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公开(公告)号：US10074716B2
公开(公告)日：2018-09-11
申请号：US14875176
申请日：2015-10-05
IPC分类号： H01L21/70 , H01L29/06 , H01L21/265 , H01L21/761 , H01L21/762 , H01L21/763 , H01L21/8234 , H01L21/8238
CPC分类号： H01L29/0646 , H01L21/26513 , H01L21/761 , H01L21/76224 , H01L21/76237 , H01L21/76243 , H01L21/76267 , H01L21/763 , H01L21/823481 , H01L21/823878 , H01L21/823892 , H01L29/0649 , H01L2924/0002 , H01L2924/00
摘要： An isolation structure formed in a semiconductor substrate of a first conductivity type includes a region of a second conductivity type opposite to the first conductivity type. The region of the second conductivity type is saucer-shaped and has a floor portion substantially parallel to the top surface of the substrate and a sloped sidewall portion. The sloped sidewall portion extends downward from the top surface of the substrate at an oblique angle and merges with the floor portion. The floor portion and the sloped sidewall portion together form an isolated pocket of the substrate.
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公开(公告)号：US09622310B2
公开(公告)日：2017-04-11
申请号：US15072642
申请日：2016-03-17
CPC分类号： H05B33/083 , H05B33/0815 , H05B33/0827 , H05B33/086 , H05B37/0254 , Y02B20/32
摘要： According to one aspect, an integrated circuit to control a power supply that supplies power to a plurality of light-emitting diode (LED) strings is provided. The integrated circuit includes an interface circuit to couple to a plurality of serial shift registers that are coupled in a daisy chain. The interface circuit may be configured to receive a plurality of digital values from the plurality of serial shift registers each corresponding to a voltage level at one end of an LED string of the plurality of LED strings and identify a lowest digital value from the plurality of digital values. The integrated circuit may further includes a converter coupled to the interface circuit that is configured to convert the lowest digital value into a control signal and provide the control signal to the power supply to adjust an output voltage of the power supply.
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3.发明申请公开(公告)号：US20160142018A1
公开(公告)日：2016-05-19
申请号：US15001966
申请日：2016-01-20
发明人： Richard K. Williams
IPC分类号： H03F1/02 , H01L29/78 , H01L27/092 , H03F3/185 , H03F3/217
CPC分类号： H01L29/7811 , H01L23/3677 , H01L23/49575 , H01L24/45 , H01L24/48 , H01L24/49 , H01L27/092 , H01L29/407 , H01L29/42372 , H01L29/7802 , H01L29/7813 , H01L2223/6644 , H01L2224/05554 , H01L2224/0603 , H01L2224/45124 , H01L2224/45144 , H01L2224/48137 , H01L2224/48139 , H01L2224/48247 , H01L2224/48464 , H01L2224/49111 , H01L2924/00014 , H01L2924/01013 , H01L2924/01014 , H01L2924/01019 , H01L2924/01028 , H01L2924/0105 , H01L2924/01078 , H01L2924/01079 , H01L2924/10253 , H01L2924/12035 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/15747 , H01L2924/181 , H01L2924/19041 , H03F1/0205 , H03F3/185 , H03F3/2171 , H03F3/2173 , H03F3/68 , H03F2200/03 , H03F2200/351 , H01L2924/00 , H01L2924/00012 , H01L2224/85399 , H01L2224/05599
摘要： A stereo class-D audio system includes a first die including four monolithically integrated NMOS high-side devices and a second a second die including four monolithically integrated PMOS low-side devices. The audio system also includes a set of electrical contacts for connecting the high and low-side devices to components within the a stereo class-D audio system, the set of electrical contacts including at least one supply contact for connecting the drains of the high-side devices to a supply voltage (Vcc) and at least one ground contact for connecting the drains of the low-side devices to ground, the electrical contacts also including respective contacts for each source of the high and low-side devices allowing the source of each high-side device to be connected to the source of a respective low-side device to form two H-bridge circuits.
