-
公开(公告)号：US09973119B2
公开(公告)日：2018-05-15
申请号：US15019032
申请日：2016-02-09
Applicant: Melexis Technologies NV
Inventor： Dirk Leman , Huowen Zhang , Xing Zuo
Abstract: A single phase motor drive circuit for driving a single phase motor, comprising: a timer unit for receiving a sensor signal indicative of an angular position of a rotor, and for providing a timing signal in phase with the sensor signal; a waveform generator for generating a waveform for energizing the motor, the waveform generator being adapted for receiving the timing signal and a configurable setting, and for generating the waveform based thereon; a configuration unit for receiving an input signal indicative of a desired motor speed, the configuration unit being adapted for generating the configurable setting as a function of the input signal, and for providing the setting to the waveform generator to dynamically configure the waveform generator. A method, an assembly and a cooling system includes the single phase motor driver circuit.
-
公开(公告)号：US10066967B2
公开(公告)日：2018-09-04
申请号：US15468730
申请日：2017-03-24
Applicant: MELEXIS TECHNOLOGIES NV
Inventor： Dirk Leman , Marc Lambrechts , Zuo Xing , Zhang Huowen
IPC: G01D5/20
Abstract: A method for detecting rotor position for a single coil DC motor or 2-coil DC motor with non-parallel windings, with no need of Hall position sensor. The method comprises applying a first respectively second probe pulse for generating a first response pulse having a first direction or polarity and a second response pulse having a second direction or polarity. The probe pulses are adapted so they do not substantially move the rotor with respect to the stator, but affect the magnetic properties of the stator. By comparing the measured effects caused by the probe pulses, the initial position of the rotor with respect to the stator is determined. A method for start-up, a motor driver circuit, and a motor assembly comprising said motor and driver circuit are also provided.
-
Search Results
2
records
(took 0.012 seconds)
