Invention Grant
- Patent Title: RF switching converter with ripple correction
- Patent Title (中): RF开关转换器具有纹波校正功能
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Application No.: US13661227Application Date: 2012-10-26
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Publication No.: US09484797B2Publication Date: 2016-11-01
- Inventor: Nadim Khlat
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: G05F1/00
- IPC: G05F1/00 ; H02M1/15 ; H02M3/156

Abstract:
This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. In one embodiment, an RF switching converter includes a switching circuit operable to receive a power source voltage, a switching controller configured to switch the switching circuit so that the switching circuit generates a pulsed output voltage from the power source voltage, and an RF filter configured to convert the pulsed output voltage into a supply voltage, wherein the RF filter includes a decoupling capacitor configured to receive the supply voltage. The switching controller is configured to generate a ripple correction current that is injected into the decoupling capacitor such that the decoupling capacitor filters the ripple correction current. The decoupling capacitor outputs the ripple correction current such that the ripple correction current reduces a ripple variation in a supply current level of a supply current resulting from the supply voltage.
Public/Granted literature
- US09450480B2 RF switching converter with ripple correction Public/Granted day:2016-09-20
Information query
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