JP2008278616A - Electrical device and power supply system - Google Patents
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- JP2008278616A JP2008278616A JP2007118415A JP2007118415A JP2008278616A JP 2008278616 A JP2008278616 A JP 2008278616A JP 2007118415 A JP2007118415 A JP 2007118415A JP 2007118415 A JP2007118415 A JP 2007118415A JP 2008278616 A JP2008278616 A JP 2008278616A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 52
- 230000005684 electric field Effects 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 5
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- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、モバイル装置等の電気機器に非接触で電力を供給する技術に関するものである。 The present invention relates to a technique for supplying electric power to an electric device such as a mobile device in a contactless manner.
非接触で電力を供給する技術としては、給電装置から被給電装置に交流磁束や電磁波を印加し、被給電装置において印加された交流磁束や電磁波をコイル等を用いて電力に変換して使用する技術が知られている（たとえば、特許文献１、２）。
前記交流磁束や電磁波を用いて給電を行う技術によれば、給電装置と被給電装置を充分に近接させないと、効率よく給電を行えないという問題があった。
そこで、本発明は、給電装置と被給電装置をさほど近接させなくても、非接触で効率よく給電を行えるようにすることを課題とする。
According to the technique of supplying power using the AC magnetic flux or electromagnetic wave, there is a problem that power cannot be supplied efficiently unless the power supply device and the power-supplied device are sufficiently close to each other.
Therefore, an object of the present invention is to enable efficient power supply in a non-contact manner without bringing the power supply device and the power-supplied device so close to each other.
前記課題達成のために、本発明は、電気機器に受電電極と、前記受電電極に接続し、前記受電電極に印加される交流電界を電力に変換する電力変換部とを備えたものである。 In order to achieve the above object, the present invention includes a power receiving electrode in an electrical device, and a power conversion unit that is connected to the power receiving electrode and converts an alternating electric field applied to the power receiving electrode into electric power.
ここで、前記電力変換部は、コイルと、前記受電電極に接続した、前記コイルに当該コイルの軸方向に重ねて配置された電極と、前記コイルの両端間に生じる交流を、前記電力として用いる直流に整流する整流部とを含めて構成する。または、直列接続された複数のコイルと、前記複数のコイルの各々に対応して、各々設けられた、前記受電電極に接続し対応するコイルに当該コイルの軸方向に重ねて配置された、複数の電極と、前記直列接続した複数のコイルの両端間に生じる交流を、前記電力として用いる直流に整流する整流部とより構成するようにしてもよい。 Here, the power conversion unit uses, as the power, a coil, an electrode connected to the power receiving electrode, the electrode arranged to overlap the coil in the axial direction of the coil, and an alternating current generated between both ends of the coil. And a rectifying unit that rectifies to direct current. Alternatively, a plurality of coils connected in series and a plurality of coils respectively provided corresponding to each of the plurality of coils and connected to the corresponding power receiving electrode and arranged to overlap each other in the axial direction of the coil. And a rectifying unit that rectifies alternating current generated between both ends of the plurality of coils connected in series to direct current used as the electric power.
このような電気機器によれば、交流電界の発生空間内に受信電極を位置させるだけで、電力を効率よく発生することができる。したがって、電気機器を直接給電装置に近接させずとも、たとえば、電気機器の受信電極を、給電装置において交流電界を発生させた空間内に位置させるだけで、当該電気機器に効率良く給電を行うことができるようになる。
さて、ここで、以上のような電気機器には、複数の前記電力変換部を、各電力変換部の整流部の出力を直列接続した形態で備えるようにしたり、複数の前記電力変換部を、各電力変換部の整流部の出力を並列接続した形態で備えるようにして、出力電圧や出力電流を、電力変換部を単独で備える場合に比べ増大させるようにしてもよい。
According to such an electric device, it is possible to efficiently generate electric power simply by positioning the receiving electrode in the space where the AC electric field is generated. Therefore, even if the electric device is not directly brought close to the power supply device, for example, the electric device can be efficiently supplied only by positioning the receiving electrode of the electric device in the space where the AC electric field is generated in the power supply device. Will be able to.
