WO2015097811A1 - Resonant power-transfer device - Google Patents
Resonant power-transfer device Download PDFInfo
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- WO2015097811A1 WO2015097811A1 PCT/JP2013/084843 JP2013084843W WO2015097811A1 WO 2015097811 A1 WO2015097811 A1 WO 2015097811A1 JP 2013084843 W JP2013084843 W JP 2013084843W WO 2015097811 A1 WO2015097811 A1 WO 2015097811A1
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- the present invention relates to a resonant power transmission device that performs power transmission at a high frequency.
- Fig. 3 shows a conventional resonant power transmission device.
- This resonance type power transmission apparatus is configured by connecting a transmission antenna 101 formed of an inductor (coil) L11 to the output of a class E type transmission power source (see, for example, Non-Patent Document 1).
- Non-Patent Document 1 a resonant power transmission apparatus is configured by connecting the transmission antenna 101 to the output of the class E transmission power supply. For this reason, a large mounting space is required for the coil components to be used, and there is a problem that the apparatus is hindered from being reduced in size, weight, and cost.
- the present invention has been made in order to solve the above-described problems, and can reduce the size, weight, and cost of the apparatus, and can achieve a high-frequency operation of 2 MHz or more.
- the object is to provide a device.
- a resonance type power transmission device is a resonance type power transmission device including a power element that performs a switching operation at a high frequency of 2 MHz or more, and includes a capacitor and a coil that resonantly switch the switching operation of the power element.
- the coil which comprises a circuit element and the transmission antenna for electric power transmission which transmits the electric power output by the switching operation
- the present invention since it is configured as described above, it is possible to reduce the size, weight, and cost of the device, and to operate at a high frequency of 2 MHz or higher.
- FIG. 1 is a diagram showing a configuration of a resonant power transmission apparatus according to Embodiment 1 of the present invention.
- the resonance type power transmission device includes a power transmission element Q1, a resonance circuit element (capacitors C1, C2, C11 and an inductor L11), a resonance type transmission antenna (a power transmission transmission antenna) including a capacitor C11 and an inductor L11. ) 1, inductor L 1, high-frequency pulse drive circuit 2, variable pulse signal generation circuit 3, and bias power supply circuit 4.
- the power element Q1 is a switching element that performs a switching operation in order to convert the input DC voltage Vin into AC.
- the power element Q1 is not limited to a field effect transistor (FET) for RF (Radio Frequency), and elements such as Si-MOSFET, SiC-MOSFET, and GaN-FET can be used. .
- FET field effect transistor
- RF Radio Frequency
- the resonant circuit elements are elements for resonant switching of the switching operation of the power element Q1. Resonance conditions can be matched with the resonant transmission antenna 1 by the resonant circuit element including the capacitors C1, C2, C11 and the inductor L11.
- the capacitor C2 is a variable capacitance element. The resonance frequency of the resonance type power transmission device can be adjusted by changing the capacitance value of the capacitor C2.
- the resonant transmission antenna 1 including the capacitor C11 and the inductor L11 transmits power output by the switching operation of the power element Q1, and is a resonant antenna for power transmission having LC resonance characteristics (non-contact type). Not limited to only).
- the resonant transmission antenna 1 may be any of a magnetic field resonance type, an electric field resonance type, and an electromagnetic induction type.
- the inductor L11 is also used as the resonant transmission antenna 1 and a resonant circuit element (resonator).
- the inductor L1 functions to temporarily hold the energy of the input DC voltage Vin for each switching operation of the power element Q1.
- the high-frequency pulse drive circuit 2 is a circuit for driving the power element Q1 by sending a pulsed voltage signal having a high frequency of 2 MHz or higher to the G terminal of the power element Q1.
- the high-frequency pulse drive circuit 2 is a circuit configured so that a high-speed ON / OFF output can be performed by using an FET element or the like as a totem pole circuit configuration.
