JPS6326779Y2 - - Google Patents
Info
- Publication number
- JPS6326779Y2 JPS6326779Y2 JP844283U JP844283U JPS6326779Y2 JP S6326779 Y2 JPS6326779 Y2 JP S6326779Y2 JP 844283 U JP844283 U JP 844283U JP 844283 U JP844283 U JP 844283U JP S6326779 Y2 JPS6326779 Y2 JP S6326779Y2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- ground
- voltage line
- line
- battery
- 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
Links
- 238000005259 measurement Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
【考案の詳細な説明】
本考案は、電子機器に因りその電源回路網に生
じてラジオおよびテレビの雑音の原因となる雑音
電流を測定するために用いられる擬似電源回路網
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an artificial power network used to measure noise currents caused by electronic equipment in its power network and which cause noise in radios and televisions.
自動車において電子機器はワイヤハーネスを介
して直流電源（バツテリ）へ接続されており、ラ
ジオの雑音原因となる雑音電流がワイヤハーネス
に生じている。このような雑音電流を測定するた
めに用いられる従来の擬似電源回路網ではワイヤ
ハーネスのインピーダンスに等しいインピーダン
ス（ワイヤハーネスの抵抗成分はほぼ零であるの
で、ワイヤハーネスのインダクタンスに等しいイ
ンダクタンス）を有するインダクタンス素子が電
圧線に挿入されているが、アース線には何も挿入
されずアース線のインピーダンスは零として設計
されている。したがつて擬似電源回路網のアース
線に流れる雑音電流がワイヤハーネスに実際に流
れる雑音電流と等しくなく、雑音電流の測定精度
が悪くなつている。 In automobiles, electronic devices are connected to a DC power source (battery) via a wire harness, and noise current that causes radio noise is generated in the wire harness. In the conventional artificial power supply network used to measure such noise current, an inductance with an impedance equal to the impedance of the wire harness (the resistance component of the wire harness is almost zero, so an inductance equal to the inductance of the wire harness) is used. The element is inserted into the voltage line, but nothing is inserted into the ground wire, and the impedance of the ground wire is designed to be zero. Therefore, the noise current flowing through the ground wire of the artificial power supply network is not equal to the noise current actually flowing through the wire harness, and the measurement accuracy of the noise current is deteriorated.
本考案の目的はアース線に流れる雑音電流を実
際の電源回路網のアース線に流れる雑音電流に等
しくさせて、電子機器のために生じる雑音電流を
正確に測定できるようにした擬似電源回路網を提
供することである。 The purpose of this invention is to create a pseudo power supply network that makes it possible to accurately measure the noise current generated by electronic equipment by making the noise current flowing through the ground wire equal to the noise current flowing through the ground wire of the actual power supply network. It is to provide.
この目的を達成するために、本考案は、バツテ
リとワイヤハーネスの等価回路で構成された車両
におけるノイズ測定用擬似電源回路網において、
前記ワイヤハーネスはバツテリと電子機器とを接
続する電圧線及びアース線の双方にそれぞれ挿入
されたインダクタンス素子と、バツテリ側におい
て電圧線とアース線との間に接続された容量素子
と、互いに直列接続され電子機器側において電圧
線とアース線との間に接続された容量素子及び抵
抗素子と、該容量素子と抵抗素子の中間から引出
された測定端子と、を含んでいることを特徴とす
る。 In order to achieve this objective, the present invention has developed a pseudo power supply circuit network for measuring noise in a vehicle, which is composed of an equivalent circuit of a battery and a wire harness.
The wire harness has an inductance element inserted into both the voltage line and the ground line that connect the battery and the electronic device, and a capacitance element connected between the voltage line and the ground line on the battery side, which are connected in series with each other. The device is characterized in that it includes a capacitive element and a resistive element connected between a voltage line and a ground line on the electronic equipment side, and a measurement terminal drawn out from between the capacitive element and the resistive element.
