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Implementing voltage sense point switching for regulators

  • US 10,340,785 B2
  • Filed: 07/14/2018
  • Issued: 07/02/2019
  • Est. Priority Date: 06/13/2017
  • Status: Active Grant
First Claim
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1. A method for implementing voltage sense point switching for regulators comprising:

  • providing a first sense point at a non-switched sense location, said first sense point being always on;

    providing a second sense point at a location to be switched;

    said second sense point optionally being switched off controlled using a transistor switch;

    providing a first operational amplifier coupled to said first sense point and a second operational amplifier coupled to said second sense point, and connecting a first diode to an output of said first operational amplifier and connecting a second diode to an output of said second operational amplifier;

    providing a circuit output at said first and second diodes to a remote sense input to a regulator;

    providing switched loads having gains at each of said first and second sense points to make up for a voltage drop in said transistor switch at maximum load; and

    said first sense point functioning as an over-voltage protection to limit the voltage drop in said transistor switch.

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