Case Study
CVS High Voltage & High Current Automated Test System
This case is for CVS current/voltage sensing products. The test scope includes ADC calibration, DC 850V, +/-700A, DI/DO, I2C, EEPROM, PWM, ADBMS2950, Daisy Chain, isoSPI, LabVIEW and RS485 custom control hardware. 850VDC and +/-700A are project requirements/examples, not general limits for all systems.
Case system visualCVS high-voltage and high-current test architecture diagram
Test SoftwareInstrumentationFixtureDUTTraceability
Software, instrumentation, fixture, DUT and production data integration.Project Overview
Automated test case for current/voltage sensing modules covering high voltage, high current, ADC calibration, isoSPI and Daisy Chain communication.
Testing Requirements
- Cover 850VDC and +/-700A related test scenarios under project requirements.
- Perform ADC calibration, DI/DO, I2C, EEPROM and PWM tests.
- Support ADBMS2950, Daisy Chain and isoSPI communication related validation.
System Architecture
LabVIEW Test SoftwareHV / HC Measurement ResourcesRS485 Custom Control HardwareFixture / Safety InterfaceCVS DUTCalibration Data / Report
Key Test Items
ADC Calibration850VDC Project ExampleBidirectional +/-700A Project ExampleDI / DOI2CEEPROMPWMADBMS2950Daisy ChainisoSPI
Engineering Challenges
- High-voltage, high-current and communication tests must work within one system architecture.
- Calibration logic must close the loop from measurement and calculation to data write and verification.
- The test system must manage power paths, communication links and production data.
Implementation
- LabVIEW is used for test flow, instrument control and calibration logic.
- RS485 custom control hardware manages test resources and interface actions.
- High-voltage, high-current, communication and data-write verification flows are configured around DUT requirements.
Engineering Outcome
- An engineering system was built for CVS high-voltage, high-current and calibration testing.
- The project example supports 850VDC and bidirectional +/-700A test requirements.
- Calibration data and test results can be used for production records.
Related Solutions
Related Engineering Capabilities
Hardware EngineeringCommunication & ProtocolInstrumentation & MeasurementCalibrationFixture Engineering
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