Switched-capacitor network packaged with load
AssigneepSemi Corporation
InventorDavid Giuliano
Life of this patent
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Abstract
An apparatus comprises a charge pump packaged with a load that receives charge provided by the charge pump, the charge pump comprising a plurality of switches that, when connected to a plurality of capacitors, cause the plurality of capacitors to assume a selected configuration, wherein the switches are configured to cause transitions between configurations of the capacitors.
Claims35
An apparatus comprising a charge pump for use in a power converter, said charge pump being packaged with a load that receives configured to receive charge provided by said charge pump, said charge pump comprising a plurality of switches that configured to, when connected to a plurality of capacitors, cause said plurality of capacitors to assume a selected configuration of a plurality of configurations, said switches being configured to cause transitions between said plurality of configurations of said capacitors, said apparatus further comprising a printed-circuit board having opposed first and second faces and a first die protruding from said first face,
- wherein said charge pump comprises a first terminal and a second terminal, and
- wherein said charge pump transforms configured to transform a first voltage at said first terminal into a second voltage at said second terminal,
- wherein the charge pump is configured such that at least some charge that leaves said charge pump passes through an inductor.,
- wherein said power converter comprises a power-converter controller and said charge pump, wherein said power-converter controller comprises a charge-pump controller configured to control said charge pump,
- wherein at least a portion of said power converter protrudes from said second face,
- wherein said printed-circuit board is configured to be mounted in electrical communication with a motherboard, and
- wherein said second face is configured to face said motherboard, and wherein an accommodation space is configured to receive said at least a portion of said power converter.
An apparatus comprising a charge pump, a printed circuit board, a motherboard, and a first die for use in a power converter, said charge pump being packaged with a load that receives configured to receive charge provided by said charge pump, said charge pump comprising a plurality of switches that configured to, when connected to a plurality of capacitors, cause said plurality of capacitors to assume a selected configuration of a plurality of configurations, said switches being configured to cause transitions between said plurality of configurations of said capacitors,
- wherein said charge pump comprises a first terminal and a second terminal, and
- wherein said charge pump transforms is configured to transform a first voltage at said first terminal into a second voltage at said second terminal, said apparatus further comprising a magnetic filter connected to said charge pump thereby causing said charge pump to operate at least partially adiabatically.,
- wherein said power converter comprises a power-converter controller and said charge pump,
- wherein said power-converter controller comprises a charge-pump controller configured to control said charge pump,
- wherein said printed circuit board comprises a first face and a second face opposed to said first face,
- wherein said motherboard comprises walls forming a hole therethrough,
- wherein said first die comprises circuitry configured to consume power provided by said power converter,
- wherein said first die is coupled to said printed circuit board, and
- wherein, when said printed circuit board is mounted to said motherboard with said second face facing said motherboard, said hole is configured to accommodate said power converter.
An apparatus comprising a charge pump for use in a power converter, said charge pump being packaged with a load that receives configured to receive charge provided by said charge pump, said charge pump comprising a plurality of switches that configured to, when connected to a plurality of capacitors, cause said plurality of capacitors to assume a selected configuration of a plurality of configurations, said switches being configured to cause transitions between said plurality of configurations of said capacitors, wherein said charge pump comprises a first terminal and a second terminal, and wherein said charge pump transforms is configured to transform a first voltage at said first terminal into a second voltage at said second terminal, said apparatus further comprising a printed-circuit board having opposed first and second faces and a first die protruding from said first face, wherein at least a portion of said power converter protrudes from said second face, wherein said printed-circuit board is configured to be mounted to be in electrical communication with said a motherboard, wherein said second face faces is configured to face said motherboard, and wherein an accommodation space receives is configured to receive said at least a portion of said power converter.
A power-management system comprising:
- one or more switched-capacitor networks coupled to a load via a conductive path, a particular switched-capacitor network of the one or more switched-capacitor networks having a voltage input, an at least one discrete passive device, a plurality of switches coupled to the at least one discrete passive device, and a voltage output coupled to the load, wherein the one or more switched-capacitor networks are configured such that at least some charge that leaves the one or more switched-capacitor networks passes through an inductor;
- and
- a package coupled to a printed circuit board, the package having a first terminal coupled to a power supply and to the voltage input and a second terminal coupled to ground, the package comprising:
- the plurality of switches,
- a high voltage path to couple the voltage input and the voltage output, and
- a low voltage path to couple the ground and the voltage output,
- wherein the at least one discrete passive device is coupled to the package, and wherein the at least one discrete passive device comprises at least one capacitor directly connected between the high voltage path and the low voltage path.
A method comprising:
- selectively opening and closing each of a plurality of switches of a particular switched-capacitor network of one or more switched-capacitor networks to selectively couple at least one discrete passive device of the particular switched-capacitor network to a voltage input of the particular switched-capacitor network and/or a voltage output of the particular switched-capacitor network utilizing a high voltage path of a package and a low voltage path of the package, wherein the package is coupled to a printed circuit board, wherein the package comprises the plurality of switches, a first terminal coupled to a power supply and to the voltage input, a second terminal coupled to ground, the high voltage path to couple the voltage input and the voltage output, and the low voltage path to couple the ground and the voltage output, wherein the voltage output is coupled to a load, wherein the one or more switched-capacitor networks are coupled to the load via a conductive path, and wherein a magnetic filter is connected to the one or more switched-capacitor networks thereby causing the one or more switched-capacitor networks to operate at least partially adiabatically;
- and
- transforming a first voltage at the voltage input to a second voltage at the voltage output based on the selectively opening and closing of each of plurality of switches, wherein the at least one discrete passive device is coupled to the package, and wherein the at least one discrete passive device comprises at least one capacitor directly connected between the high voltage path and the low voltage path.
Dependencies are inferred from the claim text.