CN109194158A - A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system - Google Patents
A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system Download PDFInfo
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- CN109194158A CN109194158A CN201811121788.6A CN201811121788A CN109194158A CN 109194158 A CN109194158 A CN 109194158A CN 201811121788 A CN201811121788 A CN 201811121788A CN 109194158 A CN109194158 A CN 109194158A
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- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
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- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention relates to a kind of ultra wide band rectification circuits applied to electromagnetic energy collection system.It is made of the road n demultiplexer circuit, the road n rectification subcircuits and the road n combiner circuit.The road n demultiplexer circuit is made of the adjacent bandpass filter of n frequency band, and the road n combiner circuit is made of n low-pass filter；The road n rectification subcircuits are made of the road n match circuit array and the road n rectifying device array.The road n match circuit array adjusts the input impedance of each branch rectification unit, reduces input port echo after combining.Using the road n branch/combining mechanism, the narrowband/routine bandwidth efficiency rectification unit for theoretically only needing n frequency band adjacent can realize any Wideband/Ultra-Wideband high efficiency rectification circuit, solve conventional rectifier circuit bandwidth and efficient contradiction.Present invention is mainly used in various high efficiency wireless energy transfer systems, have broad application prospects in wireless charging, the wireless energy transfer systems such as low-power consumption internet of things sensors.
Description
Technical field
The invention belongs to wireless energy transfer system technical fields, are related to a kind of applied to the super of electromagnetic energy collection system
Broadband rectification circuit.
Background technique
Rectification circuit is all one of the pith in wireless energy transfer system all the time, its performance quality is directly
Affect the performance superiority and inferiority of entire wireless energy transfer system.The narrower bandwidth of previous wireless energy transfer system equipment, efficiently
Rate rectification circuit is easier to realize, the development with wireless energy transfer system to wider bandwidth of operation, be badly in need of developing broadband/
Ultra wide band high efficiency rectification circuit, in traditional rectification circuit topological structure, the bandwidth of operation and rectification efficiency of rectification circuit
It is a pair of conflicting parameter, it is difficult to realize efficient broadband rectification circuit-, be difficult to meet Wideband/Ultra-Wideband high efficiency wireless
The growth requirement of energy collecting system.The high efficiency rectification circuit of research and development Wideband/Ultra-Wideband is for modern broadband/ultra-wide
Development with wireless energy collection system has a very important significance.
Summary of the invention
In view of defect existing for background technique, the present invention provides a kind of ultra wide bands applied to electromagnetic energy collection system
Rectification circuit, it realizes that Wideband/Ultra-Wideband is efficient on the basis of existing narrowband high efficiency rectification circuit, using combining mechanism
Rate rectification circuit can solve the problems, such as that bandwidth of operation existing for existing high efficiency rectification circuit is inadequate, especially suitable for various
In Wideband/Ultra-Wideband high efficiency wireless energy collection system.
To achieve the above object, the invention provides the following technical scheme:
A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system, including the road n demultiplexer circuit (1), the road n are whole
Flow subcircuits (2), the road n combiner circuit (3).Wherein, a kind of ultra wide band applied to electromagnetic energy collection system is whole
The input terminal of the output termination road n rectification subcircuits (2) of the road the n demultiplexer circuit (1) of current circuit, the road n rectify subcircuits
(2) input terminal of the output termination road n combiner circuit (3).
The road n demultiplexer circuit (1) uses shunt structure, the road the n band being made of the adjacent bandpass filter of n frequency band
Pass filter unit array (4) is constituted, so that the Wideband/Ultra-Wideband signal energy of input is divided by the road n demultiplexer circuit (1)
The adjacent road the n signal energy of frequency band.
The road n rectification subcircuits (2) constitutes structure by the road n match circuit array (5) and the road n rectifying device array (6)
At.The input impedance that the road n match circuit array (5) can respectively correspond to frequency band according to each road rectifying-device unit adjusts each rectification branch
Road input impedance makes the rectification branch input impedance of the road n meet the resistance requirements of the road n demultiplexer circuit (1) output end.