Now, in the above electrical equipment, a plurality of the power conversion units are provided in a form in which the outputs of the rectification units of each power conversion unit are connected in series, or a plurality of the power conversion units are provided. The output of the rectifying unit of each power conversion unit may be provided in a form connected in parallel, and the output voltage and the output current may be increased as compared with the case where the power conversion unit is provided alone.
また、以上の電気機器、給電システムにおいて前記給電媒体は人体であってよい。
また、以上の各電気機器を用いた給電システムは、より具体的には、当該電気機器と、当該電気器の前記受信電極が容量結合する、導電性ある給電媒体に容量結合し当該給電媒体に交流電圧信号を印加して当該給電媒体周りに電界を誘起する給電装置とより構成することができる。
Further, in the above electric apparatus and power feeding system, the power feeding medium may be a human body.
In addition, more specifically, the power supply system using each of the above electric devices is capacitively coupled to a conductive power supply medium in which the electric device and the reception electrode of the electric device are capacitively coupled to the power supply medium. A power supply device that applies an AC voltage signal to induce an electric field around the power supply medium can be configured.
以上のように、本発明によれば、給電装置と被給電装置をさほど近接させなくても、非接触で効率よく給電を行うことができる。 As described above, according to the present invention, power can be efficiently supplied in a non-contact manner without bringing the power feeding device and the power-supplied device so close to each other.
以下、本発明の実施形態を説明する。
図１ａに、本実施形態に係る給電システムの構成を示す。
図示するように、給電システムは、人間によって携帯されるモバイル装置１と、モバイル装置１に人体３を介して給電を行う給電装置２とを有する。
そして、給電装置２は、交流電圧信号を生成する発振器２１、発振器２１が生成した交流電圧信号を増幅して給電電極２３に印加する増幅器２２とを有している。ここで、給電電極２３は、給電電極２３に接近した人体３と非接触で容量結合して、交流信号を人体３に印加し、人体周りに電界を誘起する。
Embodiments of the present invention will be described below.
FIG. 1 a shows a configuration of a power feeding system according to the present embodiment.
As illustrated, the power supply system includes a mobile device 1 carried by a human and a power supply device 2 that supplies power to the mobile device 1 via a human body 3.
The power feeding device 2 includes an oscillator 21 that generates an AC voltage signal, and an amplifier 22 that amplifies the AC voltage signal generated by the oscillator 21 and applies the AC voltage signal to the power supply electrode 23. Here, the feeding electrode 23 is capacitively coupled to the human body 3 approaching the feeding electrode 23 in a non-contact manner, applies an AC signal to the human body 3, and induces an electric field around the human body.
一方、モバイル装置１は、受電電極１１、電力変換部１２、充電回路１３、バッテリ１４、電源回路１５、機能部１６とを有している。
そして、このようなモバイル装置１の構成において、受電電極１１は、モバイル装置１を携帯している人体３と非接触で容量結合し、人体周りの電界の作用を受ける。電力変換部１２は、受電電極１１に作用した電界から直流電圧を生成し、充電回路１３は、電力変換部１２が生成した直流電圧による電流を用いてバッテリ１４を充電し、電源回路１５は、バッテリ１４の電力を用いて、機能部１６で必要とする各種電圧の電源を生成する。そして、機能部１６は、電源回路１５が生成した電源を用いて動作し、所定の機能を果たす。
On the other hand, the mobile device 1 includes a power receiving electrode 11, a power conversion unit 12, a charging circuit 13, a battery 14, a power supply circuit 15, and a function unit 16.
In such a configuration of the mobile device 1, the power receiving electrode 11 is capacitively coupled with the human body 3 carrying the mobile device 1 in a non-contact manner, and receives the action of an electric field around the human body. The power converter 12 generates a DC voltage from the electric field applied to the power receiving electrode 11, the charging circuit 13 charges the battery 14 using the current generated by the DC voltage generated by the power converter 12, and the power supply circuit 15 The power of the battery 14 is used to generate power supplies of various voltages required by the function unit 16. The functional unit 16 operates using the power generated by the power circuit 15 and performs a predetermined function.