このような擬似電源回路網のアース線にもイン
ダクタンス素子が挿入されて、このアース線のイ
ンピーダンスが実際の電源回路網におけるアース
線のインピーダンスに等しくされるので、アース
線に流れる雑音電流が実際の電源回路網のアース
線に流れる雑音電流に等しくなり、雑音電流の正
確な測定が可能となる。 An inductance element is also inserted into the ground line of such a pseudo power supply network, and the impedance of this ground line is made equal to the impedance of the ground line in the actual power supply network, so that the noise current flowing through the ground line is reduced to the actual value. It is equal to the noise current flowing in the ground wire of the power supply network, allowing accurate measurement of the noise current.
以下、図面に基づき本考案の好適な実施例を説
明する。 Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
図面には本考案に係る車両におけるノイズ測定
用擬似電源回路網の概略構成が示されており、こ
の擬似電源回路網は蓄電池（バツテリ）５とワイ
ヤハーネスの等価回路で構成されている。 The drawing shows a schematic configuration of a pseudo power supply circuit network for noise measurement in a vehicle according to the present invention, and this pseudo power supply network is composed of an equivalent circuit of a storage battery 5 and a wire harness.
本考案の特徴的なことは、前記ワイヤハーネス
はバツテリと電子機器とを接続する電圧線及びア
ース線の双方にそれぞれ挿入されたインダクタン
ス素子と、バツテリ側において電圧線とアース線
との間に接続された容量素子と、互いに直列接続
され電子機器側において電圧線とアース線との間
に接続された容量素子及び抵抗素子とを含んでい
ることである。 A characteristic feature of the present invention is that the wire harness has an inductance element inserted into both the voltage line and the ground line that connect the battery and the electronic device, and a connection between the voltage line and the ground line on the battery side. and a capacitive element and a resistive element that are connected in series with each other and connected between a voltage line and a ground line on the electronic equipment side.
即ち、本実施例において、電子機器１の電圧端
子およびアース端子は擬似電源回路網２の電圧線
３およびアース線４を介して直流電源としての蓄
電池５の電圧側およびアース側へ接続されてい
る。擬似電源回路網２内では、インダクタンス素
子としてのコイル６，７がそれぞれ電圧線３およ
びアース線４に挿入され、コンデンサ８は蓄電池
５側において電圧線３とアース線４との間に接続
され、別のコンデンサ９と抵抗１０とは互いに直
列接続されて電子機器１側において電圧線３とア
ース線４との間に接続されている。 That is, in this embodiment, the voltage terminal and the ground terminal of the electronic device 1 are connected to the voltage side and the ground side of the storage battery 5 as a DC power source via the voltage line 3 and the ground line 4 of the pseudo power supply network 2. . In the pseudo power supply network 2, coils 6 and 7 as inductance elements are inserted into the voltage line 3 and the ground line 4, respectively, and the capacitor 8 is connected between the voltage line 3 and the ground line 4 on the storage battery 5 side. Another capacitor 9 and a resistor 10 are connected in series with each other and are connected between the voltage line 3 and the ground line 4 on the electronic device 1 side.
この場合、コイル６，７のインダクタンスやコ
ンデンサ８，９の容量、及び抵抗１０の抵抗値は
実際の電源回路網としてのワイヤハーネスの回路
定数に一致するように設定されている。 In this case, the inductance of the coils 6 and 7, the capacitance of the capacitors 8 and 9, and the resistance value of the resistor 10 are set to match the circuit constants of the wire harness as an actual power supply circuit network.
また、本考案においては、前記容量素子９と抵
抗素子１０の中間から引き出された測定端子を含
んでいることを特徴とする。 Furthermore, the present invention is characterized in that it includes a measurement terminal drawn out from between the capacitive element 9 and the resistive element 10.
