公开(公告)号：US09490762B2

公开(公告)日：2016-11-08

申请号：US14681569

申请日：2015-04-08

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yi Jun Duan

IPC: H03F3/45 ,  H02H9/04

CPC classification number: H03F3/45179 ,  H02H9/043 ,  H03F3/45071 ,  H03F3/45183 ,  H03F2200/471 ,  H03F2203/45022 ,  H03F2203/45526 ,  H03F2203/45674

Abstract: Described herein is an electronic device. The electronic device includes a unity gain buffer having an input coupled to an input node to receive an input voltage and an output coupled to an output node. A current sink circuit operates in a sleep mode in an absence of a sink current flowing into the output node, and operates in a sinking mode to sink the sink current from the output node to a reference supply node when the sink current flows into the output node.

Abstract translation: 这里描述的是电子设备。 电子设备包括单位增益缓冲器，其具有耦合到输入节点的输入以接收输入电压和耦合到输出节点的输出。 电流吸收电路在没有流入输出节点的吸收电流的情况下以睡眠模式工作，并且当吸收电流流入输出端时工作在吸收模式以将吸收电流从输出节点吸收到参考供应节点 节点。

公开(公告)号：US09461545B2

公开(公告)日：2016-10-04

申请号：US14493436

申请日：2014-09-23

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Hai Bo Zhang ,  Sanford Li

IPC: H02M3/158 ,  H02M1/36 ,  H03K17/04

CPC classification number: H02M3/1588 ,  H02M1/36 ,  H02M3/158 ,  H03K17/04 ,  H03K17/162 ,  H03K2217/0054 ,  Y02B70/1466

Abstract: A first softstart signal indicates operation in a load phase for a boost rectifier and a second softstart signal indicates operation in a pulse drive phase which follows the load phase. A rectification transistor is actuated for the duration of the load phase in response to the first softstart circuit to generate a rising output voltage. The rectification transistor is further repeatedly actuated during the pulse drive phase in response to the second softstart circuit to generate a boosted output voltage. A first transistor coupled between a first conduction terminal and a body terminal of the rectification transistor is actuated, and a second transistor coupled between the body terminal and a second conduction terminal of the rectification transistor is deactuated, during the load phase. The first transistor is deactuated, and the second transistor is actuated, during the pulse drive phase.

Abstract translation: 第一软启动信号指示用于升压整流器的负载阶段的操作，并且第二软启动信号指示在跟随负载阶段的脉冲驱动阶段中的操作。 响应于第一软启动电路，整流晶体管在负载阶段的持续时间内被致动以产生上升的输出电压。 响应于第二软启动电路，在脉冲驱动阶段期间，整流晶体管进一步被重新启动以产生升压的输出电压。 耦合在整流晶体管的第一导电端子和体电极端子之间的第一晶体管被致动，并且耦合在整流晶体管的主体端子和第二导通端子之间的第二晶体管在负载阶段期间被去激活。 在脉冲驱动阶段期间，第一晶体管被去激活，并且第二晶体管被致动。

公开(公告)号：US20160181988A1

公开(公告)日：2016-06-23

申请号：US15057552

申请日：2016-03-01

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Ru Feng Du ,  Qi Yu Liu

IPC: H03F1/02 ,  H03F3/217 ,  H03F3/21 ,  H03F3/185

CPC classification number: H03F1/3205 ,  H03F1/0205 ,  H03F1/305 ,  H03F3/183 ,  H03F3/185 ,  H03F3/187 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/45179 ,  H03F2200/03 ,  H03F2200/351 ,  H03F2203/21106 ,  H03F2203/45151 ,  H03F2203/45156 ,  H03G3/345 ,  H03G3/348 ,  H04R3/002

Abstract: A class D amplifier receives and amplifies a differential analog signal which is then differentially integrated. Two pulse width modulators generate pulse signals corresponding to the differentially integrated analog signal and two power units generate output pulse signals. The outputs the power units are coupled to input terminals of integrators via a resistor feedback network. An analog output unit converts the pulse signals to an output analog signal. The differential integration circuitry implements a soft transition between mute/un-mute. In mute, the integrator output is fixed. During the soft transition, the PWM outputs change slowly from a fixed 50% duty cycle to a final value to ensure that no pop noise is present in the output as a result of mode change.

