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. 02, 2004
Filed:
Sep. 27, 2002
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
External output terminal is clamped by clamping circuit , and a current mirror is configured using diode circuit within clamping circuit and detector transistor . When the voltage of external output terminal can no longer be maintained by the first current supply circuit alone as load increases, clamping circuit shuts off, and detector transistor shuts off. As detector transistor shuts off, the second current supplying element becomes conductive and supplies a current to load . Because the second current supplying element is not operating during normal operation during which the current consumption by load is low, the current consumption is low. In addition, because no amplifier is required, only a small number of elements are required.