- the variable pulse signal generation circuit 3 is a circuit that drives the high-frequency pulse drive circuit 2 by sending a high-frequency pulsed voltage signal of 2 MHz or higher such as a logic signal to the high-frequency pulse drive circuit 2.
- the variable pulse signal generation circuit 3 includes a frequency setting oscillator and a logic IC such as a flip-flop or an inverter, and has functions such as a pulse width change and an inverted pulse output.
- the bias power supply circuit 4 supplies drive power to the variable pulse signal generation circuit 3 and the high-frequency pulse drive circuit 2.
- the input DC voltage Vin is applied to the D terminal of the power element Q1 through the inductor L1.
- the power element Q1 converts the voltage into a positive AC voltage by an ON / OFF switching operation.
- the inductor L1 temporarily holds energy to assist in converting power from direct current to alternating current.
- the switching operation of the power element Q1 is a resonant circuit composed of capacitors C1, C2, C11 and an inductor L11 so that ZVS (zero voltage switching) is established so that the switching loss due to the Ids current and the Vds voltage product is minimized.
- a resonant switching condition is set for the element.
- the resonance frequency of the resonance type power transmission device can be adjusted by adjusting the capacitance value of the variable capacitor C2.
- the resonant transmission antenna 1 transmits the power output by the switching operation of the power element Q1.
- the power element Q1 is driven by inputting a pulsed voltage signal output from the high-frequency pulse drive circuit 2 that receives an arbitrary pulsed voltage signal from the variable pulse signal generation circuit 3 to the G terminal of the power element Q1. Is going on. At this time, the driving frequency of the power element Q1 becomes the operating frequency of the resonant power transmission device and is determined by the setting of the oscillator circuit in the variable pulse signal generation circuit 3.
- the coil of the resonant power transmission apparatus is configured to be used as the resonant transmission antenna 1 and the resonant circuit element (resonator).
- the resonant circuit element resonator
- One device can be eliminated, and the size, weight and cost of the apparatus can be reduced compared to the conventional configuration.
- the power loss by the conventional coil can be reduced, the power loss of the entire apparatus can be reduced.
- FIG. 1 shows the case where the high-frequency pulse drive circuit 2, the variable pulse signal generation circuit 3, and the bias power supply circuit 4 are used to drive the power element Q1, but the present invention is not limited to this.
- a type drive circuit, an RF power amplifier circuit, and a multi-output type power supply circuit may be used.
- the present invention is not limited to the resonant power transmission apparatus having the configuration as shown in FIG. 1, and may be configured as shown in FIG. 2, for example.
- the capacitors C2 and C3 are variable capacitors, and the resonance frequency can be adjusted by changing the capacitance values of the capacitors C2 and C3.
- the present invention can be modified with any component of the embodiment or omitted with any component of the embodiment.
- the resonant power transmission device can reduce the size, weight, and cost of the device, can operate at a high frequency of 2 MHz or more, and performs power transmission at a high frequency. Suitable for use in devices and the like.
- Resonance type transmission antenna power transmission antenna
- High frequency pulse drive circuit Variable pulse signal generation circuit 4
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Abstract
A resonant power-transfer device provided with a power element that performs high-frequency switching operations at a frequency of 2 MHz or higher. Said resonant power-transfer device is provided with the following: a resonant circuit element comprising a capacitor and a coil that apply resonant switching to the switching operations performed by the aforementioned power element; and a resonant transmission antenna (1) that transfers power outputted via the switching operations performed by the power element. The coil in the resonant circuit element also serves as the resonant transmission antenna (1).
Description
この発明は、高周波数で電力伝送を行う共振型電力伝送装置に関するものである。
The present invention relates to a resonant power transmission device that performs power transmission at a high frequency.
