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:
Jul. 02, 2002
Filed:
Apr. 24, 2001
Yukio Yasuda, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A power converter individually comprises a first semiconductor device < > and a second semiconductor device < >. In the first semiconductor device < >, a power conversion element such as an IGBT < >, Zener diodes < >, a waveform shaping circuit < >, a heating cutoff circuit < > and a protective element < > are formed on the same chip employing a p-type silicon substrate. In the second semiconductor device < >, a Schmidt circuit < >, a power supply circuit < >, a high voltage detection circuit < >, a protective element < >, a logic gate < > and an output circuit formed by a pnp transistor < > are formed on the same chip employing a p-type silicon substrate. Thus, a power converter capable of reducing the circuit scale as a whole is obtained.