Invention Grant
- Patent Title: Voltage offset loop for a switching controller
- Patent Title (中): 开关控制器的电压偏置回路
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Application No.: US13747749Application Date: 2013-01-23
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Publication No.: US09256234B2Publication Date: 2016-02-09
- Inventor: Michael R. Kay , Nadim Khlat
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: G05F1/46
- IPC: G05F1/46 ; H02M1/14 ; H03F1/02 ; H03F1/26 ; H03F3/24 ; H04B15/00 ; H02M1/00

Abstract:
This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.
Public/Granted literature
- US20130141064A1 VOLTAGE OFFSET LOOP FOR A SWITCHING CONTROLLER Public/Granted day:2013-06-06
Information query
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