US 12,345,755 B2
Reverse recovery measurements and plots
Vivek Shivaram, Bangalore (IN); Niranjan R Hegde, Siddapur (IN); Parjanya Adiga, Bengaluru (IN); Krishna N H Sri, Bengaluru (IN); Tsuyoshi Miyazaki, Kawaguchi (JP); Yogesh M. Pai, Bengaluru (IN); and Venkatraj Melinamane, Bangalore (IN)
Assigned to Tektronix, Inc., Beaverton, OR (US)
Filed by Tektronix, Inc., Beaverton, OR (US)
Filed on Oct. 28, 2022, as Appl. No. 17/976,644.
Claims priority of application No. 202121050042 (IN), filed on Nov. 1, 2021.
Prior Publication US 2023/0133047 A1, May 4, 2023
Int. Cl. G01R 31/28 (2006.01)
CPC G01R 31/2801 (2013.01) [G01R 31/2834 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A test and measurement instrument, comprising:
a user interface;
one or more probes to connect to a device under test (DUT); and
one or more processors configured to execute code to cause the one or more processors to:
receive waveform data from the DUT after activation of the DUT by application of power from a power supply, and application of at least a first and second pulse from a source instrument;
locate one or more reverse recovery regions in the waveform data;
determine a reverse recovery time for the DUT from the reverse recovery region; and
display a reverse recovery plot of the one or more reverse recovery regions on the user interface, the reverse recovery plot being automatically configured to display one or more of the reverse recovery regions, and including at least one characteristic for the one or more reverse recovery regions annotated on the reverse recovery plot;
wherein the one or more processors are further configured to receive a user input designating a configuration for determination of the reverse recovery time; and
wherein the user input is one of an automatic setting for extrapolation levels, or user-designated settings for extrapolation levels, the extrapolation levels used for a tangent line.