JP2730651B2 - Power and signal carrier - Google Patents
Power and signal carrierInfo
- Publication number
- JP2730651B2 JP2730651B2 JP2260954A JP26095490A JP2730651B2 JP 2730651 B2 JP2730651 B2 JP 2730651B2 JP 2260954 A JP2260954 A JP 2260954A JP 26095490 A JP26095490 A JP 26095490A JP 2730651 B2 JP2730651 B2 JP 2730651B2
- Authority
- JP
- Japan
- Prior art keywords
- power
- signal
- circuit
- photoelectric conversion
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Optical Communication System (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は光波により電力と信号を搬送する電力および
信号搬送装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power and signal carrier device for carrying power and signals by light waves.
従来の技術 従来の電力と信号を搬送する装置は第３図に示すよう
なものがあった。第３図において、１は電力供給手段を
有する主回路で、２は補助回路である。３は主回路から
補助回路に電力および信号を搬送する線路である。電力
供給手段101は第１の回路102に電力を供給すると共に線
路３を介して補助回路２の第２の回路201にも電力を供
給している。また第１の回路102の信号は線路303を介し
て第２の回路201に伝送する。2. Description of the Related Art Conventionally, there is a conventional device for transmitting power and a signal as shown in FIG. In FIG. 3, 1 is a main circuit having power supply means, and 2 is an auxiliary circuit. Reference numeral 3 denotes a line that carries power and signals from the main circuit to the auxiliary circuit. The power supply means 101 supplies power to the first circuit 102 and also supplies power to the second circuit 201 of the auxiliary circuit 2 via the line 3. The signal of the first circuit 102 is transmitted to the second circuit 201 via the line 303.
発明が解決しようとする課題 しかしながら上記のような構成では、線路が導電性の
ためアンテナの役割をしノイズを回路内に伝送してしま
うことがある。また線路が水道配管やガス配管の近傍を
通ると漏電や爆発の可能性がある。Problems to be Solved by the Invention However, in the above-described configuration, the line may function as an antenna due to conductivity, and may transmit noise into the circuit. Also, if the track passes near water pipes or gas pipes, there is a possibility of electric leakage or explosion.
さらに電力線と信号線が別々に必要になり設置が難し
く電力線が直接信号線にノイズ等の悪影響を及ぼすこと
がある。Furthermore, since the power line and the signal line are separately required, it is difficult to install the power line and the power line may directly adversely affect the signal line such as noise.
本発明はかかる従来の課題を解消するもので、電力と
信号を時間的にはっきりと分離して切り替えた光波で伝
送することにより安全で効率の良い電力と信号の搬送を
可能とすることである。SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problem, and it is an object of the present invention to enable safe and efficient power and signal transport by transmitting power and signals clearly and temporally separated by switching light waves. .
課題を解決するための手段 上記課題を解決するために本発明の電力および信号搬
送装置は、電力供給手段と、伝送する信号を変調する変
調手段と前記電力供給手段の電力と前記変調手段の信号
を入力し駆動信号を作製する駆動手段と前記駆動手段に
より電気を光に変換する発光手段とを有する主回路と、
前記主回路の発光手段の発した光波を電力に変換する第
１の光電変換手段と光波内の変調分を電気信号に変換す
る第２の光電変換手段と、前記第１の光電変換手段の出
力を充電する充電手段と前記第２の光電変換手段の信号
を復調する復調手段とを有する補助回路と、前記主回路
の発光手段の光波を前記補助回路に伝送する光波伝送手
段とを有し、主回路における前記手段は前記補助回路内
の充電手段の充電状態を予想し、その状態に応じて電力
伝送と変調信号伝送を時間的に切り替える構成としたも
のである。Means for Solving the Problems To solve the above problems, a power and signal carrier device of the present invention comprises a power supply unit, a modulation unit for modulating a signal to be transmitted, a power of the power supply unit, and a signal of the modulation unit. A main circuit having a driving unit for inputting and generating a driving signal, and a light emitting unit for converting electricity into light by the driving unit,
First photoelectric conversion means for converting a light wave emitted from the light emitting means of the main circuit into electric power, second photoelectric conversion means for converting a modulated component in the light wave into an electric signal, and an output of the first photoelectric conversion means An auxiliary circuit having a charging unit for charging the second photoelectric conversion unit and a demodulation unit for demodulating a signal of the second photoelectric conversion unit, and a lightwave transmission unit for transmitting a lightwave of the light emitting unit of the main circuit to the auxiliary circuit, The means in the main circuit is configured to predict the state of charge of the charging means in the auxiliary circuit, and to temporally switch between power transmission and modulation signal transmission according to the state.
作用 以上の構成により、電力と信号を時間的に切り替えた
光波により回路間を伝送する。Operation With the above-described configuration, transmission between circuits is performed by a light wave whose power and signal are temporally switched.
実施例 以下、本発明の一実施例を図面を用いて説明する。な
お、第１図は電力伝送装置の断面図で第３図と同一部品
については同一番号を付している。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of the power transmission device, and the same parts as those in FIG. 3 are denoted by the same reference numerals.
主回路１において102は第１の回路で、103は電力また
は信号を光に変える発光手段（たとえばLEDや半導体レ
ーザ等）、104は前記発光手段103を駆動する駆動手段で
ある。105は前記第１の回路から補助回路内の第２の回
路に送る信号を変調する変調手段である。In the main circuit 1, reference numeral 102 denotes a first circuit, reference numeral 103 denotes a light emitting unit (for example, an LED or a semiconductor laser) for converting electric power or a signal into light, and reference numeral 104 denotes a driving unit for driving the light emitting unit 103. Reference numeral 105 denotes a modulating means for modulating a signal sent from the first circuit to a second circuit in the auxiliary circuit.
補助回路２において201は第２の回路で、202は光波を
電力に変換する第１の光電変換手段で、203は光波を電
気信号に変換する第２の光電変換手段で、204は前記第
２の光電変換手段203の出力を第１の回路102が送った信
号に復調する復調手段である。205は第１の光電変換手
段202によって得た電力を、充電する充電手段である。In the auxiliary circuit 2, 201 is a second circuit, 202 is first photoelectric conversion means for converting light waves into electric power, 203 is second photoelectric conversion means for converting light waves into electric signals, and 204 is the second photoelectric conversion means. Is a demodulation means for demodulating the output of the photoelectric conversion means 203 into a signal sent by the first circuit 102. 205 is a charging unit for charging the electric power obtained by the first photoelectric conversion unit 202.
４は発光手段103の光を前記第１の光電変換手段202お
よび第２の光電変換手段203まで伝送する光波伝送手段
である。前記主回路１と前記光波伝送手段４の間には第
１の間隙５を有し、同様に前記補助回路を前記光波伝送
手段４の間には第２の間隙６を有している。Reference numeral 4 denotes a lightwave transmission unit that transmits light from the light emitting unit 103 to the first photoelectric conversion unit 202 and the second photoelectric conversion unit 203. A first gap 5 is provided between the main circuit 1 and the lightwave transmission means 4, and a second gap 6 is similarly provided between the auxiliary circuit and the lightwave transmission means 4.
次に本発明の構成の動作を説明する。 Next, the operation of the configuration of the present invention will be described.
通常主回路１内の第１の回路102には電力供給手段101
から電力を直接供給している。補助回路２内の第２の回
路201への電力供給と信号伝送の方法を説明する。Normally, the first circuit 102 in the main circuit 1
Supplies electricity directly from A method for supplying power to the second circuit 201 in the auxiliary circuit 2 and transmitting a signal will be described.
例えば、補助回路２が主回路１から離れていたり、人
手の入らない所に設置されると電池交換等ができず電力
を主回路から供給する必要がある。さらに途中の電磁環
境が悪いと電気的に信号を送ることは困難である。For example, if the auxiliary circuit 2 is separated from the main circuit 1 or installed in a place where no one can access it, the battery cannot be replaced and the power must be supplied from the main circuit. Further, it is difficult to send signals electrically if the electromagnetic environment on the way is poor.
まず補助回路２内の第２の回路201への電力供給の方
法を説明する。First, a method of supplying power to the second circuit 201 in the auxiliary circuit 2 will be described.
主回路１内では駆動手段104により発光手段103を駆動
し電気を光に変換する。In the main circuit 1, the light emitting means 103 is driven by the driving means 104 to convert electricity into light.
この際、駆動手段104は充電手段205が充電するのに十
分な時間だけ電力を光波に変換するよう発光手段103を
駆動する。（第２図t1時間） 発光手段103からの光波は第１の間隙５を伝搬した
後、光波伝送手段４に入る。光波伝送手段４内を伝搬し
た光は第２の間隙６を通った後補助回路２内の第２の光
電変換手段202に達する。At this time, the driving means 104 drives the light emitting means 103 so as to convert the electric power into light waves for a time sufficient for the charging means 205 to charge. (Time t1 in FIG. 2) The light wave from the light emitting means 103 enters the light wave transmitting means 4 after propagating through the first gap 5. The light that has propagated in the lightwave transmission means 4 reaches the second photoelectric conversion means 202 in the auxiliary circuit 2 after passing through the second gap 6.
第１の光電変換手段202に導かれた光波はここで電力
に変換する。変換された電力は充電手段205（容量の大
きなコンデンサもしくは２次電池）に充電し安定した電
力供給をより可能とする。The light wave guided to the first photoelectric conversion means 202 is converted into electric power here. The converted power is charged into the charging means 205 (a capacitor or a secondary battery having a large capacity), thereby enabling more stable power supply.
充電手段205の充電量が第２の回路を動作する電力に
なるまでに電力を光波により搬送した後、第２の回路20
1の動作を維持するのに最低の充電量になると予想され
る時間（第２図t2時間）は電力の搬送を行なわない。After the electric power is conveyed by lightwave until the amount of charge of the charging means 205 reaches the electric power for operating the second circuit, the second circuit 20
The power is not transferred during the time (t2 in FIG. 2) that is expected to be the minimum amount of charge to maintain the operation of 1.
次に補助回路２内の第２の回路201への信号伝送の方
法を説明する。Next, a method of transmitting a signal to the second circuit 201 in the auxiliary circuit 2 will be described.
主回路１内において駆動手段104は第２図t1時間だけ
電力搬送に必要な駆動量で発光手段103を駆動する。In the main circuit 1, the driving means 104 drives the light emitting means 103 with the driving amount necessary for power transfer for the time t1 in FIG.
その後、t2時間（第２図）は電力を補助回路２に送る
必要が無いためこの時間を利用して第１の回路102から
補助回路２内の第２の回路201に送る信号を変調手段105
で変調し、その信号を駆動手段104を介し発光手段103に
より光に変換する。（第２図t3時間） この光波は電力搬送時と同様の経路をたどり補助回路
２に達し、第２の光電変換手段203に導かれここで電気
信号に変換される。第２の光電変換手段203の出力を復
調手段204は入力し第１の回路102が送った信号に復調す
る。第２回路201はこの復調された信号を受けて動作を
する。Thereafter, during the time t2 (FIG. 2), there is no need to transmit power to the auxiliary circuit 2, so that a signal to be transmitted from the first circuit 102 to the second circuit 201 in the auxiliary circuit 2 is modulated using this time.
And the signal is converted into light by the light emitting means 103 via the driving means 104. (Time t3 in FIG. 2) This light wave follows the same path as during power transfer, reaches the auxiliary circuit 2, is guided to the second photoelectric conversion means 203, and is converted into an electric signal. The output of the second photoelectric conversion means 203 is input to the demodulation means 204 and demodulated into a signal sent by the first circuit 102. The second circuit 201 operates upon receiving the demodulated signal.
