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US 7,064,569 B2Granted
Detecting a current with a sensor having a wheatsone bridge
AssigneeIntel Corporation
InventorsHanan Leshnovolsky, Low Kok Wah
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Abstract
According to one aspect of the invention, a system for indirectly sensing and switching off current in a burn-in board is provided. The system includes a device for indirectly sensing the current, circuitry for setting a maximum current limit and a delay time, circuitry for shutting off the current when it reaches the maximum current limit, and devices for remotely switching the current off and resuming current flow.
Claims11
A method, comprising:
- remotely detecting current flowing in a conductor, wherein the sensor comprises first and second Wheatstone bridges, the first Wheatstone bridge attached to a power supply in a first polarity, the second Wheatstone bridge attached to the power supply in a second polarity opposed to the first polarity, the first Wheatstone bridge to detect the flux density of the field created by the current flowing in the conductor and an ambient flux density, the second Wheatstone bridge to detect the ambient flux density;
- and
- reducing the flow of current through the conductor when the current exceeds a predetermined limit.
A method, comprising:
- placing an electronic device in a socket on a burn-in board, the electronic device having at least one contact;
- providing current to the at least one contact on the device;
- remotely detecting the current flowing to the at least one contact on the device;
- and
- reducing the flow of current to the at least one contact when the current exceeds a predetermined limit.
2 more elements
Dependencies are inferred from the claim text.