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. 08, 1980
Filed:
Oct. 03, 1977
Suguru Sato, Oobu, JP;
Kazumasa Mori, Aichi, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A first and a second full-wave rectifying network are respectively connected with both ends of generating coils of a generator for respectively generating alternating current thereat. A switching device has normally closed contacts for making voltage differences among the input terminals of the second full-wave rectifying network zero, whereby the coils act as a star-connected current generating winding so long as the contacts are held closed. The switching device also has an energizing coil for actuating the normally-closed contacts to open when the rotational speed of the generator exceeds a predetermined value. When the normally-closed contacts are opened, the coils no longer act as the star-connected winding but an independently generating winding, to thereby increase the output current from the generator even when the generator operates at a relatively high rotational speed. A terminal circuit having a resistor and diodes connected with input terminals of the first full-wave rectifying network supplies base current for a switching transistor of a voltage regulator so that the voltage regulator establishes a separate field excitation at an earlier stage of the rotational speed of the generator.