充電手段205の電力は補助回路２の動作を維持するの
に最低の充電量（第２図MiN点）未満になるようなこと
がないよう充電時間t2を予め定めておく。したがって、
発光手段103から光波により電力を搬送している際、第
１の回路102から第２の回路201に信号を送る必要が生じ
た時は信号の搬送を優先することができる。（この時、
充電中ではあるが、充電手段205の充電量は補助回路２
を動作するのに十分な充電量をもっている。） このように駆動手段104が電力搬送と信号伝送を時間
的に切り替えて行なうことにより発光手段103や第１の
光電変換手段202の発熱をおさえることができ、効率良
く、さらに発光手段103と光電変換手段202の熱による寿
命低下を防ぎ電力および信号を搬送することができる。
（例えば発光手段103にLED、第１の光電変換手段202に
太陽電池を使用した場合、電力を搬送する時はLEDに流
す電流は大きくし高輝度で発光さす。信号を伝送すると
きはLEDの点滅が第２の光電変換手段203で判別できれば
良いため輝度は低くても良い。このように、発光手段10
3への駆動量を変えることにより発光手段103の発熱を抑
えることができる。） また主回路１側は補助回路２側に動作状態を指示する
立場にあるため補助回路２が電力を大量に消費するよう
な信号を伝送した場合は充電手段205の電力余裕が早く
無くなる可能性が高いため充電間隔を短くしたり、反対
に補助回路２が待機状態になるよう信号を送出した場合
等は充電手段205の電力をなかなか消費しないため充電
間隔すなわち電力送出の時間間隔を長くとっても良い。
このように主回路１で補助回路２の充電手段205の状態
を推定し電力および信号の送出を時間的に切り替えてい
くことが可能である。Power charging unit 205 previously determines the charging time t 2 so that no such less than minimum amount of charge to maintain the operation of the auxiliary circuit 2 (FIG. 2 MiN point) in advance. Therefore,
When power is transmitted from the light emitting means 103 by light waves, when it is necessary to send a signal from the first circuit 102 to the second circuit 201, the signal transmission can be prioritized. (This time,
Although charging is in progress, the charging amount of the charging means 205 is
Has enough charge to work. As described above, the driving means 104 switches the power transmission and the signal transmission in a timely manner, so that the heat generation of the light emitting means 103 and the first photoelectric conversion means 202 can be suppressed. It is possible to prevent the life of the conversion means 202 from being shortened by heat and to carry power and signals.
(For example, in the case where an LED is used for the light emitting means 103 and a solar cell is used for the first photoelectric conversion means 202, the current flowing to the LED is large when power is transferred and light is emitted with high brightness. The brightness may be low because the blinking only needs to be distinguished by the second photoelectric conversion means 203. As described above, the light emitting means 10 is used.
By changing the driving amount to 3, heat generation of the light emitting means 103 can be suppressed. Also, since the main circuit 1 is in a position to instruct the auxiliary circuit 2 on the operation state, when the auxiliary circuit 2 transmits a signal that consumes a large amount of power, the power margin of the charging means 205 may be quickly lost. In the case where a signal is sent such that the auxiliary circuit 2 is in a standby state because the power is high, the charging interval, that is, the time interval of the power transmission may be set long because the power of the charging unit 205 is not easily consumed. .
In this way, the main circuit 1 can estimate the state of the charging means 205 of the auxiliary circuit 2 and switch the transmission of power and signals over time.
また光波伝送手段４の両端面に集光手段402,403を設
けると伝送効率を高めることができる。Further, if the light condensing means 402 and 403 are provided on both end faces of the light wave transmitting means 4, the transmission efficiency can be improved.
上記のようにして電力と信号を搬送すると、光波伝送
手段４が水道配管やガス配管の近傍を通っても漏電や爆
発の可能性が無く安全である。さらにもし光波伝送手段
４が水分を吸収し毛細現象により主回路１または補助回
路２に水分が伝わっても第１の間隙および第２の間隙を
有しているため回路内に水分が入り故障を生じることが
無い。When the electric power and the signal are conveyed as described above, there is no possibility of electric leakage or explosion even when the light wave transmission means 4 passes near a water pipe or a gas pipe, so that it is safe. Furthermore, even if the light wave transmission means 4 absorbs moisture and the moisture is transmitted to the main circuit 1 or the auxiliary circuit 2 by the capillary phenomenon, the first gap and the second gap cause the moisture to enter the circuit and cause a failure. It does not occur.
また線路が非導電性のためアンテナの役割をしノイズ
を回路内に伝送してしまうことも無い。さらに線路を１
本で電力と信号を搬送することができ設置を容易とす
る。Further, since the line is non-conductive, it acts as an antenna and does not transmit noise into the circuit. One more track
The book can carry power and signals, making installation easier.
さらに電力線が直接信号線にノイズ等の悪影響を及ぼ
すことが無く信頼性が向上する。また逆に光波による信
号伝送のため外部に対しても電界、磁界などのノイズを
発することも無いため周囲の電子機器に対しても悪影響
を与えることが無くなる。Further, the reliability is improved without the power line directly affecting the signal line such as noise. On the contrary, since the signal transmission by the light wave does not generate noise such as an electric field and a magnetic field to the outside, it does not adversely affect surrounding electronic devices.
発明の効果 以上のように本発明の電力および信号搬送装置は、電
力供給手段と、伝送する信号を変調する変調手段と前記
電力供給手段の電力と前記変調手段の信号を入力し駆動
信号を作製する駆動手段と前記駆動手段により電気を光
に変換する発光手段とを有する主回路と、前記主回路の
発光手段の発した光波を電力に変換する第１の光電変換
手段と光波内の変調分を電気信号に変換する第２の光電
変換手段と、前記第１の光電変換手段の出力を充電する
充電手段と前記第２の光電変換手段の信号を復調する復
調手段とを有する補助回路と、前記主回路の発光手段の
光波を前記補助回路に伝送する光波伝送手段とを有し、
主回路における前記駆動手段は前記補助回路内の充電手
段の充電状態を予想し、その状態に応じて電力伝送と変
調信号伝送を時間的に切り替える構成からなり、駆動手
段が電力搬送と信号伝送を時間的に切り替えて行なうこ
とにより発光手段や第１の光電変換手段の発熱を抑える
ことができ、効率良く、熱による寿命低下を防ぎ電力お
よび信号を搬送することができる。また主回路側は補助
回路側に動作状態を指示する立場にあるため補助回路が
電力を大量に消費するような信号を伝送した場合は充電
手段の電力余裕が早く無くなる可能性が高いため充電間
隔を短くしたり、反対に補助回路が待機状態になるよう
信号を送出した場合等は充電手段の電力をなかなか消費
しないため充電間隔すなわち電力送出の時間間隔を長く
とるなどして、主回路で補助回路の充電手段の状態を推
定し電力および信号の送出を時間的に切り替えていくこ
とが可能である。Effect of the Invention As described above, the power and signal carrier device of the present invention generates a drive signal by inputting power supply means, modulation means for modulating a signal to be transmitted, power of the power supply means, and a signal of the modulation means. A main circuit having a driving unit for converting electricity into light by the driving unit, a first photoelectric conversion unit for converting a light wave emitted from the light emitting unit of the main circuit into electric power, and a modulation component in the light wave. An auxiliary circuit having a second photoelectric conversion unit that converts the signal into an electric signal, a charging unit that charges an output of the first photoelectric conversion unit, and a demodulation unit that demodulates a signal of the second photoelectric conversion unit. Having a light wave transmitting means for transmitting the light wave of the light emitting means of the main circuit to the auxiliary circuit,
The driving means in the main circuit predicts the charging state of the charging means in the auxiliary circuit, and has a configuration in which power transmission and modulation signal transmission are temporally switched according to the state, and the driving means performs power transmission and signal transmission. By performing the switching in time, heat generation of the light emitting means and the first photoelectric conversion means can be suppressed, and a power and a signal can be efficiently transported by preventing a reduction in life due to heat. Since the main circuit is in a position to instruct the auxiliary circuit on the operation state, if the auxiliary circuit transmits a signal that consumes a large amount of power, there is a high possibility that the power margin of the charging means will be lost quickly, so the charging interval is high. When the auxiliary circuit sends a signal so as to be in a standby state, the power of the charging means is not easily consumed. It is possible to estimate the state of the charging means of the circuit and switch the transmission of the power and the signal temporally.
また光波伝送手段が水道配管やガス配管の近傍を通っ
ても漏電や爆発の可能性が無く安全である。もし光波伝
送手段が水分を吸収し毛細現象により主回路または補助
回路に水分が伝わっても第１の間隙および第２の間隙を
有しているため回路内に水分が入り故障を生じることが
無い。Also, even if the light wave transmission means passes near the water pipe or the gas pipe, there is no possibility of electric leakage or explosion, so that it is safe. Even if the light wave transmission means absorbs moisture and the moisture is transmitted to the main circuit or the auxiliary circuit by the capillary phenomenon, moisture does not enter the circuit and cause a failure because the first gap and the second gap are provided. .
また線路が非導電性のためアンテナの役割をしノイズ
を回路内に伝送してしまうことも無い。さらに線路を１
本で電力と信号を搬送することができ設置を容易とす
る。Further, since the line is non-conductive, it acts as an antenna and does not transmit noise into the circuit. One more track
The book can carry power and signals, making installation easier.
さらに電力線が直接信号線にノイズ等の悪影響を及ぼ
すことが無く信頼性が向上する。また逆に光波による信
号伝送のため外部に対しても電界、磁界などのノイズを
発することも無いため周囲の電子機器に対しても悪影響
を与えることが無くなる。Further, the reliability is improved without the power line directly affecting the signal line such as noise. On the contrary, since the signal transmission by the light wave does not generate noise such as an electric field and a magnetic field to the outside, it does not adversely affect surrounding electronic devices.
第１図は本発明の一実施例の電力搬送装置のブロック
図、第２図は同装置の動作説明図、第３図は従来の電力
および信号搬送装置のブロック図である。 １……主回路、２……補助回路、４……光波伝送手段、
５……第１の間隙、６……第２の間隙、103……発光手
段、202……第１の光電変換手段、203……第２の光電変
換手段、205……充電手段、403,404……集光手段。FIG. 1 is a block diagram of a power transfer device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the device, and FIG. 3 is a block diagram of a conventional power and signal transfer device. 1 ... main circuit, 2 ... auxiliary circuit, 4 ... light wave transmission means,
5 first gap, 6 second gap, 103 light emitting means, 202 first photoelectric conversion means, 203 second photoelectric conversion means, 205 charging means, 403, 404 ... Condensing means.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長岡 行夫 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 城戸内 康夫 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭55−63525（ＪＰ，Ａ) 特開 昭58−115945（ＪＰ，Ａ) 特開 昭60−109340（ＪＰ，Ａ) ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yukio Nagaoka 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. In-company (56) References JP-A-55-63525 (JP, A) JP-A-58-115945 (JP, A) JP-A-60-109340 (JP, A)
Claims (1)
変調手段と前記電力供給手段の電力と前記変調手段の信
号を入力し駆動信号を作製する駆動手段と前記駆動手段
により電気を光に変換する発光手段とを有する主回路
と、前記主回路の発光手段の発した光波を電力に変換す
る第１の光電変換手段と光波内の変調分を電気信号に変
換する第２の光電変換手段と前記第１の光電変換手段の
出力を充電する充電手段と、前記第２の光電変換手段の
信号を復調する復調手段とを有する補助回路と、前記主
回路の発光手段の光波を前記補助回路に伝送する光波伝
送手段とを有し、主回路における前記駆動手段は前記補
助回路内の充電手段の充電状態を予想し、その状態に応
じて電力伝送と変調信号伝送を時間的に切り替える構成
とした電力および信号搬送装置。1. A power supply means, a modulation means for modulating a signal to be transmitted, a drive means for inputting the power of the power supply means and the signal of the modulation means to produce a drive signal, and the drive means for converting electricity to light. A main circuit having a light emitting means for converting, a first photoelectric conversion means for converting a light wave emitted from the light emitting means of the main circuit into electric power, and a second photoelectric conversion means for converting a modulated component in the light wave into an electric signal An auxiliary circuit having a charging unit for charging an output of the first photoelectric conversion unit, a demodulation unit for demodulating a signal of the second photoelectric conversion unit, and a light wave of a light emitting unit of the main circuit. Having