Power supply module with electromagnetic-interference (EMI) shielding, cooling, or both shielding and cooling, along two or more sides
First Claim
1. A power-supply module, comprising:
- a package having a first side and a second side;
an electromagnetic-interference shield includinga platform disposed adjacent to the first side of the package, anda first lead frame disposed adjacent to the second side of the package;
a first power-supply component electrically coupled to one of the platform and the first lead frame; and
a second power-supply component electrically coupled to the other of the platform and the first lead frame.
2 Assignments
0 Petitions
Accused Products
Abstract
An embodiment of a power-supply module includes a package having sides, a first power-supply component disposed in the package, and an electromagnetic-interference (EMI) shield disposed adjacent to two sides of the package. For example, such a module may include component-mounting platforms (e.g., a lead frame or printed circuit board) on the top and bottom sides of the module, and these platforms may provide a level of EMI shielding specified for a particular application. Consequently, such a module may provide better EMI shielding than modules with shielding along only one side (e.g., the bottom) of the module. Moreover, if the module components are mounted to, or otherwise thermally coupled to, the shielding platforms, then the module may provide multi-side cooling of the components.
61 Citations
45 Claims
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1. A power-supply module, comprising:
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a package having a first side and a second side; an electromagnetic-interference shield including a platform disposed adjacent to the first side of the package, and a first lead frame disposed adjacent to the second side of the package; a first power-supply component electrically coupled to one of the platform and the first lead frame; and a second power-supply component electrically coupled to the other of the platform and the first lead frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 39)
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13. A power-supply module, comprising:
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a package having a first side and a second side; a first power-supply component disposed within the package and configured to generate a regulated supply signal; and an electromagnetic-interference shield including; a platform disposed adjacent to the first side of the package; and a first lead frame disposed adjacent to the second side of the package; and wherein the platform includes a second lead frame disposed adjacent to the first side of the package. - View Dependent Claims (14, 16, 17, 40)
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15. The power-supply module of 13, wherein the second lead frame has a lead that is disposed inside of the package and that contacts the first lead frame.
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24. A power-supply module, comprising:
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a package having a first side and a second side; an electromagnetic-interference shield including a platform disposed adjacent to the first side of the package, and a first lead frame disposed adjacent to the second side of the package; a first power-supply component electrically coupled to one of the platform and the first lead frame; a second power-supply component electrically coupled to the other of the platform and the first lead frame; wherein the first lead frame is disposed adjacent to a bottom side of the package and has first and second leads with respective first and second lead portions that are exposed adjacent to first and bottom sides of the package; and wherein the platform includes a second lead frame disposed adjacent to a top side of the package and having third and fourth leads that extend along the first side of the package to the bottom side of the package and having respective third and fourth lead portions that are exposed adjacent to the first and bottom sides of the package and that extend between the first and second lead portions.
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29. A system, comprising:
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a power-supply module, including a package having first and second sides, an electromagnetic-shield platform disposed adjacent to one of the first and second sides of the package, an electromagnetic-shield lead frame disposed adjacent to the other of the first and second sides of the package, a first electronic component electrically coupled to one of the platform and the lead frame, a second electronic component electrically coupled to the other of the platform and the lead frame, and a supply output node; and an integrated circuit coupled to the supply output node. - View Dependent Claims (30, 31, 41)
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32. A method, comprising:
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electrically coupling a first power-supply component to a side of an electromagnetic-interference-shielding platform; disposing a first lead frame to form an electromagnetic-interference shield adjacent to the side of the platform; electrically coupling a second power-supply component to a side of the lead frame; packaging the first and second components, platform, and shield; and exposing a portion of the lead frame through the package, wherein the exposed portion is configured to be coupled to a heat sink. - View Dependent Claims (33, 34, 35, 36, 37, 38, 42, 43)
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44. A circuit module, comprising:
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a package having a first side and a second side; an electromagnetic-interference shield including a platform disposed adjacent to the first side of the package, and a first lead frame disposed adjacent to the second side of the package; a first power-supply component electrically coupled to one of the platform and the first lead frame such that the platform and the first lead frame completely overlap the first power-supply component; and a second power-supply component electrically coupled to the other of the platform and the first lead frame. - View Dependent Claims (45)
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Specification