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1. 发明授权

US09461548B2 Switch control circuit, switch control method and power supply device using the same 有权
标题翻译：开关控制电路，开关控制方式及使用电源装置
公开(公告)号：US09461548B2
公开(公告)日：2016-10-04
申请号：US14211635
申请日：2014-03-14
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Won-Tae Lee , Kyung-Oun Jang , Sung-Won Yun , Min-Woo Lee
IPC分类号： H02M1/32 , H02M3/335 , H02M1/00 , G01R31/02
CPC分类号： H02M3/33507 , G01R31/025 , H02M1/32 , H02M2001/0009
摘要： Embodiment relates to a switch control circuit, a switch control method, and a power supply using the switch control circuit. The power supply supplies power to a load using an input voltage. The switch control circuit controls a switching operation of the power switch that controls the power supply. The switch control circuit detects a duty of the power switch using a signal for controlling the switching operation of the power switch, detects the load using the feedback voltage, and determines a short-circuit of the sense resistor according to the detected duty and the detected load.
摘要翻译：实施例涉及开关控制电路，开关控制方法和使用开关控制电路的电源。电源使用输入电压为负载供电。开关控制电路控制控制电源的电源开关的切换动作。开关控制电路使用用于控制电源开关的开关操作的信号来检测电力开关的占空比，使用反馈电压检测负载，并根据检测到的占空比确定检测电阻器的短路，并且检测到加载。

2. 发明授权

US09502983B2 Power supply device capable of varying switching frequency according to load condition 有权
标题翻译：电源设备能够根据负载条件改变开关频率
公开(公告)号：US09502983B2
公开(公告)日：2016-11-22
申请号：US14668852
申请日：2015-03-25
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Kyung-Oun Jang , In-Ki Park , Hyun-Chul Eum , Sung-Won Yun
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A power supply device includes a power switch, a power delivering means configured to convert an input in accordance with switching operation of the power switch and output a result, and a switch control circuit configured to linearly control switching frequency of the power switch in accordance with an output detection voltage corresponding to an output voltage according to the output.
摘要翻译：电源装置包括电源开关，电力输送装置，被配置为根据电源开关的切换操作转换输入并输出结果;以及开关控制电路，被配置为线性地控制电源开关的开关频率，与输出对应的输出检测电压。

3. 发明授权

US09035681B2 Switch controller, switch control method, and power supply device comprising the switch controller 有权
标题翻译：开关控制器，开关控制方式以及包括开关控制器的电源装置
公开(公告)号：US09035681B2
公开(公告)日：2015-05-19
申请号：US13886412
申请日：2013-05-03
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Min-Woo Lee , Kyung-Oun Jang
IPC分类号： H03K3/00 , H03K5/00 , H02M3/156 , H03K17/082 , H02M1/32 , H02M1/00 , G01R31/02
CPC分类号： H03K5/00006 , G01R31/025 , H02M1/32 , H02M3/156 , H02M2001/0009 , H03K17/0822 , H03K2217/0027
摘要： The present invention relates to a switch controller, a switch control method, and a power supply using the switch controller.A switch controller controls switching operation of a power switch and receives a sense voltage of a sense resistor to which a drain current flowing in the power switch flows. The switch controller generates a sum signal using the sense voltage and a ramp signal having a cycle that is the same as a switching cycle of the power switch. The switch controller determines short-circuit of the sense resistor by detecting slope variation of the sum signal.
摘要翻译：本发明涉及开关控制器，开关控制方法以及使用开关控制器的电源。开关控制器控制电源开关的开关操作，并接收流过功率开关的漏极电流的检测电阻的检测电压。开关控制器使用感测电压和具有与电源开关的开关周期相同的周期的斜坡信号来产生和信号。开关控制器通过检测和信号的斜率变化来确定感测电阻器的短路。

4. 发明授权

US09350341B2 Gate driver, switch control circuit and power supply device comprising the gate driver circuit 有权
标题翻译：栅极驱动器，开关控制电路和包括栅极驱动电路的电源装置
公开(公告)号：US09350341B2
公开(公告)日：2016-05-24
申请号：US14301970
申请日：2014-06-11
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Won-Tae Lee , Kyung-Oun Jang , Sung-Won Yun , Min-Woo Lee
IPC分类号： H03K17/16
CPC分类号： H03K17/165
摘要： The present invention relates to a gate driving circuit, a switch control circuit including the gate driving circuit, and a power supply. The gate driving circuit generates a gate voltage of the power switch. The gate driving circuit includes: a delay control circuit generating a first control signal that controls a rising slope of the gate voltage at a first time after a first delay period is passed from a rising time of the gate voltage and generating a second control signal that controls the rising slope of the gate voltage at a time after a second delay period is passed from the first time; and a temperature compensation circuit that varies the first delay period according to a temperature.
摘要翻译：栅极驱动电路，包括栅极驱动电路的开关控制电路和电源技术领域本发明涉及一种栅极驱动电路，栅极驱动电路产生电源开关的栅极电压。栅极驱动电路包括：延迟控制电路，产生第一控制信号，该第一控制信号在从栅极电压的上升时间经过第一延迟时间之后的第一时间控制栅极电压的上升斜率，并产生第二控制信号，在从第一次通过第二延迟时间之后的一个时间控制栅极电压的上升斜率; 以及根据温度改变第一延迟周期的温度补偿电路。

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