公开(公告)号：US10326039B2

公开(公告)日：2019-06-18

申请号：US16169522

申请日：2018-10-24

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

Inventor： Jing-En Luan

IPC: G01S17/02 ,  H01L23/00 ,  H01L31/173 ,  G01S17/08 ,  G01S7/481 ,  H01L31/0203 ,  H01L31/0232

Abstract: A proximity detector device may include a first interconnect layer including a first dielectric layer, and first electrically conductive traces carried thereby, an IC layer above the first interconnect layer and having an image sensor IC, and a light source IC laterally spaced from the image sensor IC. The proximity detector device may include a second interconnect layer above the IC layer and having a second dielectric layer, and second electrically conductive traces carried thereby. The second interconnect layer may have first and second openings therein respectively aligned with the image sensor IC and the light source IC. Each of the image sensor IC and the light source IC may be coupled to the first and second electrically conductive traces. The proximity detector device may include a lens assembly above the second interconnect layer and having first and second lenses respectively aligned with the first and second openings.

公开(公告)号：US20190123694A1

公开(公告)日：2019-04-25

申请号：US16222281

申请日：2018-12-17

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

Inventor： Ru Feng DU ,  Qi Yu LIU

IPC: H03F1/32 ,  H03G3/34 ,  H03F1/30 ,  H03F3/45 ,  H04R3/00 ,  H03F3/183 ,  H03F3/217 ,  H03F1/02 ,  H03F3/185 ,  H03F3/187 ,  H03F3/21

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：US20190058076A1

公开(公告)日：2019-02-21

申请号：US16169522

申请日：2018-10-24

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

Inventor： Jing-En Luan

IPC: H01L31/173 ,  H01L31/0232 ,  G01S17/02 ,  H01L31/0203 ,  G01S17/08 ,  H01L23/00 ,  G01S7/481

Abstract: A proximity detector device may include a first interconnect layer including a first dielectric layer, and first electrically conductive traces carried thereby, an IC layer above the first interconnect layer and having an image sensor IC, and a light source IC laterally spaced from the image sensor IC. The proximity detector device may include a second interconnect layer above the IC layer and having a second dielectric layer, and second electrically conductive traces carried thereby. The second interconnect layer may have first and second openings therein respectively aligned with the image sensor IC and the light source IC. Each of the image sensor IC and the light source IC may be coupled to the first and second electrically conductive traces. The proximity detector device may include a lens assembly above the second interconnect layer and having first and second lenses respectively aligned with the first and second openings.

公开(公告)号：US10212775B2

公开(公告)日：2019-02-19

申请号：US15956598

申请日：2018-04-18

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

Inventor： Tao Tao Huang ,  Yi Jun Duan

IPC: H05B33/08 ,  H03F3/45

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.

公开(公告)号：US10186193B2

公开(公告)日：2019-01-22

申请号：US15585677

申请日：2017-05-03

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

Inventor： Meng Wang ,  Tao Tao Huang

IPC: H03K3/00 ,  G09G3/3225 ,  H02M3/158 ,  G09G3/20 ,  H03K17/687 ,  H03K17/0412 ,  G09G3/36 ,  H03K5/12 ,  G09G3/3208

Abstract: A low side driver includes a first transistor coupled in series with a second transistor at a low side voltage node for a load. A capacitance is configured to store a voltage and a voltage buffer circuit has an input coupled to receive the voltage stored by the capacitance and an output coupled to drive a control node of the second transistor with the stored voltage. A current source supplies current through a switch to the capacitance and the input of the voltage buffer circuit. The switch is configured to be actuated by an oscillating enable signal so as to cyclically source current from the current source to the capacitance and cause a stepped increase in the stored voltage which is applied by the buffer circuit to the control node of the second transistor.

公开(公告)号：US20180246553A1

公开(公告)日：2018-08-30

申请号：US15966808

申请日：2018-04-30

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

Inventor： Andy LIN ,  Johnny YOON ,  Danny SHENG

IPC: G06F1/26 ,  G09G3/20

CPC classification number: G06F1/266 ,  G09G3/2092 ,  G09G2330/028 ,  G09G2330/04

Abstract: An embodiment is a circuit for use with a display device, the circuit including: a first input node configured to be operatively coupled to a first port of a data source device that provides the display device with data, to receive a first direct voltage used for a real-time display of the data on the display device; and at least one output node, configured to operatively provide the display device with at least one output voltage generated based on the first direct voltage, wherein the first port is isolated from a data port used to transmit the data.

公开(公告)号：US09946282B2

公开(公告)日：2018-04-17

申请号：US15244289

申请日：2016-08-23

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

Inventor： Yong Feng Liu

IPC: G05F1/00 ,  G05F1/575 ,  G05F1/565 ,  G05F1/59 ,  G05F3/30

CPC classification number: G05F1/575 ,  G05F1/565 ,  G05F1/59 ,  G05F3/30

Abstract: A voltage regulator includes a feedback regulation loop and a drive transistor configured to source current to a regulated output. A transient recovery circuit is coupled to the voltage regulator circuit and includes a first transistor coupled to source current into a control terminal of the drive transistor, wherein the source current is in addition to current sourced in response to operation of the feedback regulation loop. The first transistor is selectively actuated in response to a drop in voltage at the regulated output. The transient recovery circuit further includes a second transistor coupled to sink current from the regulated output. The sink current has a first non-zero magnitude in the quiescent operating mode of the regulator circuit. In response to an increase in voltage at the regulated output, the operation of the second transistor is modified to increase the sink current to a second, greater, non-zero magnitude.

公开(公告)号：US20180011506A1

公开(公告)日：2018-01-11

申请号：US15679274

申请日：2017-08-17

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

Inventor： Ni Zeng

IPC: G05F1/575

Abstract: A low dropout amplifier may include an error amplifier having first and second inputs coupled to a reference signal and a feedback signal, respectively. The error amplifier may be configured to generate first and second error signals at first and second outputs, respectively, with the first and second error signals based upon a difference between the reference signal and the feedback signal. A sink stage may be coupled to the first output and configured to generate a sink current based upon the first error signal. A source stage may be coupled to the second output and configured to generate a source current based upon the second error signal. An output node may be coupled to receive the sink and source currents.

公开(公告)号：US09859196B2

公开(公告)日：2018-01-02

申请号：US15251127

申请日：2016-08-30

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

Inventor： Jing-En Luan

IPC: H01L23/495 ,  H01L23/00 ,  H01L23/48 ,  H01L23/433 ,  H01L23/367 ,  H01L23/498 ,  H01L21/768 ,  H01L23/482 ,  H01L23/28 ,  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.

公开(公告)号：US09857395B2

公开(公告)日：2018-01-02

申请号：US14955207

申请日：2015-12-01

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

Inventor： Meng Wang ,  Xue Lian Zhou

IPC: G01R15/18 ,  G01R15/16 ,  G01R19/165

CPC classification number: G01R15/18 ,  G01R15/16 ,  G01R19/16538

Abstract: Current flowing through an inductor in response to a pulse width modulation (PWM) control signal is sensed to generate a sensed current. The sensed current is processed over one or more PWM cycles of the PWM control signal to generate an output signal indicative of average inductor current. This processing may include charging and discharging a capacitor at different rates dependent on the sense current, with the detection of capacitor discharge triggering a sampling of a voltage dependent on the sensed current that is indicative of average inductor current. The processing may include using the sensed to current to generate a first charge voltage associated with minimum inductor current and a second charge voltage associated with maximum inductor current, and then averaging the first and second charge voltages to generate an output signal indicative of average inductor current.