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. 25, 1995
Filed:
Jan. 26, 1994
Applicant:
Inventor:
Harry J Bittner, Santa Clara, CA (US);
Assignee:
Micrel, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ; G05F / ;
U.S. Cl.
CPC ...
323315 ;
Abstract
One embodiment of this invention provides an improved version of an existing current source circuit. A reduction in die size of the current source is achieved by modifying the circuit to enable a reduction in the capacitance of its feedback capacitor while improving the frequency compensation of its feedback loop. The modification changes the location of the dominant pole in the circuit and utilizes Miller multiplication to increase the effect of the feedback capacitor. The modification also uses pole splitting to further ensure that the feedback loop will not oscillate.