US 12,112,919 B2
Load current derived switch timing of switching resonant topology
Steven J. Geissler, Wellington, CO (US)
Assigned to Kaufman & Robinson, Inc., Fort Collins, CO (US)
Filed by Kaufman & Robinson, Inc., Fort Collins, CO (US)
Filed on Oct. 10, 2023, as Appl. No. 18/483,869.
Application 18/483,869 is a continuation of application No. 17/558,527, filed on Dec. 21, 2021, granted, now 11,823,867.
Claims priority of provisional application 63/191,158, filed on May 20, 2021.
Prior Publication US 2024/0038495 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01J 37/32 (2006.01); H05H 1/46 (2006.01)
CPC H01J 37/32174 (2013.01) [H05H 1/4645 (2021.05)] 29 Claims
OG exemplary drawing
 
1. A processing system, the system comprising:
a power switching circuit configured to provide a power signal to a resonant load, wherein the power signal switches between a first voltage and a second voltage at a frequency of the resonant load, and wherein the power switching circuit is configured to predict a future switch time of the power signal based upon a time measured from a prior switch time, and wherein the power switching circuit begins switching the power signal between the first voltage and the second voltage before the future switch time.
 
15. A method for powering a resonant load, the method comprising:
providing a power signal to the resonant load, wherein the power signal transitions through a level based in part upon operation of the resonant load;
detecting a first transition in the power signal through the level;
predicting a future switch time of the power signal based upon a time measured from the first transition; and
beginning a second transition in the power signal through the level before the future switch time.