Description
ISO 7637-4 Test System by BOLAB
The BOLAB ISO 7637-4 Test System is a cutting-edge, turnkey testing platform engineered for full compliance with ISO 7637-4 standards. Designed for electrical transient conduction testing along shielded high-voltage supply lines, it offers complete coverage of Pulse A and Pulse B disturbances for electric and hybrid vehicle components.
High-Voltage Transient Testing with Pulse A
Pulse A testing simulates switching noise caused by high-voltage MOSFETs and IGBTs in automotive systems. This test setup delivers sinusoidal bursts between 100 kHz and 10 MHz using a 75W RF amplifier, producing clean, repeatable waveforms. The system includes an interference generator, directional coupler, and balun for single or dual-phase burst coupling.
Key Pulse A Capabilities:
- Burst waveform: 1, 2, 5, or 10 μs
- Frequency range: 100 kHz to 10 MHz
- Configurable: 1–1000 cycles, 1–255 packets
- Generator output: Up to 100 Vpp
- Real-time triggering and peak detection
Sinusoidal Immunity Testing with Pulse B
The Pulse B module enables low-frequency sinusoidal testing for components affected by harmonics from power grids and electric drive systems. This continuous sine wave output ranges from 3 kHz to 300 kHz, with up to 30 VRMS output voltage and 16 ARMS current capacity. An integrated 1:1 transformer protects high-voltage circuits and ensures safety and isolation.
Pulse B Highlights:
- Frequency range: 3 kHz to 300 kHz
- Output voltage: 30 VRMS (up to 250 kHz), 25 VRMS (250–300 kHz)
- Output current: 16 ARMS
- Overvoltage protection and system stability
Technical Overview Table
Component | Specifications |
RF Generator | 100 kHz–10 MHz, CW & Burst, USB/LAN interface |
RF Amplifier Output | 75W, 100 kHz–400 MHz |
Output Voltage (Pulse A) | Up to 100 Vpp |
Output Voltage (Pulse B) | Up to 30 VRMS |
Output Current | 16 ARMS (Pulse B) |
Burst Generator Cycles | 1–1000, adjustable burst settings |
Monitoring | Peak power meter, digital I/O, EUT interlock |
Control Software | WaveMaster (graphical waveform + DAQ) |
Safety Features | Overvoltage protection, galvanic isolation |
Power Supply Options | 27 kW or 36 kW dynamic DC supply |
Waveform Automation with WaveMaster Software
The test system is controlled by WaveMaster, BOLAB’s proprietary software suite that offers waveform creation, signal monitoring, and test automation. The software supports importing real oscilloscope signals, real-time graphical data display, and integration with test platforms like LabView, Python, and CANoe.
Scalable ISO 7637-4 Test Platform
BOLAB’s test system is fully modular and expandable. You can add:
- Additional burst generators or RF amplifiers
- High-voltage artificial networks (HV-AN)
- Shielded boxes and flange plates for better EMC protection
- Human-machine interfaces and safety relays
This makes the system suitable for a wide variety of automotive, aerospace, and industrial applications requiring advanced EMC compliance.
Use Cases
- Automotive and EV EMC compliance
- Shielded high-voltage line transient testing
- Component-level immunity verification
- Battery and inverter protection testing
- Grid harmonics simulation in electric propulsion
Why Choose the BOLAB ISO 7637-4 Test System?
- Complete ISO 7637-4 compliance
- High-accuracy Pulse A & B simulation
- Clean sinusoidal outputs with low distortion
- Built-in protection and diagnostics
- Modular, scalable, and customizable hardware
- World-class support and software integration
Whether you’re a Tier 1 automotive supplier or an advanced testing lab, the BOLAB ISO 7637-4 Test System is the smart, future-ready choice for high-voltage transient testing.
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