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公开(公告)号：US20150381125A1
公开(公告)日：2015-12-31
申请号：US14613455
申请日：2015-02-04
Inventor： Kelvin Jian Wen , Mei Yang , Zheng Hua Song , Xian Xiong , Cristiano Meroni
CPC classification number: H03F3/187 , H03F3/45475 , H03F3/45941 , H03F2200/03 , H03F2200/441 , H03F2203/45138 , H03F2203/45418 , H03F2203/45424 , H03F2203/45528 , H03F2203/45541
Abstract: A power amplifier includes a clamping circuit configured to provide a clamped voltage from a power supply; an amplifier pair having first inputs coupled to the clamping circuit, second inputs and an output for providing an amplified signal; and a biasing circuit coupled between the clamping circuit and the second inputs. The biasing circuit is configured to adjust input bias voltages of the amplifier pair such that the bias voltage of the output of the amplifier pair varies proportionally to a change of the power supply.
Abstract translation: 功率放大器包括被配置为提供来自电源的钳位电压的钳位电路; 放大器对，其具有耦合到所述钳位电路的第一输入，第二输入和用于提供放大信号的输出; 以及耦合在所述钳位电路和所述第二输入之间的偏置电路。 偏置电路被配置为调整放大器对的输入偏置电压，使得放大器对的输出的偏置电压与电源的变化成比例地变化。
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公开(公告)号：US20150228359A1
公开(公告)日：2015-08-13
申请号：US14695110
申请日：2015-04-24
Inventor： Luca Molinari , Hong Wei Wang
Abstract: A failure diagnosis circuit includes a multiplexer and a controller. The multiplexer receives address signals, and selectively outputs one of the address signals to an addressable module in response to a selecting signal. The controller generates a first one of address signals and the selecting signal. A built-in self-test circuit generates the second address signal. The addressable module includes addressable components responsive to the address signal. The controller processes the output of the addressable module responsive to the address signal to make a failure diagnosis. The built-in self-test circuit performs signature analysis on the read out output of the addressable module.
Abstract translation: 故障诊断电路包括多路复用器和控制器。 多路复用器接收地址信号，并且响应于选择信号选择性地将一个地址信号输出到可寻址模块。 控制器产生第一个地址信号和选择信号。 内置的自检电路产生第二个地址信号。 可寻址模块包括响应于地址信号的可寻址组件。 控制器响应于地址信号处理可寻址模块的输出以进行故障诊断。 内置的自检电路对可寻址模块的读出输出执行签名分析。
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公开(公告)号：US09099978B2
公开(公告)日：2015-08-04
申请号：US13692789
申请日：2012-12-03
Inventor： XiangSheng Li , Cristiano Meroni , Mei Yang , XianFeng Xiong
CPC classification number: H03G3/348 , H03F1/52 , H03F3/183 , H03F3/21 , H03F2200/321 , H03F2200/375 , H03F2200/471 , H03F2200/78 , H03G11/00 , H04R1/00 , H04R3/007 , H04R2201/028 , H04R2499/13
Abstract: A method of operating a speaker system including a speaker coupled to an amplifier, and a dedicated digital speaker protection circuit includes turning on the amplifier in a mute mode, after a first delay period, issuing a play command to the amplifier to place the amplifier in a play mode, but without an input signal during a second delay period, and performing a speaker offset detection during the second delay period, wherein, if there is an offset, then the amplifier is forced back into the mute mode, and if there is no offset, then the amplifier is allowed to continue to operate in the play mode. The method also includes issuing a speaker protection control signal or command if an offset is detected.
