Power management through segmented circuit and variable voltage protection

  • US 9,733,663 B2
  • Filed: 03/26/2014
  • Issued: 08/15/2017
  • Est. Priority Date: 03/26/2014
  • Status: Active Grant
First Claim
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1. A surgical instrument control circuit, comprising:

  • a primary processor;

    a safety processor; and

    a segmented circuit comprising a plurality of circuit segments in signal communication with the primary processor, the plurality of circuit segments comprising;

    a power segment configured to provide a segment voltage to the primary processor, the safety processor, and each of the plurality of circuit segments, wherein the power segment is configured to provide variable voltage protection of each circuit segment,wherein the safety processor is configured to receive energy from a power source coupled to the power segment and perform a safety processor self-error check,wherein the safety processor is further configured to energize the primary processor when no errors are detected during the safety processor self-error check,wherein when the primary processor is energized the primary processor is configured to perform a primary processor self-error check, andwherein when no errors are detected during the primary processor self-error check the primary processor sequentially energizes each of the plurality of circuit segments to prevent a large current draw from the plurality of circuit segments being turned on simultaneously in an uncontrolled manner.

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