ここで、本実施形態に係る給電システムによれば、以上のように給電装置２とモバイル装置１が動作するので、たとえば、図１ｂに示すように、モバイル装置１を携帯したユーザが、改札ゲートなどに設置された給電電極２３に手を接近させただけで、給電装置２からモバイル装置１に給電することができるようになる。 Here, according to the power supply system according to the present embodiment, since the power supply device 2 and the mobile device 1 operate as described above, for example, as shown in FIG. It is possible to supply power from the power supply device 2 to the mobile device 1 simply by bringing a hand close to the power supply electrode 23 installed in the device.
さて、図１ａに戻り、モバイル装置１の電力変換部１２は、受電電極１１を各々入力INに接続した複数の電力変換ユニット１２１の正負（+-）の出力を直列接続した構成を有している。ここで、この電力変換部１２の構成を図２ａに示す。
図示するように、電力変換ユニット１２１は、コイル１０１とコイル１０１に近接配置した電極１０２とより構成される電圧生成回路１００を二つ備えており、二つの電圧生成回路１００のコイル１０１は直列に接続される。また、二つの電圧生成回路１００の電極１０２は、電力変換ユニット１２１の入力INを介して受電電極１１に接続される。
Now, returning to FIG. 1a, the power conversion unit 12 of the mobile device 1 has a configuration in which positive and negative (+-) outputs of a plurality of power conversion units 121 each having the power receiving electrode 11 connected to the input IN are connected in series. Yes. Here, the configuration of the power converter 12 is shown in FIG.
As shown in the figure, the power conversion unit 121 includes two voltage generation circuits 100 including a coil 101 and an electrode 102 disposed close to the coil 101. The coils 101 of the two voltage generation circuits 100 are connected in series. Connected. The electrodes 102 of the two voltage generation circuits 100 are connected to the power receiving electrode 11 via the input IN of the power conversion unit 121.
また、電力変換ユニット１２１は、直接接続した二つのコイル１０１の共振周波数を給電装置２の発振器２１の生成する交流電圧信号の周波数に設定するための第１コンデンサ１１０と、直接接続した二つのコイル１０１の両端に生じる交流を直流化する整流回路を有し、この整流回路は、ダイオード１２０と第２コンデンサ１３０とより構成され、この整流回路の出力が電力変換ユニット１２１の正負（+-）の出力となる。 In addition, the power conversion unit 121 includes a first capacitor 110 for setting the resonance frequency of the two directly connected coils 101 to the frequency of the AC voltage signal generated by the oscillator 21 of the power feeding device 2 and the two directly connected coils. 101 includes a rectifier circuit that converts the alternating current generated at both ends of the circuit 101 into a direct current. The rectifier circuit includes a diode 120 and a second capacitor 130. Output.
なお、電力変換部１２を構成するｎ個の電力変換ユニット１２１の直列接続は、i（iは１から n-1の整数)番目の電力変換ユニット１２１の負-の出力をi+１番目の電力変換ユニット１２１の正+の出力に接続することにより行われる。そして、１番目の電力変換ユニット１２１の正+の出力と、ｎ番目の電力変換ユニット１２１の負-の出力が電力変換部１２の出力として充電回路１３に接続される。 Note that the n power conversion units 121 constituting the power conversion unit 12 are connected in series with the negative output of the i-th power conversion unit 121 (i is an integer from 1 to n-1). This is done by connecting to the positive + output of the power conversion unit 121. The positive + output of the first power conversion unit 121 and the negative − output of the nth power conversion unit 121 are connected to the charging circuit 13 as the output of the power conversion unit 12.