公开(公告)号：US09370059B2

公开(公告)日：2016-06-14

申请号：US14454867

申请日：2014-08-08

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Yi Jun Duan ,  Tao Tao Huang

IPC: H05B33/08

CPC classification number: H05B33/0851 ,  H03F3/45215 ,  H03F2200/351 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/0887 ,  Y02B20/341 ,  Y02B20/347

Abstract: A driving apparatus configured to drive a light emitting device includes a driving current source module operable to supply current to the light emitting device via a node during operation. A protection module coupled to the node and the driving current source module selectively injects current to the node during operation. The driving current source module is controlled based on a detection result of a voltage on the node.

Abstract translation: 配置为驱动发光装置的驱动装置包括可操作以在操作期间经由节点向发光装置提供电流的驱动电流源模块。 耦合到节点的保护模块和驱动电流源模块在操作期间选择性地向节点注入电流。 基于节点上的电压的检测结果来控制驱动电流源模块。

公开(公告)号：US09366701B2

公开(公告)日：2016-06-14

申请号：US13648412

申请日：2012-10-10

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Yijun Duan

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G01R19/12 ,  G01R19/165

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

Abstract translation: 双向电压微分电路包括启动电路，感测电路和耦合到逻辑电路的输出电路。 启动电路用于在电路通电时启动感测电路，此后加速感测电路的响应。 感测电路感测施加到输入节点的输入电压的变化。 响应于由感测电路感测的电压变化，输出电路在第一或第二输出节点处产生状态改变。 逻辑电路接收输出节点的状态并产生逻辑输出信号以指示在输入电压中检测到的变化的发生。 电压感测电路可操作以感测输入电压的变化，而不管电压是上升还是下降，而不考虑输入电压的DC值。

公开(公告)号：US20160142024A1

公开(公告)日：2016-05-19

申请号：US15002589

申请日：2016-01-21

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Ru Feng Du ,  Qi Yu Liu

IPC: H03F1/52 ,  H03F3/217 ,  H03F3/21 ,  H03F3/185

CPC classification number: H03F1/523 ,  H03F3/183 ,  H03F3/185 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/45475 ,  H03F2200/03 ,  H03F2200/462 ,  H03F2200/78 ,  H03F2203/45512 ,  H03F2203/45528 ,  H03F2203/45594

Abstract: A class-D audio amplifier incorporates an overcurrent protection scheme implementing two overcurrent thresholds to avoid a dynamic impedance drop. When output current reaches the first threshold as a result of an impedance drop across the speaker, the overcurrent protection circuitry limits the output current to the value of the first threshold, but does not shut down the circuit. The second threshold is used to detect an overcurrent condition to shut down the circuit. Current limiting logic of a first channel monitors the overcurrent condition of a second channel and controls the first channel output in response thereto. This permits the second channel output current to reach the second threshold if the circuit is experiencing a short-circuit condition. This scheme also allows the output current to drop below the first threshold if the overcurrent condition of the second channel is caused by an impedance drop across the output speaker.

公开(公告)号：US20160103463A1

公开(公告)日：2016-04-14

申请号：US14531314

申请日：2014-11-03

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Meng Wang ,  Xue Lian Zhou

IPC: G05F3/26

CPC classification number: G05F3/262 ,  H02M1/08 ,  H02M3/158 ,  H02M2001/0032 ,  Y02B70/16

Abstract: An electronic device may include a switching converter configured to convert an input voltage to an output voltage, and being selectively operable in a pulse skipping mode based upon a control signal. The switching converter may include a comparator having a first input configured to receive an error signal, a second input configured to receive a skipping mode reference signal, and an output configured to generate the control signal. A reference generator may be configured to generate the skipping mode reference signal as a function of a difference between the output voltage and the input voltage.

Abstract translation: 电子设备可以包括被配置为将输入电压转换为输出电压并且可以基于控制信号以脉冲跳过模式选择性地操作的开关转换器。 开关转换器可以包括具有被配置为接收错误信号的第一输入的比较器，被配置为接收跳过模式参考信号的第二输入和被配置为产生控制信号的输出。 参考发生器可以被配置为根据输出电压和输入电压之间的差产生跳跃模式参考信号。

公开(公告)号：US09313386B2

公开(公告)日：2016-04-12

申请号：US14336060

申请日：2014-07-21

Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO., LTD.

