JPS62216457A - Data transmission equipment - Google Patents
Data transmission equipmentInfo
- Publication number
- JPS62216457A JPS62216457A JP5866286A JP5866286A JPS62216457A JP S62216457 A JPS62216457 A JP S62216457A JP 5866286 A JP5866286 A JP 5866286A JP 5866286 A JP5866286 A JP 5866286A JP S62216457 A JPS62216457 A JP S62216457A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- current
- magnetic flux
- windings
- conducted
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 32
- 230000004907 flux Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Dc Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は例えば、を話回線網を使ったデータ伝送等の直
流に交流信号を重畳した１式によるデータ伝送装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission device using one set in which an AC signal is superimposed on a DC signal, for example, for data transmission using a telephone line network.
第５図は従来の回路例である０この場会５０１はトラン
ス５００の変復調器側巻線であシ、６０２は回線側巻線
である。５０５は変復調器を示し。FIG. 5 shows an example of a conventional circuit. In this case, 501 is a winding on the modulator/demodulator side of the transformer 500, and 602 is a winding on the line side. 505 indicates a modem.
５０４はトランスｆＩ：流れる直流電流である。504 is a transformer fI: a flowing DC current.
この列では直流電流５０４によってトランスのコア５０
５に直流磁束が発生するためトランスのコアが飽和しな
いようにコアの大きさを大きくする必要力１あった。In this column, the DC current 504 causes the core 50 of the transformer to
Since direct current magnetic flux is generated in 5, it was necessary to increase the size of the core of the transformer so that it would not become saturated.
したがって、従来、トランスを組み込む装置の小型化が
妨げられｔす、コアの大型化によってコストの低下が難
かしかった。本発明は、この問題点を解決するもので、
その目的は、コアを小型化したデータ伝送装置を提供す
ることである。Therefore, conventionally, it has been difficult to reduce the size of devices incorporating the transformer, and it has been difficult to reduce costs due to the increase in the size of the core. The present invention solves this problem,
The purpose is to provide a data transmission device with a smaller core.
本発明は、少なくとも一対のおのおの同じ巻き数の巻き
線と、該巻き線のいずれか一方に交流信号を流すコンデ
ンサとから成り前記巻き線を流れる直流＋１！流によシ
発生される磁束は、前記巻き線対によシ打ち消されるも
のであることを特徴とする特
〔作用〕
本発明は、巻き線に流れる直流電流が、おのおの反対方
向の磁束を作り結果的に磁束全町ち消す。The present invention comprises at least a pair of windings each having the same number of turns, and a capacitor for passing an alternating current signal through one of the windings, and includes a direct current +1! flowing through the windings. The present invention is characterized in that the magnetic flux generated by the current is canceled by the pair of windings.The present invention is characterized in that the direct current flowing through the windings creates magnetic flux in opposite directions. As a result, the entire magnetic flux disappears.
〔実施例］ 渚１図は、本発明の一実施例の回路図である。〔Example] FIG. 1 is a circuit diagram of an embodiment of the present invention.
１はトランス１０の変復調器側巻線、２．５はトランス
１００亀話回線側巻線である。そして１巻＠２．Ｓは、
巻線が同じである。そして２０は変復調器、９はコアで
ある。又、端子５から６に電流を流した時に発生する磁
束の向きは、端子７から８に電流を流した時に発生する
磁束の向きと反対になるよう構成されている。４は交流
ｉｌ流を巻線２に流さないためのコンデンサであ夛、巻
線２のイノビーダンスに比較して伝送周波数帯域内にお
いて十分低いインピーダンスに設足されている０次に、
第１図の動作を説明する。直流電流１００は第１図に図
示されるように流れるが１巻線２と５の向きは逆なので
、発生する磁束は打ち消されてし１う。−万、交流’Ｉ
ｌｌ流２００は巻線５のみに流れるので、磁束は打ち消
てれず、巻線１に伝達される。又、逆に巻線１に流れる
交流電流３００は巻線３に伝達される。というのは１巻
線２については端子５及び６か又流的に短絡した状態に
あるからである。1 is a winding on the modem side of the transformer 10, and 2.5 is a winding on the voice line side of the transformer 100. And volume 1 @2. S is
The windings are the same. 20 is a modem and 9 is a core. Further, the direction of magnetic flux generated when current is passed from terminals 5 to 6 is opposite to the direction of magnetic flux generated when current is passed from terminals 7 to 8. Numeral 4 is a capacitor for preventing the AC current from flowing into the winding 2, and the zero-order capacitor is installed at a sufficiently low impedance within the transmission frequency band compared to the innovidance of the winding 2.
The operation shown in FIG. 1 will be explained. A direct current 100 flows as shown in FIG. 1, but since the directions of the first windings 2 and 5 are opposite, the generated magnetic flux is canceled out. - 10,000, AC'I
Since the ll current 200 flows only through the winding 5, the magnetic flux is not canceled out and is transmitted to the winding 1. Conversely, the alternating current 300 flowing through the winding 1 is transmitted to the winding 3. This is because, for winding 1, terminals 5 and 6 are also in a short-circuited state.
第２図は本発明の他の実施例を示すもので、この場合１
巻線２１及び５１は同じ向きに配列されている。しかし
、この場合１巻線２１ 、！＋１を流れる直流電流１１
０は図示されるように流れるので、結果として発生する
磁束は打ち消し会うことになる。FIG. 2 shows another embodiment of the invention, in which case 1
Windings 21 and 51 are arranged in the same direction. However, in this case 1 winding 21,! DC current 11 flowing through +1
Since zero flows as shown, the resulting magnetic fluxes will cancel out.
