Patents by Inventor Naohiko Morota

Naohiko Morota has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Switching power supply
    Publication number: 20070253228
    Abstract: A feedback circuit (3) generates an error amplification signal VEAO for stabilizing an output voltage Vo at the reference voltage. The reference voltage is set beforehand in the feedback circuit (3). The peak value of drain current ID passing through a switching element (1) is controlled by the error amplification signal VEAO and the output voltage Vo is stabilized. Meanwhile, when a load (132) increases, a reference voltage variable circuit (13) increases the internal reference voltage of the feedback circuit (3) based on the error amplification signal VEAO, so that fluctuations in output voltage due to load fluctuations are reduced.
    Type: Application
    Filed: February 1, 2007
    Publication date: November 1, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naohiko Morota, Kazuhiro Murata