专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09755502B2 Start-up circuit and power device using the same 有权
公开(公告)号：US09755502B2
公开(公告)日：2017-09-05
申请号：US14694040
申请日：2015-04-23
申请人： SOLUM CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Sang Hyun Cha , Soo Hyun Moon , Hye Jin Lee , Joong Ho Choi , Ji Hwan Kim , Chang Seok Lee , Yun Joong Lee
IPC分类号： H02M1/36 , H02M3/335 , H02M1/00
CPC分类号： H02M1/36 , H02M3/335 , H02M3/33507 , H02M2001/0006
摘要： Disclosed herein are a start-up circuit capable of reducing a leakage current to reduce power consumption, and a power device using the same. The start-up circuit includes: a bias unit connected between a first power source and a second power source and allowing a first current to flow from the first power source to the second power source according to a predetermined voltage; a first start unit connected to the bias unit and driving a second current to apply the predetermined voltage to the bias unit, and stopping driving the second current when a voltage received from the second power source reaches a first voltage; and a second start unit connected to the bias unit and driving a third current, the predetermined voltage being applied to the bias unit by the third current, and stopping driving the third current upon receiving a stop signal.

2. 发明授权

US09066399B2 Illumination driving apparatus for light emitting diode and method thereof 有权
标题翻译：发光二极管照明驱动装置及其方法
公开(公告)号：US09066399B2
公开(公告)日：2015-06-23
申请号：US13839145
申请日：2013-03-15
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
发明人： Deuk Hee Park , Joong Ho Choi , Sang Hyun Cha , Jae Shin Lee , Chang Seok Lee , Yun Joong Lee
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H05B33/08
CPC分类号： H05B33/0845 , H05B33/083
摘要： There is provided an illumination driving apparatus for a light emitting diode, the apparatus including: a light emitting unit including M number of light emitting diodes (LEDs) connected in series and driven by an output voltage rectified in a rectifying unit; an LED switch unit including N number of LED switches connected in parallel with at least N number of the M LEDs, respectively, and connected in series; an LED switch control signal generating unit comparing the output voltage of the rectifying unit with each of the first to Nth preset reference voltages to generate N number of LED switch control signals controlling the LED switch unit; and an LED switch controlling unit transferring the N number of LED switch control signals to the LED switch unit.
摘要翻译：提供了一种用于发光二极管的照明驱动装置，该装置包括：发光单元，包括M个串联连接并由整流单元整流的输出电压驱动的发光二极管（LED）; LED开关单元，其分别包括与至少N个M个LED并联连接的N个LED开关并串联连接; LED开关控制信号发生单元，将整流单元的输出电压与第一至第N预设参考电压中的每一个进行比较，以产生控制LED开关单元的N个LED开关控制信号; 以及将N个LED开关控制信号传送到LED开关单元的LED开关控制单元。

3. 发明授权

US09066395B2 Power supply device and control circuit thereof 有权
标题翻译：电源装置及其控制电路
公开(公告)号：US09066395B2
公开(公告)日：2015-06-23
申请号：US14063983
申请日：2013-10-25
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Dae Hoon Han , Seo Hyung Kim , Seung Ryung Ryu , Joong Ho Choi , Joo Hyung Lee , Hong Jin Kim , Jae Shin Lee , Kang Yoon Lee
IPC分类号： H05B33/08 , G05F1/613 , H05B37/02
CPC分类号： H05B33/0815 , H05B33/0818 , H05B37/02 , Y02B20/346
摘要： There are provided a power supply device switching power input to a primary side to supply the power to a predetermined load connected to a secondary side electrically insulated from the primary side and a control circuit thereof. The control circuit generates a predetermined PWM signal to apply the PWM signal to a dimming switch connected to an end of the load and controls a switching frequency of the primary side, based on a control voltage generated according to a feedback signal according to the power supplied to the load and the PWM signal, and the control voltage maintains a constant difference between a minimum voltage level and a maximum voltage level regardless of a duty of the PWM signal.
摘要翻译：提供了一个电源装置，其将功率输入切换到初级侧，以向连接到与初级侧电绝缘的次级侧的预定负载及其控制电路供电。控制电路产生预定的PWM信号，以将PWM信号施加到连接到负载端的调光开关，并且基于根据所提供的电力产生的反馈信号产生的控制电压来控制初级侧的开关频率对于负载和PWM信号，并且控制电压在最小电压电平和最大电压电平之间保持恒定的差异，而与PWM信号的占空比无关。

