CN203774883U - A wireless power supply system - Google Patents
A wireless power supply system Download PDFInfo
- Publication number
- CN203774883U CN203774883U CN201420163007.0U CN201420163007U CN203774883U CN 203774883 U CN203774883 U CN 203774883U CN 201420163007 U CN201420163007 U CN 201420163007U CN 203774883 U CN203774883 U CN 203774883U
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- China
- Prior art keywords
- power supply
- wireless power
- circuit
- supply system
- power amplifier
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Abstract
The utility model belongs to the field of wireless power supply and specifically relates to a wireless power supply system comprising a broadband sine signal generating module, a high power radio frequency power amplifying module, an electromagnetic transmitting and receiving system and loads. The broadband sine signal generating module, the high power radio frequency power amplifying module, the electromagnetic transmitting and receiving system and the loads are connected successively. The broadband sine signal generating module comprises a clapp oscillating circuit, a buffer circuit and adjustable amplifying circuit, which are connected successively. Compared with the conventional wireless power supply system, the wireless power supply system is characterized by wide range of signal frequency and large output power, can meet the requirement for remote and synchronous multi-load power supply, can supply to the loads efficiently, can be applied to the wireless power supply experiment research and the wireless power supply fields such as medical treatment, automatic production lines, traffic and transportation and portable electronic products, and enjoys a promising prospect.
Description
Technical field
The utility model belongs to wireless power field, is specifically related to a kind of wireless power supply system.
Background technology
Since the mankind step into Electrification Age, electric energy mainly directly contacts by wire, transmits in the mode of conducting, and electric equipment mainly obtains electric energy by the way of contact of plug and socket.There is the problems such as friction, wearing and tearing and nuditing wire in the transmission means of this wired, easily produces loose contact, contact sparking etc., thus the safety and reliability of impact power supply; So wireless power technology is arisen at the historic moment, and existing wireless power technology, because wireless power supply system power source frequency adjustable extent is narrower, in the time that frequency is higher, power is large not, cannot be load charging efficiently, and practical value is not high.
Summary of the invention
The utility model provides a kind of wireless power supply system, forms sine wave generator module by clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and signal amplitude is adjustable, and adjustable extent is 1-50MHz, and signal frequency adjustable range is wide; High power RF power amplifier module adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure, and efficiency is high, and the linearity is good, can realize the high-power output of 1-50MHz sinusoidal input signal; Than current wireless power supply system, signal frequency range is wide, power output is large, can meet remote, the requirement that multi-load is powered simultaneously, for load is powered efficiently, can be applied in the wireless power field of wireless power experimental study and medical treatment, automatic production line, communications and transportation, portable type electronic product etc., have a extensive future.
Technical solutions of the utility model are as follows:
A kind of wireless power supply system, it is characterized in that, comprise wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system and load, described wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system are connected successively with load; Described wideband sine wave generator module comprises clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and described clapp oscillating circuit, buffer circuit are connected successively with adjustable amplifying circuit.
Described high power RF power amplifier module adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure.
Described clapp oscillating circuit is capacitive feedback formula LC tri-end oscillating circuits, comprises high frequency transistor, regenerative circuit and LC oscillation circuit.
Described electromagnetism receive-transmit system comprises transmitting coil and receiving coil, and both resonance frequencys are identical.
Described high power RF power amplifier module, transmitting coil, receiving coil are connected successively with load.
the beneficial effects of the utility model:
1. the utility model wireless power supply system, forms sine wave generator module by clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and signal amplitude is adjustable, and adjustable extent is 1-50MHz, and signal frequency adjustable range is wide;
2. the utility model wireless power supply system, adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure, and efficiency is high, and the linearity is good, can realize the high-power output of 1-50MHz sinusoidal input signal;
3. the utility model wireless power supply system, than current wireless power supply system, signal frequency range is wide, power output is large, can meet at a distance, the requirement that multi-load is powered simultaneously, for load is powered efficiently, the wireless power field that can be applied in wireless power experimental study and medical treatment, automatic production line, communications and transportation, portable type electronic product etc., has a extensive future.
Brief description of the drawings
Fig. 1 is overall structure block diagram of the present utility model.
Fig. 2 is the circuit diagram of clapp oscillating circuit.
Fig. 3 is high power RF power amplifier modular circuit figure.
Embodiment
As shown in Figure 1, the utility model wireless power supply system, comprise wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system and load, wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system are connected successively with load; Wideband sine wave generator module comprises clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and described clapp oscillating circuit, buffer circuit are connected successively with adjustable amplifying circuit; The input of buffer circuit is connected with oscillating circuit output, and for the output of stable oscillating circuit, adjustable amplifying circuit is connected with buffer circuit, realizes the adjustment of sinusoidal signal amplitude.Electromagnetism receive-transmit system comprises transmitting coil and receiving coil, and both resonance frequencys are identical, and high power RF power amplifier module, transmitting coil, receiving coil and load are connected successively.
