organize the charge and discharge cycles of current flowing through inductor 108 by sensing the voltages at output terminals 111 113 controller 115 serves to activate the appropriate ones of switches 101 102 103 104 105 to direct the currents at terminals 116 117 of inductor 108 either to the respective output terminals 111 113 or to ground terminal 107 as required to maintain proper output voltage regulation the voltage regulation set points maintained by controller 115 at output terminals 111 113 are established by means of conventional feedback loop elements internal to controller 115 that serve to sense the output voltages at output terminals 111 113 and compare each of them to a reference voltage to produce a feedback error signal controller 115 then processes the feedback error signal to produce a control signal which when applied to conventional circuitry acts to minimize the error signal for example those skilled in the art will recognize that sensing the output voltages may be accomplished using passive component voltage dividers employing resistors and or capacitors such that in conjunction with the reference voltage an error amplifier compensator and pulse width modulator an output voltage regulation set point can be established by varying the sensing component ratio and.