TEKBOX TBBCI1-800K420 Bulk Current Injection Probe Instruction Manual
- June 13, 2024
- TEKBOX
Table of Contents
V1.1
TBBCI1-800K420
Bulk Current Injection Probe
Introduction
The TBBCI1-800K420 is a snap-on Bulk Current Injection probe, expanding the
Tekbox product range of affordable EMC pre-compliance test equipment.
The BCI probe has been designed primarily for conducted immunity testing of
automotive products in the frequency range 1 MHz to 400 MHz, according to
standard ISO11452-4. The insertion loss is 5 dB for most of its bandwidth. In
the frequency range 250 kHz to 230 MHz it is compliant with the insertion loss
specification of ISO11452-4. The probe is individually characterized and
usable in the frequency range 10 kHz – 450 MHz. The probe can be used to
inject severity levels I (60mA), II (100mA, III (150mA), IV (200mA) and
customer specific severity level V up to 350 mA.
The probe can also be used for RF current monitoring applications.
Picture 1: TBBCI1-800K420 Bulk Current Injection probe
The aperture of the RF current monitoring probe is 27 mm. The typical insertion loss is 5 dB and the typical transfer impedance is 26 dB Ohm.
Specification
Compliance:| ISO 11452-4; IEC / EN 61000-4-6 insertion loss specification for
BCI clamps above 250 kHz
---|---
Characterized freq. range:| 10 kHz to 500 MHz
Insertion loss:| 5 dB typ.; 50 Ohm system (100 Ohm loop impedance)
Transfer impedance:| 29 dB Ohm typ.; 50 Ohm system (100 Ohm loop impedance)
Power rating:| capable of injecting severity levels I, II, III, IV according
to ISO 11452 and customer specified level V up to 350 mA
Max. core temperature:| 80 °C
Connector type:| N female
Aperture diameter:| 27 mm
Outside diameter:| 92 mm
Height:| 76 mm
Weight:| 1.2 kg
Transfer impedance
Figure1: typical insertion loss and transfer impedance: 1 kHz to 1 GHz logarithmic, 100 Ohm loop impedance
Insertion loss and transfer impedance table
The table below shows typical insertion loss and transfer impedance data of a TBBCI1-800K420 BCI probe. Each current probe is delivered with its corresponding measurement protocol. This data can be used to calculate the required power for immunity testing or for the creation of a correction file for EMCview or similar EMC measurement software. The transfer impedance in dBΩ subtracted from the analyzer reading in dBµV gives the corrected reading in dBµA.
Frequency [MHz]| Insertion loss [dB]| Trans-impedance [dBΩ| Frequency [MHz]|
insertion loss [dB]| Trans-impedance [dBΩ]
---|---|---|---|---|---
0.01| -41,75| -7,75| 130| -4,34| 29,66
0.02| -35,70| -1,70| 140| -4,34| 29,66
0.03| -32,17| 1,83| 150| -4,36| 29,64
0.04| -29,68| 4,32| 160| -4,39| 29,61
0.05| -27,75| 6,25| 170| -4,41| 29,59
0.06| -26,18| 7,82| 180| -4,45| 29,55
0.07| -24,85| 9,15| 190| -4,51| 29,49
0.08| -23,71| 10,29| 200| -4,56| 29,44
0.09| -22,70| 11,30| 210| -4,61| 29,39
0.1| -21,80| 12,20| 220| -4,66| 29,34
0.2| -16,04| 17,96| 230| -4,69| 29,31
0.3| -12,88| 21,12| 240| -4,72| 29,28
0.4| -10,85| 23,15| 250| -4,73| 29,27
0.5| -9,45| 24,55| 260| -4,73| 29,27
0.6| -8,45| 25,55| 270| -4,71| 29,29
0.7| -7,72| 26,28| 280| -4,69| 29,31
0.8| -7,19| 26,81| 290| -4,66| 29,34
0.9| -6,82| 27,18| 300| -4,62| 29,38
1| -6,54| 27,46| 310| -4,58| 29,42
2| -5,73| 28,27| 320| -4,55| 29,45
3| -5,56| 28,44| 330| -4,52| 29,48
4| -5,47| 28,53| 340| -4,52| 29,48
5| -5,40| 28,60| 350| -4,54| 29,46
6| -5,34| 28,66| 360| -4,61| 29,39
7| -5,29| 28,71| 370| -4,73| 29,27
8| -5,24| 28,76| 380| -4,91| 29,09
9| -5,19| 28,81| 390| -5,15| 28,85
