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:
Apr. 06, 2010
Filed:
Jun. 28, 2007
Hiroshi Yoshida, Miura-gun, JP;
Taro Aoki, Zushi, JP;
Fumihiko Endo, Fujinomiya, JP;
Takayoshi Watanabe, Fujiyoshida, JP;
Katsuki Fujimoto, Osaka, JP;
Osamu Numamoto, Osaka, JP;
Hiroshi Yoshida, Miura-gun, JP;
Taro Aoki, Zushi, JP;
Fumihiko Endo, Fujinomiya, JP;
Takayoshi Watanabe, Fujiyoshida, JP;
Katsuki Fujimoto, Osaka, JP;
Osamu Numamoto, Osaka, JP;
Japan Agency for Marine-Earth Science and Technology, Yokosuka-shi, JP;
Abstract
The present invention provides a power unit of an underwater vehicle, which allows reduction in size and weight of a transformer for stepping down a power voltage of a power supply to increase a loading amount of a variety of devices with respect to the underwater vehicle, so as to obtain a favorable operating environment. The power unit is connected to the power supply through a cable and receives power through the cable. Further, the power unit comprises an electronic transformer having: a rectifier for rectifying a high-voltage alternate current power of the power supply into a direct current; a high-frequency converter for converting an output of the rectifier into a high-frequency alternate current; a transformer for stepping down an output voltage of the high-frequency converter; a rectifier for rectifying an output of the transformer into a direct current; and a control circuit for controlling the high-frequency converter.