さて、このような電力変換部１２によれば、各電力変換ユニット１２１の各電圧生成回路１００において、電極１０２に交流電圧が印加されると、電極１０２に交流が発生し、この交流に追従して、コイル１０１の軸方向にコイル１０１を貫く磁束に変化が発生し、この磁束変化に応じてコイル１０１に誘起電圧が生じる。そして、各電力変換ユニット１２１において、直列接続された二つのコイル１０１の両端間の交流電圧が、整流回路によって直流電圧に整流された後に出力される。そして、電力変換部１２において、各電力変換ユニット１２１の出力する直流電圧が加算され、当該電圧による電流が充電回路１３に出力され、バッテリ１４に充電されることになる。なお、本発明者の実験によれば、給電電極２３への5.0Vppの交流電圧信号の印加に対して、電力変換ユニット１２１一つでDC3.4V、22μAの電力を得ることができた。 Now, according to such a power conversion unit 12, in each voltage generation circuit 100 of each power conversion unit 121, when an AC voltage is applied to the electrode 102, an AC is generated in the electrode 102, and this AC is followed. Thus, a change occurs in the magnetic flux passing through the coil 101 in the axial direction of the coil 101, and an induced voltage is generated in the coil 101 in accordance with the change in the magnetic flux. In each power conversion unit 121, the AC voltage between both ends of the two coils 101 connected in series is output after being rectified to a DC voltage by the rectifier circuit. Then, in the power conversion unit 12, the DC voltage output from each power conversion unit 121 is added, and a current based on the voltage is output to the charging circuit 13 and the battery 14 is charged. According to the experiment of the present inventor, when a 5.0 Vpp AC voltage signal is applied to the feeding electrode 23, DC 3.4 V and 22 μA power can be obtained with one power conversion unit 121.
ここで、図２ｂ１、ｂ２に電圧生成回路１００の第１の構成例を示す。
図示するように、電圧生成回路１００は、フェライト製のコア１０１１が中央穴に挿入されたコイル１０１と、コア１０１１の上部の端面に固定した銅性の電極１０２と、電極１０２をコア１０１１の端面上に封止する比較的透磁率の大きな封止体１０１２を有している。ここで、電極１０２は導線を介して前述のように受電電極１１に接続される。また、封止体１０１２としては、磁性粉末を混合したエポキシ樹脂などを用いることができる。
Here, a first configuration example of the voltage generation circuit 100 is shown in FIGS.
As shown in the figure, the voltage generation circuit 100 includes a coil 101 in which a ferrite core 1011 is inserted in a central hole, a copper electrode 102 fixed to an upper end surface of the core 1011, and an electrode 102 connected to the end surface of the core 1011. A sealing body 1012 having a relatively high magnetic permeability is provided on the top. Here, the electrode 102 is connected to the power receiving electrode 11 through the conducting wire as described above. Further, as the sealing body 1012, an epoxy resin mixed with magnetic powder or the like can be used.
次に、図３に電圧生成回路１００の第２の構成例を示す。
本構成例は、プリント基板の導体パターンとして電圧生成回路１００を形成したものであり、この構成例では、図３ａに層構造を示すように、板状またはフィルム状の基材の３１の上に、第１パターン層３２、絶縁層３３、第２パターン層３４を当該順序で積層したプリント基板３０を用いる。
Next, FIG. 3 shows a second configuration example of the voltage generation circuit 100.
In this configuration example, a voltage generation circuit 100 is formed as a conductor pattern of a printed circuit board. In this configuration example, as shown in a layer structure in FIG. The printed circuit board 30 in which the first pattern layer 32, the insulating layer 33, and the second pattern layer 34 are stacked in this order is used.
そして、図３ｂに示すように、第１パターン層３２に設けた渦巻き形状を有する導電体パターンによってコイル１０１を形成し、第２パターン層３４に、導電体パターンにより電極１０２を形成する。また、絶縁層には、コイル１０１の両端を、第１パターン層上の、コイル１０１の両端に接続する導線パターンに接続するための接続ビア３５を形成する。ここで、電極１０２の導電体パターンは、図３ｄにプリント基板３０を鉛直方向から見た配置を示すように、コイル１０１のパターンを覆うように形成する。 Then, as shown in FIG. 3b, the coil 101 is formed by the conductive pattern having a spiral shape provided in the first pattern layer 32, and the electrode 102 is formed by the conductive pattern in the second pattern layer. In addition, connection vias 35 are formed in the insulating layer to connect both ends of the coil 101 to a conductor pattern connected to both ends of the coil 101 on the first pattern layer. Here, the conductor pattern of the electrode 102 is formed so as to cover the pattern of the coil 101 as shown in FIG.
