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:
Aug. 02, 1977
Filed:
Jun. 24, 1976
Richard Jay Blumberg, Poughkeepsie, NY (US);
Jack Arthur Dorler, Wappingers Falls, NY (US);
IBM Corporation, Armonk, NY (US);
Abstract
An improved current switch circuit having an active load. The active load comprises a current source at the collectors of the switch transistors which generates a current which is less than the current generated by the current source at the emitters of the switch transistors. The active load also includes both means for supplying the current difference between said source currents as supplementary current to the emitter current source when the associated switch transistors are conductive as well as means for diverting the source current at the collectors of the switch transistors when they are non-conductive. Depending on the current generated by the current sources, the performance of the circuit can be selected to optimize power dissipation versus switching speed. The circuit utilizes a minimum number resistors, thereby using a minimum amount of semiconductor area and insuring lower power dissipation than is available with prior art circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile