Rolling stock systems/Propulsion control system/AC Traction control system/Technology

A highly efficient dry panel cooler (optimize the fin shape and plate thickness)

>> Achieve 50% reduction in heat resistance compared to conventional models
(10K/k Wat, wind speed 4m/s)

Cooling agent-free circuit

Reduced inductance of the filter condenser

Reduced inductance of the main circuit wiring (target 100nH or less)

di/dt control using IPM
>> Decrease the rebounding voltage after shutdown
>> Increase in reliability and efficiency as the number of components is reduced

IPM self-protection function
Install the electric current sensor in the module to protect it with a driver
>> It is possible to increase the speed of protection operations and protect it from ground faults.

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	A highly efficient dry panel cooler (optimize the fin shape and plate thickness) >> Achieve 50% reduction in heat resistance compared to conventional models (10K/k Wat, wind speed 4m/s)
	Cooling agent-free circuit
	Reduced inductance of the filter condenser
	Reduced inductance of the main circuit wiring (target 100nH or less)
	di/dt control using IPM >> Decrease the rebounding voltage after shutdown >> Increase in reliability and efficiency as the number of components is reduced
	IPM self-protection function Install the electric current sensor in the module to protect it with a driver >> It is possible to increase the speed of protection operations and protect it from ground faults.