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:
May. 13, 2025
Filed:
Dec. 21, 2022
Mitsubishi Electric Corporation, Tokyo, JP;
Shin Suzuki, Tokyo, JP;
Toshiya Tadakuma, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power module includes at least one semiconductor switching element and at least one output terminal. At the output terminal, a voltage changes as a result of switching of connection relation with a power supply line in accordance with on and off of the semiconductor switching element. A self-generating power supply circuit includes an input node connected to the output terminal with a first capacitor being interposed, a diode connected in a predetermined connection direction between the input node and an output node, a second capacitor connected between the output node and a reference node, and a resistor connected between the input node and a ground line. The second capacitor holds a voltage across the reference node and the output node, in polarity in accordance with the connection direction of the diode.