4. 发明授权

US09270165B2 Phase shift circuit and power factor correction circuit including the same 有权
标题翻译：相移电路和功率因数校正电路包括相同
公开(公告)号：US09270165B2
公开(公告)日：2016-02-23
申请号：US13892033
申请日：2013-05-10
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Yu Jin Jang , Hwan Cho , Yong Seong Roh , Young Jin Moon , Jeong Pyo Park , Joong Ho Choi , Jeong Mo Yang , Chang Sik Yoo
IPC分类号： H02M1/42 , H02M1/14 , H02M3/158
CPC分类号： H02M1/4225 , H02M1/14 , H02M3/1584 , H02M2001/4291 , H02M2003/1586 , Y02B70/126
摘要： There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a switching circuit unit charging power in or discharging power from a capacitor through a plurality of switching devices and comparing a voltage of the capacitor with a predetermined reference voltage, and a clock generating unit generating a reference clock signal based on an output of the switching circuit unit, wherein the switching circuit unit turns the plurality of switching devices on or off, based on currents from inductors respectively included in a main circuit and a sub-circuit of a power factor correction circuit to determine a polarity of the voltage of the capacitor.
摘要翻译：提供了一种相移电路和包括该相移电路的功率因数校正电路。相移电路包括：开关电路单元，通过多个开关器件对来自电容器的功率进行充电，并将电容器的电压与预定参考电压进行比较;以及时钟产生单元，其基于开关电路单元的输出，其中开关电路单元基于分别包括在功率因数校正电路的主电路和子电路中的电感器的电流来打开或关闭多个开关装置，以确定电容的电压。

5. 发明授权

US09225235B2 Power factor correction circuit 有权
标题翻译：功率因数校正电路
公开(公告)号：US09225235B2
公开(公告)日：2015-12-29
申请号：US13892013
申请日：2013-05-10
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Yu Jin Jang , Hwan Cho , Yong Seong Roh , Young Jin Moon , Jeong Pyo Park , Chang Sik Yoo , Jeong Mo Yang , Joong Ho Choi
IPC分类号： H02M1/36 , H02M1/42 , H02M1/00
CPC分类号： H02M1/36 , H02M1/4225 , H02M2001/0022 , Y02B70/126
摘要： There is provided a power factor correction circuit including: a power conversion circuit unit controlling an inductor current according to a switching signal applied to a main switch to convert an external input voltage into an output voltage having a predetermined range; an imbalance detection circuit outputting an imbalance state signal when the external input voltage is in an unbalanced state by using the inductor current; and a soft start circuit unit performing soft starting by adjusting the switching signal when the imbalance state signal is output by the imbalance detection circuit unit.
摘要翻译：提供了一种功率因数校正电路，包括：功率转换电路单元，根据施加到主开关的开关信号来控制电感器电流，以将外部输入电压转换成具有预定范围的输出电压; 当外部输入电压通过使用电感器电流处于不平衡状态时，输出不平衡状态信号的不平衡检测电路; 以及软启动电路单元，通过在由不平衡检测电路单元输出不平衡状态信号时调节开关信号来进行软启动。

6. 发明授权

US08907719B2 IC circuit 有权
标题翻译： IC电路
公开(公告)号：US08907719B2
公开(公告)日：2014-12-09
申请号：US13678491
申请日：2012-11-15
申请人： Samsung Electro-Mechanics Co., Ltd. , University of Seoul Industry Cooperation Foundation
发明人： Joon Youp Sung , Jae Shin Lee , Joong Ho Choi , Yong Seong Roh , Ho Joon Jang , Chang Sik Yoo , Jung Sun Kwon , Young Jin Moon
IPC分类号： G05F1/10 , G05F3/16
CPC分类号： G05F3/16 , G05F3/26
摘要： The present invention relates to an IC circuit. In an embodiment, an IC circuit includes: an RT terminal connected to an external; a current mirroring unit conducting a channel current between internal voltage power and the RT terminal and generating an internal reference current mirrored with the channel current; a negative feedback unit receiving the internal reference current, equalizing voltages of an RT terminal connection terminal and an internal reference current output terminal of the current mirroring unit to make the internal reference current constant, and providing the internal reference current inside the IC circuit; and an IC state indicating unit having a transistor, which operates complementarily with the current mirroring unit, connected between the RT terminal and a ground and providing the state of an IC or a system to the RT terminal by being linked with the complementary operation of the current mirroring unit.
摘要翻译： IC电路技术领域本发明涉及IC电路。在一个实施例中，IC电路包括：连接到外部的RT终端; 电流镜像单元，在内部电压电源和RT端子之间进行通道电流，并产生与通道电流镜像的内部参考电流; 接收内部参考电流的负反馈单元，使电流镜像单元的RT端子连接端子和内部参考电流输出端子的电压相等，使内部参考电流恒定，并在IC电路内提供内部参考电流; 以及IC状态指示单元，其具有连接在RT端子和地之间与电流镜像单元进行互补操作的晶体管，并且通过与RT端子的互补操作相关联地向RT端子提供IC或系统的状态当前镜像单元。

