Valeo Control electronics Air conditioning  for Passenger car

Control electronics

The ventilation power is adjusted by a device that controls the blower speed. Two types of adjusting devices are used:

  • Passive resistive devices that are adjusted in steps and contain two or three resistors corresponding to three or four speeds. The resistors are made of wire coils or mounted on a ceramic support.
  • Power transistors for continuous adjustment. The type of control device is determined by the system architecture.
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