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:
Sep. 05, 2023
Filed:
Feb. 22, 2022
Hong Kong Applied Science and Technology Research Institute Company Limited, Hong Kong, HK;
Abstract
A power-converter module has a switching Printed Circuit Board (PCB) with power transistors that generate heat. Ground, an input power supply, and an output power supply to the power transistors connect through metal traces on the switching PCB directly to interposer heat sinks that are soldered between the switching PCB and a system PCB. The metal traces and interposer heat sinks carry both supply or ground currents and heat away from the power transistors. These power and ground currents continue from the interposer heat sinks to the system PCB through direct solder joints between the system PCB and the interposer heat sinks. An interposer PCB has a same thickness as the interposer heat sinks and carries control signals from the system PCB to the switching PCB, bypassing the interposer heat sinks. The interposer heat sinks have an interposer portion soldered between the PCBs and fins beyond the switching PCB footprint.