CN204465151U - A kind of radio energy transmission system - Google Patents
A kind of radio energy transmission system Download PDFInfo
- Publication number
- CN204465151U CN204465151U CN201420608205.3U CN201420608205U CN204465151U CN 204465151 U CN204465151 U CN 204465151U CN 201420608205 U CN201420608205 U CN 201420608205U CN 204465151 U CN204465151 U CN 204465151U
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- Prior art keywords
- electric capacity
- transformer
- semiconductor
- oxide
- metal
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000004065 semiconductor Substances 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a kind of radio energy transmission system, comprise metal-oxide-semiconductor VT1, metal-oxide-semiconductor VT2, transformer T, inductance L, output voltage regulation circuit and rectifier bridge Q, the utility model proposes a kind of frequency follow-up system topology of two-layer configuration, ensureing under the prerequisite that primary frequency is followed the tracks of, have studied primary first goes the number of turn on the impact of efficiency of transmission, when transmission range changes, the frequency-tracking of elementary inversion is carried out by phase-locked loop, secondary output power regulates, ensure the stable of output voltage, and control simple, there is very strong practicality.
Description
Technical field
The utility model relates to a kind of electric energy transmission system, specifically a kind of radio energy transmission system.
Background technology
Utilize the method for wire transmission different from tradition, radio energy transmission system can utilize separable transformer, with crossing the mode of electromagnetic field couples by delivery of electrical energy to receiving terminal, in a lot of occasion, the separable transformer distance of radio energy transmission system is larger, coupling coefficient is lower, compared with common transformer, its leakage inductance and magnetizing inductance close, in some low coupling application, magnetizing inductance is even less than leakage inductance, greatly reduce energy transmission efficiency, and the electric current and voltage pressure of device is very large, if separable transformer design is improper, can cause a large amount of energy loss in iron loss, this not only lowers efficiency of transmission, and cause temperature rise, this is need to be avoided in some occasions (as artificial heart), in addition, because the power output of system is larger by the impact of transmission range, when the secondary generation relative displacement of primary, the energy received may be not enough to allow load normally work.
Utility model content
The purpose of this utility model is the radio energy transmission system providing a kind of constant voltage to export, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of radio energy transmission system, comprise metal-oxide-semiconductor VT1, metal-oxide-semiconductor VT2, transformer T, inductance L, output voltage regulation circuit and rectifier bridge Q, described output voltage regulation circuit connects inductance L two ends respectively, inductance L 1, electric capacity C two ends, rectifier bridge Q port 3, diode VD5 two ends, electric capacity C5 two ends and load RL two ends, described inductance L 1 other end connects rectifier bridge Q port one, rectifier bridge Q port 2 connects electric capacity C4 and transformer T coil L3 respectively, the transformer T coil L3 other end connects the electric capacity C4 other end and rectifier bridge Q port 4 respectively, described transformer T coil L2 one end connects comparator respectively, the S pole of metal-oxide-semiconductor VT1 and the S pole of metal-oxide-semiconductor VT2, the transformer T coil L2 other end connects electric capacity C3, the electric capacity C3 other end connects electric capacity C1 and electric capacity C2 respectively, the electric capacity C1 other end connects the D pole of AC power and metal-oxide-semiconductor VT1 respectively, the described electric capacity C2 other end connects the D pole of the AC power other end and metal-oxide-semiconductor VT2 respectively, the described comparator other end is connected to drive circuit by frequency tracking circuit, drive circuit also connects the G pole of metal-oxide-semiconductor VT1 and the G pole of metal-oxide-semiconductor VT2 respectively.
As further program of the utility model: described transformer T is separable transformer, described output voltage regulation circuit is Buck circuit.
As the utility model further scheme: described transformer T coil L2, electric capacity C3 and transformer T coil L3, electric capacity C4 all form LC resonance.