即ち、高周波測定器１１の一方の入力端子には
コンデンサ９と抵抗１０との中間から引き出され
た測定端子１２が接続され、他方の入力端子には
アース線４の電子機器１側における端部が接続さ
れている。 That is, one input terminal of the high frequency measuring device 11 is connected to the measurement terminal 12 drawn out from between the capacitor 9 and the resistor 10, and the other input terminal is connected to the end of the ground wire 4 on the electronic device 1 side. It is connected.
以上説明したように、従来の擬似電源回路網で
はアース線４にコイル７が挿入されておらず、ア
ース線４のインダクタンスが零に設定されている
ために、アース線４に流れる雑音電流と実際の電
源回路網のアース線に流れる雑音電流に差があつ
た。本考案ではアース線４のインダクタンスが実
際の電源回路網のアース線のインダクタンスと一
致するためにアース線４の雑音電流が実際のもの
と一致する。したがつて電子機器１のために電源
回路網に生じる雑音電流が、擬似電源回路網に接
続した高周波雑音測定器１１により正確に測定で
きる。 As explained above, in the conventional artificial power supply network, the coil 7 is not inserted into the ground wire 4 and the inductance of the ground wire 4 is set to zero, so the noise current flowing through the ground wire 4 and the actual There was a difference in the noise current flowing through the ground wire of the power supply circuit network. In the present invention, the inductance of the ground wire 4 matches the inductance of the ground wire of the actual power supply circuit, so that the noise current of the ground wire 4 matches the actual one. Therefore, the noise current generated in the power supply network due to the electronic device 1 can be accurately measured by the high frequency noise measuring device 11 connected to the pseudo power supply network.
図面は本考案の実施例の構成図である。
２……擬似電源回路網、３……電圧線、４……
アース線、６，７……コイル、１２……測定端
子。
The drawing is a block diagram of an embodiment of the present invention. 2...pseudo power supply network, 3...voltage line, 4...
Ground wire, 6, 7... Coil, 12... Measurement terminal.
Claims (1)
れた車両におけるノイズ測定用擬似電源回路網に
おいて、 前記ワイヤハーネスはバツテリと電子機器とを
接続する電圧線及びアース線の双方にそれぞれ挿
入されたインダクタンス素子と、 バツテリ側において電圧線とアース線との間に
接続された容量素子と、 互いに直列接続された電子機器側において電圧
線とアース線との間に接続された容量素子及び抵
抗素子と、 該容量素子と抵抗素子の中間から引出された測
定端子と、 を含んでいることを特徴とする車両におけるノ
イズ測定用擬似電源回路網。[Claim for Utility Model Registration] In a pseudo power supply circuit network for measuring noise in a vehicle that is composed of an equivalent circuit of a battery and a wire harness, the wire harness is connected to both a voltage line and a ground line that connect the battery and electronic equipment. An inductance element inserted respectively, a capacitive element connected between the voltage line and the ground line on the battery side, and a capacitive element connected between the voltage line and the ground line on the electronic equipment side connected in series with each other. and a resistance element; and a measurement terminal drawn out from between the capacitance element and the resistance element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP844283U JPS59115358U (en) | 1983-01-26 | 1983-01-26 | Artificial power supply network for noise measurement in vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP844283U JPS59115358U (en) | 1983-01-26 | 1983-01-26 | Artificial power supply network for noise measurement in vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59115358U JPS59115358U (en) | 1984-08-03 |
| JPS6326779Y2 true JPS6326779Y2 (en) | 1988-07-20 |
Family
ID=30139931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP844283U Granted JPS59115358U (en) | 1983-01-26 | 1983-01-26 | Artificial power supply network for noise measurement in vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59115358U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4561961B2 (en) * | 2004-01-30 | 2010-10-13 | Ｔｄｋ株式会社 | Signal detection device |
-
1983
- 1983-01-26 JP JP844283U patent/JPS59115358U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59115358U (en) | 1984-08-03 |
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