Abstract translation: 一种操作包括耦合到放大器的扬声器的扬声器系统和专用数字扬声器保护电路的方法包括：在第一延迟周期之后，以静音模式接通放大器，向放大器发出放大指令以放大放大器 播放模式，但是在第二延迟时段期间没有输入信号，并且在第二延迟周期期间执行扬声器偏移检测，其中，如果存在偏移，则放大器被强制回到静音模式，并且如果存在 无偏移，则允许放大器在播放模式下继续工作。 如果检测到偏移，该方法还包括发出扬声器保护控制信号或命令。
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公开(公告)号：US09083872B2
公开(公告)日：2015-07-14
申请号：US14032607
申请日：2013-09-20
Applicant: STMICROELECTRONICS (SHENZHEN) R&D CO., LTD.
Inventor： Jing-En Luan
IPC: H04N5/225
CPC classification number: H04N5/2254 , H04N5/2257
Abstract: An imaging device may include a housing, an image sensor IC in the housing, a lens adjacent the image sensor IC, and a cap over the lens and having an adhesive filling opening therein. The cap, the housing, and the lens may define an adhesive receiving cavity therein and in communication with the adhesive filling opening. The imaging device may also include adhesive material within the adhesive receiving cavity touching the cap, the housing, and the lens.
Abstract translation: 成像装置可以包括壳体，壳体中的图像传感器IC，与图像传感器IC相邻的透镜，以及透镜上方的盖，并且在其中具有粘合剂填充开口。 盖，壳体和透镜可以在其中限定粘合剂容纳腔并与粘合剂填充开口连通。 成像装置还可以包括粘合剂容纳腔内的接触盖，壳体和透镜的粘合剂材料。
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145.发明授权Operational transconductance amplifier with increased current sinking capability 有权具有增加电流吸收能力的工作跨导放大器公开(公告)号：US09030258B2
公开(公告)日：2015-05-12
申请号：US13875766
申请日：2013-05-02
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Yi Jun Duan
CPC classification number: H03F3/45179 , H02H9/043 , H03F3/45071 , H03F3/45183 , H03F2200/471 , H03F2203/45022 , H03F2203/45526 , H03F2203/45674
Abstract: An amplifier circuit includes an input terminal and an output terminal. A current sinking transistor includes a first conduction terminal coupled to the output terminal and a second conduction terminal coupled to a reference supply node. A voltage sensing circuit has a first input coupled to the input terminal and a second input coupled to the output terminal. An output of the voltage sensing circuit is coupled to the control terminal of the current sinking transistor. The voltage sensing circuit functions to sense a rise in the voltage at the output terminal which exceeds the voltage at the input terminal, and respond thereto by activating the current sinking transistor.
Abstract translation: 放大器电路包括输入端子和输出端子。 电流吸收晶体管包括耦合到输出端子的第一导电端子和耦合到参考电源节点的第二导电端子。 电压感测电路具有耦合到输入端的第一输入和耦合到输出端的第二输入。 电压感测电路的输出耦合到电流吸收晶体管的控制端。 电压感测电路用于感测输出端子处的电压上升超过输入端子处的电压，并通过激活电流吸收晶体管对其进行响应。
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Patent Agency Ranking
146.发明授权System and method for controlling DCM-CCM oscillation in a current-controlled switching mode power supply converter 有权用于控制电流控制开关模式电源转换器中DCM-CCM振荡的系统和方法公开(公告)号：US09024597B2
公开(公告)日：2015-05-05
申请号：US13658995
申请日：2012-10-24
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Hai Bo Zhang , Jin Li , Yong Jun Wu
CPC classification number: H02M3/158 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
Abstract: A constant-frequency current-mode-controlled boost converter circuit provides slope compensation of an inductor current, reduces reverse inductor current in light output load conditions, and reduces oscillation between a discontinuous current mode and a continuous current mode by enabling or disabling an inductor current threshold. The constant-frequency current-mode-controlled boost converter circuit is efficient and stable in light, medium, and heavy output load conditions.
