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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

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 對射頻場感應的傳導騷擾的抗擾性試驗

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  1. 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

  2. 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

  3. 試驗等級 ***已上標示之電壓為有效值(rms)且未經調變

  4. 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

  5. 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:

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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 ^^

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. Electro- magnetic clamp • Useful for all kind of cables KEMZ accessories for level setting

  17. Set-up for the level setting at the EUT-port of CDN `s

  18. 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)

  19. Example for level setting equipment • Universal- solution 150 Ohm termination TRA U150 150 to 50 Ohm adapter CAL U100 Common mode adapter SARxxxx

  20. Example for level setting equipment • Special- solution 150 to 50 Ohm adapter CAL xxxx 150 Ohm termination TRA xxxx

  21. Test generator Test generator in general AM- Modulator Attenuator variable Power amplifier 6dB attenuator RF-input coupling device Signal generator

  22. Compact generator NSG4070外觀

  23. 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

  24. 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

  25. 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

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