図３に従来技術による共振型電力伝送装置を示す。この共振型電力伝送装置では、Ｅ級型送信電源の出力に、インダクタ（コイル）Ｌ１１からなる送信アンテナ１０１を接続して構成されている（例えば非特許文献１参照）。
Fig. 3 shows a conventional resonant power transmission device. This resonance type power transmission apparatus is configured by connecting a transmission antenna 101 formed of an inductor (coil) L11 to the output of a class E type transmission power source (see, for example, Non-Patent Document 1).
上述したように、非特許文献１に開示された従来技術では、Ｅ級型送信電源の出力に送信アンテナ１０１を接続することにより共振型電力伝送装置を構成している。そのため、使用するコイル部品による実装スペースが広く必要となり、装置の小型化、軽量化及び低コスト化の妨げとなっているという課題がある。
As described above, in the prior art disclosed in Non-Patent Document 1, a resonant power transmission apparatus is configured by connecting the transmission antenna 101 to the output of the class E transmission power supply. For this reason, a large mounting space is required for the coil components to be used, and there is a problem that the apparatus is hindered from being reduced in size, weight, and cost.
この発明は、上記のような課題を解決するためになされたもので、装置の小型化、軽量化及び低コスト化を図ることができ、２ＭＨｚ以上の高周波数の動作が可能な共振型電力伝送装置を提供することを目的としている。
The present invention has been made in order to solve the above-described problems, and can reduce the size, weight, and cost of the apparatus, and can achieve a high-frequency operation of 2 MHz or more. The object is to provide a device.
この発明に係る共振型電力伝送装置は、２ＭＨｚ以上の高周波数でスイッチング動作を行うパワー素子を備えた共振型電力伝送装置であって、パワー素子のスイッチング動作を共振スイッチングさせるコンデンサ及びコイルからなる共振回路素子と、パワー素子のスイッチング動作により出力された電力を伝送する電力伝送用送信アンテナとを備え、共振回路素子を構成するコイルは、電力伝送用送信アンテナを兼ねたものである。
A resonance type power transmission device according to the present invention is a resonance type power transmission device including a power element that performs a switching operation at a high frequency of 2 MHz or more, and includes a capacitor and a coil that resonantly switch the switching operation of the power element. The coil which comprises a circuit element and the transmission antenna for electric power transmission which transmits the electric power output by the switching operation | movement of a power element, and comprises a resonance circuit element serves as the transmission antenna for electric power transmission.
この発明によれば、上記のように構成したので、装置の小型化、軽量化及び低コスト化を図ることができ、２ＭＨｚ以上の高周波数の動作が可能となる。
According to the present invention, since it is configured as described above, it is possible to reduce the size, weight, and cost of the device, and to operate at a high frequency of 2 MHz or higher.
以下、この発明の実施の形態について図面を参照しながら詳細に説明する。
実施の形態１．
図１はこの発明の実施の形態１に係る共振型電力伝送装置の構成を示す図である。
共振型電力伝送装置は、図１に示すように、パワー素子Ｑ１、共振回路素子（コンデンサＣ１，Ｃ２，Ｃ１１及びインダクタＬ１１）、コンデンサＣ１１及びインダクタＬ１１からなる共振型送信アンテナ（電力伝送用送信アンテナ）１、インダクタＬ１、高周波パルスドライブ回路２、可変型パルス信号発生回路３及びバイアス用電源回路４から構成されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
1 is a diagram showing a configuration of a resonant power transmission apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, the resonance type power transmission device includes a power transmission element Q1, a resonance circuit element (capacitors C1, C2, C11 and an inductor L11), a resonance type transmission antenna (a power transmission transmission antenna) including a capacitor C11 and an inductor L11. ) 1, inductor L 1, high-frequency pulse drive circuit 2, variable pulsesignal generation circuit 3, and bias power supply circuit 4.