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公开(公告)号：US09723244B2
公开(公告)日：2017-08-01
申请号：US15160205
申请日：2016-05-20
CPC分类号： H04N5/57 , H05B33/083 , H05B33/0842 , H05B37/0254
摘要： An LED driver IC for driving external strings of LEDs includes a prefix register and a data register connected in series with each other and with the prefix and data registers in other driver ICs. The prefix and data registers of the driver ICs are connected in a daisy chain arrangement with an interface IC. The interface IC loads data identifying a functional latch into the prefix register and data defining a functional condition into the data register of each driver IC. The data in the data register is then transferred to the functional latch to control the functional condition within the LED driver IC.
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公开(公告)号：US20160198533A1
公开(公告)日：2016-07-07
申请号：US15072642
申请日：2016-03-17
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0815 , H05B33/0827 , H05B33/086 , H05B37/0254 , Y02B20/32
摘要： According to one aspect, an integrated circuit to control a power supply that supplies power to a plurality of light-emitting diode (LED) strings is provided. The integrated circuit includes an interface circuit to couple to a plurality of serial shift registers that are coupled in a daisy chain. The interface circuit may be configured to receive a plurality of digital values from the plurality of serial shift registers each corresponding to a voltage level at one end of an LED string of the plurality of LED strings and identify a lowest digital value from the plurality of digital values. The integrated circuit may further includes a converter coupled to the interface circuit that is configured to convert the lowest digital value into a control signal and provide the control signal to the power supply to adjust an output voltage of the power supply.
摘要翻译： 根据一个方面，提供一种用于控制向多个发光二极管（LED）串提供电力的电源的集成电路。 集成电路包括耦合到以菊花链耦合的多个串行移位寄存器的接口电路。 接口电路可以被配置为从多个串行移位寄存器接收多个数字值，每个串行移位寄存器对应于多个LED串的LED串的一端的电压电平，并从多个数字 价值观。 集成电路还可以包括耦合到接口电路的转换器，其被配置为将最低数字值转换为控制信号，并将控制信号提供给电源以调节电源的输出电压。
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公开(公告)号：US20150015325A1
公开(公告)日：2015-01-15
申请号：US14465040
申请日：2014-08-21
发明人： Richard K. Williams
IPC分类号： H02M3/07
CPC分类号： H02M3/07 , G05F3/16 , H02M3/337 , H02M2001/009
摘要： A multiple output charge pump that includes a first flying capacitor, a second flying capacitor, a first output node, a second output node, and a switching network. The first output node is configured to provide a first voltage, and the second output node is distinct from the first output node and is configured to provide a second voltage, different than the first voltage. The switching network is configured to provide a first mode of operation in which the first and second flying capacitors are connected in one of in series with one another between an input voltage and ground or in parallel with one another between the input voltage and ground, a second mode of operation in which the first and second flying capacitors are connected in parallel with one another between ground and the second output node, and a third mode of operation.
摘要翻译： 一种多输出电荷泵，包括第一飞行电容器，第二飞行电容器，第一输出节点，第二输出节点和交换网络。 第一输出节点被配置为提供第一电压，并且第二输出节点与第一输出节点不同，并且被配置为提供不同于第一电压的第二电压。 开关网络被配置为提供第一操作模式，其中第一和第二浮动电容器在输入电压和地之间彼此串联连接，或者在输入电压和地之间彼此并联连接， 第二操作模式，其中第一和第二浮动电容器在地和第二输出节点之间彼此并联连接，以及第三操作模式。
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公开(公告)号：US20140354251A1
公开(公告)日：2014-12-04
申请号：US14459636
申请日：2014-08-14
发明人： Richard K. Williams
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/1584 , H02M2001/009
摘要： A dual-polarity multiple-output boost converter that includes an inductor coupled in series between a high-side switch and a low-side switch. A first terminal of the inductor is coupled to an output of the high-side switch and the second terminal of the inductor is coupled to an input of the low side switch, with an output of low-side switch being coupled to a reference terminal. A plurality of outputs provide a plurality of output voltages, including a first plurality of outputs to provide a first plurality of different output voltages having a first polarity and at least one second output to provide at least one second output voltage having a second polarity opposite the first polarity. A control circuit is coupled to the high-side switch and the low-side switch to control an on-time of the high-side switch and the low-side switch.
