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ON-BOARD CHARGERS

Real-time simulation and test for advancing your OBC performance

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Reliable Power Conversion Starts with Reliable Testing

Power Testing for On-Board Chargers




Onboard Chargers (OBC) are critical components in electric vehicles (EVs), enabling safe and efficient AC-to-DC charging from public or residential charging points. In modern EV architecture, OBCs are increasingly integrated with DC/DC converters to simultaneously support high-voltage battery charging and low-voltage auxiliary power supply.

Key testing challenges include:
  • Compliance with grid and automotive standards (e.g., IEC 61851, GB/T 18487, ISO 26262)
  • Verifying conversion efficiency and thermal performance
  • Validating EMC, safety shutdown, CAN communication, and state transitions
  • Performing long-hour reliability, BMS coordination, and aging tests
bidrectional on-board charger DC DC testbed
bidrectional on-board charger DC DC testbed
bidrectional on-board charger DC DC testbed
bidrectional on-board charger DC DC testbed
bidrectional on-board charger DC DC testbed

ActionPower is by Your Side for:

Test Function Description
Charging Mode Testing Supports Mode 1/2/3; compatible with various grid frequencies and voltages
CP/PP Control Pilot Signal Emulation Automatically outputs EVSE communication control curves
OBC Charging/Discharging Validation Supports CC, CV, and CP control strategies
V2L/V2V Discharge Mode Simulation Verifies bidirectional power supply capability
Insulation & Fault Simulation Supports injection of open-circuit, short-circuit, and grounding faults
Auto Test Sequence & Report Export Supports Python/LabVIEW calls and standardized report export

ActionPower's Advantages

Precision & Dynamics

We emulate grid and battery conditions required in OBC charging and discharging tests, with stable waveforms that ensure compliance to standards like GB/T, ISO 15118, and IEC 61851.

scalable test system for ev evse

Scalable & Modular Design

Supports flexible voltage and power scaling to match various OBC power levels (3.3kW, 6.6kW, 11kW, 22kW), allowing one system to cover both passenger and commercial EV charger testing.

low maintenance and fast upgrade

All-in-One ATE

Easily implement complex test sequences such as CP/PP signal emulation, insulation fault injection, and charging curve reproduction—with automated test reports and remote control

smart software test system for ev evse

Proven by Industrial Leaders

ActionPower’s OBC test solutions are already in service at multiple Tier-1 suppliers and EV OEMs in China, ensuring field-proven reliability, repeatability, and engineering efficiency in charger development.

dynamic real world simulation and test system for ev evse

Click to Review Our Portfolio for OBC Test

Power Supply Primary Function Application Scenario More
Programmable AC Power Supply Simulates grid input with adjustable voltage/frequency, waveform distortion, and unbalanced phases Simulates global grid conditions to verify OBC compatibility and immunity to input disturbances Explore Options
Grid Simulator Advanced AC source that replicates grid faults such as voltage sags/swells, frequency shifts, and power outages Conducts grid fault tolerance and immunity testing per IEC 61000-4-11, GB/T 18487, and other standards Explore Options
Bidirectional DC Power Supply Simulates battery output or absorbs energy with regenerative capabilities Used as a virtual battery to test OBC charging efficiency, CV/CC performance, and aging characteristics Explore Options
Battery Simulator Emulates battery charging behaviour with customizable OCV curves and SoC response Precisely simulates different battery types and conditions to evaluate OBC dynamic response Explore Options
DC Electronic Load Absorbs DC energy in constant current or constant power mode Suitable for OBC reverse current handling or system stability assessment Explore Options
Power HIL (Hardware-in-the-Loop) System Emulates real vehicle-level electrical systems with real-time feedback Used in development-level validation combined with simulation platforms for advanced energy management Explore Options

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Quick Model Access

Smart Discovery

Access our Power Supply Wizard to find the right programmable power supply for your use cases and testing scenarios.

discover programmable power supply by filtering with current, voltage and power ranges
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