実施の形態１．
図１はこの発明の実施の形態１に係る共振型電力伝送装置の構成を示す図である。
共振型電力伝送装置は、図１に示すように、パワー素子Ｑ１、共振回路素子（コンデンサＣ１，Ｃ２，Ｃ１１及びインダクタＬ１１）、コンデンサＣ１１及びインダクタＬ１１からなる共振型送信アンテナ（電力伝送用送信アンテナ）１、インダクタＬ１、高周波パルスドライブ回路２、可変型パルス信号発生回路３及びバイアス用電源回路４から構成されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
1 is a diagram showing a configuration of a resonant power transmission apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, the resonance type power transmission device includes a power transmission element Q1, a resonance circuit element (capacitors C1, C2, C11 and an inductor L11), a resonance type transmission antenna (a power transmission transmission antenna) including a capacitor C11 and an inductor L11. ) 1, inductor L 1, high-frequency pulse drive circuit 2, variable pulse
パワー素子Ｑ１は、入力の直流電圧Ｖｉｎを交流に変換するためにスイッチング動作を行うスイッチング素子である。このパワー素子Ｑ１としては、ＲＦ（Ｒａｄｉｏ Ｆｒｅｑｕｅｎｃｙ）用の電界効果トランジスタ（ＦＥＴ；Ｆｉｅｌｄ Ｅｆｆｅｃｔ Ｔｒａｎｓｉｓｔｏｒ）に限らず、例えばＳｉ－ＭＯＳＦＥＴやＳｉＣ－ＭＯＳＦＥＴ、ＧａＮ－ＦＥＴなどの素子を用いることが可能である。
The power element Q1 is a switching element that performs a switching operation in order to convert the input DC voltage Vin into AC. The power element Q1 is not limited to a field effect transistor (FET) for RF (Radio Frequency), and elements such as Si-MOSFET, SiC-MOSFET, and GaN-FET can be used. .
共振回路素子（コンデンサＣ１，Ｃ２，Ｃ１１及びインダクタＬ１１）は、パワー素子Ｑ１のスイッチング動作を共振スイッチングさせるための素子である。このコンデンサＣ１，Ｃ２，Ｃ１１及びインダクタＬ１１からなる共振回路素子により、共振型送信アンテナ１との間で共振条件を合わせることができる。また、コンデンサＣ２は容量値可変型の素子である。そして、コンデンサＣ２の容量値を可変することで、共振型電力伝送装置の共振周波数の調整を行うことができる。
The resonant circuit elements (capacitors C1, C2, C11 and inductor L11) are elements for resonant switching of the switching operation of the power element Q1. Resonance conditions can be matched with the resonant transmission antenna 1 by the resonant circuit element including the capacitors C1, C2, C11 and the inductor L11. The capacitor C2 is a variable capacitance element. The resonance frequency of the resonance type power transmission device can be adjusted by changing the capacitance value of the capacitor C2.
コンデンサＣ１１及びインダクタＬ１１からなる共振型送信アンテナ１は、パワー素子Ｑ１のスイッチング動作により出力された電力を伝送するものであり、ＬＣ共振特性を持つ電力伝送用の共振型アンテナである（非接触型のみに限定されない）。この共振型送信アンテナ１は、磁界共鳴型、電界共鳴型、電磁誘導型のいずれであってもよい。ここで、インダクタＬ１１は、共振型送信アンテナ１と共振回路素子（共振器）として兼用される。
The resonant transmission antenna 1 including the capacitor C11 and the inductor L11 transmits power output by the switching operation of the power element Q1, and is a resonant antenna for power transmission having LC resonance characteristics (non-contact type). Not limited to only). The resonant transmission antenna 1 may be any of a magnetic field resonance type, an electric field resonance type, and an electromagnetic induction type. Here, the inductor L11 is also used as the resonant transmission antenna 1 and a resonant circuit element (resonator).
インダクタＬ１は、入力の直流電圧Ｖｉｎのエネルギーを、パワー素子Ｑ１のスイッチング動作ごとに一時的に保持する働きをするものである。
The inductor L1 functions to temporarily hold the energy of the input DC voltage Vin for each switching operation of the power element Q1.