The road the n combiner circuit (3) is using the similar structure with the road n demultiplexer circuit (1), by the road n low-pass filter
Cell array (7) is constituted, so that the road the n DC energy of the road n rectification subcircuits (2) output passes through the road n combiner circuit (3)
After synthesize DC energy all the way, obtain Wideband/Ultra-Wideband rectification characteristic.
A kind of ultra wide band rectification circuit working principle applied to electromagnetic energy collection system proposed by the invention is as follows:
Signal energy is divided into the adjacent signal energy of the road n frequency band by the road n demultiplexer circuit (1) after input terminal feed-in.n
When road signal energy enters the road n rectification subcircuits (2), impedance is completed by the respective match circuit of the road n rectification subcircuits (2)
Matching, is rectified into the road n rectifying device circuit.Then, the road the n DC energy after rectification is input to the road n combiner circuit
(3)；After being combined, frequency band adjacent signal energy rectification in the road n is become into DC energy all the way.Due to the road n demultiplexer circuit (1)
In band-pass filter unit array and the road n combiner circuit (3) in low pass filter unit array for rectification after occur
Higher harmonic components stopband characteristic, harmonic component roundtrip between filter, iterate through rectifying device circuit into
Row rectification realizes harmonic energy utilization, improves rectification efficiency, and the final high efficiency for realizing Wideband/Ultra-Wideband rectifies output.
The technology that the invention patent provides can meet various Wideband/Ultra-Wideband high efficiency wireless energy collection system demands, have very big
Application value.
Advantages of the present invention and remarkable result are:
A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system proposed by the invention uses the road n point
Road/combining mechanism, the narrowband/routine bandwidth high efficiency rectification unit that theoretically need to only utilize n frequency band adjacent can be real
Incumbent meaning Wideband/Ultra-Wideband high efficiency rectification circuit, solves the contradiction of conventional rectifier circuit bandwidth of operation Yu high rectification efficiency.
A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system proposed by the invention, has used band logical filter
Wave device and low-pass filter iterate through rectified current so that the higher harmonic components occurred after rectification reflect between filter
Road is rectified, and is realized harmonic energy utilization, is improved rectification efficiency.
A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system proposed by the invention, have it is at low cost,
The advantages such as versatility is good.Present invention is mainly used in various high efficiency wireless energy collection systems, in wireless charging, low-power consumption object
Have broad application prospects in the wireless energies collection system such as networked sensor.
Detailed description of the invention
Fig. 1 is a kind of ultra wide band rectification circuit schematic diagram applied to electromagnetic energy collection system proposed by the present invention；
Fig. 2 is the rectification efficiency simulation curve for implementing 2 tunnel subcircuits in example；
Fig. 3 is the rectification efficiency simulation curve for implementing integrated circuit in example；
Numbering in the drawing corresponds to title are as follows:
(1) road n shunt circuit, (2) road n rectify subcircuits, (3) road n Combining Circuit (4) road n band-pass filter unit
Array, (5) road n match circuit array, (6) road n rectification unit array, (7) road n low pass filter unit array.
Specific embodiment
Below by for example bright advantages of the present invention.
Example 1: Fig. 1 is a kind of ultra wide band rectification circuit applied to electromagnetic energy collection system proposed by the present invention, when n is
When 2, then become a double frequency-band combining rectification circuit.Select two paths of signals energy working frequency range for 1.5-2.0GHz and 2.0-
2.5GHz, then the circuit includes following components: a 2 tunnel shunt circuits, 2 road Combining Circuit, a working frequency range
The rectification circuit that rectification circuit, a working frequency range for 1.5-2.0GHz are 2.0-2.5GHz.Fig. 2 is 2 branches in example 1
(including the bandpass filter in corresponding splitter, rectifying the low-pass filter in branch and combiner) whole whole
Efficiency is flowed, the 1.5-2.5GHz broadband signal of input is divided into 1.5-2.0GHz and 2.0-2.5GHz two by 2 tunnel shunt circuits
A successive bands are rectified, and two branches realize at corresponding frequency band 69% or more rectification efficiency.
