Automotive Transient Immunity Generators

Automotive EMC test equipment is required to meet ISO 7637-2, generating the electrical transients applied to supply lines and assemblies used for cars and other vehicles. Transient immunity testers, pulse generators, and power supply terminals are the key instruments required to accomplish this testing.

The EMC Shop stocks a wide selection of a...

Automotive EMC test equipment is required to meet ISO 7637-2, generating the electrical transients applied to supply lines and assemblies used for cars and other vehicles. Transient immunity testers, pulse generators, and power supply terminals are the key instruments required to accomplish this testing.

The EMC Shop stocks a wide selection of automotive EMC test equipment for compliance and pre-compliance testing. Rent or buy automotive EMC generators for individual tests or multifunction generators to complete an assortment of tests in a compact solution. Most systems can be easily upgraded to include additional tests as required.

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Automotive EMC test generators are typically benchtop, but heavy equipment. When doing testing on three phase power lines systems usually require much larger coupling/decoupling networks which substantially increase system size. EM test environments with ground planes with connections to earth are required to safely use transient generators.



Common Automotive EMC Compliance Tests

ISO and SAE

Pulse 1. A simulation of transients due to supply disconnection from inductive loads; it applies to a DUT if as used in the vehicle, it remains connected directly in parallel with an inductive load. 

Pulse 2a. Simulates transients due to a sudden interruption of currents in a device connected in parallel with the DUT due to the inductances of the wiring harness.

Pulse 2b. Simulates transients from DC motors acting as generators after the ignition is switched off.

Pulse 3a/3b. Occurs as the result of switching processes. The characteristics of this pulse are influenced by distributed capacitance and inductance of the wiring harness.

Pulse 4. The voltage reduction caused by energizing the starter motor circuits of the internal combustion engines. Pulse 4 variants. Most manufacturer variations of pulse four are generally much more complicated. For example, Ford requires up to four arbitrary generators with four outputs to be perfectly synchronized. 

Pulse 5. Simulation of a load dump transient occurring in the event of a discharged battery being disconnected while the alternator is generating charging current with other loads remaining on the alternator circuit at this moment. Magnetic field immunity. Simulates magnetic fields generated by electric motors, daytime running lamps, etc. for DUTs with magnetically sensitive devices. Transformer coupled sine waves. Sinusoidal noise coupled on battery lines. Often referred to as “ground shift”.

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Automotive Transient Immunity Generators There are 35 products.

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Showing 1 - 12 of 35 items
    • LD 200N Load Dump generator for ISO 7637 Pulses 5A, 5B, 7
    • VDS 200N50 Voltage Drop Simulator for ISO 7637  Pulses 2B and 4
    • UCS 200N Auto Transient/EFT Simulator for ISO 7637 Pulses 1, 2, 3A/3B
    • Load Dump CLD Module enables the LD 200N to generate clipped load dump pulses
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    • Economic Alternative for Automotive EMC Compliance
    • Meets ISO 7637 Pulses 1, 2a, 3a and 3b
    • Built-in EFT/Burst generator module
    • Built-in Micropulse generator module (ISO 7637, JASO, SAE and NISSAN)
    $1,875.00
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    • Standalone test generator for voltage dips and interruptions
    • Rise/fall time <1us
    • Electronic short-circuit protection
    • Rated voltage 80V DC
    • Front panel operation
    • Standard Test routines
    • USB and GPIB interfaces
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    • MT 5511 Micro Transients
    • FT 5531 Fast Transients
    • LD 5550 Load Dump Generator
    • Built-in 100 A coupler/battery switch
    • Contains space for up to three transient modules
    • Supports USB and GPIB
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    • ISO 16750-2 TEST A/B
    • ISO 7637-2 P5a/P5b
    • Generates clipped load dump pulse 
    • internal adjustable source impedance 
    • Pulse duration up to 1200ms (internal resistance more than 2 Ω)
    • Comply with most international standards and car manufacturer standards 
    • Built-in 60V/30A coupler 
    • With the function of current detection and over current protection 
    • Ethernet, RJ 45, PC control

    $1,950.00
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    • ISO PULSE 6 (12V/24V)
    • GOST PULSE 1B (24V)
    • Standalone test generator 
    • Test Voltage up to 1,100V
    • Includes 30, 50, 100, 150 and 200ohm source impedance
    • Built-in electronic battery switch
    • Built-in CDN 60V/25A DC
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    • Load Dump generator according to ISO 7637, ISO 16750-2, SAE J1113, SAE J1455, JASO, Nissan and most car manufacturer requirements 
    • Generates Clipped Load Dump pulses 
    • Built-in 0.5 - 38 Ohm source impedance, selectable in 0.1 Ohm steps 
    • Pulse duration up to 1,200ms
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    • Economic Alternative for Automotive EMC Compliance
    • Meets ISO 7637 Pulses 1, 2a, 3a aand 3b
    • Built-in EFT/Burst generator module
    • Built-in Micropulse generator module (ISO 7637, JASO, SAE and NISSAN)
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    • Simulator and power amplifier
    • Up to 60 Volts, 30 Amps
    • ISO 7637-2
    • ISO 16750-2
    • ISO 11452-8
    • Pulse 2b, Pulse 4
    • battery supply simulation and DC voltage source
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    • Built-in EFT/Burst generator module
    • Built-in Micropulse generator module (ISO 7637, JASO, SAE and NISSAN)
    • Built-in coupling/decoupling network, 80V/50A, 100A@500ms
    • Built-in battery switch
    • Overcurrent protection
    • USB and GPIB-Bus
    • Emergency stop
    • Software for Windows Vista & Windows 7
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    • ACS60C30 & DCP60C30 Package
    • Battery Supply Simulator and Power Amplifier
    • Up to DC 60V, 30 Amps
    • ISO 7637-2
    • ISO 16750-2
    • ISO 11452-8
    • Pulse 2b, Pulse 4
    • battery supply simulation and DC voltage source
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    • MT 5511 Micro Transients
    • FT 5531 Fast Transients
    • LD 5550 Load Dump Generator
    • More plug in modules are available depending on testing requirements
    • Controlled via PC with included Software
    • Built-in 100 A coupler/battery switch
    • Contains space for up to five transient modules
    • Supports USB and GPIB
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Showing 1 - 12 of 35 items