Electronic device for controlling a discharge pump driven by...

Details Electronic device for controlling a discharge pump driven by... Electronic device for controlling a discharge pump driven by...

2006-06-27

2006-06-27

Masih, Karen (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Synchronization systems

C318S700000, C318S711000

Reexamination Certificate

active

07068008

ABSTRACT:
The present invention relates to an electronic device (10) for controlling a discharge pump, driven by a synchronous electric motor with a permanent-magnet rotor (3) and of the type comprising at least a controller (1) receiving at its input a synchronizing signal (5) of the motor supply voltage (V) and at least a second signal (7) being proportional to the current absorbed by the motor, to drive at its output a switch (6) being series-connected to one of the motor windings. Advantageously, the switch (6) is a bidirectional switch (11) comprising a diode bridge and it can be manufactured in an integrated way. In a preferred embodiment the bidirectional switch (11) is of the SCR type.

REFERENCES:
patent: 3908158 (1975-09-01), Studtmann
patent: 5434491 (1995-07-01), Marioni
patent: 6269012 (2001-07-01), Kusakabe et al.
patent: 2001/0046143 (2001-11-01), Bruckmann et al.
patent: 2003/0081366 (2003-05-01), Bruckmann et al.
patent: 2004/0135557 (2004-07-01), Ryba et al.
patent: 09215372 (1997-08-01), None

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