A self-adjustable, self-ligating orthodontic bracket includes a base with a tooth face bonded to a surface of a tooth. In an active mode, first and second control signals are at the \u201cH\u201d and \u201cL\u201d levels, respectively. The SMI handler identifies an address in memory at which a first file is to be stored, and determines how to access a function provided by a kernel of the operating system. The cooling arrangement also includes a second cooling loop configured to accept heat from the photovoltaic unit and reject heat through the heat exchanger. The gate drive applies an equal voltage bias to both the gates.