Invention Grant
US09071284B2 Load impedance detection for static or dynamic adjustment of passive loads
有权
负载阻抗检测用于静态或动态调整被动负载
- Patent Title: Load impedance detection for static or dynamic adjustment of passive loads
- Patent Title (中): 负载阻抗检测用于静态或动态调整被动负载
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Application No.: US13646553Application Date: 2012-10-05
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Publication No.: US09071284B2Publication Date: 2015-06-30
- Inventor: Cody B. Wheeland , Ryan Tseng , William H Von Novak
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: G01R27/02
- IPC: G01R27/02 ; H02J17/00 ; H04B5/00
Abstract:
This disclosure provides systems, methods and apparatus for detecting an impedance of a wireless power transmitter load. In one aspect, a method of determining a reactive condition of a wireless power transmitter apparatus is provided. The method comprises determining a value correlated to a voltage of a drain of a switching element of a driver circuit of the wireless power transmitter. The method further comprises determining a reactance load change based on the determined voltage.
Public/Granted literature
- US20130099807A1 LOAD IMPEDANCE DETECTION FOR STATIC OR DYNAMIC ADJUSTMENT OF PASSIVE LOADS Public/Granted day:2013-04-25
Information query
