CN208369472U - A kind of dual output power adapter - Google Patents
A kind of dual output power adapter Download PDFInfo
- Publication number
- CN208369472U CN208369472U CN201820967742.5U CN201820967742U CN208369472U CN 208369472 U CN208369472 U CN 208369472U CN 201820967742 U CN201820967742 U CN 201820967742U CN 208369472 U CN208369472 U CN 208369472U
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- disc type
- wireless
- output power
- circuit
- wired
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- 230000009977 dual effect Effects 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
A kind of dual output power adapter, it includes wired and wireless mixing output circuit, wireless receiving circuit, the wired and wireless mixing output circuit includes DC power supply, controller, capacitor, two switch mosfet pipes, disc type transmitting coil, DC power supply to disc type transmitting coil, have a linear load energy supply, controller controls wired output power and radio output power by controlling the on-off of two switch mosfet pipes；The wireless receiving circuit includes disc type receiving coil, full bridge rectifier, filter circuit, the disc type transmitting coil and disc type receiving coil are realized using electromagnetic induction principle obtains the DC current used for radio bearers after wireless power transmission, the alternating current that disc type receiving coil receives pass through full bridge rectifier and filter circuit.The utility model solves multi-output power converter causes control system complicated in the presence of adjusting is intersected, and the problem of distribution system performance difference has a wide range of applications.
Description
Technical field
The utility model relates to power adapter fields, and in particular to a kind of dual output power adapter.
Background technique
Distribution system with the output of multiple Independent adjustables is necessary for many electrical equipments.Currently used for reality
There are two ways to existing power adapter multi output: (1) by increasing additional switch at the output of power adapter, simultaneously
Carry out driving switch using drive scheme.(2) by power magnetic device (such as transformer or coupled power inductor) and correlation
The primary side of switch adds additional winding.But former approach there is between multiple outputs exist intersect adjust the shortcomings that,
The disadvantage makes controller design complicated and reduces the performance of distribution system；The latter's method there is multiple outputs cannot be same
When the shortcomings that adjusting.
Summary of the invention
The purpose of this utility model is to provide a kind of structures, and simple, distribution system performance is stablized, and has wired and wireless
The dual output power adapter of two types output.
A kind of dual output power adapter of the utility model, which is characterized in that it includes wired and wireless mixing output
Circuit, wireless receiving circuit, the wired and wireless mixing output circuit include DC power supply, controller, capacitor, two
Switch mosfet pipe, disc type transmitting coil, DC power supply to disc type transmitting coil, have linear load energy supply, controller passes through control
The on-off of two switch mosfet pipes controls wired output power and radio output power；The wireless receiving circuit includes disk
Formula receiving coil, full bridge rectifier, filter circuit, the disc type transmitting coil and disc type receiving coil are former using electromagnetic induction
Reason realizes wireless power transmission, and the alternating current that disc type receiving coil receives after full bridge rectifier and filter circuit by obtaining
To the direct current used for radio bearers.
A kind of dual output power adapter of the utility model, wired and wireless mixing output circuit is by a DC power supply
It is powered, there is electric current and voltage the opening by controller two switch mosfet pipes of control of line output terminal and wireless output
Frequency and duty ratio is closed to be adjusted, using the duty ratio by control switch mosfet pipe, control wired output voltage and
Electric current, the voltage and current of the switching frequency control wireless output of control switch mosfet pipe.Wireless transmission coil uses disk
Formula coil, not only as the transmitting terminal wirelessly exported, but also as the inductance in filter circuit.
Compared with prior art, the dual output power adapter of the utility model is using wired and wireless two kinds of defeated
Out, and by the switching frequency and duty ratio of control switch mosfet pipe, wireless receiving end and cable network reception end are adjusted respectively
Voltage, it solves multi-output power converter causes control system complicated in the presence of adjusting is intersected, and distribution system performance difference is asked
Topic.
