Exploring EV OBC/DC-DC Converter ATS
EV OBC/DC-DC Converter ATS
Chroma 8000
Built-in standard test items compliant with QC/T 895, GB/T 24347, GB/T 40432, SAE J2894 standard requirements that can be loaded directly without reprogramming
On-Board Chargers (OBC) convert grid power into DC current to charge the on-board energy storage device. In addition to all the functions of the general OBC, the Bidirectional OBC (BOBC) can also output the stored power for applications such as V2L, V2V, and V2G. The DC/DC converter converts the high voltage DC power to low voltage for the auxiliary power output of the EV battery.
Chroma has a complete line of AC and DC power load products. We provide automatic test systems for OBCs and DC/DC converters that verify the performance and safety of your products according to their characteristics and test requirements. The systems are especially suitable for R&D verification, QA and production lines of EV parts manufacturers and EV factories.
- Automated test system for EV OBC and DC-DC converters
- Supports GB/T 40432 and GB/T 24347; convenient implementation of relevant electrical and communication tests
- Customizable fixtures and panels for easy connection between DUT and test equipment and smooth replacement of parts
- Highly integrated and open architecture; test system and scope can be tailored to specific needs
- Comprehensive test report compilation
- MES compatibility for production EOL testing and data uploading
- Supports test programs with simultaneous testing of multiple DUTs
On-Board Charger ATS
On-board charger (OBC) converts the AC power of the charging station (EVSE) into DC power to charge the EV battery. Currently common OBC power specifications include 3.3kW, 6.6kW, 11kW, and 22kW. However, the future will bring increasing numbers of bidirectional on-board chargers (BOBCs) that apply to the EV through V2X modes. Chroma ATE provides test items that comply with GB/T 40432 and other relevant test standards, assisting users with complete verification of various application modes on the unit under test (UUT).
Test Method 1
Test Method 2
Standard Test Items
Charge Mode
- CAN Communication Test
- Input/Output Test
- Phase Angle Deviation Test
- Inrush Current Test
- Output Accuracy Test
- Ripple & Noise Test
- Overshoot Test
- Load Dump Test
- Line Regulation Test
- Load Regulation Test
- Fin Ramp Shut Down Test
- Fin Ramp Start Up Test
- Vin Ramp Shut Down Test
- Vin Ramp Start Up Test
- OVP/UVP/OPP Test
- Phase Failure Protection Test
- Open/Short Circuit Test
- PWM Interruption Test
Discharge Mode
- Voltage Accuracy Test
- Frequency Accuracy Test
- Dynamic Load Response Test
- Voltage Distortion Test
- DC Component Test
- Discharging Efficiency Test
- Static Power Test
- Overload Capacity Test
- OVP/UVP/OCP Test
Multifunctional Test Platform (Chroma 80700)
Chroma 80701
- 4 independent CAN/CAN FD channels
- 2 independent LIN Bus channels
- Can output multiple trigger signals
- Live counters, CRC, and UDS functions
Chroma 80702
- 12 DI/DO channels
- 2 channels of PWM output
- 8 channels each of TTL input/output
- DI/DO trigger interlock function
Chroma 80703
- EV/EVSE switchable modes
- CP PWM signal adjustment and measurement function
- Supports simulation of CP and CC signal interruption and grounding
- Programmable CP and CC loop resistance values
On-board Charger/DC-DC Converter Switchable Fixtures
- Integrated I/O interface for easy and quick switching of DUTs
- Supports single and bidirectional OBC
- Provides ports for AC single/three-phase power,
- DC high/low voltage, and auxiliary power
- Optional DC 600V/1200V HV port
- DMM signal measurement port
- Temperature simulation functionality
DC-DC Converter ATS
Each EV will contain at least one DC-DC converter, the function of which is to convert the power of the battery into an auxiliary power output for system use. Chroma offers ATSs that comply with GB/T 24347 specifications, and can provide customized test solutions according to specific user needs.
Standard Test Items
- CAN Communication Test
- Efficiency-weighted Test
- Rated Power Test
- Output Voltage Accuracy Test
- Output Current Accuracy Test
- Overshoot & Recovery Time Test
- Ripple & Noise Test
- Line Regulation Test
- Load Regulation Test
- Total Regulation Test
- Vin Ramp Shut Down Test
- Vin Ramp Start Up Test
- Output Response Time Test
- OVP/UVP/OCP Test
Model Options
| Model | Description |
| 8000 | EV OBC/DC-DC Converter ATS |
| 61809/61812/61815 | Regenerative Grid Simulator |
| 62000D Series | Bidirectional DC Power Supply |
| B618007 | Regenerative AC Load (option) |
PowerPro
Enterprise Wide Automation Software Platform
PowerPro 5 is designed for automated testing of various power conversion devices and power supplies. A wide selection of hardware options is available for integration, including programmable AC/ DC power supplies, electronic loads, digital multimeters, oscilloscopes, timing/noise analyzers, and short circuit and overvoltage protection testers. Combined with Chroma’s PowerPro 5 open software architecture, provides users with a versatile, powerful, and cost-effective automated testing system capable of meeting the testing needs of any form of power supply.
Watch
Webinar: EV Power Components, A Total Testing Solution from the EVSE to the Battery
This seminar has been put together to demonstrate the improvements made to EV testing performance with newly developed instruments, functional test systems, battery test and simulation systems. Get an overview of the entire scope of work with reliable, precision instrumentation and systems including electrical safety testing for multiple applications.
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