Systems and methods for controlling a segmented circuit

  • US 9,804,618 B2
  • Filed: 03/26/2014
  • Issued: 10/31/2017
  • Est. Priority Date: 03/26/2014
  • Status: Active Grant
First Claim
Patent Images

1. A method for controlling a surgical instrument, the method comprising:

  • connecting a power assembly to a control circuit, wherein the power assembly is configured to provide a source voltage;

    energizing, by the power assembly, a voltage boost convertor configured to provide a set voltage greater than the source voltage, wherein a motor is coupled to the voltage boost convertor;

    energizing, by the voltage boost convertor, a first regulator configured to receive the set voltage and provide a first operating voltage to a first subset of one or more circuit components, wherein a switch is coupled between the first regulator and the first subset of one or more circuit components, wherein a primary processor is coupled to the switch and the primary processor is configured to open the switch to deactivate the first subset of one or more circuit components to maximize power available for power intense functions requiring additional voltage delivered to the motor;

    energizing, by the first regulator, a second regulator configured to provide a second operating voltage to a second subset of the one or more circuit components, wherein the voltage boost convertor, the first regulator, and the second regulator are coupled in a daisy chain configuration;

    energizing, by the power assembly, an independent voltage regulator;

    generating, by the independent voltage regulator, a constant voltage for a safety processor, wherein the safety processor is configured to provide a shutdown signal when it detects an unsafe condition; and

    verifying, by the safety processor, a voltage provided by each of the voltage boost convertor, the first regulator, and the second regulator,wherein the primary processor and the safety processor are configured to operate a surgical instrument.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×