LISN 线性阻抗稳定网络 / AMN 人工电源网络为被测设备 (EUT) 提供必要的电源电压(交流或直流)和电流。 耦合 EUT 产生的干扰电压并将其提供给接收器。 为被测设备 (EUT) 提供明确定义的射频阻抗, 防止来自电源的不必要的干扰(过滤器),保护电源免受 EUT 产生 的有害干扰电压的影响。 图 1:测量设置传导干扰 我们可以区分三种类型的LISN:V-、T-和Delta-LISN |
图1
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图 2 显示了具有单独接地的两线系统的电压关系。V-LISN 分别测量两条线路 L1 和地面或 L2 和地面之间的不对称干扰电压。 V-LISN 也称为 V-ANM(人工电源网络)。 V-LISN 是迄今为止最常用的 LISN。 有两种阻抗不同的 V-LISN。具有 5μH 电感的 V-LISN(CISPR 16-1-2、CISPR 25、ISO 7637、DO160)通常用于测量连接到带有 DC 或 400 Hz 车载电源的车辆、船只和飞机的设备。根据 CISPR 16-1-2、MIL STD 461 和 ANSI C63.4,另一种类型为50 µH 的 V-LISN 旨在在 50 Hz 或 60 Hz 的电源频率下运行。 T-ISN(图 2 右侧)测量非对称干扰电压(共模电压)并将其提供给 EMI 接收器。 T-ISN 通常用于测量连接到对称线路的电信和数据传输设备,例如:双绞线... |
图2
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V-LISN CISPR 16-1-2 | CISPR 25 (汽车电子) | MIL 461 MIL 462 | Special - LISN |
Schwarzbeck LISN overview | |||||
Type | Topology | Impedance | Current max. | Paths | Options |
CISPR 16-1-2 | |||||
NSLK 8117 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 2 x 10 A | 2 | |
NSLK 8127 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 2 x 16 A | 2 | RC, PLC |
NSLK 8126 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 2 x 16 A Schuko | 4 | RC |
4 x 16 A CEKON | |||||
NSLK 8128 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 2 x 16 A Schuko and | 4 | RC |
4 x 32 A CEKON | |||||
NSLK 8163 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 4 x 64 A CEKON | 4 | RC |
NNLK 8121 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 4 x 50 (100) A | 4 | RC, Hochstrom, 400/700V, Lüfter |
NNLK 8122 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 2 x 50 A | 2 | |
NNLK 8129 | V-LISN | 50 µH || 50 Ω | 4 x 200 (300) A | 4 | RC, 400/700 V, Lüfter |
NNLK 8129-2 HV | V-LISN | 50 µH || 50 Ω | 2 x 200 (300) A | 2 | RC,TC |
NNLK 8130 | V-LISN | 50 µH || 50 Ω | 4 x 400 (500) A | 4 | RC |
NNLK 8140 | V-LISN | 50 µH || 50 Ω | 1 x 800 (1000) A | single | |
Automotive | |||||
NNHV 8123 | V-LISN | 5µH || 50 Ω | 70 (100) A | single | |
NNHV 8123-200 | V-LISN | 5µH || 50 Ω | 200 A | single | |
NNHV 8123-400 | V-LISN | 5µH || 50 Ω | 400 A | single | |
NNBM 8123-400R | V-LISN | (5µH + 1 Ω) || 50 Ω | 400 A | single | |
NNBM 8124 | V-LISN | (5µH + 1 Ω) || 50 Ω | 70 (100) A | single | N-connector |
NNBM 8124-200 | V-LISN | (5µH + 1 Ω) || 50 Ω | 200 A | single | N-connector |
NNBM 8124-400 | V-LISN | (5µH + 1 Ω) || 50 Ω | 400 A | single | N-connector |
NNBM 8124-800 | V-LISN | (5µH + 1 Ω) || 50 Ω | 800 A | single | N-connector |
NNBM 8126-A 890 | V-LISN | 5 µH || 50 Ω | 70 (100) A | single | DO-160 |
NNBM DO160-1500 | V-LISN | 5 µH || 50 Ω | 200 (280) A | single | |
BAN 8508 | 8 A (DC) | single | |||
BAN 8530 | 30 A (DC) | single | |||
MIL | |||||
NNBL 8225 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 20 A | single | |
NNBL 8226 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 70 (100) A | single | |
NNBL 8226-HV | V-LISN | (50 µH + 5 Ω) || 50 Ω | 70 (100) A | single | |
NNBL 8226-2 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 70 (100) A | 2 | |
NNBL 8229-HV | V-LISN | (50 µH + 5 Ω) || 50 Ω | 200 A | single | |
NNBL 8230 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 300 A | single | |
NNBL 8240 | V-LISN | (50 µH + 5 Ω) || 50 Ω | 800 (1000) A | single | |
ISN | |||||
NTFM 8131 | ISN | 150 Ω ± 10% | 3 A (AC) | 2 | |
NTFM 8158 | ISN | 150 Ω ± 20 % | 600 mA DC (pair) | 2 | |
CAT5 8158 | ISN | 150 Ω± 20 % | 600 mA DC (pair) | 2 | |
CAT3 8158 | ISN | 150 Ω± 20 % | 600 mA DC (pair) | 2 | |
ISN S8 | ISN | 150 Ω ±20 % | 1 A (DC) | 8 | |
150 Ω+ 60 Ω/-45 Ω | |||||
ISN S1 | ISN | 150 Ω±20 Ω | 1 A (DC) | single | |
150 Ω + 60 Ω /-45 Ω | |||||
ISN T4A | ISN | 150Ω ± 20Ω (150kHz~30MHz) 150Ω ±40Ω (30 MHz~80 MHz) |
600mA(line) 1200mA(pair) |
2 | |
ISN T8 | ISN | 150kHz~30MHz | 600 mA (line), 1200 mA (pair) | 1-4 | |
ISN T8-Cat6 | ISN | 150kHz~80MHz | 600 mA (line), 1200 mA (pair) | 1-4 | |
Special - LISN | |||||
Pilot ISN | 150 Ω±20 Ω | 1.4 A DC | 2 | ||
ECSS LISN1 | (1.5 µH) || 50 Ω | 10A | 2 | ||
ECSS LISN 2 | (2 µH) || 50 Ω | 10A | 2 | ||
ECSS LISN 2 - 75A | (2 µH) || 50 Ω | 75 A | 2 | ||
ECSS LISN 3 | (0.7 µH) || 50 Ω | 10:00 AM | 2 | ||
NPLC 8500 | V-LISN | 1 Ω | 16 A | single | |
PVDC 8300 | PV-LISN Universal | 150 Ω common | 50 A (100 A with opt. fans) | 2 | Fans |
150 Ω differential | |||||
PVDC 8301 | PV-LISN Universal | 150 Ω common | 200 A | 2 | |
150 Ω differential | |||||
TEMP 8400 | Tempest-V-LISN | 1.4 kΩ | 16 A | 2 | TEMP 8401 |