UNIFIED CONTROL SCHEME FOR NON-INVERTING HIGH-EFFICIENCY BUCK-BOOST POWER CONVERTERS

摘要

Methods and apparatus relating to a unified control scheme for non-inverting high-efficiency buck-boost power converters are described. In an embodiment, compensator logic causes a buck-boost power converter to provide an output voltage with a higher voltage level than an input voltage in a boost operational mode of the buck-boost power converter and to provide the output voltage with a lower voltage level than the input voltage in a buck operational mode of the buck-boost power converter. The compensator logic provides N+1 bits to Pulse Width Modulation (PWM) generator logic to cause the buck-boost power converter to provide the output voltage. One of the N+1 bits indicates whether the buck-boost power converter is to provide the buck operation or the boost operation. Other embodiments are also disclosed and claimed.

主权项

1. An apparatus comprising:
compensator logic, at least a portion of which is in hardware, to cause a buck-boost power converter to provide an output voltage with a higher voltage level than an input voltage in a boost operational mode of the buck-boost power converter and to provide the output voltage with a lower voltage level than the input voltage in a buck operational mode of the buck-boost power converter, wherein the compensator logic is to provide N+1 bits to Pulse Width Modulation (PWM) generator logic to cause the buck-boost power converter to provide the output voltage, wherein one of the N+1 bits is to indicate whether the buck-boost power converter is to provide the buck operation or the boost operation.