en61000 4 6 immunity to conducted disturbances induced by radio frequency fields n.
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EN61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields å°å°„é »å ´æ„Ÿæ‡‰çš„å‚³å°Žé¨·æ“¾çš„æŠ PowerPoint Presentation
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EN61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields 對射頻場感應的傳導騷擾的æŠ

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EN61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields å°å°„é »å ´æ„Ÿæ‡‰çš„å‚³å°Žé¨·æ“¾çš„æŠ - PowerPoint PPT Presentation


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EN61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields 對射頻場感應的傳導騷擾的抗擾性試驗. Provided By PH Yuan. 目的及應用範圍. 應用範圍 : 9KHz to 80MHz 對來自射頻發射機的電磁場 , 作用於電氣 , 電子設備的電源線 , 通訊線 , 接續電纜等連接線路上而產生之傳導騷擾之影響 - 規定了試驗之方法與試驗之等級. 試驗等級. *** 已上標示之電壓為有效值 (rms) 且未經調變. 試驗之設備及術語.

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en61000 4 6 immunity to conducted disturbances induced by radio frequency fields

EN61000-4-6Immunity to conducted disturbances, induced by radio-frequency fields對射頻場感應的傳導騷擾的抗擾性試驗

Provided By

PH Yuan

slide2
目的及應用範圍
  • 應用範圍:

9KHz to 80MHz

對來自射頻發射機的電磁場,作用於電氣,電子設備的電源線,通訊線,接續電纜等連接線路上而產生之傳導騷擾之影響-規定了試驗之方法與試驗之等級

slide3
試驗等級

***已上標示之電壓為有效值(rms)且未經調變

slide4
試驗之設備及術語
  • Clamp injection 鉗注入

以電流注入裝置鉗合在電纜上實現的

  • Current Clamp 電流鉗

以電纜次級繞組實現注入的電流變換器

  • Electromagnetic clamp 電磁鉗

由容性及感性耦合的注入裝置

  • Coupling Network 耦合網路

已規定之阻抗從一電路到另一個電路傳輸能量之電路

  • Decoupling Network 去耦合網路

防止施加於受試設備的測試信號影響非受試的其他裝置

slide5
耦合及去耦合網路
  • 為了使試驗信號完整地耦合到與受試設備相連的各種電纜上,必須採用耦合去耦合裝置,該裝置應在規定之頻率範圍內具有規定之共模阻抗,從受試設備端口看過去的共模阻抗應符合下列表所示之職:
slide6
單一受試設備試驗佈置

0.5m

0.1m<L<0.3m

至AE或通訊線路

平行線對

CDN T2

T2

0.5m

EUT

電源

至電源

CDN M2

T2

至AE

非屏蔽不平衡電纜

CDN AF2

T2

絕緣支架 h = 10cm

參考地平面

測試產生器

slide7
注入式方式
  • 直接注入裝置:

來自試驗信號產生器之信號通過100Ώ電阻注入到同軸電纜之屏蔽層上

  • 耦合去耦合網路:

這些網路包含的耦合去耦合網路是被裝在一個盒子中,可被用於特定之非屏蔽(unshield)電纜,例如:CDN-M1,M2,M3,T2,T4,T8,AF2網路不應對信號的功能產生影響

slide8

Coupling devices

-Coupling- Decoupling Networks (CDN)

耦合非耦合裝置

-Electro-Magnetic clamps (EM clamp)

電磁夾具

-Current injection clamp

電流注入式夾具

- RF-signal generator

-Modulation source

-Variable attenuator

-Broadband power amplifier

-6 dB attenuators

-RF-cables

Test generator

CS 測試設備應具有

Level setting

-150/50 Ohm-adaptors

-Calibration jig

-Current probe

-Power- or voltage-meter

Utilities

-Software to control the tests

-RF-switchboard

-Equipment for EUT-monitoring

slide9

選擇注入干擾源之依循方式

適用CDNs?

Use CDNs

6.22

Use clamp

injection

6.23

Use direct

injection

6.21

(for sceened

cable only)

or

Yes

No

Use CDN Sxxx-types

Are the cable screened?

包覆線嗎?

Check following requirements:

1. 150 Ohm AE-impedance realized?

2. Cable 30mm to 50mm above Ground-plate?

3. Is the AE sufficiently immune?

4. Cable length between EUT an AE<1m

Yes

Use CDN Mxxx-types

Are the cable

power supply lines?

電源線嗎?

Can the

requirements

be met ?

Use CDN Txxx-types

Are the lines balanced?

平衡線嗎?