2 tunnel shunt circuit, two output end is connected with 2 tunnels rectification two input terminal of subcircuits respectively, the direct current after two-way rectification
Signal all the way by two successive bands signal synthesis of 1.5-2.0GHz and 2.0-2.5GHz, obtains after the combining of 2 road combiner circuits
High efficiency to the broadband 1.5-2.5GHz exports, and realizes the rectification efficiency higher than 68%, as shown in Figure 3.
Claims (4)
1. a kind of ultra wide band rectification circuit applied to electromagnetic energy collection system includes the road n demultiplexer circuit (1) road n branch electricity
Road, (2) road n rectify subcircuits, (3) road n Combining Circuit (4) road n band-pass filter unit array, (5) road n match circuit battle array
Column, (6) road n rectification unit array, (7) road n low pass filter unit array.It is characterized in that, the rectification circuit is by the road n point
Road circuit (1), the road n rectification subcircuits (2) and the road n Combining Circuit (3) are constituted, and the road n shunt circuit (1) is adjacent by n frequency band
The road the n band-pass filter unit array (4) of bandpass filter composition constitute so that the road n shunt circuit (1) is by the width of input
Band/ultra-broadband signal energy is divided into the adjacent road the n signal of frequency band, and the road n combiner circuit (3) uses and the road n shunt circuit (1) phase
As structure, be made of the road n low pass filter unit array (7), the road n Combining Circuit (3) input/output end port and the road n branch
The input/output port of circuit (1) is identical, and the road n rectifies subcircuits (2) by the road n match circuit array (5) and the road n rectifier
Part array (6) is constituted.
2. a kind of ultra wide band rectification circuit applied to electromagnetic energy collection system according to claim 1 uses the road n
The low pass filter unit array in band-pass filter unit array and the road n Combining Circuit (3) in shunt circuit (1), so that
The higher harmonic components occurred after rectification roundtrip between filter iterates through rectifying device circuit and is rectified, real
Show harmonic energy utilization, improves rectification efficiency.
3. a kind of ultra wide band rectification circuit applied to electromagnetic energy collection system according to claim 1 uses the road n
Match circuit array (5) adjusts each branch rectification unit input matching respectively, and then improves circuit and integrally input echo, improves
Whole rectification efficiency after combining.
4. a kind of ultra wide band rectification circuit applied to electromagnetic energy collection system according to claim 1 uses the road n
Branch/combining mechanism theoretically need to can only be realized using the adjacent narrowband/routine bandwidth rectification unit of n frequency band and be appointed
Meaning Wideband/Ultra-Wideband rectification circuit, solves the contradiction of conventional rectifier circuit bandwidth of operation and rectification efficiency.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811121788.6A CN109194158A (en) | 2018-09-26 | 2018-09-26 | A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system |
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| CN201811121788.6A CN109194158A (en) | 2018-09-26 | 2018-09-26 | A kind of ultra wide band rectification circuit applied to electromagnetic energy collection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736006A (en) * | 2020-08-07 | 2020-10-02 | 成都市易冲半导体有限公司 | Convenient detection method applied to wireless charging coil RMS current |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919858A (en) * | 2017-10-26 | 2018-04-17 | 电子科技大学 | Wideband/Ultra-Wideband high power amplifier based on combining mechanism |
| CN207337446U (en) * | 2017-08-14 | 2018-05-08 | 电子科技大学 | Based on collection of energy formula high sensitivity internet label |
| CN108021966A (en) * | 2017-12-22 | 2018-05-11 | 电子科技大学 | Wireless energy collection type GB/T29768 national standard internet labels |
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- 2018-09-26 CN CN201811121788.6A patent/CN109194158A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207337446U (en) * | 2017-08-14 | 2018-05-08 | 电子科技大学 | Based on collection of energy formula high sensitivity internet label |
| CN107919858A (en) * | 2017-10-26 | 2018-04-17 | 电子科技大学 | Wideband/Ultra-Wideband high power amplifier based on combining mechanism |
| CN108021966A (en) * | 2017-12-22 | 2018-05-11 | 电子科技大学 | Wireless energy collection type GB/T29768 national standard internet labels |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736006A (en) * | 2020-08-07 | 2020-10-02 | 成都市易冲半导体有限公司 | Convenient detection method applied to wireless charging coil RMS current |
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Application publication date: 20190111 |