10| -5,14| 28,86| 400| -5,51| 28,49
20| -4,82| 29,18| 410| -6,05| 27,95
30| -4,70| 29,30| 420| -6,77| 27,23
40| -4,61| 29,39| 430| -7,57| 26,43
50| -4,56| 29,44| 440| -8,33| 25,67
60| -4,50| 29,50| 450| -9,26| 24,74
70| -4,47| 29,53| 460| -11,03| 22,97
80| -4,43| 29,57| 470| -14,36| 19,64
90| -4,39| 29,61| 480| -19,31| 14,69
100| -4,38| 29,62| 490| -24,65| 9,35
110| -4,36| 29,64| 500| -28,97| 5,03
120| -4,34| 29,66| | |
Table1: Insertion loss and transfer impedance: 10 kHz to 500 MHz, typical data
RF forward power requirements
ISO 11452-4 specifies BCI severity test levels as displayed in Table 2 and Figure 2:
Frequency band [MHz]| Test level I [mA]| Test level II [mA]| Test level II
[mA]| Test level VI [mA]| Test level V [mA]
---|---|---|---|---|---
1- 3| 60 x
f [MHz]/3| 100 x
f [MHz]/3| 150 x
f [MHz]/3| 200 x
f [MHz]/3| Specific values agreed between the users of this part of ISO
11452
3 – 200| 60| 100| 150| 200
200 – 400| 60 x 200/
F[MHz]| 100 x 200/
F[MHz]| 150 x 200/
F[MHz]| 200 x 200/
F[MHz]
Table 2: BCI test severity levels
Figure 2: Current level test limits
Figure 3: Substitution calibration method set-up example
Maximum frequency step sozes should be not greater than the maximum frequency step sizes used in testing, and shown in Table 2.
Frequency band [MHz] | 1 < f ≤ 10 | 10 < f ≤ 200 | 200 < f ≤ 400 |
---|---|---|---|
Linear step [MHz] | 1 | 5 | 10 |
Figure 4: corresponding required RMS forward power into the TBBCI1-800K420 BCI probe
Note that the power is given as RMS power. The PA has to be able to deliver a 5.1 dB higher peak power to achieve the required RMS power for an 80% AM modulated signal. At injected currents above 350 mA, the core will go into saturation.
Figure 5: Core temperature increase over time
Accessories
Tekbox supplies a calibration fixture for the TBBCI1 series of snap on BCI probes:
Picture 2: TBBCI1-CAL BCI probe calibration fixture
In order to create a complete immunity test set-up, Tekbox supplies further accessories such as 150 Ohm to 50 Ohm transitions, attenuators, modulated wideband RF power amplifiers, RF current monitoring probes and EMCview PRO software for automated calibration and measurement.
Ordering Information
Part Number | Description |
---|---|
TBBCI1-800K420 | Snap on BCI probe, beech-wood box, calibration protocol |
TBBCI1-CAL | Calibration fixture for TBBCI1 current probe series |
TBCDN-50-150 | 50 Ohm to 150 Ohm adapter, N-male to N-female, 4W |
TBATT-6dB-10W | 6 dB attenuator, N-male to N-female, 10W |
TBATT-6dB-25W | 6 dB attenuator, N-male to N-female, 25W |
TBATT-6dB-50W | 6 dB attenuator, N-male to N-female, 50W |
TBATT-6dB-100W | 6 dB attenuator, N-male to N-female, 100W |
TBATT-30dB-10W | 30 dB attenuator, N-male to N-female, 10W |
TBATT-30dB-25W | 30 dB attenuator, N-male to N-female, 25W |
TBATT-30dB-50W | 30 dB attenuator, N-male to N-female, 50W |
TBATT-30dB-100W | 30 dB attenuator, N-male to N-female, 100W |
TBMDA5 | RF amplifier, 150kHz-400 MHz, 2W, AM/PM modulator |
TBMDA6 | RF amplifier, 150kHz-250 MHz, 25W, AM/PM modulator |
EMCview PRO | EMC software for emission and immunity testing |
History
Version | Date | Author | Changes |
---|---|---|---|
V 1.0 | 29.9.2022 | Mayerhofer | Creation of the preliminary document |
V 1.1 | 11-12-2022 | Mayerhofer | Chapter 5 updated |
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Factory 4, F4, Lot I-3B-1, Saigon Hi-Tech Park, Tan Phu Ward, District 9, Ho
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