Invention Grant
US08350541B2 Control circuit and method for a soft-start scheme of a switch mode power supply for a power amplifier
有权
用于功率放大器的开关模式电源的软启动方案的控制电路和方法
- Patent Title: Control circuit and method for a soft-start scheme of a switch mode power supply for a power amplifier
- Patent Title (中): 用于功率放大器的开关模式电源的软启动方案的控制电路和方法
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Application No.: US12010997Application Date: 2008-01-31
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Publication No.: US08350541B2Publication Date: 2013-01-08
- Inventor: Martti Ojanen , Janne Tiisanoja
- Applicant: Martti Ojanen , Janne Tiisanoja
- Applicant Address: FI Espoo
- Assignee: Nokia Corporation
- Current Assignee: Nokia Corporation
- Current Assignee Address: FI Espoo
- Agency: Squire Sanders (US) LLP
- Priority: FI20075854 20071129
- Main IPC: G05F1/40
- IPC: G05F1/40 ; G05F1/00
Abstract:
There is provided a control circuit including a sampling controller configured to sample an output voltage of a power converter at an appropriate time slot by opening a control loop. A soft-start circuit configured to enable soft-starting of an internal soft-start reference voltage to start from the sampled output voltage and to control the internal soft-start reference voltage to a predetermined target value in order to pre-charge the output voltage close to an input voltage level, or to continue charging the output voltage to a predetermined output voltage value.
Public/Granted literature
- US20090143032A1 Control circuit and control method Public/Granted day:2009-06-04
Information query
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