As shown in Figure 2, clapp oscillating circuit is capacitive feedback formula LC tri-end oscillating circuits, comprises high frequency transistor, regenerative circuit and LC oscillation circuit.LC oscillation circuit is by inductance L
1with tunable capacitor C
12form grouping capacitor C
1-C
2, C
3-C
4, C
5-C
6form feedback loop.Grouping capacitor C
1-C
2, C
3-C
4, C
5-C
6coordinate tunable capacitor C
12work, can realize the output of 1-50MHz scope sinusoidal signal.The frequency of output sinusoidal signal is by inductance L
1size and tunable capacitor C
12regulated quantity decision, grouping capacitance parameter requires to design to the ratio of output capacitance and feedback capacity according to oscillating circuit.LC oscillation circuit is made up of inductance and tunable capacitor, and grouping electric capacity is realized feedback.Grouping electric capacity coordinates tunable capacitor to switch, and realizes the output of wide frequency ranges sinusoidal signal.
As shown in Figure 3, high power RF power amplifier module adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure, high power RF power amplifier module is connected with wideband sine wave generator module, adopt high power RF MOSFET pipe composition push-pull power amplifier structure, carry out power amplification for driving wireless power receive-transmit system and load for the sinusoidal signal that wideband sine wave generator module is produced.Tuning network and input ferrite transformer provide gate pole coupling.Ferrite transformer provides 2:1 unbalanced-balanced conversion, meets the required balance input requirements of push-pull configuration.The grid of two ARF521 pipes is secondary through ground resistance earth by ferrite transformer respectively, can not be unsettled.Output adopts L shaped matching section, and this matching section is made up of series inductance and tunable capacitor in parallel.This power amplifier module can be worked at HF/VHF, can carry out power amplification to the 1-50MHz sinusoidal signal of input, and power output can reach 300W.This power amplifier module can be worked at HF/VHF, can carry out high power to the 1-50MHz sinusoidal signal of input and amplify output.
The utility model course of work is as follows:
First wideband sine wave generator module produces the sinusoidal signal of certain frequency, and this frequency is identical with electromagnetism receive-transmit system resonance frequency, carries out power amplification through high power RF power amplifier module, then passes through electromagnetism receive-transmit system powering load.Electromagnetism receive-transmit system is mainly made up of two coils separated from one another and that resonance frequency is identical, the electric energy of power amplifier module output is transformed into magnetic field energy by transmitting coil, receiving coil obtains this magnetic field energy efficiently according to resonance mode, and magnetic field energy is changed into electric energy supply load, thereby realize the wireless supply of electric energy.
The utility model wireless power supply system, forms sine wave generator module by clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and signal amplitude is adjustable, and adjustable extent is 1-50MHz, and signal frequency adjustable range is wide; High power RF power amplifier module adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure, and efficiency is high, and the linearity is good, can realize the high-power output of 1-50MHz sinusoidal input signal; Than current wireless power supply system, signal frequency range is wide, power output is large, can meet remote, the requirement that multi-load is powered simultaneously, for load is powered efficiently, can be applied in the wireless power field of wireless power experimental study and medical treatment, automatic production line, communications and transportation, portable type electronic product etc., have a extensive future.
Claims (5)
1. a wireless power supply system, it is characterized in that: comprise wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system and load, described wideband sine wave generator module, high power RF power amplifier module, electromagnetism receive-transmit system are connected successively with load; Described wideband sine wave generator module comprises clapp oscillating circuit, buffer circuit and adjustable amplifying circuit, and described clapp oscillating circuit, buffer circuit are connected successively with adjustable amplifying circuit.
2. wireless power supply system according to claim 1, is characterized in that: described high power RF power amplifier module adopts high power RF MOSFET pipe ARF521 composition push-pull power amplifier structure.
3. wireless power supply system according to claim 1, is characterized in that: described clapp oscillating circuit is capacitive feedback formula LC tri-end oscillating circuits, comprises high frequency transistor, regenerative circuit and LC oscillation circuit.
4. wireless power supply system according to claim 1, is characterized in that: described electromagnetism receive-transmit system comprises transmitting coil and receiving coil, and both resonance frequencys are identical.
5. according to the wireless power supply system described in claim 1 or 2 or 4, it is characterized in that: described high power RF power amplifier module, transmitting coil, receiving coil are connected successively with load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163007.0U CN203774883U (en) | 2014-04-04 | 2014-04-04 | A wireless power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420163007.0U CN203774883U (en) | 2014-04-04 | 2014-04-04 | A wireless power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774883U true CN203774883U (en) | 2014-08-13 |
Family
ID=51292032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420163007.0U Expired - Fee Related CN203774883U (en) | 2014-04-04 | 2014-04-04 | A wireless power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774883U (en) |
-
2014
- 2014-04-04 CN CN201420163007.0U patent/CN203774883U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160404 |
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| CF01 | Termination of patent right due to non-payment of annual fee |