VERTICALLY PACKAGED SWITCHED-MODE POWER CONVERTER
First Claim
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1. A switched-mode power converter, comprising:
- an input module having an input interconnect for receiving a DC input voltage and a switch circuit for converting the DC input voltage to an AC voltage, said input interconnect and switch circuit being mounted on the module'"'"'s bottom surface;
a matrix integrated magnetics (MIM) core on top of the input module, said MIM core having a plurality of legs;
a plurality of windings around the legs, at least some of said windings being energized by said AC voltage causing currents to flow in the windings; and
an output module on top of the MIM core, said output module having a rectifier circuit that rectifies said currents to charge an output capacitor to supply a DC output voltage at an output interconnect on the module'"'"'s top surface, wherein power flows vertically from the input interconnect on the bottom of said input module to the output interconnect on the top of said output module.
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Abstract
A vertically packaged cellular power converter solves the problems associated with conventional designs and paves the way for a cellular circuit architecture with ultra-low interconnect resistance and inductance. The vertical packaging results in a power flow in the vertical direction (from the bottom to the top) with very short internal interconnects, thereby minimizing the associated conduction losses and permitting high conversion efficiency at high currents. The cellular architecture is ideally suited for generating multiple supply voltages.
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Citations
21 Claims
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1. A switched-mode power converter, comprising:
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an input module having an input interconnect for receiving a DC input voltage and a switch circuit for converting the DC input voltage to an AC voltage, said input interconnect and switch circuit being mounted on the module'"'"'s bottom surface;
a matrix integrated magnetics (MIM) core on top of the input module, said MIM core having a plurality of legs;
a plurality of windings around the legs, at least some of said windings being energized by said AC voltage causing currents to flow in the windings; and
an output module on top of the MIM core, said output module having a rectifier circuit that rectifies said currents to charge an output capacitor to supply a DC output voltage at an output interconnect on the module'"'"'s top surface, wherein power flows vertically from the input interconnect on the bottom of said input module to the output interconnect on the top of said output module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A power converter, comprising:
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an input module having a plurality of first planar conductors on a top surface and an input interconnect on a bottom surface for receiving a DC input voltage and a switch circuit for converting the DC input voltage to an AC voltage;
a matrix integrated magnetics (MIM) core on the top surface of the input module, said MIM core having a plurality of windows formed therein that define a plurality of legs over the respective first conductors;
an output module on the MIM core, said output module having a plurality of second planar conductors formed on a bottom surface over the respective legs and a rectifier circuit, output capacitor and an output interconnect on a top surface; and
a plurality of first and second vertical conductors that connect the first and second planar conductors through the windows on either side of the legs, one of said first and second planar conductors having points A and B that lie on opposite sides of an insulating region to form a windings there between, said rectifier circuit rectifying currents in said windings caused by the application of said AC voltage to charge the output capacitor and supply a DC output voltage at the output interconnect. - View Dependent Claims (18, 19, 20, 21)
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Specification