又、第１図の実施例ではコンデンサ４の一方の端子と端
子５を接続させているが、コンデンサ４の一方の端子と
端子８を接続するようｌＩ成してもよい。Further, in the embodiment shown in FIG. 1, one terminal of the capacitor 4 and the terminal 5 are connected, but it is also possible to connect one terminal of the capacitor 4 and the terminal 8 with an II.
又、第１図では変復調器２０を例としたが１例えば？を
話の送受信器でもよい。又、不発明は電話口＋ｉｓ！ｔ
−用い念データ伝送のみに限定されるものではなく、直
流の上に交流を乗せ念信号の伝達一般に適用できる。Also, in FIG. 1, the modulator/demodulator 20 is taken as an example, but for example? The talking transmitter/receiver may be used. Also, non-invention is phone +is! t
- It is not limited to the transmission of psychological data, but can be applied to general transmission of mental signals by adding alternating current on top of direct current.
以上に示してきたように本発明によればトランスのコア
に直流磁束が発生しないためコアの大きさを従来品に比
べ格段に小さくでき電話回線と接続する機器等を小型化
、低コスト化することができる。As shown above, according to the present invention, since no DC magnetic flux is generated in the core of the transformer, the size of the core can be made much smaller than that of conventional products, making equipment connected to telephone lines smaller and lower in cost. be able to.
第１図は本発明の一実施例を示す回路図である。
第２図は本発明の他の実施例を示す回路図である。
第３図は従来のデータ伝送装置の一例を示す回路図であ
る。
１．２．５・・・巻線
４・・・・・・・・・・・・・・・コンデンサ以
上
出願人 セイコーエプソン株式会社
第２図
第３図FIG. 1 is a circuit diagram showing an embodiment of the present invention. FIG. 2 is a circuit diagram showing another embodiment of the present invention. FIG. 3 is a circuit diagram showing an example of a conventional data transmission device. 1.2.5...Winding 4......Capacitor and beyond
Applicant: Seiko Epson Corporation Figure 2 Figure 3
Claims (1)
き線のいずれか一方に交流信号を流すコンデンサとから
成り前記巻き線を流れる直流電流により発生される磁束
は、前記巻き線対により打ち消されるものであることを
特徴とするデータ伝送装置。It consists of at least one pair of windings, each with the same number of turns, and a capacitor for passing an alternating current signal through one of the windings, and the magnetic flux generated by the direct current flowing through the windings is canceled out by the pair of windings. A data transmission device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5866286A JPS62216457A (en) | 1986-03-17 | 1986-03-17 | Data transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5866286A JPS62216457A (en) | 1986-03-17 | 1986-03-17 | Data transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62216457A true JPS62216457A (en) | 1987-09-24 |
Family
ID=13090797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5866286A Pending JPS62216457A (en) | 1986-03-17 | 1986-03-17 | Data transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62216457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5796279A (en) * | 1993-10-19 | 1998-08-18 | Tokyo Tsuki Co., Ltd. | DC application circuit with suppressed DC magnetization |
| GB2400245A (en) * | 2003-04-01 | 2004-10-06 | Power Gems Ltd | Ignition system for a high-frequency high-intensity discharge lamp system |
-
1986
- 1986-03-17 JP JP5866286A patent/JPS62216457A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5796279A (en) * | 1993-10-19 | 1998-08-18 | Tokyo Tsuki Co., Ltd. | DC application circuit with suppressed DC magnetization |
| GB2400245A (en) * | 2003-04-01 | 2004-10-06 | Power Gems Ltd | Ignition system for a high-frequency high-intensity discharge lamp system |
| GB2400245B (en) * | 2003-04-01 | 2005-09-28 | Power Gems Ltd | Ignition system for a high-frequency high-intensity discharge lamp system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6414578B1 (en) | Method and apparatus for transmitting a signal through a power magnetic structure | |
| US5999066A (en) | Interface module for a sending section and a receiving section | |
| US6919775B2 (en) | Network coupler | |
| US4951312A (en) | Balanced transmission device | |
| JPH0671343B2 (en) | Vertical and horizontal current measurement circuit in 2-wire transmission line | |
| JPS62216457A (en) | Data transmission equipment | |
| JPS60140997A (en) | Pulse/dc superposing circuit in electronic key telephone device | |
| US3597546A (en) | Acoustical coupling system for data communication equipment | |
| JP2009165043A (en) | Asymmetric full-duplex transmission device | |
| JPH0613239A (en) | Planar transformer | |
| JPS6347033B2 (en) | ||
| JPS6230546B2 (en) | ||
| US1188002A (en) | Telephone system. | |
| JP2005191652A (en) | Adsl adaptor | |
| JPH0335623A (en) | Carrier signal coupling circuit for distribution line | |
| JPS6365759A (en) | Calling current supply circuit | |
| JPS6246360Y2 (en) | ||
| SU374759A1 (en) | DEVICE OF INDICATION OF EMPLOYMENT OF THE SUBSCRIBER TELEPHONE LINE | |
| US3404238A (en) | Telephone substation miniaturization circuit | |
| SU429554A1 (en) | TELEPHONE APPARATUS | |
| JPH0542481Y2 (en) | ||
| JPH01264352A (en) | Communication equipment | |
| US2069838A (en) | Communication system | |
| JPS5825755A (en) | Communication terminal circuit | |
| DE10112544A1 (en) | Built-in micro speaker for wireless communication devices |