Inventor： Jing-En Luan

IPC: G02B13/16 ,  H04N5/225 ,  G02B7/02 ,  H01L27/146

CPC classification number: H04N5/2254 ,  G02B7/025 ,  H01L27/14618 ,  H01L27/14625 ,  H01L27/14685 ,  H01L27/14687 ,  H01L2924/0002 ,  Y10T156/1052 ,  H01L2924/00

Abstract: An electronic device may include a substrate, an image sensor IC over the substrate, and a lens assembly above the substrate. The lens assembly may include a spacer above the substrate, a first adhesive layer over the spacer, a lens aligned with the image sensor IC and over the first adhesive layer, a second adhesive layer surrounding a peripheral surface of the lens and the first adhesive layer, and a baffle over the lens and the second adhesive layer.

Abstract translation: 电子设备可以包括衬底，在衬底上的图像传感器IC，以及在衬底上方的透镜组件。 透镜组件可以包括衬底上方的间隔物，间隔物上方的第一粘合剂层，与图像传感器IC对准的透镜并且在第一粘合剂层上方，包围透镜的外周表面的第二粘合剂层和第一粘合剂层 ，以及透镜和第二粘合剂层上的挡板。

公开(公告)号：US20160100468A1

公开(公告)日：2016-04-07

申请号：US14966129

申请日：2015-12-11

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yi Jun Duan

IPC: H05B33/08 ,  G01R19/165

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

公开(公告)号：US09287227B2

公开(公告)日：2016-03-15

申请号：US14547459

申请日：2014-11-19

Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO., LTD.

Inventor： Jing-En Luan

IPC: H01L23/495 ,  H01L21/00 ,  H01R9/00 ,  H01L23/00 ,  H01L23/48 ,  H01L23/433 ,  H01L23/31 ,  H01L21/56

CPC classification number: H01L23/49531 ,  H01L21/56 ,  H01L21/561 ,  H01L21/76885 ,  H01L23/28 ,  H01L23/3107 ,  H01L23/3114 ,  H01L23/3675 ,  H01L23/4334 ,  H01L23/481 ,  H01L23/482 ,  H01L23/49503 ,  H01L23/49513 ,  H01L23/49541 ,  H01L23/49548 ,  H01L23/49555 ,  H01L23/49568 ,  H01L23/49575 ,  H01L23/49805 ,  H01L23/49827 ,  H01L23/49838 ,  H01L24/03 ,  H01L24/05 ,  H01L24/06 ,  H01L24/09 ,  H01L24/16 ,  H01L24/33 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L24/81 ,  H01L24/83 ,  H01L24/85 ,  H01L24/92 ,  H01L2224/03003 ,  H01L2224/03334 ,  H01L2224/0401 ,  H01L2224/04042 ,  H01L2224/04105 ,  H01L2224/0603 ,  H01L2224/06102 ,  H01L2224/06131 ,  H01L2224/06135 ,  H01L2224/06136 ,  H01L2224/06177 ,  H01L2224/09151 ,  H01L2224/12105 ,  H01L2224/16238 ,  H01L2224/32221 ,  H01L2224/32245 ,  H01L2224/45124 ,  H01L2224/45147 ,  H01L2224/48091 ,  H01L2224/48106 ,  H01L2224/48245 ,  H01L2224/48247 ,  H01L2224/49175 ,  H01L2224/73207 ,  H01L2224/73253 ,  H01L2224/73265 ,  H01L2224/81815 ,  H01L2224/85 ,  H01L2224/92127 ,  H01L2224/92242 ,  H01L2224/92247 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2224/05599 ,  H01L2224/81 ,  H01L2924/00012

Abstract: An electronic device may include leads, an IC having first and second bond pads, and an encapsulation material adjacent the leads and the IC so the leads extend to a bottom surface of the encapsulation material defining first contact pads. The electronic device may include bond wires between the first bond pads and corresponding ones of the leads, and conductors extending from corresponding ones of the second bond pads to the bottom surface of the encapsulation material defining second contact pads.

Abstract translation: 电子设备可以包括引线，具有第一和第二接合焊盘的IC以及与引线和IC相邻的封装材料，使得引线延伸到限定第一接触焊盘的封装材料的底表面。 电子器件可以包括在第一接合焊盘和相应的引线之间的接合线，以及从第二接合焊盘中的相应焊盘延伸到限定第二接触焊盘的封装材料的底表面的导体。