Abstract: An automatic control and battery power supply for a bathroom odor removal unit. The power supply comprising: a housing, the housing comprising: a top face in generally orthogonal communication with a toilet tank face; a toilet tank face in generally orthogonal communication with a bottom face; a sensor face in communication with the top face, and the toilet tank face, and where the angle between the sensor face and the toilet tank face is obtuse; a hanger connectable to the housing, and configured to hang from the upper edge of a toilet tank with the housing outside of and generally to one side of the toilet tank; a sensor located on the sensor face.

Abstract: An automatic control and battery power supply for a bathroom odor removal unit, the automatic control and battery power supply comprising: a housing, the housing comprising: a top face in generally orthogonal communication with a toilet tank face; a toilet tank face in generally orthogonal communication with a bottom face; an away face in generally orthogonal communication with the bottom face and top face; a back face in generally orthogonal communication with the toilet tank face, top face and away face; a front face in generally orthogonal communication with the toilet tank face, top face, and away face; a bottom face in generally orthogonal communication with the back face; front face, toilet tank face, and away face; a sensor face in communication with the front face, top face, bottom face, and toilet tank face, and where the angle between the sensor face and the toilet tank face is obtuse; a hanger connectable to the housing, and configured to hang from the upper edge of a toilet tank with the housing o

Abstract: A power supply circuit receives an input voltage. The circuit includes a selectively actuated boost converter that is coupled to receive the input voltage. The selectively actuated boost converter operates to selectively boost the input voltage if the input voltage is less than a certain threshold. Otherwise, no voltage boost is needed. A forward converter circuit converts the input/boost voltage to a plurality of regulated output voltages.