Method of Calibrating a Regulator

Abstract

A method of calibrating a regulator includes: measuring at least one of a voltage and a current; comparing the measurement to a nominal value of the at least one of the voltage and the current; generating a correction parameter of the comparison of the measurement to the nominal value; and storing the correction parameter in a local memory of the regulator.

What is claimed is: 
     
         1 . A method of calibrating a regulator, the method comprising:
 measuring at least one of a voltage and a current;   comparing the measurement to a nominal value of the at least one of the voltage and the current;   generating a correction parameter of the comparison of the measurement to the nominal value; and   storing the correction parameter in a local memory of the regulator.   
     
     
         2 . The method of  claim 1 , further comprising:
 placing the regulator into a first mode;   generating a first correction parameter of the first mode;   placing the regulator into a second mode; and   generating a second correction parameter of the second mode.   
     
     
         3 . The method of  claim 1 , wherein generating a correction parameter of the comparison of the measurement to the nominal value comprises generating a voltage sense offset. 
     
     
         4 . The method of  claim 1 , wherein generating a correction parameter of the comparison of the measurement to the nominal value comprises generating a current sense offset and a gain adjustment for each of multiple modes of operation. 
     
     
         5 . The method of  claim 1 , wherein generating a correction parameter of the comparison of the measurement to the nominal value comprises generating an offset and a gain adjustment for a first power stage and a second power stage. 
     
     
         6 . The method of  claim 1 , wherein generating a correction parameter of the comparison of the measurement to the nominal value comprises generating a look up table comprising a plurality of non-linear corrections of a current sense transfer function. 
     
     
         7 . The method of  claim 1 , further comprising connecting a test system to the regulator, wherein the test system is adapted to:
 control the regulator of a test procedure;   receive the measurement from the regulator;   calculate the correction parameter; and   transfer the correction parameter to the regulator.   
     
     
         8 . The method of  claim 1 , further comprising:
 driving the regulator to generate a known output current, and   wherein measuring the at least one of the voltage and the current comprises measuring the output current with a current sensor exhibiting an error; and   comparing the measurement to the nominal value of the measurement comprises comparing the measurement to the known output current value.