Patents Assigned to Analog Devices
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Patent number: 11621539Abstract: This disclosure is directed to, among other things, techniques to quickly replenish a capacitance of a laser diode driver circuit after an optical pulse, which can enable a burst of pulses (more than one pulse), such as to enable pulse coding. An energy reservoir circuit can be coupled to a laser diode driver circuit and to a power supply circuit and configured to store enough energy to fire the RD laser diode driver more than once. The energy reservoir circuit can act as an intermediate interface between the RD laser diode driver and the power supply circuit to better optimize the current requirements of each block.Type: GrantFiled: June 2, 2020Date of Patent: April 4, 2023Assignee: Analog Devices, Inc.Inventors: Shawn S. Kuo, James Lin, Ronald A. Kapusta
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Patent number: 11619607Abstract: Techniques for generating a diagnostic waveform for a sensor are provided. In an example, a control circuit for an electrochemical sensor can include power supply inputs configured to receive a supply voltage, a first signal generator configured to receive control information and to generate a first signal on a first output using the supply voltage and the control information, a second signal generator configured to receive the control information and to provide a second signal on a second output, using the supply voltage and the control information. An output voltage between the first output and the second output, in a diagnostic mode of operation of the control circuit, can include a periodic signal having a peak-to-peak voltage greater than the supply voltage.Type: GrantFiled: July 6, 2020Date of Patent: April 4, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Shurong Gu, Hanqing Wang, GuangYang Qu, Dennis A. Dempsey
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Patent number: 11616442Abstract: A switching power converter circuit comprises a single inductive circuit element; a common control loop circuit coupled to a circuit input and the inductive circuit element and including switching circuit elements to charge the inductive circuit element using energy provided at the circuit input; at least one current sensing circuit configured to sense inductor current of the inductive circuit element; one or more output control loop circuits that each include switching circuit elements activated to generate an output voltage; and one or more pulse width modulation (PWM) circuits configured to generate a PWM control signal to activate the switching circuit elements of the output control loop circuits and to change a peak voltage of the PWM control signal of the one or more PWM circuits according to the inductor current.Type: GrantFiled: May 19, 2021Date of Patent: March 28, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Danzhu Lu, Langyuan Wang
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Patent number: 11614541Abstract: This disclosure describes techniques for operating a lidar device. The techniques include emitting light resulting in a plurality of non-parallel laser beam waves; directing the plurality of non-parallel laser beam waves towards a laser beam scanner; reflecting the non-parallel plurality of beam waves by the laser beam scanner towards a collimator device; collimating, with the collimator device, the plurality of non-parallel laser beam waves reflected by the laser beam scanner into a corresponding plurality of parallel plane waves; and directing the plurality of plane waves from the collimator device towards a field of interest.Type: GrantFiled: September 13, 2019Date of Patent: March 28, 2023Assignee: Analog Devices, Inc.Inventor: Kemiao Jia
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Patent number: 11614341Abstract: A system includes a magnetic sensor that can store a magnetic state associated with a number of accumulated turns of a magnetic target. The magnetic sensor may work in conjunction with a magnetic target. The magnetic target may produce a magnetic field that, at some positions, drops below a magnetic window of the magnetic sensor. The magnetic target may produce a magnetic field that is within the magnetic window when needed to update the magnetic state of the sensor to keep track of the accumulated turns of the magnetic target. The magnetic sensor may be initialized with one or more domain walls.Type: GrantFiled: June 14, 2018Date of Patent: March 28, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Jochen Schmitt, Enda Joseph Nicholl
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Patent number: 11616027Abstract: An integrated circuit package can contain a semiconductor die and provide electrical connections between the semiconductor die and additional electronic components. The integrated circuit package can reduce stress placed on the semiconductor die due to movement of the integrated circuit package due to, for example, temperature changes and/or moisture levels. The integrated circuit package can at least partially mechanically isolate the semiconductor die from the integrated circuit package.Type: GrantFiled: November 18, 2020Date of Patent: March 28, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Ramji Sitaraman Lakshmanan, Bernard Stenson, Padraig Liam Fitzgerald, Oliver Kierse, Michael James Twohig, Michael John Flynn, Laurence Brendan O'Sullivan
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Patent number: 11608109Abstract: Systems and methods for detecting magnetic turn counter errors with redundancy are provided. In one aspect, a magnetic field turn sensor system includes a magnetic field angle sensor having a sine bridge and a cosine bridge and first to third comparators configured to compare the outputs from the sine and cosine bridges. The system further includes a processor configured to receive outputs from each of the first to third comparators, determine that a combination of the outputs from the first to third comparators corresponds to an invalid state, and indicate a fault in response to determining that the combination of the outputs from the first to third comparators corresponds to the invalid state.Type: GrantFiled: August 12, 2020Date of Patent: March 21, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Jeremy Richard Gorbold, Gavin Patrick Cosgrave