No

No

Use clamp injection

with EM-clamp KEMZ

or Current-clamp

Measure the current

with extra Current-probe

SMZ11

7.3

Use clamp injection

with EM-clamp KEMZ

or Current-clamp

7.2

Yes

Are the lines multi-wire

non-balanced?

多線非平衡線嗎?

Use CDN Axxx-types

No

Yes

No

Yes

Yes

slide10

使用 CDN 之好處

使用方便- Simple and reliable method of injecting RF-energy into the EUT-port, need no additional measurements during the test

Low input Power - Because CDN’s have low insertion loss

Required少許輸入能量即可 (0dB) for the disturbance signal

*****由於CDN有低插入損失(0dB)

多款適CDN可提供- 超過40款CDN供選擇測試

測試頻寬可達230MHz-法規僅說明到80MHz

^^

slide11
CDN 形式分類
  • S-Type -used for all screened and coaxial ports

使用於包覆隔離同軸電纜

  • M- Type -used for unscreenedAC/DC-power supply ports

使用於非隔離包覆之AC/DC電源線

  • AF-Type -used for all unscreened unbalanced lines

使用於非隔離非平衡線

  • T- Type -used for unscreened,balanced lines

使用於非隔離平衡線

cdn m types
CDN M1

CDN M2

CDN M3

CDN M4

CDN M5

for use on single conductor lines or (protective )earth lines

for use with two lines systems without PE

for normal 3 wire supply systems( line, neutral, PE)

for 3 phase systems (3 lines and PE)

for 3 phase systems ( 3 lines, neutral and protective earth

CDN M-Types
  • 使用於AC/DC電源線端
slide13

CDN S-Types

  • 適用於隔離,同軸電纜線
  • CDN S1 -BNC-connections, can be supplied for 50, 75 and 93 Ohm application
  • CDN S2 -2 line, uses a 3 pin audio sockets
  • CDN S4 -4 line, uses a 5 pin audio sockets
  • CDN S9 -9 line, uses a 9 pin D-type conn.
  • CDN S15 -15 line, uses a 15 pin D-type conn.
  • CDN S25 -25 line, uses a 25 pin D-type conn.
  • CDN S36 -36 line, uses a Centronics conn.
  • CDN ST08 -4 pairs of balanced lines, 9 pin D-type
  • CDN USB -Universal serial bus connector
cdn af types
CDN AF-Types
  • 適用於非隔離非平衡線
  • CDN A200 -2 line, uses 3 pin audio sockets
  • A2,3,4 -2, 3, 4 lines, uses 4mm sockets
  • A8,9,15,25 -8,9,15,25 lines,

uses selected pins of a D-type connector 25 pin

cdn t types

Coupling devices

CDN T-Types
  • Used for all unscreened balanced lines for telecommunication ports
  • T200 -1 pair, uses 4mm sockets
  • T400 -2pairs, uses 4mm sockets
  • T246* -1 pair, uses selected pins of a RJ45 connector
  • T411* -2 pairs, uses selected pins of a RJ11 connect.
  • T442-445* -2 pairs, uses selected pins of a RJ45 connect.

* High LCL of pairs

electro magnetic clamp
Electro- magnetic clamp
  • Useful for all kind of cables

KEMZ

accessories for level setting

equipment for the level setting at the eut port of cdn s
Equipment for the level setting at the EUT-portof CDN `s

必須有:

  • a 150 Ohm terminator for the AE-side for all unscreened ports
  • and a 150 to 50 Ohm adapter for the EUT-socket. (Both of them must be connected to the Common mode points)
example for level setting equipment
Example for level setting equipment
  • Universal- solution

150 Ohm termination

TRA U150

150 to 50 Ohm adapter

CAL U100

Common mode adapter

SARxxxx

example for level setting equipment1
Example for level setting equipment
  • Special- solution

150 to 50 Ohm adapter

CAL xxxx

150 Ohm termination

TRA xxxx

test generator in general

Test generator

Test generator in general

AM-

Modulator

Attenuator

variable

Power

amplifier

6dB

attenuator

RF-input

coupling

device

Signal

generator

universal test set up as project
Universal test set up as project

The pro’s: flexible solution, SW allow complex test set up with more then one port to be tested and EUT monitoring

The con’s: more expensive

universal cs test set up project
Universal CS test set up project

Parts of solution:

  • Coupling devices and utilities
  • Signal generator
  • Power amplifier
  • RF-power meter or RF-volt meter
  • RF-switchboard
  • 6dB-attenuators
  • Controlled by PC via IEEE 488-Bus or LAN
  • Software
example for the required input power
Example for the required input power

The pink colour curve describe the output power requirements

for the calibration of test set up (未經調變需要之功率)

The blue curve is calculated with additional 5,1 dB for 80% AM