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1. 发明授权

US10069412B2 Voltage converter for power management 有权
公开(公告)号：US10069412B2
公开(公告)日：2018-09-04
申请号：US15041723
申请日：2016-02-11
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kyoung-Jin Lee , Ha-Neul Kim , Hyoung-Seok Oh
IPC分类号： H02M3/156 , H02M3/158 , H02M1/00
摘要： A voltage converter includes a converting circuit and a switching control circuit, where the converting circuit includes an inductor connected to a switching node, a first switching device connected between the switching node and a common voltage and a second switching device connected to the switching node, where the first switching device charges the inductor and discharges the inductor in response to a control signal, and the switching control circuit generates the control signal by performing a PWM and a PFM based on a first sensing signal, a second sensing signal and a feedback signal, and adjusts a charging time of the inductor on a time basis, based on at least the input power supply voltage when the switching control circuit performs the PFM.

2. 发明申请

US20160329734A1 VOLTAGE CONVERTER FOR POWER MANAGEMENT 审中-公开
标题翻译：电源管理用电压转换器
公开(公告)号：US20160329734A1
公开(公告)日：2016-11-10
申请号：US15041723
申请日：2016-02-11
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kyoung-Jin Lee , Ha-Neul Kim , Hyoung-Seok Oh
IPC分类号： H02J7/02 , H02J7/04
CPC分类号： H02M3/156 , H02M3/1582 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A voltage converter includes a converting circuit and a switching control circuit, where the converting circuit includes an inductor connected to a switching node, a first switching device connected between the switching node and a common voltage and a second switching device connected to the switching node, where the first switching device charges the inductor and discharges the inductor in response to a control signal, and the switching control circuit generates the control signal by performing a PWM and a PFM based on a first sensing signal, a second sensing signal and a feedback signal, and adjusts a charging time of the inductor on a time basis, based on at least the input power supply voltage when the switching control circuit performs the PFM.
摘要翻译：电压转换器包括转换电路和开关控制电路，其中转换电路包括连接到开关节点的电感器，连接在开关节点和公共电压之间的第一开关器件和连接到开关节点的第二开关器件，其中第一开关装置对电感器充电并响应于控制信号而放电电感器，并且开关控制电路通过基于第一感测信号，第二感测信号和反馈信号执行PWM和PFM来产生控制信号并且当切换控制电路执行PFM时至少基于输入电源电压，基于时间调整电感器的充电时间。

3. 发明授权

US09531249B2 Voltage converter and power management device including the same 有权
标题翻译：电压转换器和电源管理装置包括相同的
公开(公告)号：US09531249B2
公开(公告)日：2016-12-27
申请号：US14518175
申请日：2014-10-20
申请人： Samsung Electronics Co., Ltd.
发明人： Je-Hyung Yoon , Ha-Neul Kim , Hyoung-Seok Oh , Kyoung-Jin Lee , Sang-Ik Cho
IPC分类号： H02M3/156 , H02M3/158 , H02M1/14 , H02M1/00
CPC分类号： H02M1/14 , H02M3/156 , H02M3/1588 , H02M2001/0009 , H02M2001/0032
摘要： A voltage converter includes a driving device unit, a current sensing unit and a switching control circuit. The driving device unit charges an input power supply voltage in an inductor, connected between a switching node and an output node, in response to a first driving control signal, and discharges the inductor in response to a second driving control signal. The current sensing unit generates first and second sensing signals based on a first sensed current, a second sensed current, a voltage at the switching node and a ground voltage. The switching control circuit generates the first and second driving control signals by performing a pulse-frequency modulation (PFM) and a pulse-width modulation (PWM) based on a feedback voltage, a reference voltage and the first and second sensing signals. The switching control circuit adaptively adjusts off-time when the switching control circuit performs the PFM.
摘要翻译：电压转换器包括驱动装置单元，电流检测单元和开关控制电路。驱动装置单元响应于第一驱动控制信号对连接在开关节点和输出节点之间的电感器中的输入电源电压进行充电，并响应于第二驱动控制信号而放电电感器。电流感测单元基于第一感测电流，第二感测电流，开关节点处的电压和接地电压产生第一和第二感测信号。开关控制电路通过基于反馈电压，参考电压以及第一和第二感测信号执行脉冲频率调制（PFM）和脉冲宽度调制（PWM）来产生第一和第二驱动控制信号。当开关控制电路执行PFM时，开关控制电路自适应地调节关断时间。

4. 发明授权

US09058050B2 Clock-based soft-start circuit and power management integrated circuit device 有权
标题翻译：基于时钟的软启动电路和电源管理集成电路器件
公开(公告)号：US09058050B2
公开(公告)日：2015-06-16
申请号：US13713615
申请日：2012-12-13
申请人： Samsung Electronics Co., Ltd.
发明人： Kyoung-Jin Lee , Hee-Mun Bang , Hyoung-Seok Oh , Je-Hyung Yoon
IPC分类号： H02M1/36 , G05F1/46 , H02M3/157
CPC分类号： G05F1/468 , H02M1/32 , H02M1/36 , H02M3/156
摘要： In a clock-based soft-start circuit configured to generate a soft-start reference voltage that restrains an inrush current at an initialization of power supplied to a DC-DC converter, the clock-based soft-start circuit comprises a time setting unit configured to set a soft-start time period in response to a clock signal. A ramp circuit is configured to generate a soft-start reference voltage which is ramped upward or downward between a base level and a reference voltage level during the soft start time period set by the time setting unit. In this manner, the clock-based soft-start circuit is applicable for all DC-DC converters and the soft-start in a linear slope is possible.
摘要翻译：在基于时钟的软启动电路中，基于时钟的软启动电路被配置为产生在提供给DC-DC转换器的电源的初始化时抑制浪涌电流的软启动基准电压，所述基于时钟的软启动电路包括：以响应于时钟信号设置软启动时间段。斜坡电路被配置为产生在由时间设置单元设置的软启动时间段期间在基准电平和基准电压电平之间上升或下降的软启动基准电压。以这种方式，基于时钟的软启动电路适用于所有DC-DC转换器，并且可以在线性斜率中进行软启动。

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