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Microcontroller based peak current mode control of a Buck converter is investigated. The new solution uses a discrete time controller with digital slope compensation. This is implemented using only a single-chip microcontroller to achieve desirable cycle-by-cycle peak current limiting. The digital controller is implemented as a two pole, two zero linear difference equation designed using a continuous time model of the Buck converter and a discrete time transform. Subharmonic oscillations aredoi:10.1109/tpel.2011.2182210 fatcat:vhn6mfhcdba4xkpbaho5cmsrja