摘要翻译： 一种双极性多输出升压转换器，包括在高边开关和低边开关之间串联耦合的电感器。 电感器的第一端子耦合到高侧开关的输出，并且电感器的第二端子耦合到低侧开关的输入端，低侧开关的输出端耦合到参考端子。 多个输出提供多个输出电压，包括第一多个输出以提供具有第一极性的第一多个不同的输出电压和至少一个第二输出，以提供具有与第二极性相反的第二极性的至少一个第二输出电压 第一极性。 控制电路耦合到高侧开关和低侧开关，以控制高侧开关和低侧开关的接通时间。
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公开(公告)号：US08847564B2
公开(公告)日：2014-09-30
申请号：US13632622
申请日：2012-10-01
发明人： Richard K. Williams
CPC分类号： H02M3/1582 , H02M3/158
摘要： A freewheeling MOSFET is connected in parallel with the inductor in a switched DC/DC converter. When the freewheeling MOSFET is turned on during the switching operation of the converter, while the low-side and energy transfer MOSFETs are turned off, the inductor current circulates or “freewheels” through the freewheeling MOSFET. The frequency of the converter is thereby made independent of the lengths of the magnetizing and energy transfer stages, allowing far greater flexibility in operating and converter and overcoming numerous problems associated with conventional DC/DC converters. In one embodiment the freewheeling MOSFET is an N-channel MOSFET with its body connected to circuit ground and not shorted to either its source or its drain.
摘要翻译： 续流MOSFET在开关DC / DC转换器中与电感并联连接。 在转换器开关操作期间续流MOSFET导通时，低边和能量传输MOSFET关断时，电感电流通过续流MOSFET循环或“续流”。 因此，转换器的频率独立于磁化和能量传递级的长度，允许在操作和转换器方面具有更大的灵活性并克服与常规DC / DC转换器相关的许多问题。 在一个实施例中，续流MOSFET是N沟道MOSFET，其主体连接到电路接地并且不短路到其源极或漏极。
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9.发明申请公开(公告)号：US20140285178A1
公开(公告)日：2014-09-25
申请号：US14298074
申请日：2014-06-06
发明人： Richard K. Williams
IPC分类号： G01R19/00
CPC分类号： G01R19/0092 , G01R1/203 , H01L23/49575 , H01L24/03 , H01L24/05 , H01L24/06 , H01L24/16 , H01L24/17 , H01L24/25 , H01L24/45 , H01L24/48 , H01L24/49 , H01L24/73 , H01L27/088 , H01L29/1087 , H01L29/41758 , H01L29/4238 , H01L29/7833 , H01L2224/0401 , H01L2224/04042 , H01L2224/05093 , H01L2224/05558 , H01L2224/05599 , H01L2224/0603 , H01L2224/13099 , H01L2224/16145 , H01L2224/45144 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/48464 , H01L2224/48599 , H01L2224/49111 , H01L2224/49171 , H01L2224/73207 , H01L2224/73257 , H01L2224/85399 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01019 , H01L2924/01022 , H01L2924/01023 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01047 , H01L2924/01074 , H01L2924/01075 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/01083 , H01L2924/014 , H01L2924/10253 , H01L2924/12032 , H01L2924/12035 , H01L2924/1301 , H01L2924/13034 , H01L2924/1305 , H01L2924/13055 , H01L2924/1306 , H01L2924/13062 , H01L2924/13063 , H01L2924/13091 , H01L2924/14 , H01L2924/15747 , H01L2924/181 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H02M2001/0009 , H03K17/0822 , H03K17/18 , H03K2217/0027 , H01L2924/00 , H01L2924/00012
摘要： A current sensor to be connected in series with a power semiconductor device between a voltage supply terminal and ground. The current sensor includes a first terminal to be coupled to the power semiconductor device, a second terminal to be coupled to one of the voltage supply terminal and ground, and a current mirror. The current mirror includes a first MOSFET and a second MOSFET each having a source, a drain, and a gate. The source of the first MOSFET is connected to the source of the second MOSFET and to the second terminal, the drain of the first MOSFET is connected to the first terminal, and the gate of the first MOSFET is connected to the gate of the second MOSFET.
