Electricity: motor control systems inventions 01/08

20080025709 - Systems and methods for driving a load: One embodiment of the invention relates to a control system. A control system includes a controller configured to generate a drive signal as a function of a comparison between a first control signal and a second control signal, wherein the first control signal differs from the second control signal. A... Agent: Eschweiler & Associates, LLC National City Bank Building

20080019677 - Motor drive circuit and electronics: A drive circuit drives a motor in a mode selected from first and second modes. A drive unit operates in response to a control signal received from a signal generation unit to control how the motor should rotate. The control signal is applied to drive the motor in the first... Agent: Fish & Richardson P.C.

20080019678 - Coil load driving circuit and optical disc device: A coil load driving circuit in which generation of radiation noise when a motor is stationary is minimized, includes output buffers that output a PWM pulse to both terminals of a motor; a transfer voltage generating circuit that outputs transfer voltages VTR1, VTR2 proportional to the difference between an input... Agent: Rohm Co., Ltd. C/o Keating & Bennett, LLP

20080013929 - Motor driving using discrete time oscillator: A pulse width modulator includes a discrete time oscillator, a data storage device, a data processing block, a counter, and a comparator. The discrete time oscillator generates a first address of bits used by the data processing block for reading first data from the data storage device. The data processing... Agent: Law Office Of Monica H Choi

20080008459 - Motor control system for the pwm control of an electric motor: The subject of the present invention is a motor control system having a monitoring circuit for monitoring PWM control for a DC electric motor, the PWM control comprising a power end stage having at least one field effect transistor, which controls the current at the DC electric motor. The motor... Agent: Macmillan, Sobanski & Todd, LLC