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US 11,121,623 B2Granted
Dies with switches for operating a switched-capacitor power converter
AssigneepSemi Corporation
InventorDavid Giuliano
Life of this patent
Estimating the term…
Abstract
An apparatus for power conversion includes a transformation stage for transforming a first voltage into a second voltage. The transformation stage includes a switching network, a filter, and a controller. The filter is configured to connect the transformation stage to a regulator. The controller controls the switching network.
Claims21
An apparatus for power conversion, the apparatus comprising:
- a transformation stage for transforming a first voltage into a second voltage;
- wherein the transformation stage comprises a switching network having a plurality of switches, each of which transitions between first and second states, the plurality of switches being independently controlled so as to cause the switching network to assume at least first and second switching arrangements;
- a filter and a controller;
- and
- a first die and a second die, wherein the plurality of switches comprise phase switches and stack switches, wherein the phase switches are on the first die and the stack switches are on the second die;
- wherein the filter is configured to connect the transformation stage to a load,
- wherein as a result of the filter, during an interval in which the switching network is in one of the first or the second switching arrangements, current to the load is a rectified current, and
- wherein the controller controls the switching network by causing the switching network to assume the first and second switching arrangements.
5 more elements
A method for operating a power converter, the method comprising:
- providing a first voltage to a transformation stage;
- causing the transformation stage to charge some capacitors and to discharge other capacitors to transform the first voltage into a second voltage;
- and
- filtering current that passes from the transformation stage to a load, thereby causing the current to be a rectified sinusoid,
- the power converter having a first die and a second die,
- wherein the power converter comprises phase switches and stack switches, wherein the phase switches are on the first die and the stack switches are on the second die.
3 more elements
A power converter for transforming a first voltage into a second voltage, the power converter comprising:
- a transformation stage comprising switches, each of which transitions between first and second states, the switches being independently controlled so as to assume first and second switching arrangements;
- a controller that causes the switches to assume the first and second switching arrangements, and a filter configured to connect the transformation stage to a load such that a current to the load is a rectified current that is periodic;
- and
- a first die and a second die, wherein the switches comprise phase switches and stack switches, wherein the phase switches are on the first die and the stack switches are on the second die.
1 more element
Dependencies are inferred from the claim text.