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Patent number: 11611211Abstract: A system having a device for conducting an electrostatic discharge (ESD) current from a designated pin node. The system includes first and second pin nodes, and a switching device having a first switching threshold. The switching device includes a first, terminal coupled to a reference node, and a second terminal, coupled to the first pin node to actuate the switching device to conduct ESD current from the first pin node responsive to a voltage between the first pin node and the reference node exceeding the first switching threshold. The switching device further includes a third terminal, coupled to the second pin node, to actuate the switching device to conduct ESD current from the first pin node responsive to a voltage between the first pin node and the second pin node exceeding a second switching threshold.Type: GrantFiled: April 19, 2021Date of Patent: March 21, 2023Assignee: Analog Devices, Inc.Inventor: Michael Amato
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Patent number: 11611273Abstract: Embodiments of the present disclosure describe frequency detection techniques for detecting power irregularities. These irregularities may include variations or abnormalities in switched-mode power supply circuit switching behavior, power spikes, and/or output oscillations. The frequency detection techniques may compare different frequency components of the power signal to detect irregularities.Type: GrantFiled: June 8, 2021Date of Patent: March 21, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Jie He, Tao Lin, Langyuan Wang
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Patent number: 11609207Abstract: Electrochemical sensors can include at least two electrodes, over which an electrolyte is formed. The electrodes can be isolated from one another in order for reduction/oxidation reactions to occur at the electrodes and for an electric current to flow therebetween. The present disclosure describes the use of a barrier in the electrochemical sensor that is configured to isolate electrodes from one another for the purpose of preventing electrode shorting. Additionally, the physical structure of the barrier can also act as a stencil for shaping the electrodes.Type: GrantFiled: March 31, 2020Date of Patent: March 21, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Donal McAuliffe, Rizwan Gill, Alfonso Berduque, Shane Geary, Raymond J. Speer
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Publication number: 20230079001Abstract: A sensor assembly for sensing an analyte in a sample matrix comprises an electrode assembly comprising a set of at least one test electrode and may also comprise one or more control electrodes and/or an applicator assembly. The electrode assembly is configured or configurable to define one or more active test electrodes of the set of one or more test electrodes, and at least one of the electrode assembly and the applicator assembly is or are configured or configurable to adjust a quantity of the analyte provided to the active electrode(s), per unit time, for said interaction based at least in part on an analyte characteristic. Alternatively or additionally, the electrode assembly is configured and arranged in a flow path such that the amounts of sample matrix provided to the test electrode(s) and control electrode(s) of the electrode assembly are substantially equal.Type: ApplicationFiled: September 6, 2022Publication date: March 16, 2023Applicant: Analog Devices International Unlimited CompanyInventors: Christophe ANTOINE, Helen BERNEY, Youri V. PONOMAREV, Joyce WU
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Publication number: 20230083839Abstract: Micro-isolators exhibiting enhanced isolation breakdown voltage are described. The micro-isolators may include an electrically floating ring surrounding one of the isolator elements of the micro-isolator. The isolator elements may be capacitor plates or coils. The electrically floating ring surrounding one of the isolator elements may reduce the electric field at the outer edge of the isolator element, thereby enhancing the isolation breakdown voltage.Type: ApplicationFiled: September 14, 2022Publication date: March 16, 2023Applicant: Analog Devices International Unlimited CompanyInventors: Sombel Diaham, Paul Lambkin, Bernard Patrick Stenson, Patrick M. McGuinness, Laurence B. O'Sullivan, Stephen O'Brien
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Patent number: 11604229Abstract: Techniques for determining a state of health of an energy storage device that utilize a capacitor gain amplifier to provide an AC gain and block the DC voltage. An input capacitor can couple between an input excitation signal generator circuit and the amplifier's inverting input terminal, and a feedback capacitor can couple between the amplifier's inverting input terminal and the amplifier's output. A switch can be used to reset the feedback capacitor periodically to prevent the amplifier's output from becoming saturated from a leakage current at the inverting input terminal of the amplifier.Type: GrantFiled: August 13, 2021Date of Patent: March 14, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Damien J. McCartney, Hongxing Li
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Patent number: 11604283Abstract: The present disclosure relates to a light source system suitable for use in a time of flight camera. The light source system includes a light source, such as a laser, and a driver arranged to supply a drive current to the light source to turn the light source on to emit light. The driver includes a capacitor to store energy and then discharge to generate the drive current, and the driver is integrated into a semiconductor die on which the light source is mounted. Consequently, the driver includes within it the source of energy for the drive current and the light source and driver are very close together, meaning that the light source may be turned on and off very quickly with a relatively large drive current, in order to output a high optical power, short duration light pulse.Type: GrantFiled: February 3, 2020Date of Patent: March 14, 2023Assignee: Analog Devices International Unlimited CompanyInventors: David Neil, Jonathan Ephraim David Hurwitz, George Redfield Spalding, Jr.
