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:
Sep. 23, 2014
Filed:
Dec. 17, 2012
Google Inc., Mountain View, CA (US);
Arnd Geis, San Carlos, CA (US);
Benjamin Joseph Mossawir, Mountain View, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
Systems and method that provide short circuit protection for a power amplifier are described. The system can include, for example, a sense network that receives an output current from the power amplifier that is to be protected. The sense network can include, for example, a first resistor and a second resistor in series. The sense amplifier has a first input and a second input in which the first input is coupled to a first end of the first resistor and in which second input is coupled to a second end of the first resistor. The sense amplifier amplifies a voltage across the first resistor of the sense network in which the voltage is based on the output current from the power amplifier. Based on the amplified voltage of the sense amplifier, the feedback network reduces the output current from the power amplifier to protect the power amplifier from damage due to a short circuit condition.