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1. WO2022009246 - CONTROL METHOD AND CIRCUIT FOR A DIRECT CURRENT MOTOR FOR AN INFUSION UNIT OF A MACHINE FOR PREPARING COFFEE BEVERAGES

Publication Number WO/2022/009246
Publication Date 13.01.2022
International Application No. PCT/IT2021/050213
International Filing Date 08.07.2021
IPC
H02P 7/295 2016.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
7Arrangements for regulating or controlling the speed or torque of electric DC motors
06for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
18by master control with auxiliary power
24using discharge tubes or semiconductor devices
28using semiconductor devices
285controlling armature supply only
292using static converters, e.g. AC to DC
295of the kind having one thyristor or the like in series with the power supply and the motor
H02P 29/50 2016.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
29Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
50Reduction of harmonics
Applicants
  • DE' LONGHI APPLIANCES S.R.L. CON UNICO SOCIO [IT]/[IT]
Inventors
  • EVANGELISTI, Paolo
  • ACCIARI, Alberto
  • BONOTTO, Davide
Agents
  • PETRAZ, Davide Luigi
  • PETRAZ, Gilberto Luigi
  • GAROFOLO, Franca
  • POCECCO, Bruna
  • DAL FORNO, GianCarlo
  • LIGI, Stefano
  • FABRO, Lorenzo
  • PILATI, Davide
  • AVIO, Fabio
  • DALLA LONGA, Arianna
  • DI BERNARDO, Liliana
  • FERRI, Laura
  • GALLINI, Alice
Priority Data
10202000001667209.07.2020IT
Publication Language English (en)
Filing Language Italian (IT)
Designated States
Title
(EN) CONTROL METHOD AND CIRCUIT FOR A DIRECT CURRENT MOTOR FOR AN INFUSION UNIT OF A MACHINE FOR PREPARING COFFEE BEVERAGES
(FR) PROCÉDÉ ET CIRCUIT DE COMMANDE D'UN MOTEUR À COURANT CONTINU POUR UNE UNITÉ D'INFUSION D'UNE MACHINE DE PRÉPARATION DE BOISSONS À BASE DE CAFÉ
Abstract
(EN) Embodiments described here concern a method to control a direct current motor (50) powered by an alternating supply voltage (Vin), which provides to detect the instant of the zero-crossing of the supply voltage (Vin) and to selectively activate a switch device (11) to power the motor (50) by means of the positive half-waves (Vinl) of the supply voltage (Vin) in order to make it rotate in one sense, and by means of the negative half-waves (Vin2) in order to make it rotate in the opposite sense. The invention also concerns a control circuit (10) for the motor (50).
(FR) Des modes de réalisation décrits ici concernent un procédé de commande d'un moteur à courant continu (50) alimenté par une tension d'alimentation alternative (Vin), qui permet de détecter l'instant du passage par zéro de la tension d'alimentation (Vin) et d'activer sélectivement un dispositif de commutation (11) destiné à alimenter le moteur (50) au moyen des demi-ondes positives (Vinl) de la tension d'alimentation (Vin) pour le faire tourner dans un sens, et au moyen des demi-ondes négatives (Vin2) pour le faire tourner dans le sens opposé. L'invention concerne également un circuit de commande (10) pour le moteur (50).
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