Detailed description of the invention
Fig. 1 is the circuit topological structure of the utility model；
Fig. 2 is the control system block diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of main circuit topological structure of dual output power adapter includes wired and wireless mixing output
Circuit and wireless receiving circuit, the wired and wireless mixing output circuit include: DC power supply, capacitor C1, MOSFET1,
MOSFET2, disc type transmitting coil, capacitor 2.DC power supply can energize and to being there is linear load confession to disc type transmitting coil
Energy.The switching frequency and duty ratio of MOSFET1 and two switching tube of MOSFET2 determine wireless output respectively and have line output terminal
The size of voltage.Disc type transmitting coil can energize and be used as filter circuit to receiving end as the transmitting terminal wirelessly exported
In capacitor inhibit harmonic component pass through.The direct current of DC power supply output is in control both by switch mosfet comprising direct current
Component, and include the electric current of AC compounent.The electric current after the filter circuit being made of disc type transmitting coil and capacitor 2,
The DC current for controllably being had linear load to use, and changing magnetic field is generated in sandwich wound coil, the changing magnetic field can be
Alternating current is generated in disc type receiving coil.
The wireless receiving circuit includes disc type receiving coil, full bridge rectifier, filter circuit, wherein disc type emission lines
Circle realizes wireless power transmission, the alternating current that disc type receiving coil receives using electromagnetic induction principle with disc type receiving coil
By obtaining the direct current used for radio bearers after full bridge rectifier and filter circuit.
According to the dual output power-switching circuit that the utility model designs, following formula can be derived:
(1)
(2)
D is the duty ratio of switch mosfet pipe in formula (1)；For wired output voltage；For input voltage.
In formula (2)For the switching frequency of switch mosfet pipe；For the inductance value of disc type transmitting coil；It is connect for disc type
The inductance value of take-up circle；、The respectively electric current and voltage of wireless output；For transmitting sandwich wound coil and take-up reel
Coupling factor between formula coil, mainly at a distance from two coils and the parameter of two coils (inductance, size, the number of turns) is related；
For the peak value of sinusoidal voltage source, size can be by obtaining at the single order harmonic fundamental frequency of disc type transmitting coil both end voltage.
By formula (1) and formula (2) it can be seen that the duty ratio for adjusting two switch mosfet pipes will affect the power adapter
Wired output power but not influence radio output power, the switching frequency for adjusting two switch mosfet pipes will affect the electricity
The radio output power but not the wired output power of influence of source converter.Therefore, the power supply can be designed according to this characteristic
The control system of converter.
As shown in Fig. 2, the utility model dual output power adapter uses double closed-loop control system.According to wired load end
Demand and wired load end reality output, generate a deviation signal, then find out transmission function 2 according to formula (1), partially
Difference signal obtains duty cycle adjustment device gain by transmission function 2, according to the reality of the demand at radio bearers end and wired load end
Border output, generates a deviation signal, then finds out transmission function 1 according to formula 2, and deviation signal is obtained by transmission function 1
Frequency modulator gain.The gain of duty cycle adjustment device and frequency modulator gain are sent to controller simultaneously, and controller is sent a signal to
MOSFET driving circuit, MOSFET driving circuit drives two switch mosfet pipes, so that two switch mosfet pipes reach phase
The frequency and duty ratio answered, are completed at the same time the adjusting of line output terminal output power and wireless output output power.
Claims (1)
1. a kind of dual output power adapter, it is characterised in that: it includes wired and wireless mixing output circuit, wireless receiving electricity
Road, the wired and wireless mixing output circuit include DC power supply, controller, capacitor, two switch mosfet pipes, disc types
Transmitting coil, DC power supply to disc type transmitting coil, have a linear load energy supply, controller passes through two switch mosfet pipes of control
On-off controls wired output power and radio output power；The wireless receiving circuit includes that disc type receiving coil, full-bridge are whole
Current circuit, filter circuit, the disc type transmitting coil and disc type receiving coil realize that radio energy passes using electromagnetic induction principle
Defeated, the alternating current that disc type receiving coil receives after full bridge rectifier and filter circuit by obtaining making for radio bearers
Direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967742.5U CN208369472U (en) | 2018-06-22 | 2018-06-22 | A kind of dual output power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967742.5U CN208369472U (en) | 2018-06-22 | 2018-06-22 | A kind of dual output power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369472U true CN208369472U (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820967742.5U Active CN208369472U (en) | 2018-06-22 | 2018-06-22 | A kind of dual output power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880243A (en) * | 2018-06-22 | 2018-11-23 | 国网江西省电力有限公司电力科学研究院 | A kind of dual output power adapter |
-
2018
- 2018-06-22 CN CN201820967742.5U patent/CN208369472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880243A (en) * | 2018-06-22 | 2018-11-23 | 国网江西省电力有限公司电力科学研究院 | A kind of dual output power adapter |
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