高周波パルスドライブ回路２は、パワー素子Ｑ１のＧ端子に２ＭＨｚ以上の高周波数のパルス状の電圧信号を送り、パワー素子Ｑ１を駆動させる回路である。この高周波パルスドライブ回路２は、出力部をＦＥＴ素子などでトーテンポール回路構成にして高速のＯＮ／ＯＦＦ出力ができるように構成した回路である。
The high-frequency pulse drive circuit 2 is a circuit for driving the power element Q1 by sending a pulsed voltage signal having a high frequency of 2 MHz or higher to the G terminal of the power element Q1. The high-frequency pulse drive circuit 2 is a circuit configured so that a high-speed ON / OFF output can be performed by using an FET element or the like as a totem pole circuit configuration.
可変型パルス信号発生回路３は、高周波パルスドライブ回路２にロジック信号などの２ＭＨｚ以上の高周波数のパルス状の電圧信号を送り、高周波パルスドライブ回路２を駆動させる回路である。この可変型パルス信号発生回路３は、周波数設定用のオシレータとフリップフロップやインバータなどのロジックＩＣで構成され、パルス幅の変更や反転パルス出力などの機能を持つ。
The variable pulse signal generation circuit 3 is a circuit that drives the high-frequency pulse drive circuit 2 by sending a high-frequency pulsed voltage signal of 2 MHz or higher such as a logic signal to the high-frequency pulse drive circuit 2. The variable pulse signal generation circuit 3 includes a frequency setting oscillator and a logic IC such as a flip-flop or an inverter, and has functions such as a pulse width change and an inverted pulse output.
バイアス用電源回路４は、可変型パルス信号発生回路３及び高周波パルスドライブ回路２への駆動電力の供給を行うものである。
The bias power supply circuit 4 supplies drive power to the variable pulse signal generation circuit 3 and the high-frequency pulse drive circuit 2.
次に、上記のように構成された共振型電力伝送装置の動作について説明する。
まず、入力の直流電圧ＶｉｎはインダクタＬ１を通してパワー素子Ｑ１のＤ端子に印加される。そして、パワー素子Ｑ１は、その電圧をＯＮ／ＯＦＦのスイッチング動作により正電圧の交流状電圧へ変換する。この変換動作のときに、インダクタＬ１は一時的にエネルギーを保持する働きをして、直流を交流へ電力変換する手助けを行う。 Next, the operation of the resonant power transmission apparatus configured as described above will be described.
First, the input DC voltage Vin is applied to the D terminal of the power element Q1 through the inductor L1. The power element Q1 converts the voltage into a positive AC voltage by an ON / OFF switching operation. During this conversion operation, the inductor L1 temporarily holds energy to assist in converting power from direct current to alternating current.
まず、入力の直流電圧ＶｉｎはインダクタＬ１を通してパワー素子Ｑ１のＤ端子に印加される。そして、パワー素子Ｑ１は、その電圧をＯＮ／ＯＦＦのスイッチング動作により正電圧の交流状電圧へ変換する。この変換動作のときに、インダクタＬ１は一時的にエネルギーを保持する働きをして、直流を交流へ電力変換する手助けを行う。 Next, the operation of the resonant power transmission apparatus configured as described above will be described.
First, the input DC voltage Vin is applied to the D terminal of the power element Q1 through the inductor L1. The power element Q1 converts the voltage into a positive AC voltage by an ON / OFF switching operation. During this conversion operation, the inductor L1 temporarily holds energy to assist in converting power from direct current to alternating current.
