described control unit Connection, drain electrode is connected with the charge storage elements, source electrode is connected as the output end of the charging circuit with circuit to be charged.
- 6. charging circuit according to claim 4, it is characterised in that the switch element is triode, the triode bag Base stage, collector and emitter are included, wherein, control terminal of the base stage as the switch element, the colelctor electrode and transmitting One of input as the switch element of pole, another output end as the switch element.
- 7. charging circuit according to claim 1 or 2, it is characterised in that the charging circuit also includes：Voltage regulation unit, the input of the voltage regulation unit is connected with the output end of the switch element, output end is as the charging The output end of circuit is connected with circuit to be charged, is exported after the electric energy exported by the switch element is carried out into voltage stabilizing processing To circuit to be charged.
- 8. a kind of charging equipment, it is characterised in that circuit and charging circuit, the charging circuit, which occurs, including electric charge includes：As the input of the charging circuit with electric charge circuit occurs for electric charge collecting unit, the input of the electric charge collecting unit Connection, electric charge caused by circuit occurs to gather electric charge；Charge storage elements, the input of the charge storage elements are connected with the output end of the electric charge collecting unit, to obtain The electric charge of electric charge collecting unit collection, and by storing the electric charge to obtain electric energy；Control unit, the input of the control unit are connected with the charge storage elements, with according to the charge storage elements Magnitude of voltage output control signal；Switch element, the control terminal of the switch element is connected with described control unit, input connects with the charge storage elements Connect, output end is connected as the output end of the charging circuit with circuit to be charged；Wherein, described control unit controls the switch element when the magnitude of voltage of the charge storage elements reaches preset value Conducting, is charged so that the charge storage elements treat charging circuit by the switch element.
- 9. charging equipment according to claim 8, it is characterised in that described control unit includes：Voltage detector, the input of the voltage detector are connected with the charge storage elements, are stored with detecting the electric charge The magnitude of voltage of unit, and the first control signal is exported according to the magnitude of voltage；Control signal generator, the input of the control signal generator are connected with the output end of the voltage detector, exported End is connected with the control terminal of the switch element, to be controlled according to first control signal to switch element output second Signal；Wherein, the voltage detector exports high level signal, the control letter when the magnitude of voltage detected is more than preset value Number generator exports square-wave signal when receiving the high level signal, and the switch element is in the high level of square-wave signal Section conducting, the shut-off of low level period, clearance-type is carried out to treat charging circuit by the switch element alternate conduction and shut-off Pulse charge.
- 10. charging equipment according to claim 8 or claim 9, it is characterised in that it is radio frequency power taking electricity that circuit, which occurs, for the electric charge One kind in road, electromagnetic coupled circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711427860.3A CN107887957A (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711427860.3A CN107887957A (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
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| CN107887957A true CN107887957A (en) | 2018-04-06 |
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| CN201711427860.3A Pending CN107887957A (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109767714A (en) * | 2019-03-08 | 2019-05-17 | 京东方科技集团股份有限公司 | Photoelectric conversion circuit and its driving method, photosensitive device, display device |
| CN114714770A (en) * | 2021-11-16 | 2022-07-08 | 珠海艾派克微电子有限公司 | Integrated circuit with a plurality of transistors |
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| CN114714770A (en) * | 2021-11-16 | 2022-07-08 | 珠海艾派克微电子有限公司 | Integrated circuit with a plurality of transistors |
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