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公开(公告)号：US20220069626A1
公开(公告)日：2022-03-03
申请号：US17008238
申请日：2020-08-31
Inventor： Tomas Teply
IPC: H02J50/12 , H02J7/02 , H02J50/70 , H02J50/80 , H02J50/00 , H01F38/14 , H01F27/28 , H01F27/36 , H02J50/40 , H04R1/10
Abstract: A system and method for wireless charging a wireless earbud. The wireless earbud having a body that includes a passive magnetic shield and a coil. The coil is wound around a portion of the body comprising the passive magnetic shielding. The wireless earbud receiving wireless energy in response to the placement of the body within an electromagnetic field, which results in the charging of a battery of the wireless earbud.
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公开(公告)号：US11082018B2
公开(公告)日：2021-08-03
申请号：US16786182
申请日：2020-02-10
Inventor： Sandor Petenyi
Abstract: A MOSFET has a current conduction path between source and drain terminals. A gate terminal of the MOSFET receives an input signal to facilitate current conduction in the current conduction path as a result of a gate-to-source voltage reaching a threshold voltage. A body terminal of the MOSFET is coupled to body voltage control circuitry that is sensitive to the voltage at the gate terminal of the MOSFET. The body voltage control circuitry responds to a reduction in the voltage at the gate terminal of the MOSFET by increasing the body voltage of the MOSFET at the body terminal of the MOSFET. As a result, there is reduction in the threshold voltage. The circuit configuration is applicable to amplifier circuits, comparator circuits and current mirror circuits.
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公开(公告)号：US11031672B2
公开(公告)日：2021-06-08
申请号：US16521757
申请日：2019-07-25
Inventor： Petr Ourednik , Yvon Gourdou
Abstract: An antenna includes two planar coils that are mechanically disposed face to face and electrically connected in series. The antenna is mounted to a disposable consumer product (for example, a cartridge for use with an electronic cigarette). The antenna is configured to support near field communications with a reader circuit for purposes of authenticating use of the disposable consumer product.
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公开(公告)号：US11005483B2
公开(公告)日：2021-05-11
申请号：US16987833
申请日：2020-08-07
Inventor： Sandor Petenyi
Abstract: A circuit includes a current controlled oscillator (CCO), and a charge pump circuit boosting a supply voltage to produce a charge pump output voltage at a charge pump output node in response to output from the CCO. A current sensing circuit includes a first resistor coupled between the charge pump output node and an output node, a first transistor having a first conduction terminal coupled to the charge pump output node through a second resistor, and a second conduction terminal coupled to an input of the CCO. A second transistor has a first conduction terminal coupled to the output node, a second conduction terminal coupled to a reference current source, and a control terminal coupled to the control terminal of the first transistor and to the second conduction terminal of the second transistor.
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公开(公告)号：US20200272184A1
公开(公告)日：2020-08-27
申请号：US16285330
申请日：2019-02-26
Inventor： Sandor PETENYI
Abstract: An amplifier stage of an LDO regulator circuit includes an amplifier stage that generates a drive signal in response to a first voltage difference an output voltage of the LDO regulator circuit and a reference voltage. A drive stage having a quiescent current consumption is configured to generate a control signal in response to the drive signal. The control signal is applied to the control terminal of a power transistor. A dropout detector senses whether the LDO regulator circuit is operating in closed loop regulation mode or in open loop dropout mode by sensing a second difference in voltage between the drive signal and the control signal. A quiescent current limiter circuit responds to the sensed second difference by controlling the quiescent current consumption of the drive stage, and in particular limiting current consumption when the LDO regulator circuit is operating in the open loop dropout mode.
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Patent Agency Ranking
公开(公告)号：US10476414B2
公开(公告)日：2019-11-12
申请号：US15377911
申请日：2016-12-13
Inventor： Jiri Ryba , Gianluigi Forte , Andrea Spampinato
Abstract: A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.
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公开(公告)号：US20190310736A1
公开(公告)日：2019-10-10
申请号：US15948147
申请日：2018-04-09
Inventor： Milan ANDRLE , Martin HAVLASEK , Martin FUCIK
Abstract: Disclosed is a method for testing touch screen displays during manufacture. A touch screen controller (TSC) is packaged, and the analog channels of the TSC are characterized, with resulting data being stored for later use. The TSC is programmed, and the touch screen display and TSC are packaged together. The touch screen display is tested using firmware in the TSC, enabling calculation of the inherent capacitances between force and sense lines of the touch screen display when connected to the TSC during operation. The testing involves, for each force and sense line pair, measuring an output signal generated by a receive channel of the TSC coupled to the sense line of that pair. Based upon the data gathered during characterization, and the signals measured during testing, the capacity of the touch screen display is then calculated.
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公开(公告)号：US20190272155A1
公开(公告)日：2019-09-05
申请号：US16281040
申请日：2019-02-20
Inventor： Mahesh Chowdhary , Miroslav Batek , Marian Louda
Abstract: The disclosure describes methods and apparatus for quickly prototyping of a solution developed using one or more sensing devices (e.g., sensors), functional blocks, algorithm libraries, and customized logic. The methods produce firmware executable by a processor (e.g., a microcontroller) on an embedded device such as a development board, expansion board, or the like. By performing these methods on the apparatus described, a user is able to create a function prototype without having deep knowledge of the particular sensing device or any particular programing language. Prototypes developed as described herein enable the user to rapidly test ideas and develop sensing device proofs-of-concept. The solutions produced by the methods and apparatus improve the functioning of the sensor being prototyped and the operation of the embedded device where the sensor is integrated.
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公开(公告)号：US20190214910A1
公开(公告)日：2019-07-11
申请号：US16222557
申请日：2018-12-17
Inventor： Matthieu Thomas , Michele Suraci , Massimo Mazzucco
IPC: H02M3/158
CPC classification number: H02M3/1582 , H02M1/08 , H02M3/1584 , H02M3/1588 , H02M2001/0006 , H02M2001/0009
Abstract: A DC-DC converter circuit including at least: a first step down converter having a first pair of switching devices in a half bridge configuration. A second step down converter includes a second pair of switching devices in a half bridge configuration. The first and second step down converters are connected in parallel to an output node connected to an output coil and receive command signals. A feedback loop includes a synchronization module receiving the gate control signals of high side switching devices and adjusts as a function of the gate control signals a delay in a signal path from the command signal to each gate control signal of the high side switching device to synchronize the gate control signals.
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公开(公告)号：US20170373619A1
公开(公告)日：2017-12-28
申请号：US15377911
申请日：2016-12-13
Inventor： Jiri Ryba , Gianluigi Forte , Andrea Spampinato
IPC: H02P6/18
Abstract: A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.
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