ここで、パワー素子Ｑ１のスイッチング動作は、Ｉｄｓ電流とＶｄｓ電圧積によるスイッチング損失が最も小さくなるように、ＺＶＳ（ゼロボルテージスイッチング）が成立するようコンデンサＣ１，Ｃ２，Ｃ１１及びインダクタＬ１１からなる共振回路素子で共振スイッチング条件が設定されている。この共振スイッチング動作により、共振型送信アンテナ１にはＲＴＮ電圧を軸にした交流電圧が入力される。また、可変型のコンデンサＣ２の容量値を調整することで、共振型電力伝送装置の共振周波数の調整を行うことができる。
そして、共振型送信アンテナ１は、パワー素子Ｑ１のスイッチング動作により出力された電力を伝送する。 Here, the switching operation of the power element Q1 is a resonant circuit composed of capacitors C1, C2, C11 and an inductor L11 so that ZVS (zero voltage switching) is established so that the switching loss due to the Ids current and the Vds voltage product is minimized. A resonant switching condition is set for the element. By this resonant switching operation, an alternating voltage with the RTN voltage as an axis is input to the resonant transmission antenna 1. Further, the resonance frequency of the resonance type power transmission device can be adjusted by adjusting the capacitance value of the variable capacitor C2.
The resonant transmission antenna 1 transmits the power output by the switching operation of the power element Q1.
そして、共振型送信アンテナ１は、パワー素子Ｑ１のスイッチング動作により出力された電力を伝送する。 Here, the switching operation of the power element Q1 is a resonant circuit composed of capacitors C1, C2, C11 and an inductor L11 so that ZVS (zero voltage switching) is established so that the switching loss due to the Ids current and the Vds voltage product is minimized. A resonant switching condition is set for the element. By this resonant switching operation, an alternating voltage with the RTN voltage as an axis is input to the resonant transmission antenna 1. Further, the resonance frequency of the resonance type power transmission device can be adjusted by adjusting the capacitance value of the variable capacitor C2.
The resonant transmission antenna 1 transmits the power output by the switching operation of the power element Q1.
パワー素子Ｑ１の駆動は、可変型パルス信号発生回路３からの任意のパルス状の電圧信号を受けた高周波パルスドライブ回路２が出力する、パルス状の電圧信号をパワー素子Ｑ１のＧ端子へ入力することで行っている。このとき、パワー素子Ｑ１の駆動周波数は共振型電力伝送装置の動作周波数となり、可変型パルス信号発生回路３内部のオシレータ回路の設定により決まる。
The power element Q1 is driven by inputting a pulsed voltage signal output from the high-frequency pulse drive circuit 2 that receives an arbitrary pulsed voltage signal from the variable pulse signal generation circuit 3 to the G terminal of the power element Q1. Is going on. At this time, the driving frequency of the power element Q1 becomes the operating frequency of the resonant power transmission device and is determined by the setting of the oscillator circuit in the variable pulse signal generation circuit 3.
以上のように、この実施の形態１によれば、共振型電力伝送装置のコイルを、共振型送信アンテナ１と共振回路素子（共振器）として兼用させるように構成したので、従来必要とするコイルを１つ不要とすることができ、従来構成に対して装置の小型化、軽量化及び低コスト化を図ることができる。また、従来のコイルによる電力損失を低減できるため、装置全体としての電力損失の低減を図ることができる。
As described above, according to the first embodiment, the coil of the resonant power transmission apparatus is configured to be used as the resonant transmission antenna 1 and the resonant circuit element (resonator). One device can be eliminated, and the size, weight and cost of the apparatus can be reduced compared to the conventional configuration. Moreover, since the power loss by the conventional coil can be reduced, the power loss of the entire apparatus can be reduced.
また図１では、パワー素子Ｑ１を駆動させるため、高周波パルスドライブ回路２、可変型パルス信号発生回路３及びバイアス用電源回路４を用いた場合について示したが、これに限るものではなく、例えばトランス型ドライブ回路、ＲＦパワーアンプ回路及び多出力型電源回路を用いるようにしてもよい。
FIG. 1 shows the case where the high-frequency pulse drive circuit 2, the variable pulse signal generation circuit 3, and the bias power supply circuit 4 are used to drive the power element Q1, but the present invention is not limited to this. A type drive circuit, an RF power amplifier circuit, and a multi-output type power supply circuit may be used.
