ISO 7637-2

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Overview (DIY?)

The EMC Shop stocks automotive test equipment for compliance to ISO 7637-2. Buy, rent or lease turnkey test solutions with automated software for easy test setup and execution.

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Test Pulses

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 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. Sinusodial noise coupled on battery lines. Often referred to as ground shift.

ISO 7637-2 Automotive EMC Test Equipment

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ISO 7637-2 Categories

ISO 7637-2 Transient Pulse Generators
ISO 7637-2 Transient Pulse Generators
ISO 7637-2 Pulse 2B/4 Generators
ISO 7637-2 Pulse 2B/4 Generators
Pulse 3a, 3b
Pulse 3a, 3b

ISO 7637-2 Test Equipment, Systems & Solutions

  • EM Test MPG 200 Automotive Micropulse Generator up to 1.1 kV, built in CDN 60V/25A DC - The EMC Shop

    EM Test MPG 200 Automotive Micropulse Generator up to 1.1 kV, built in CDN 60V/25A DC

    SKU: sku-818

    Applications: Automotive Electrical Disturbances, EV EMC Testing
    Standards Met: ISO 7637
    Max EUT DC Voltage (w/ Built In CDN): 60 Volts
    Max EUT DC Current (w/ Built In CDN): 25 Amps
    Peak Inrush Current Capability: 50 Amps
    Pre-Programmed Pulses: ISO 7637-2 (Pulse 1 and 6) "Output=DUT supply +/- Safety laboratory connectors Coupling To the battery +line Decoupling Via diode and battery supply switch DUT supply Max. 60V/25A"
    Weight: approx. 20kg
    Dimensions: 19"/6HU
    General Data: Technical Details
    Input: 115/230V +10/-15%
    ISO PULSE 6 (12V) AS PER ISO 7637-1:1990: Voltage (o.c.) 25V - 400V Rise time 60us +0%/-50% (10 - 90%) Pulse duration 300us ± 10% (10 - 10%) Int. resistor 30ohm ± 10%
    Output-2: GOST PULSE 1B (24V), ISO PULSE 6 (12V/24V) and more
    Repetition rate: 300us ± 10% (10 - 10%)
    Test Routines: Quick Start, User Defines Routines, Standards Test Routines Service
    Test voltage: Test Voltage up to 1,100V and GOST PULSE 1B (24V), ISO PULSE 6 (12V/24V)
    Trigger: automatic, manual, external
    $30,000.00

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