METHOD AND SYSTEM FOR A LOW PROFILE, LOW INDUCTANCE POWER SWITCHING MODULE
First Claim
1. A power module device comprising:
- a base;
a component board comprising a plurality of gated switches formed of a semiconductor material; and
a laminated bus structure comprising;
a first elongate electrical bus member configured to connect to a voltage source having a first polarity, said first elongate electrical bus member having a first length, a first width, and a first thickness, the first length being substantially greater than the first width and the first width being substantially greater than the first thickness;
a second elongate electrical bus member configured to connect to a voltage source having a second polarity, said second elongate electrical bus member having a second length, a second width, and a second thickness, the second length being substantially greater than the second width and the second width being substantially greater than the second thickness, said second elongate electrical bus member positioned in a nested face-to-face configuration with respect to said first elongate electrical bus member; and
a layer of electrical insulation positioned between said first elongate electrical bus member and said second elongate electrical bus member.
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Accused Products
Abstract
A method and system for a power module device is provided. The device includes a base, a circuit board including a plurality of gated switches formed of a semiconductor material, and an electrical bus member configured to connect to a voltage source having a first polarity. The bus member includes a length that is substantially greater than a width of the bus member and the width is substantially greater than a thickness of the bus member. The power module device also includes a second bus member configured to connect to a voltage source having a second polarity. The second bus member is positioned in a nested face-to-face configuration with respect to the first bus member. The power module device further includes a layer of electrical insulation positioned between the first bus member and the second bus member.
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Citations
20 Claims
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1. A power module device comprising:
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a base; a component board comprising a plurality of gated switches formed of a semiconductor material; and a laminated bus structure comprising; a first elongate electrical bus member configured to connect to a voltage source having a first polarity, said first elongate electrical bus member having a first length, a first width, and a first thickness, the first length being substantially greater than the first width and the first width being substantially greater than the first thickness; a second elongate electrical bus member configured to connect to a voltage source having a second polarity, said second elongate electrical bus member having a second length, a second width, and a second thickness, the second length being substantially greater than the second width and the second width being substantially greater than the second thickness, said second elongate electrical bus member positioned in a nested face-to-face configuration with respect to said first elongate electrical bus member; and a layer of electrical insulation positioned between said first elongate electrical bus member and said second elongate electrical bus member. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming a power module device, said method comprising:
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providing a base including a cavity formed of a planar bottom and sidewalls extending orthogonally away from the planar bottom, the base including a contact ledge extending orthogonally away from at least one sidewall; positioning a component board adjacent the planar bottom, the component board including a plurality of semiconductor devices formed of a wide band-gap material positioned in a plurality of groups, each group including a portion of the plurality of semiconductor devices, each portion forming a semiconductor switch; positioning a first electrical bus of a first polarity adjacent the component board, the first electrical bus extending outside the cavity onto the contact ledge; positioning a second electrical bus of a second polarity adjacent and at least partially overlapping the electrical bus of the first polarity, the second electrical bus extending outside the cavity onto the contact ledge and maintaining the overlap of the first electrical bus on the contact ledge; and extending a layer of insulation between the first electrical bus and the second electrical bus along an entire length of overlap of the first electrical bus and the second electrical bus, the layer of insulation extending outside the cavity at least partially covering a surface of a terminal of the first electrical bus and the second electrical bus. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An inverter system comprising:
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a direct current (DC) power source; a power switching module electrically coupled to said DC power source, said power switching module configured to receive DC power from said DC power source and generate alternating current (AC) output, said power switching module comprising; a base; a circuit board comprising a plurality of gated switches formed of a wide band gap semiconductor material; a first elongate electrical bus member configured to connect to a voltage source having a first polarity, said first elongate electrical bus member having a first length, a first width, and a first thickness, the first length being substantially greater than the first width and the first width being substantially greater than the first thickness; a second elongate electrical bus member configured to connect to a voltage source having a second polarity, said second elongate electrical bus member having a second length, a second width, and a second thickness, the second length being substantially greater than the second width and the second width being substantially greater than the second thickness, said second elongate electrical bus member positioned in a nested face-to-face configuration with respect to said first elongate electrical bus member; and a layer of electrical insulation positioned between said first elongate electrical bus member and said second elongate electrical bus member. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification