Patent ID: 8587152
Filing Date: 2013-11-19
Classification: H02M

Abstract:
1. A sequential shunt regulator comprising: at least one power switch operable to switch a first subset of current from at least one power source in discrete amounts to provide a first current to an electrical bus; at least one current controllable switch operable to provide a second subset of the current from the at least one power source in analog amounts to provide a second current to the electrical bus; and a controller operable to: control the at least one power switch and the at least one current controllable switch to control the discrete amounts and the analog amounts to substantially match the first current plus the second current to a load on the electrical bus; monitor a status signal of the at least one power switch, the status signal comprising an on or off signal indicating whether the at least one power switch is or is not providing current to the electrical bus; generate an analog PWM error signal based on the status signal; and control the analog amounts based on the analog PWM error signal.