Systems and methods for controlling a segmented circuit

  • US 10,117,653 B2
  • Filed: 10/06/2017
  • Issued: 11/06/2018
  • Est. Priority Date: 03/26/2014
  • Status: Active Grant
First Claim
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1. A powered surgical instrument, comprising:

  • a housing comprising a motor;

    a shaft extending from said housing;

    an end effector extending from said shaft, wherein said end effector is configured to perform at least one end effector function;

    a power source;

    a processor;

    a motor controller configured to control said motor;

    a control circuit, comprising;

    a first segment configured to supply said processor with a first voltage from said power source;

    a second segment configured to supply said motor controller with a second voltage from said power source, wherein said second voltage is different than said first voltage; and

    a current sensing segment configured to measure current draw of said motor controller; and

    a control circuit safety system configured to provide an additional voltage to said first segment when said second segment experiences a voltage drop due to high current demand from said motor.

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