Air-Conditioner Fan Control

This PWM controller can be used to activate actuators such as DC motors, pumps, etc. with up to 400 W. The output voltage for the fan motor depends on the reference value. The battery voltage – as long as the reference value is lower – has no impact on the output voltage.

With 18kHz, the output frequency is outside the audible range. The current is virtually a direct current through the inductance of the motor and therefore does not generate any torque fluctuations.

The patented slope control results in a very low degree of EMC emission.

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