ここで、図３ｄは、このようにして電圧生成回路１００を形成したプリント基板３０の外観を表しており、図示するように電圧生成回路１００は、単一のプリント基板３０に任意数形成することができる。
なお、電圧生成回路１００は、以上のようにプリント基板３０の導体パターンとして形成するのと同様にして半導体基板上のパターンとして形成することもできる。
以上、本発明の実施形態について説明した。
ところで、以上の実施形態では、電力変換部１２を、受電電極１１を各々入力INに接続した複数の電力変換ユニット１２１を直列に接続して構成したが、電力変換部１２は、電力変換ユニット１２１を単独で用いるように構成してもよい。
または、電力変換部１２は、図４ａに示すように受電電極１１を各々入力INに接続した複数の電力変換ユニット１２１を並列に接続して構成してもよい。なお、この場合には、電力変換部１２を構成する複数の電力変換ユニット１２１の並列接続は、各電力変換ユニット１２１の正+の出力同士、負-の出力同士をそれぞれ接続することにより行われる。そして、各電力変換ユニット１２１の正+の出力と、各電力変換ユニット１２１の負-の出力を電力変換部１２の出力として充電回路１３に接続することになる。
Here, FIG. 3d shows the appearance of the printed circuit board 30 on which the voltage generation circuit 100 is formed in this manner. As shown in the figure, the voltage generation circuit 100 is formed in an arbitrary number on the single printed circuit board 30. Can do.
Note that the voltage generation circuit 100 can also be formed as a pattern on a semiconductor substrate in the same manner as the conductor pattern of the printed circuit board 30 as described above.
The embodiment of the present invention has been described above.
In the above embodiment, the power conversion unit 12 is configured by connecting a plurality of power conversion units 121 each having the power receiving electrode 11 connected to the input IN in series. However, the power conversion unit 12 includes the power conversion unit 121. May be used alone.
Alternatively, the power conversion unit 12 may be configured by connecting in parallel a plurality of power conversion units 121 each having the power receiving electrode 11 connected to the input IN, as shown in FIG. 4a. In this case, the parallel connection of the plurality of power conversion units 121 constituting the power conversion unit 12 is performed by connecting the positive + outputs and the negative − outputs of each power conversion unit 121 to each other. . Then, the positive + output of each power conversion unit 121 and the negative − output of each power conversion unit 121 are connected to the charging circuit 13 as the output of the power conversion unit 12.
このようにすることにより、電力変換部１２から充電回路１３に流れる直流電流を大きさを、電力変換ユニット１２１を単独で用いる場合に比べ増大することができる。
また、以上の実施形態は、モバイル装置１を、充電回路１３、バッテリ１４、電源回路１５を省略し、電力変換部１２の出力を直接電源として機能部１６を動作させるように構成してもよい。
また、以上の実施形態に係る給電システムは、給電装置２を、モバイル装置１に信号伝送を行う送信装置として構成するようにしてもよい。
すなわち、この場合には、給電システムを、図４ｂに示すように、人間によって携帯されるモバイル装置１と、モバイル装置１に人体３を介した給電と信号送信を行う送信装置４とを有する。
By doing in this way, the magnitude | size of the direct current which flows into the charging circuit 13 from the power conversion part 12 can be increased compared with the case where the power conversion unit 121 is used independently.
In the above embodiment, the mobile device 1 may be configured to operate the functional unit 16 using the output of the power conversion unit 12 as a direct power source, omitting the charging circuit 13, the battery 14, and the power supply circuit 15. .
In the power supply system according to the above embodiment, the power supply device 2 may be configured as a transmission device that performs signal transmission to the mobile device 1.
That is, in this case, as shown in FIG. 4B, the power supply system includes a mobile device 1 carried by a human and a transmission device 4 that performs power supply and signal transmission via the human body 3 to the mobile device 1.