a lightwave transmission means for transmitting to the main circuit, the driving means in the main circuit predicts the charging state of the charging means in the auxiliary circuit, and according to the state, power transmission and modulation signal transmission is temporally switched and Power and signal Transport equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260954A JP2730651B2 (en) | 1990-09-28 | 1990-09-28 | Power and signal carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2260954A JP2730651B2 (en) | 1990-09-28 | 1990-09-28 | Power and signal carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04140034A JPH04140034A (en) | 1992-05-14 |
| JP2730651B2 true JP2730651B2 (en) | 1998-03-25 |
Family
ID=17355081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2260954A Expired - Fee Related JP2730651B2 (en) | 1990-09-28 | 1990-09-28 | Power and signal carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2730651B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563525A (en) * | 1978-11-07 | 1980-05-13 | Nippon Electric Co | Light transmitting system |
| JPS58115945A (en) * | 1981-12-29 | 1983-07-09 | Toyoda Gosei Co Ltd | Power transmission and signal transmission and reception method to steering section |
| JPS60109340A (en) * | 1983-11-17 | 1985-06-14 | Sharp Corp | Power supply system |
-
1990
- 1990-09-28 JP JP2260954A patent/JP2730651B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04140034A (en) | 1992-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR940006324A (en) | Battery power system | |
| RU2306653C1 (en) | Wireless charging system with reverse communication | |
| KR100566220B1 (en) | Contactless battery charger | |
| CN108900141B (en) | Laser energy supply communication equipment, communication method thereof and power supply method | |
| JP2730651B2 (en) | Power and signal carrier | |
| WO2017197941A1 (en) | Photovoltaic assembly detection apparatus and electric power system | |
| JP2727750B2 (en) | Power and signal carrier | |
| CN108400582A (en) | A kind of single conductor electric energy transmission system based on tesla's high-tension coil short circuit | |
| JP2727751B2 (en) | Power and signal carrier | |
| KR860000985B1 (en) | Serial signal transmission system | |
| JP7141506B2 (en) | Charging device and method of operation thereof | |
| JPH06276702A (en) | Photoelectric power supply method | |
| FR2771563A1 (en) | Variable voltage supply for powering klystron oscillator tubes | |
| JP2727752B2 (en) | Power transfer device | |
| KR20100115898A (en) | Charging apparatus and method using regenerative energy, and intelligent wireless relay system and method using that | |
| US4281416A (en) | Light source system in an optical transmission repeater | |
| Kervarrec et al. | New flexible powering architecture for integrated service operators | |
| US20230109007A1 (en) | Wireless power supply device, wireless powered device, wireless power transmission system and manufacturing method thereof | |
| US20070194749A1 (en) | Contact-less communication system | |
| CN112332673B (en) | Network communication power supply with digital signal isolation | |
| JPH08182335A (en) | Photovoltaic power generation system | |
| JPH09191580A (en) | Non-contact type charging device | |
| JP2000181556A (en) | Solarlight power generation system | |
| TW202211602A (en) | Network communication power supply with digital signal isolation | |
| CN115733377A (en) | Synchronous rectification device, synchronous rectification method, power supply and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |