De' Longhi Appliances S.r.l. Con Unico Socio

De'longhi Appliances S.r.l.

Alberto Acciari

Paolo Evangelisti

Davide Bonotto

Nicola Piovan

Embodiments described here concern a method to control a direct current motor powered by an alternating supply voltage, which provides to detect the instant of the zero-crossing of the supply voltage and to selectively activate a switch device to power the motor by the positive half-waves of the supply voltage in order to make it rotate in one sense, and by the negative half-waves in order to make it rotate in the opposite sense. The disclosure also concerns a control circuit for the motor.

Control method and circuit for a direct current motor for an infusion unit of a machine for preparing coffee beverages

The loose product dispenser has a container and a sensor with optical barrier for detecting the presence of loose product in the container, the sensor having a transmitter of a light beam, configured to generate the optical barrier between an entry point and an exit point of the light beam from the container, and a receiver of the light beam, the sensor further has an electronic board on which both the receiver and the transmitter are installed, and a light guide configured and arranged to transmit to the reciever the light beam collected from the exit point.

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Treviso, Italy

Alberto Acciari