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US 5,706,186 AGranted
Hybrid pulse width modulation method and apparatus
AssigneeAllen-Bradley Company, Inc.
InventorVladimir Blasko
Life of this patent
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AssigneeAllen-Bradley Company, Inc.
InventorVladimir Blasko
Estimating the term…
A method and/or apparatus to be used with a triangle comparison PWM controller for receiving three original reference signals and providing three modified reference signals that extend the linear relationship between the original reference sign and output voltages and reduce switching losses. A variable factor can be altered to change the form of the modified reference signals to provide various modified reference signals each of which has certain advantages. Advantageously, among other producible reference signals, one producible modified reference signal is shaped such that a resulting output voltage is identical to an output voltage that would be generated using space vector PWM controller.
A method of voltage conversion using a controller and a three phase inverter, the controller receiving three reference signals, providing a carrier signal, and generating three firing signals for controlling the inverter, the method comprising the steps of:
An apparatus of voltage conversion using a controller and a three phase inverter, the controller receiving three reference signals, providing a carrier signal, and generating three firing signals for controlling the inverter, the apparatus comprising:
Dependencies are inferred from the claim text.