そして、送信装置４は、モバイル装置１に送信する信号を出力する送信信号処理部４１、送信信号処理部４１から出力された信号をＡＭ変調する変調器４２、ＡＭ変調器が変調した信号を増幅して給電電極２３に印加する増幅器２２とを有している。
一方、モバイル装置１は、受電電極１１、電力変換部１２、充電回路１３、バッテリ１４、電源回路１５、機能部１６、復調器１７とを有している。
そして、モバイル装置１において、受電電極１１は、モバイル装置１を携帯している人体３と容量結合し、人体周りの電界の作用を受ける。電力変換部１２は、受電電極１１に作用した電界から直流電圧を生成し、充電回路１３は、電力変換部１２が生成した直流電圧による電流を用いてバッテリ１４を充電し、電源回路１５は、バッテリ１４の電力を用いて、機能部１６で必要とする各種電圧の電源を生成する。復調器１７は、電源回路１５が生成した電源を用いて動作し、受電電極１１の出力より送信装置４が送信した信号を復調する。そして、機能部１６は、電源回路１５が生成した電源を用いて動作し、復調器１７が復調した信号を受信し、受信した信号に対して所定の処理を行う。
Then, the transmission device 4 outputs a signal to be transmitted to the mobile device 1, a transmission signal processing unit 41, a modulator 42 that modulates the signal output from the transmission signal processing unit 41, and amplifies the signal modulated by the AM modulator And an amplifier 22 to be applied to the power supply electrode 23.
On the other hand, the mobile device 1 includes a power receiving electrode 11, a power conversion unit 12, a charging circuit 13, a battery 14, a power supply circuit 15, a function unit 16, and a demodulator 17.
In the mobile device 1, the power receiving electrode 11 is capacitively coupled to the human body 3 carrying the mobile device 1 and is subjected to the action of an electric field around the human body. The power converter 12 generates a DC voltage from the electric field applied to the power receiving electrode 11, the charging circuit 13 charges the battery 14 using the current generated by the DC voltage generated by the power converter 12, and the power supply circuit 15 The power of the battery 14 is used to generate power supplies of various voltages required by the function unit 16. The demodulator 17 operates using the power supply generated by the power supply circuit 15 and demodulates the signal transmitted from the transmission device 4 from the output of the power receiving electrode 11. The functional unit 16 operates using the power supply generated by the power supply circuit 15, receives the signal demodulated by the demodulator 17, and performs predetermined processing on the received signal.
以上、本発明の実施形態について説明した The embodiment of the present invention has been described above.
１…モバイル装置、２…給電装置、３…人体、４…送信装置、１１…受電電極、１２…電力変換部、１３…充電回路、１４…バッテリ、１５…電源回路、１６…機能部、１７…復調器、２１…発振器、２２…増幅器、２３…給電電極、３０…プリント基板、４１…送信信号処理部、４２…変調器、１００…電圧生成回路、１０１…コイル、１０２…電極、１１０…第１コンデンサ、１２０…ダイオード、１２１…電力変換ユニット、１３０…第２コンデンサ、１０１１…コア、１０１２…封止体。 DESCRIPTION OF SYMBOLS 1 ... Mobile device, 2 ... Power feeding device, 3 ... Human body, 4 ... Transmission device, 11 ... Power receiving electrode, 12 ... Power conversion part, 13 ... Charging circuit, 14 ... Battery, 15 ... Power supply circuit, 16 ... Function part, 17 DESCRIPTION OF SYMBOLS ... Demodulator, 21 ... Oscillator, 22 ... Amplifier, 23 ... Feed electrode, 30 ... Printed circuit board, 41 ... Transmission signal processing part, 42 ... Modulator, 100 ... Voltage generation circuit, 101 ... Coil, 102 ... Electrode, 110 ... 1st capacitor | condenser, 120 ... diode, 121 ... power conversion unit, 130 ... 2nd capacitor | condenser, 1011 ... core, 1012 ... sealing body.
