专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明申请

US20090206922A1 Single-chip common-drain JFET device and its applications 失效
公开(公告)号：US20090206922A1
公开(公告)日：2009-08-20
申请号：US12385718
申请日：2009-04-17
申请人： Liang-Pin Tai , Jing-Meng Liu , Hung-Der Su
发明人： Liang-Pin Tai , Jing-Meng Liu , Hung-Der Su
IPC分类号： G05F3/02
CPC分类号： H01L27/098 , H01L27/0744 , H01L29/7722 , H01L29/8083
摘要： A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.

92. 发明申请

US20090201078A1 Single-chip common-drain JFET device and its applications 失效
公开(公告)号：US20090201078A1
公开(公告)日：2009-08-13
申请号：US12385719
申请日：2009-04-17
申请人： Liang-Pin Tai , Jing-Meng Liu , Hung-Der Su
发明人： Liang-Pin Tai , Jing-Meng Liu , Hung-Der Su
IPC分类号： G05F3/02
CPC分类号： H01L27/098 , H01L27/0744 , H01L29/7722 , H01L29/8083
摘要： A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and therefore improving the performance and reducing the package cost. The single-chip common-drain JFET device may be applied in buck converter, boost converter, inverting converter, switch, and two-step DC-to-DC converter to improve their performance and efficiency. Alternative single-chip common-drain JFET devices are also provided for current sense or proportional current generation.

93. 发明授权

US07573211B2 Backlight control circuit 有权
标题翻译：背光控制电路
公开(公告)号：US07573211B2
公开(公告)日：2009-08-11
申请号：US11809850
申请日：2007-06-04
申请人： Jing-Meng Liu
发明人： Jing-Meng Liu
IPC分类号： G05F1/00
CPC分类号： H05B33/0827 , H05B33/0815
摘要： The present invention discloses a backlight control circuit, comprising: a voltage supply circuit, which is a boost converter circuit for receiving an input voltage from an input terminal and generating an output voltage to an output terminal, the output voltage being provided as an operating voltage for a plurality of light emitting devices; at least one input capacitor electrically connected between the input terminal and ground; and at least one output capacitor electrically connected between the output terminal and the input terminal.
摘要翻译：本发明公开了一种背光控制电路，包括：电压供应电路，其是用于从输入端子接收输入电压并向输出端子产生输出电压的升压转换器电路，输出电压被提供为工作电压用于多个发光器件; 至少一个输入电容器电连接在输入端子和地之间; 以及电连接在输出端子和输入端子之间的至少一个输出电容器。

94. 发明申请

US20090066261A1 MULTI-COLOR BACKLIGHT CONTROL CIRCUIT AND MULTI-COLOR BACKLIGHT CONTROL METHOD 有权
标题翻译：多色背光控制电路和多色背光控制方法
公开(公告)号：US20090066261A1
公开(公告)日：2009-03-12
申请号：US11851569
申请日：2007-09-07
申请人： Jing-Meng Liu
发明人： Jing-Meng Liu
IPC分类号： H05B41/36
CPC分类号： H05B33/0866 , H05B33/0827 , H05B33/086
摘要： The present invention discloses a multi-color backlight control circuit, comprising: a plurality of pins for electrically connecting with a plurality of LED strings of different LED colors; and a voltage supply circuit for receiving an input voltage and supplying a single output voltage to the plurality of LED strings of different LED colors. The present invention also discloses a multi-color backlight control method, comprising: supplying a single output voltage to a plurality of LED strings of different LED colors.
摘要翻译：本发明公开了一种多色背光控制电路，包括：多个引脚，用于与多个不同LED颜色的LED串电连接; 以及电压供给电路，用于接收输入电压并将单个输出电压提供给具有不同LED颜色的多个LED串。本发明还公开了一种多色背光控制方法，包括：将单个输出电压提供给不同LED颜色的多个LED串。

95. 发明申请

US20090042395A1 Spacer process for CMOS fabrication with bipolar transistor leakage prevention 审中-公开
标题翻译：采用双极晶体管泄漏防护的CMOS制造的间隔工艺
公开(公告)号：US20090042395A1
公开(公告)日：2009-02-12
申请号：US12285709
申请日：2008-10-14
申请人： Chien-Ling Chan , Jing-Meng Liu , Hung-Der Su
发明人： Chien-Ling Chan , Jing-Meng Liu , Hung-Der Su
IPC分类号： H01L21/311
CPC分类号： H01L21/8249 , H01L21/31105 , H01L21/31116 , H01L21/823864
摘要： A two-step spacer etch is used for the formation of a spacer in CMOS fabrication. A dry etch is first applied to remove part of the spacer material on the silicon substrate and leave a thin layer of the spacer material remained on the silicon substrate. Then, a wet etch is applied to completely remove the thin layer of the spacer material on the silicon substrate. The wet etch has good etch selectivity between the spacer material and silicon, and thus will not damage the surface of the silicon substrate when the spacer is formed. Therefore, the BJT on the silicon substrate is prevented from junction leakage.
摘要翻译：在CMOS制造中使用两步间隔物蚀刻来形成间隔物。首先施加干蚀刻以去除硅衬底上的部分间隔物材料，并留下留在硅衬底上的间隔物材料的薄层。然后，施加湿蚀刻以完全去除硅衬底上的间隔物材料的薄层。湿蚀刻在间隔材料和硅之间具有良好的蚀刻选择性，因此当形成间隔物时不会损坏硅衬底的表面。因此，防止硅衬底上的BJT结漏。