Compared with prior art, the beneficial effects of the utility model are: the frequency follow-up system topology that the utility model proposes a kind of two-layer configuration, ensureing under the prerequisite that primary frequency is followed the tracks of, have studied primary first goes the number of turn on the impact of efficiency of transmission, when transmission range changes, is carried out the frequency-tracking of elementary inversion by phase-locked loop, secondary output power regulates, ensure the stable of output voltage, and control simple, there is very strong practicality.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of radio energy transmission system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of radio energy transmission system, comprise metal-oxide-semiconductor VT1, metal-oxide-semiconductor VT2, transformer T, inductance L, output voltage regulation circuit and rectifier bridge Q, output voltage regulation circuit connects inductance L two ends respectively, inductance L 1, electric capacity C two ends, rectifier bridge Q port 3, diode VD5 two ends, electric capacity C5 two ends and load RL two ends, inductance L 1 other end connects rectifier bridge Q port one, rectifier bridge Q port 2 connects electric capacity C4 and transformer T coil L3 respectively, the transformer T coil L3 other end connects the electric capacity C4 other end and rectifier bridge Q port 4 respectively, transformer T coil L2 one end connects comparator respectively, the S pole of metal-oxide-semiconductor VT1 and the S pole of metal-oxide-semiconductor VT2, the transformer T coil L2 other end connects electric capacity C3, the electric capacity C3 other end connects electric capacity C1 and electric capacity C2 respectively, the electric capacity C1 other end connects the D pole of AC power and metal-oxide-semiconductor VT1 respectively, the electric capacity C2 other end connects the D pole of the AC power other end and metal-oxide-semiconductor VT2 respectively, the comparator other end is connected to drive circuit by frequency tracking circuit, drive circuit also connects the G pole of metal-oxide-semiconductor VT1 and the G pole of metal-oxide-semiconductor VT2 respectively.
Transformer T is separable transformer, and output voltage regulation circuit is Buck circuit.
Transformer T coil L2, electric capacity C3 and transformer T coil L3, electric capacity C4 all form LC resonance.
Control owing to have employed frequency tracking circuit, separable transformer T current waveform is close to sinusoidal wave, so its fundametal compoment of the utility model replaces semi-bridge inversion to export, frequency bifurcation can be avoided, learn that the output voltage of system and load have nothing to do through computational analysis, when transmission range changes, can ensure that output voltage is constant with crossing change duty ratio.
According to correlation formula, the ratios affect primary current size of primary and secondary self-induction, the iron loss of remote-effects separable transformer, after secondary self-induction is determined, the iron loss of secondary magnetic core is also just determined, selects the reasonably elementary raising contributing to system overall efficiency.
Radio energy transmission system involved by the utility model, adopt a kind of two-stage type structure, primary half-bridge reverse frequency is followed the tracks of, secondary Isobarically Control, the reception of secondary energy when effectively ensure that transmission range changes, and there is control simply, the advantages such as Energy Transfer is stable, in 2 ~ 20mm, system all can keep constant output.
Claims (3)
1. a radio energy transmission system, comprise metal-oxide-semiconductor VT1, metal-oxide-semiconductor VT2, transformer T, inductance L, output voltage regulation circuit and rectifier bridge Q, it is characterized in that, described output voltage regulation circuit connects inductance L two ends respectively, inductance L 1, electric capacity C two ends, rectifier bridge Q port 3, diode VD5 two ends, electric capacity C5 two ends and load RL two ends, described inductance L 1 other end connects rectifier bridge Q port one, rectifier bridge Q port 2 connects electric capacity C4 and transformer T coil L3 respectively, the transformer T coil L3 other end connects the electric capacity C4 other end and rectifier bridge Q port 4 respectively, described transformer T coil L2 one end connects comparator respectively, the S pole of metal-oxide-semiconductor VT1 and the S pole of metal-oxide-semiconductor VT2, the transformer T coil L2 other end connects electric capacity C3, the electric capacity C3 other end connects electric capacity C1 and electric capacity C2 respectively, the electric capacity C1 other end connects the D pole of AC power and metal-oxide-semiconductor VT1 respectively, the described electric capacity C2 other end connects the D pole of the AC power other end and metal-oxide-semiconductor VT2 respectively, the described comparator other end is connected to drive circuit by frequency tracking circuit, drive circuit also connects the G pole of metal-oxide-semiconductor VT1 and the G pole of metal-oxide-semiconductor VT2 respectively.
2. radio energy transmission system according to claim 1, is characterized in that, described transformer T is separable transformer, and described output voltage regulation circuit is Buck circuit.
3. radio energy transmission system according to claim 1, is characterized in that, described transformer T coil L2, transformer T coil L3 and electric capacity C3, electric capacity C4 all form LC resonance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608205.3U CN204465151U (en) | 2014-10-21 | 2014-10-21 | A kind of radio energy transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608205.3U CN204465151U (en) | 2014-10-21 | 2014-10-21 | A kind of radio energy transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465151U true CN204465151U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608205.3U Expired - Fee Related CN204465151U (en) | 2014-10-21 | 2014-10-21 | A kind of radio energy transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204465151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186714A (en) * | 2015-09-10 | 2015-12-23 | 胡江浩 | Low-power wireless charging circuit topological structure |
-
2014
- 2014-10-21 CN CN201420608205.3U patent/CN204465151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186714A (en) * | 2015-09-10 | 2015-12-23 | 胡江浩 | Low-power wireless charging circuit topological structure |
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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: 20150708 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |