IP Library Granted Patent US 8,009,393
Granted Patent B2
US 8,009,393 · App. 12/555,180 · Granted Aug 30, 2011

Thermoelectric device utilized as voltage snubber

Assignee: Hamilton Sundstrand Corporation
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Quick Facts
Patent No.
US 8,009,393
App. No.
12/555,180
Granted
Aug 30, 2011
Kind
B2
Abstract

An electric circuit includes a plurality of electric circuit elements. The circuit is prone to creating voltage spikes on a pair of spaced lines. A jumper line connects the pair of spaced lines. A thermoelectric element is connected on the jumper line such that the voltage spike will pass through a hot node on the thermoelectric element. A cool node of the thermoelectric element is positioned adjacent to components which require cooling.

Claims (21)

1. An electric circuit comprising:

a circuit including plurality of electric circuit elements, and said circuit being prone to creating voltage spikes on a pair of spaced lines;

a jumper line connecting the pair of spaced lines; and

a thermoelectric device connected on said jumper line such that a voltage spike will pass through said thermoelectric device, and a cool node of said thermoelectric device being positioned adjacent to a first component to be cooled.

2. The circuit as set forth in claim 1 , wherein said circuit elements include a plurality of switches, and said circuit is a power module for supplying power to a second component.

3. The circuit as set forth in claim 2 , wherein said switches are MOSFETs.

4. The circuit as set forth in claim 1 , wherein said cool node is connected to the first component by a solid element formed of a material selected to have good conduction characteristics.

5. The circuit as set forth in claim 1 , wherein a cool plate is connected to a hot node of the thermoelectric divice.

6. The circuit as set forth in claim 1 , wherein said spaced lines are power lines for communicating a power source to the first component.

7. The circuit as set forth in claim 6 , wherein said first and second component are the same component.

8. The circuit as set forth in claim 6 , wherein the first component is a motor.

9. A power supply for a component comprising:

a voltage source for supplying voltage to a first component, and through a power switching module;

said power switching module incorporating a plurality of switches, and for providing power from said voltage source to a pair of spaced power lines; and

said circuit being prone to creating voltage spikes on the pair of spaced power lines, a jumper line connecting said pair of spaced power lines, a thermoelectric device connected on said jumper line such that a voltage spike will pass through said thermoelectric device, and transfer heat from a hot node to a cool node of said thermoelectric device being positioned adjacent to a second component to be cooled, and a capacitor on said jumper line.

10. The supply as set forth in claim 9 , wherein said switches are MOSFETs.

11. The supply as set forth in claim 9 , wherein said cool node is connected to the second component by a solid element formed of a material selected to have good conduction characteristics.

12. The supply as set forth in claim 9 , wherein a cool plate is connected to the hot node.

13. The supply as set forth in claim 9 , wherein the first electrical component is a motor.

14. The supply as set forth in claim 9 , wherein said spaced lines are power lines for communicating a power source to the first component.

15. The supply as set forth in claim 14 , wherein said first and second component are the same component.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jul 30, 2010
From: HAMILTON SUNDSTRAND CORPORATION
To: AIR FORCE, UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE, THE
Reel/Frame 024801/0780 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2009
From: KATSUMATA, SHIN
To: HAMILTON SUNDSTRAND CORPORATION
Reel/Frame 023201/0475 →
Continuity (1)
Related Publication 20110058284A1 · Mar 10, 2011