Chroma’s Automated Test System (ATS) is designed for full function testing of ac level 1 and level 2 EVSE (Electric Vehicle Supply Equipment) defined by SAE J1772. The system integrates Chroma’s programmable ac sources to simulate the grid voltage variation. It controls the ac electronic load simulating the current loading state of an onboard charger. A switchable resistor board and oscilloscope are used to test compatibility of the control pilot signal between the EVSE and EV. Test items include voltage interrupt, pulse-width modulation (PWM) duty cycle, contact open, over current protection, etc. This ATS features open-architecture platform software, allowing users to expand test functions in the future.
Megawatt Charging System Ushers in the MW Charging Era: Chroma Offers 1.8MW Test Solution for Electric Trucks
As heavy-duty transportation moves toward electrification, megawatt-level charging is becoming essential for electric trucks and autonomous logistics. Learn how Chroma’s high-power test solutions support reliable MCS testing with scalable power, high-current capabilities, energy regeneration, and comprehensive system validation.
October 7, 2026
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