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:
Nov. 01, 1977
Filed:
May. 30, 1975
Applicant:
Inventors:
Takuya Endo, Yokohama, JA;
Toshio Hirota, Yokohama, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320-3 ; 320 15 ; 320 39 ; 323-4 ; 318139 ;
Abstract
A system constituted at a relatively large capacity and low output first battery such as a fuel cell, a smaller capacity and higher output second battery, and a current-limiting circuit for restricting the maximum discharge current of the first battery to a predetermined value slightly above the open-circuit voltage of the second battery, which circuit consists of a measuring circuit for measuring the discharge current, a signal generating circuit for providing a reference signal representing the predetermined current, a comparator for the comparison between the reference signal and the measured current and a current flow control circuit operated by the output of the comparator.