Abstract translation: 恒流电流模式控制的升压转换器电路提供电感电流的斜率补偿，减少光输出负载条件下的反向电感电流，并通过启用或禁用电感电流减少不连续电流模式和连续电流模式之间的振荡 阈。 恒流电流模式控制升压转换器电路在轻，中，重输出负载条件下是高效稳定的。
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公开(公告)号：US20150115927A1
公开(公告)日：2015-04-30
申请号：US14521536
申请日：2014-10-23
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd
Inventor： Min Chen , Wen Liu , Hong Xia Li
IPC: G05F5/00
Abstract: A voltage detector operates to detect a system power supply voltage and generate a trigger signal. A control signal generator responds to the trigger signal and generates a control signal. A DC bias generator responds to the control signal by generating a DC bias. The control signal controls the DC bias to have a first value when the power supply voltage is a first voltage and have a second value when the power supply voltage is a second voltage different from the first voltage, wherein the first value is different from the second value. A dynamic DC bias is generated which can not only support a larger voltage scope, but also significantly improves signal to noise ratio. The system power supply detection may concern stop/start operation of an automobile engine.
Abstract translation: 电压检测器用于检测系统电源电压并产生触发信号。 控制信号发生器响应触发信号并产生控制信号。 DC偏置发生器通过产生DC偏压来响应控制信号。 当电源电压为第一电压时，控制信号控制DC偏压具有第一值，当电源电压是与第一电压不同的第二电压时，控制信号具有第二值，其中第一值不同于第二电压 值。 产生动态直流偏置，不仅可以支持更大的电压范围，而且可以显着提高信噪比。 系统电源检测可能涉及汽车发动机的停止/起动操作。
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公开(公告)号：US20150071464A1
公开(公告)日：2015-03-12
申请号：US14478531
申请日：2014-09-05
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Ru Feng Du , Qi Yu Liu
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.
Abstract translation: D类放大器接收和放大差分模拟信号，然后差分模拟信号被差分地积分。 两个脉冲宽度调制器产生对应于差分集成模拟信号的脉冲信号，两个功率单元产生输出脉冲信号。 功率单元的输出通过电阻反馈网络耦合到积分器的输入端。 模拟输出单元将脉冲信号转换为输出模拟信号。 差分积分电路实现静音/非静音之间的软转换。 静音时，积分器输出是固定的。 在软转换期间，PWM输出从固定的50％占空比缓慢变化到最终值，以确保由于模式更改导致输出中没有弹出噪声。
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公开(公告)号：US20140300393A1
公开(公告)日：2014-10-09
申请号：US14310865
申请日：2014-06-20
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Lin Li
IPC: H03K19/003
CPC classification number: H03K19/00361 , G01R31/2621
Abstract: A high side driver circuit includes a driver stage having an input, an output, a first power terminal and a second power terminal, a transistor having a first power terminal, a second power terminal, and a control terminal coupled to the output of the driver stage, and a switch coupled between the second power terminal of the driver stage and the second power terminal of the transistor.
Abstract translation: 高侧驱动器电路包括具有输入端，输出端，第一电源端子和第二电源端子的驱动级，具有第一电源端子，第二电源端子和耦合到驱动器的输出端的控制端子的晶体管 并且耦合在驱动器级的第二电源端子和晶体管的第二电源端子之间的开关。
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公开(公告)号：US08779804B2
公开(公告)日：2014-07-15
申请号：US13708812
申请日：2012-12-07
Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.
Inventor： Lin Li
IPC: H03K3/00
CPC classification number: H03K19/00361 , G01R31/2621
Abstract: A high side driver circuit includes a driver stage having an input, an output, a first power terminal and a second power terminal, a transistor having a first power terminal, a second power terminal, and a control terminal coupled to the output of the driver stage, and a switch coupled between the second power terminal of the driver stage and the second power terminal of the transistor.
Abstract translation: 高侧驱动器电路包括具有输入端，输出端，第一电源端子和第二电源端子的驱动级，具有第一电源端子，第二电源端子和耦合到驱动器的输出端的控制端子的晶体管 并且耦合在驱动器级的第二电源端子和晶体管的第二电源端子之间的开关。
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