Integrated circuit wireless communication unit and

专利名称：Integrated circuit wireless communication

unit and method for providing a powersupply

发明人：Hao-Ping Hong,Patrick Stanley Riehl申请号：US14316759申请日：20140626公开号：US09166538B2公开日：20151020

专利附图：

摘要：An integrated circuit is described for providing a power supply to a radiofrequency (RF) power amplifier (PA). The integrated circuit comprises a low-frequency

power supply path comprising a switching regulator and a high-frequency power supplypath arranged to regulate an output voltage of a combined power supply at an outputport of the integrated circuit for coupling to a load. The combined power supply isprovided by the low-frequency power supply path and high-frequency power supplypath. The high-frequency power supply path comprises: an amplifier comprising a voltagefeedback and arranged to drive a power supply signal on the high-frequency powersupply path; and a high-frequency-path supply module arranged to provide a highfrequency supply to drive the amplifier, where the high-frequency-path supply modulecomprises a pulse-width modulator operably coupled to the high frequency supply via afilter and arranged to provide a filtered pulse-width modulated signal to the highfrequency supply.

申请人：MediaTek Singapore Pte. Ltd.

地址：Singapore SG

国籍：SG

代理人：Winston Hsu,Scott Margo

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