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AssigneepSemi Corporation
InventorDavid Giuliano
Estimating the term…
In a power converter, a switching network having switches that operate at a common frequency and duty cycle interconnects circuit elements. These circuit elements include capacitors that are in a capacitor network and a magnetic filter. When connected to the capacitors by a switch from the switching network, the magnetic filter imposes a constraint upon inter-capacitor charge transfer between the capacitors to maintain the filter's second terminal at a voltage. The switching network transitions between states. These states include a first state, a second state, and a third state. In both the first state and the third state, the first magnetic-filter terminal couples to the capacitor network. In the second state, which occurs between the first and third state, the switches ground the first magnetic-filter terminal.
An apparatus comprising a power converter that transforms a first voltage at a first power-converter terminal into a second voltage at a second power-converter terminal, said power converter comprising a switching network that interconnects capacitors in a capacitor network and a magnetic filter, said magnetic filter comprising a first magnetic-filter terminal and a second magnetic-filter terminal, wherein, when connected to said capacitors by a switch from said switching network, said magnetic filter imposes a constraint upon inter-capacitor charge transfer between said capacitors, wherein said second magnetic-filter terminal is maintained at said second voltage, wherein said switches operate at a common frequency and at a common duty cycle, wherein said switching network is configured to transition between states, said states comprising a first state, a second state, and a third state, wherein, in both said first state and said third state, said first magnetic-filter terminal couples to said capacitor network, wherein in said second state, said first magnetic-filter terminal is grounded, and wherein said second state occurs between said first and third states.
The apparatus of claim 15, wherein said capacitor network and said switching network cooperate to define a two-phase charge pump.
An apparatus comprising switches that interconnect capacitors of a charge pump that connects to a first terminal of a power converter that comprises said charge pump and a regulator, wherein a first power path connects said power converter to a first terminal of a magnetic filter and wherein a second power path connects said power converter to a second terminal of said magnetic filter and to a second terminal of said power converter.
Dependencies are inferred from the claim text.