96. 发明申请

US20090015178A1 LED driver and control method thereof 有权
标题翻译： LED驱动及其控制方法
公开(公告)号：US20090015178A1
公开(公告)日：2009-01-15
申请号：US12216837
申请日：2008-07-11
申请人： Jing-Meng Liu
发明人： Jing-Meng Liu
IPC分类号： H05B41/36
CPC分类号： H05B33/0818 , H05B33/0815 , H05B33/0866 , Y02B20/347
摘要： A LED driver providing a LED lighting current to a LED path, extracts the LED lighting current information from the LED path to produce a first signal including an AC component and a DC component, and extracts the DC component information of the first signal to produce a second signal to regulate an average of the LED lighting current. This LED driver implements real constant average current regulation for a LED lighting apparatus, eliminates the need of output capacitor as well as rectifier diode in most applications to simplify the circuit of the power stage, and is applicable to power stages of various modes.
摘要翻译：向LED路径提供LED点亮电流的LED驱动器，从LED路径提取LED点亮电流信息，以产生包括AC分量和DC分量的第一信号，并提取第一信号的DC分量信息以产生第二个信号来调节LED照明电流的平均值。该LED驱动器实现了LED照明装置的实际恒定平均电流调节，在大多数应用中不需要输出电容器以及整流二极管来简化功率级的电路，并且适用于各种模式的功率级。

97. 发明申请

US20080211581A1 Amplifier circuit with internal zeros 失效
标题翻译：具有内部零点的放大器电路
公开(公告)号：US20080211581A1
公开(公告)日：2008-09-04
申请号：US12068774
申请日：2008-02-12
申请人： Hung-Der Su , Jing-Meng Liu , An-Tung Chen , Pao-Chuan Lin
发明人： Hung-Der Su , Jing-Meng Liu , An-Tung Chen , Pao-Chuan Lin
IPC分类号： H03F3/45
CPC分类号： H03F1/26 , H03F1/083 , H03F3/45197 , H03F2203/45356
摘要： An amplifier circuit with internal zeros provides a second pole in addition to a first pole and two zeros such that the second pole can prevent excessive gain at high frequency, so as to have high-frequency noise under control.
摘要翻译：具有内部零点的放大器电路除了第一极点和第二极点之外还提供第二极点，使得第二极点可以在高频下防止过高的增益，从而具有控制的高频噪声。

98. 发明申请

US20080192397A1 Circuit and method for short circuit protection 有权
标题翻译：短路保护电路及方法
公开(公告)号：US20080192397A1
公开(公告)日：2008-08-14
申请号：US12012691
申请日：2008-02-06
申请人： Jing-Meng Liu
发明人： Jing-Meng Liu
IPC分类号： H02H3/20
CPC分类号： H02M1/32
摘要： The present invention discloses a short circuit protection circuit comprising: a first input terminal; a second input terminal; an output terminal; at least two transistors including a first and a second transistors connected in series with each other and electrically connected between the first input terminal and the output terminal; and a voltage source circuit electrically connected with the first input terminal, the second input terminal, the output terminal, and the gates of the first and second transistors.
摘要翻译：本发明公开了一种短路保护电路，包括：第一输入端; 第二输入端; 输出端子; 至少两个晶体管，包括彼此串联连接并电连接在第一输入端和输出端之间的第一和第二晶体管; 以及与第一和第二晶体管的第一输入端子，第二输入端子，输出端子和栅极电连接的电压源电路。

99. 发明申请

US20080111504A1 Backlight control circuit 有权
标题翻译：背光控制电路
公开(公告)号：US20080111504A1
公开(公告)日：2008-05-15
申请号：US11809850
申请日：2007-06-04
申请人： Jing-Meng Liu
发明人： Jing-Meng Liu
IPC分类号： G05F1/00
CPC分类号： H05B33/0827 , H05B33/0815
摘要： The present invention discloses a backlight control circuit, comprising: a voltage supply circuit, which is a boost converter circuit for receiving an input voltage from an input terminal and generating an output voltage to an output terminal, the output voltage being provided as an operating voltage for a plurality of light emitting devices; at least one input capacitor electrically connected between the input terminal and ground; and at least one output capacitor electrically connected between the output terminal and the input terminal.
摘要翻译：本发明公开了一种背光控制电路，包括：电压供应电路，其是用于从输入端子接收输入电压并向输出端子产生输出电压的升压转换器电路，输出电压被提供为工作电压用于多个发光器件; 至少一个输入电容器电连接在输入端子和地之间; 以及电连接在输出端子和输入端子之间的至少一个输出电容器。

100. 发明申请

US20070290736A1 Level shift circuit and method for the same 有权
标题翻译：电平移位电路及方法相同
公开(公告)号：US20070290736A1
公开(公告)日：2007-12-20
申请号：US11497587
申请日：2006-08-02
申请人： Pao-Chuan Lin , Hung-Der Su , An-Tung Chen , Jing-Meng Liu
发明人： Pao-Chuan Lin , Hung-Der Su , An-Tung Chen , Jing-Meng Liu
IPC分类号： H03L5/00
CPC分类号： H03K3/35613 , H03K3/012
摘要： The present invention discloses a level shift circuit which comprises: level shift means for receiving an input of a first operational voltage and generating an output of a second operational voltage; and a current path connecting with a source of the second operational voltage and providing current to the output of the level shift means to speed up output level switching. The circuit preferably further comprises a power consumption control circuit for stopping excess power consumption when the output of the level shift means has substantially accomplished level switching.
摘要翻译：本发明公开了一种电平移位电路，包括：电平移位装置，用于接收第一工作电压的输入并产生第二工作电压的输出; 以及与第二工作电压源连接并将电流提供给电平移位装置的输出的电流路径，以加速输出电平切换。电路优选地还包括功率消耗控制电路，用于在电平移位装置的输出基本上实现电平切换时停止多余的功率消耗。

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