Invention Grant
- Patent Title: Amplifier circuit
- Patent Title (中): 放大器电路
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Application No.: US14027109Application Date: 2013-09-13
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Publication No.: US09118283B2Publication Date: 2015-08-25
- Inventor: Koen Buisman , Mark Pieter van der Heijden , Mustafa Acar , Leo de Vreede
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP, B.V.
- Current Assignee: NXP, B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP12184587 20120914
- Main IPC: H03F3/217
- IPC: H03F3/217

Abstract:
An amplifier circuit comprising a driver (204, 304) configured to provide a switched mode input signal, a switching mode power amplifier (206, 306) configured to receive the switched mode input signal and provide an output signal for an external load (210, 310); and a sensor (208, 308) configured to sense the impedance of the external load (210, 310) The driver is configured to set the duty cycle of the switched mode input signal in accordance with the sensed impedance of the external load (210, 310).
Public/Granted literature
- US20140077877A1 AMPLIFIER CIRCUIT Public/Granted day:2014-03-20
Information query
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