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. 03, 1984
Filed:
Jan. 11, 1982
Gerhard E Schwarz, Altena, DE;
Braun Aktiengesellschaft, Kronberg, DE;
Abstract
A circuit for supplying a constant DC voltage to an electrical load and, alternatively, a relatively constant DC current to a storage battery connected in parallel with the electrical load, the circuit including a blocking oscillator having a transformer with primary and secondary windings, a switching transistor having first and second load terminals and a control terminal, and a first resistor, the primary winding, the load terminals of the switching transistor and the first resistor being connected in series across an input voltage source, a rectifier connected in series with the electrical load across the secondary winding, a controlling transistor having first and second load terminals and a control terminal, a reference voltage element connected across the load terminals of the controlling transistor and connected to the control terminal of the switching transistor, and a Zener diode having an anode connected to the control terminal of the controlling transistor and a cathode connected to the parallel arrangement of the electrical load and the storage battery.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile