Bidirectional Four-Quadrant Voltage Variation Simulator

The LIS-APS series Bidirectional Four-Quadrant Voltage Variation Simulator (also referred to as Four-Quadrant Voltage Drop Simulator and Four Quadrant Battery Simulator) is a high-precision power supply simulation instrument that facilitates bidirectional energy flow. It enables seamless switching and output of positive and negative voltages and currents, accurately replicating dynamic voltage variations, transient pulses, and polarity reversal scenarios. The device also incorporates custom waveform editing capabilities, adjustable impedance settings, and wide-bandwidth ripple superposition. Through dual closed-loop voltage and current control, and employing a fully controlled H-bridge topology that partitions the system into four operational quadrants, it achieves seamless quadrant transitions, precisely managing voltage changes to satisfy diverse complex power supply simulation testing requirements.

The LIS-APS series Four Quadrant Battery Simulator is utilized in automotive electronics applications, simulating onboard battery voltage fluctuations, start-stop conditions, and other operational states, meeting standards such as ISO 16750-2, and verifying the immunity and reliability of components including ECUs and BMS. It is also extensively applicable in rail transportation, aerospace, industrial control, and medical electronics sectors, executing power supply adaptability tests and simulating energy feedback conditions for motors and energy storage devices, delivering precise solutions for performance verification of electronic devices under complex voltage environments.

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