7. 发明授权

US09843251B2 Rectifier and method of controlling the same 有权
公开(公告)号：US09843251B2
公开(公告)日：2017-12-12
申请号：US15179227
申请日：2016-06-10
申请人： Samsung Electro-Mechanics Co., Ltd. , University of Seoul Industry Cooperation Foundation
发明人： Byung Joo Hong , Jong Woo Lee , Hyung Gu Park , Young Jun Park , Seong Jin Oh , Kang Yoon Lee , Joong Ho Choi , Hong Jin Kim , Je Hyuk Ryu , Jung Yeon Kim
IPC分类号： H02M3/335 , H02M1/08 , H02M7/219 , H02M1/00
CPC分类号： H02M1/08 , H02M7/219 , H02M2001/0009 , H02M2007/2195 , Y02B70/1408
摘要： A rectifier includes: a rectifying circuit configured to rectify alternating current (AC) power into direct current (DC) power through a switching operation; a driver configured to apply a switching signal to the rectifying circuit; and a signal modulator configured to select a parameter from among parameters of the switching signal based on a frequency of the switching signal, and adjust the selected parameter.

8. 发明授权

US09780771B2 Gate driving circuit including constant current sources, and switching apparatus and power supply apparatus having the same 有权
公开(公告)号：US09780771B2
公开(公告)日：2017-10-03
申请号：US14288070
申请日：2014-05-27
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Sang Hyun Cha , Deuk Hee Park , Yun Joong Lee , Joong Ho Choi , Je Hyeon Yu , Hyeon Seon Yu , Chang Seok Lee
IPC分类号： H02M3/335 , H03K17/06 , H03K17/687
CPC分类号： H03K17/063 , H02M3/33507 , H03K17/687
摘要： A gate driving circuit may include: a bias unit receiving an input signal having preset high and low signal levels, including a first N-MOSFET turned on in the case in which the input signal has the high level and a first P-MOSFET turned on in the case in which the input signal has the low level, and supplying bias powers by the turning-on of the first N-MOSFET and the first P-MOSFET; and an amplifying unit including a second N-MOSFET turned on by receiving the bias power supplied from the first N-MOSFET in the case in which the input signal has the high level and a second P-MOSFET turned on by receiving the bias power supplied from the first P-MOSFET turned on in the case in which the input signal has the low level and providing a gate signal depending on the turning-on of the second N-MOSFET and the second P-MOSFET.

9. 发明授权

US09923554B2 Wireless power transmitter 有权
公开(公告)号：US09923554B2
公开(公告)日：2018-03-20
申请号：US15196524
申请日：2016-06-29
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Byung Joo Hong , Je Hyuk Ryu , Hyung Gu Park , Joong Ho Choi , Hong Jin Kim , Joo Young Lee , Dong Hyeon Seo , Young Jun Park , Jong Woo Lee , Kang Yoon Lee
IPC分类号： H03K4/502 , H04L1/24 , H04J11/00 , H03F3/24 , H03F1/02 , H03K3/0231 , H03K3/84
CPC分类号： H03K4/502 , H02J7/025 , H03F1/025 , H03F3/245 , H03F2200/114 , H03K3/0231 , H03K3/84 , H04J11/0023 , H04L1/242
摘要： A wireless power transmitter includes an amplifier configured to amplify a power; a transmitter configured to resonate the power amplified by the amplifier; and a reference signal provider configured to provide a reference signal to the amplifier and change a frequency of the reference signal.

10. 发明授权

US09252655B2 Phase shift circuit and power factor correction circuit including the same 有权
标题翻译：相移电路和功率因数校正电路包括相同
公开(公告)号：US09252655B2
公开(公告)日：2016-02-02
申请号：US13861295
申请日：2013-04-11
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD. , University of Seoul Industry Cooperation Foundation
发明人： Jeong Mo Yang , Hwan Cho , Yong Seong Roh , Young Jin Moon , Jeong Pyo Park , Chang Sik Yoo , Yu Jin Jang , Joong Ho Choi
IPC分类号： H02M3/158 , H02M1/42
CPC分类号： H02M1/4225 , Y02B70/126 , Y02P80/112
摘要： A phase shift circuit may include a ramp generation unit charging or discharging a capacitor connected to a switch device to generate a ramp signal, a reference signal generation unit generating a predetermined reference signal from the ramp signal, and a comparison unit comparing the ramp signal with the reference signal to generate a clock signal, wherein at least one of the reference signal generation unit and the comparison unit changes a negative or positive value of offset components included in the reference signal or the ramp signal within every operating period of the switch device.
摘要翻译：相移电路可以包括斜坡发生单元，对连接到开关装置的电容器进行充电或放电以产生斜坡信号，参考信号产生单元从斜坡信号产生预定参考信号，以及比较单元，将斜坡信号与所述参考信号用于产生时钟信号，其中所述参考信号生成单元和所述比较单元中的至少一个在所述开关装置的每个操作周期内改变包括在所述参考信号或所述斜坡信号中的偏移分量的负值或正值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式