摘要翻译： 与电源端子和地之间的功率半导体器件串联连接的电流传感器。 电流传感器包括要耦合到功率半导体器件的第一端子，要耦合到电压端子和地之一的第二端子以及电流镜。 电流镜包括第一MOSFET和第二MOSFET，每个具有源极，漏极和栅极。 第一MOSFET的源极连接到第二MOSFET的源极和第二端子，第一MOSFET的漏极连接到第一端子，并且第一MOSFET的栅极连接到第二MOSFET的栅极 。
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10.发明授权公开(公告)号：US09500678B2
公开(公告)日：2016-11-22
申请号：US14298074
申请日：2014-06-06
发明人： Richard K. Williams
IPC分类号： G01R19/00 , H01L23/495 , H01L23/00 , H01L27/088 , H01L29/78 , H03K17/082 , H01L29/10 , G01R1/20 , H03K17/18 , H01L29/417 , H01L29/423 , H02M1/00
CPC分类号： G01R19/0092 , G01R1/203 , H01L23/49575 , H01L24/03 , H01L24/05 , H01L24/06 , H01L24/16 , H01L24/17 , H01L24/25 , H01L24/45 , H01L24/48 , H01L24/49 , H01L24/73 , H01L27/088 , H01L29/1087 , H01L29/41758 , H01L29/4238 , H01L29/7833 , H01L2224/0401 , H01L2224/04042 , H01L2224/05093 , H01L2224/05558 , H01L2224/05599 , H01L2224/0603 , H01L2224/13099 , H01L2224/16145 , H01L2224/45144 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2224/48464 , H01L2224/48599 , H01L2224/49111 , H01L2224/49171 , H01L2224/73207 , H01L2224/73257 , H01L2224/85399 , H01L2924/00014 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01015 , H01L2924/01019 , H01L2924/01022 , H01L2924/01023 , H01L2924/01027 , H01L2924/01029 , H01L2924/01033 , H01L2924/01047 , H01L2924/01074 , H01L2924/01075 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/01083 , H01L2924/014 , H01L2924/10253 , H01L2924/12032 , H01L2924/12035 , H01L2924/1301 , H01L2924/13034 , H01L2924/1305 , H01L2924/13055 , H01L2924/1306 , H01L2924/13062 , H01L2924/13063 , H01L2924/13091 , H01L2924/14 , H01L2924/15747 , H01L2924/181 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H02M2001/0009 , H03K17/0822 , H03K17/18 , H03K2217/0027 , H01L2924/00 , H01L2924/00012
摘要： A current sensor to be connected in series with a power semiconductor device between a voltage supply terminal and ground. The current sensor includes a first terminal to be coupled to the power semiconductor device, a second terminal to be coupled to one of the voltage supply terminal and ground, and a current mirror. The current mirror includes a first MOSFET and a second MOSFET each having a source, a drain, and a gate. The source of the first MOSFET is connected to the source of the second MOSFET and to the second terminal, the drain of the first MOSFET is connected to the first terminal, and the gate of the first MOSFET is connected to the gate of the second MOSFET.
摘要翻译： 与电源端子和地之间的功率半导体器件串联连接的电流传感器。 电流传感器包括要耦合到功率半导体器件的第一端子，要耦合到电压端子和地之一的第二端子以及电流镜。 电流镜包括第一MOSFET和第二MOSFET，每个具有源极，漏极和栅极。 第一MOSFET的源极连接到第二MOSFET的源极和第二端子，第一MOSFET的漏极连接到第一端子，并且第一MOSFET的栅极连接到第二MOSFET的栅极 。
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