また図１に示すような構成の共振型電力伝送装置に限るものではなく、例えば図２に示すような構成としてもよい。なお図２に示す共振型電力伝送装置において、コンデンサＣ２，Ｃ３は可変型のコンデンサであり、当該コンデンサＣ２，Ｃ３の容量値を可変することで共振周波数の調整を行うことができる。
Further, the present invention is not limited to the resonant power transmission apparatus having the configuration as shown in FIG. 1, and may be configured as shown in FIG. 2, for example. In the resonant power transmission apparatus shown in FIG. 2, the capacitors C2 and C3 are variable capacitors, and the resonance frequency can be adjusted by changing the capacitance values of the capacitors C2 and C3.
また、本願発明はその発明の範囲内において、実施の形態の任意の構成要素の変形、もしくは実施の形態の任意の構成要素の省略が可能である。
In addition, within the scope of the present invention, the present invention can be modified with any component of the embodiment or omitted with any component of the embodiment.
この発明に係る共振型電力伝送装置は、装置の小型化、軽量化及び低コスト化を図ることができ、２ＭＨｚ以上の高周波数の動作が可能となり、高周波数で電力伝送を行う共振型電力伝送装置等に用いるのに適している。
The resonant power transmission device according to the present invention can reduce the size, weight, and cost of the device, can operate at a high frequency of 2 MHz or more, and performs power transmission at a high frequency. Suitable for use in devices and the like.
１ 共振型送信アンテナ（電力伝送用アンテナ）、２ 高周波パルスドライブ回路、３ 可変型パルス信号発生回路、４ バイアス用電源回路。
1 Resonance type transmission antenna (power transmission antenna) 2 High frequency pulse drive circuit 3 Variable pulse signal generation circuit 4 Power supply circuit for bias.
Claims (5)
- ２ＭＨｚ以上の高周波数でスイッチング動作を行うパワー素子を備えた共振型電力伝送装置であって、
前記パワー素子のスイッチング動作を共振スイッチングさせるコンデンサ及びコイルからなる共振回路素子と、
前記パワー素子のスイッチング動作により出力された電力を伝送する電力伝送用送信アンテナとを備え、
前記共振回路素子を構成するコイルは、前記電力伝送用送信アンテナを兼ねた
ことを特徴とする共振型電力伝送装置。 A resonant power transmission device including a power element that performs a switching operation at a high frequency of 2 MHz or higher,
A resonant circuit element comprising a capacitor and a coil for resonant switching of the switching operation of the power element;
A power transmission transmitting antenna for transmitting the power output by the switching operation of the power element,
The coil constituting the resonant circuit element also serves as the transmission antenna for power transmission. - 前記パワー素子は、ＲＦ用の電界効果トランジスタ以外の電界効果トランジスタである
ことを特徴とする請求項１記載の共振型電力伝送装置。 The resonant power transmission apparatus according to claim 1, wherein the power element is a field effect transistor other than a field effect transistor for RF. - 前記電力伝送用送信アンテナは、磁界共鳴により電力伝送を行う
ことを特徴とする請求項１記載の共振型電力伝送装置。 The resonant power transmission apparatus according to claim 1, wherein the transmission antenna for power transmission performs power transmission by magnetic field resonance. - 前記電力伝送用送信アンテナは、電界共鳴により電力伝送を行う
ことを特徴とする請求項１記載の共振型電力伝送装置。 The resonant power transmission apparatus according to claim 1, wherein the transmission antenna for power transmission performs power transmission by electric field resonance. - 前記電力伝送用送信アンテナは、電磁誘導により電力伝送を行う
ことを特徴とする請求項１記載の共振型電力伝送装置。 The resonant power transmission apparatus according to claim 1, wherein the transmission antenna for power transmission performs power transmission by electromagnetic induction.
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