Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2008-07-29
2008-07-29
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
C318S448000, C318S456000, C327S381000
Reexamination Certificate
active
07405528
ABSTRACT:
A motor drive system control provides global closed loop feedback to cooperatively operate system components to adaptively reduce noise and provide noise cancellation feedback. An active EMI filter reduces differential and common mode noise on an input and provides a noise level indication to a system controller. Power switches in both a power converter and power inverter are cooperatively controlled with dynamic dv/dt control to reduce switching noise according to a profile specified by the controller. The dv/dt control is provided as an analog signal to a high voltage IC and codified as a pulse width for a level shifting circuit supplying control signals to the high voltage gate drive. A noise extraction circuit and technique obtain fast noise sampling to permit noise cancellation and adaptive noise reduction.
REFERENCES:
patent: 4310866 (1982-01-01), Wirth
patent: 5191269 (1993-03-01), Carbolante
patent: 5235504 (1993-08-01), Sood
patent: 5363020 (1994-11-01), Chen et al.
patent: 5583423 (1996-12-01), Bangerter
patent: 6118239 (2000-09-01), Kadah
patent: 6127746 (2000-10-01), Clemente
patent: 6271709 (2001-08-01), Kimura et al.
patent: 6459324 (2002-10-01), Neacsu et al.
patent: 6507167 (2003-01-01), Han et al.
patent: 6567283 (2003-05-01), Welches
patent: 6839249 (2005-01-01), Kalman et al.
patent: 3-261376 (1991-11-01), None
patent: 8-98536 (1996-04-01), None
patent: 9-65644 (1997-03-01), None
patent: 9-140144 (1997-05-01), None
patent: 9-205765 (1997-08-01), None
patent: 2000-102290 (2000-04-01), None
patent: 2001-45742 (2001-02-01), None
patent: 2001-57781 (2001-02-01), None
patent: 2002-95263 (2002-03-01), None
patent: 2002-165475 (2002-06-01), None
patent: 2002-199700 (2002-07-01), None
Vishay document No. 70579, “Si9910 Adaptive Power mosfet Driver Improves Performance in High-Voltage Half-Bridge Applications”, Feb. 15, 1994. Also see www.vishay.com.
Ho Eddy Ying Yin
Honda Jun
Li Yong
Takahashi Toshio
Tam David
International Rectifier Corporation
Ostrolenk Faber Gerb & Soffen, LLP
Ro Bentsu
LandOfFree
Global closed loop control system with DV/DT control and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Global closed loop control system with DV/DT control and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Global closed loop control system with DV/DT control and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2745657