Slew-controlled switched capacitors for AC-DC applications
AssigneepSemi Corporation
InventorsDavid Giuliano, David Kunst
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Abstract
In a power converter, a regulator that receives a first voltage couples to a switched-capacitor converter that provides a second voltage. Slew-control circuitry controls slew rate within the switched-capacitor converter during operation thereof. A controller controls the operation of both the regulator and the switched-capacitor converter.
Claims20
An apparatus comprising slew-control circuitry, a regulator, a switched-capacitor converter, and a controller, wherein said regulator is to receives a first voltage and said switched-capacitor converter is to provide a second voltage, wherein said regulator and said switched-capacitor converter are coupled to each other, wherein said controller is to control said regulator and said switched-capacitor converter, wherein said slew-control circuitry is to control a slew rate of said second voltage, wherein said switched-capacitor converter comprises a plurality of capacitors, first switches, and second switches, wherein closing said first switches and opening said second switches arranges said capacitors into a first state, wherein closing said second switches and opening said first switches arranges said capacitors into a second state, and wherein said controller causes said switched-capacitor converter to transition between said first state and said second state, thereby transferring charge between capacitors of said switched-capacitor converter.
Dependencies are inferred from the claim text.