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:
Aug. 25, 2020
Filed:
Mar. 01, 2018
Hella Gmbh & Co. Kgaa, Lippstadt, DE;
Andre Korner, Lippstadt, DE;
Other;
Abstract
A hybrid switch apparatus includes a standard semiconductor switch and a fast semiconductor switch electrically arranged in parallel to form a joint output current path for carrying a load current. The standard switch may be a silicon (Si) MOSFET while the fast switch may be a GaN high electron mobility transistor (HEMT). A means for producing first and second gate drive signals includes a pulse former. The first gate drive signal is applied the standard switch for selectively turning the standard switch on and off. The pulse former outputs the second gate drive signal for driving the fast switch, where the pulse former generates the second gate drive signal as a switch-on pulse starting synchronously with each transition of the first gate drive signal and which generates the second gate drive signal in an OFF state in between pulses to avoid incurring a conduction loss in the fast switch.