The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2024
Filed:
Jun. 09, 2022
Applicant:
Delta Electronics (Thailand) Public Co., Ltd., Samutprakarn, TH;
Inventors:
Philipp Rehlaender, Paderborn, DE;
Joachim Böcker, Berlin, DE;
Roland Unruh, Paderborn, DE;
Frank Schafmeister, Warburg, DE;
Assignee:
Delta Electronics (Thailand) Public Co., Ltd., Samutprakarn, TH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2007.01); H02M 3/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33573 (2021.05); H02M 1/0054 (2021.05); H02M 3/01 (2021.05);
Abstract
In order to balance the thermal stress of the switches (S-S) of the two legs of an inverter full bridge (), the driving signals are generated using an up-down counter having a modulation period Tof twice the period T of the input voltage (Vin). The up-down counter has a first compare value () of D/4 and a second compare value () of (2+D)/4, where D is the duty cycle and where the second half bridge is phase shifted by the period T.