Claims (6)
受電電極と、
前記受電電極に接続し、前記受電電極に印加される交流電界を電力に変換する電力変換部とを有し、
前記電力変換部は、
コイルと、
前記受電電極に接続した、前記コイルに当該コイルの軸方向に重ねて配置された電極と、
前記コイルの両端間に生じる交流を、前記電力として用いる直流に整流する整流部とを有することを特徴とする電気機器。
Electrical equipment,
A receiving electrode;
A power converter connected to the power receiving electrode and converting an AC electric field applied to the power receiving electrode into electric power;
The power converter is
Coils,
An electrode connected to the power receiving electrode and arranged to overlap the coil in the axial direction of the coil; and
An electric device comprising: a rectifying unit that rectifies alternating current generated between both ends of the coil into direct current used as the electric power.
受電電極と、
前記受電電極に接続し、前記受電電極に印加される交流電界を電力に変換する電力変換部とを有し、
前記電力変換部は、
直列接続された複数のコイルと、
前記複数のコイルの各々に対応して、各々設けられた、前記受電電極に接続し対応するコイルに当該コイルの軸方向に重ねて配置された、複数の電極と、
前記直列接続した複数のコイルの両端間に生じる交流を、前記電力として用いる直流に整流する整流部とを有することを特徴とする電気機器。
Electrical equipment,
A receiving electrode;
A power converter connected to the power receiving electrode and converting an alternating electric field applied to the power receiving electrode into electric power;
The power converter is
A plurality of coils connected in series;
Corresponding to each of the plurality of coils, a plurality of electrodes connected to the power receiving electrode and disposed on the corresponding coil in an axial direction of the coil,
An electric device comprising: a rectifying unit that rectifies alternating current generated between both ends of the plurality of coils connected in series to direct current used as the electric power.
複数の前記電力変換部を、各電力変換部の整流部の出力を直列接続した形態で備えたことを特徴とする電気機器。
The electric device according to claim 1 or 2,
An electrical apparatus comprising a plurality of the power conversion units in a form in which outputs of rectification units of the respective power conversion units are connected in series.
複数の前記電力変換部を、各電力変換部の整流部の出力を並列接続した形態で備えたことを特徴とする電気機器。
The electric device according to claim 1 or 2,
An electrical apparatus comprising a plurality of the power conversion units in a form in which outputs of rectification units of the respective power conversion units are connected in parallel.
前記給電媒体は人体であることを特徴とする給電システム。
The power supply system according to claim 1, 2, 3 or 4,
The power supply system, wherein the power supply medium is a human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007118415A JP2008278616A (en) | 2007-04-27 | 2007-04-27 | Electrical device and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007118415A JP2008278616A (en) | 2007-04-27 | 2007-04-27 | Electrical device and power supply system |
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|---|---|
| JP2008278616A true JP2008278616A (en) | 2008-11-13 |
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| JP2007118415A Pending JP2008278616A (en) | 2007-04-27 | 2007-04-27 | Electrical device and power supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009212675A (en) * | 2008-03-03 | 2009-09-17 | Kaiser Technology:Kk | Alternating current signal detector and receiver |
| CN102570628A (en) * | 2010-12-24 | 2012-07-11 | 通用电气公司 | Power harvesting systems |
| US9496743B2 (en) | 2010-09-13 | 2016-11-15 | Semiconductor Energy Laboratory Co., Ltd. | Power receiving device and wireless power feed system |
| WO2020246539A1 (en) * | 2019-06-04 | 2020-12-10 | 学校法人早稲田大学 | Batteryless electronic device and transmission system |
-
2007
- 2007-04-27 JP JP2007118415A patent/JP2008278616A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009212675A (en) * | 2008-03-03 | 2009-09-17 | Kaiser Technology:Kk | Alternating current signal detector and receiver |
| US9496743B2 (en) | 2010-09-13 | 2016-11-15 | Semiconductor Energy Laboratory Co., Ltd. | Power receiving device and wireless power feed system |
| CN102570628A (en) * | 2010-12-24 | 2012-07-11 | 通用电气公司 | Power harvesting systems |
| WO2020246539A1 (en) * | 2019-06-04 | 2020-12-10 | 学校法人早稲田大学 | Batteryless electronic device and transmission system |
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