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Patent number: 11604084Abstract: A sensor package is disclosed. The sensor package can include a housing that at least partially defines a flow channel. The sensor package can also include an electrically conductive spacer that is disposed on a surface of the housing in the flow channel. The sensor package can further include a sensor die that is disposed in and exposed to the flow channel. The sensor die electrically attached to the spacer such that the sensor die is elevated relative to the surface of the housing.Type: GrantFiled: April 15, 2021Date of Patent: March 14, 2023Assignee: ANALOG DEVICES, INC.Inventors: David Frank Bolognia, Jiawen Bai
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Publication number: 20230069891Abstract: Front-end circuitry is difficult to design for high sample rate, wide bandwidth receivers with high performance requirements on noise and linearity. One exemplary front-end circuitry is integrated on-chip with the RF ADC in a receiver, and the circuitry implements ESD protection, attenuation, and gain. The circuitry includes a multi-tap filter with LC circuits, and the filter implements a highly linear filter. Advantageously, the capacitors in the LC circuits are also used for ESD protection. Additionally, tunable attenuator cells are implemented across the multi-tap filter to provide a wide range of variable attenuation. The circuitry can further include a fixed or variable gain stage at the output. The resulting circuitry offers variable gain and attenuation while meeting bandwidth, noise, and linearity requirements.Type: ApplicationFiled: September 6, 2022Publication date: March 9, 2023Applicant: Analog Devices International Unlimited CompanyInventors: Athanasios RAMKAJ, Gabriele MANGANARO, Filip TAVERNIER, Siddharth DEVARAJAN
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Publication number: 20230070085Abstract: There is disclosed herein programmable delay lines and control methods having glitch suppression. In particular, the programmable delay lines may include latches that are triggered based on a trigger event of an input signal (which is often an edge of the input signal). The programmable delay lines may include one or more latches coupled between capacitor and transistor subassemblies and the latches, where the latches cause a delay between the time the trigger event arrives at the capacitor and transistor subassemblies and the latches. The delay can prevent the latches from updating at the same time that the edge of the input signal arrives at the capacitor and transistor subassemblies, which can suppress glitches that can causes errors in operation.Type: ApplicationFiled: November 14, 2022Publication date: March 9, 2023Applicant: Analog Devices, Inc.Inventor: John KENNEY
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Patent number: 11601049Abstract: A multi-phase hybrid DC-DC converter using a switched-capacitor technique is described. The multi-phase hybrid converter can reduce the volt-seconds on the inductors of the converter, which can allow for a reduction in the size of the inductors. In addition, the multi-phase hybrid converter can utilize inductors as current sources to charge and discharge the flying capacitors, which can reduce the size of the mid capacitor and increase solution density. Because charging and discharging are performed by inductors, the multi-phase hybrid converter can eliminate the capacitor-to-capacitor charge transfer. As such, the multi-phase hybrid converter does not need high capacitance to achieve high efficiency operation, which can further increase solution density.Type: GrantFiled: July 14, 2021Date of Patent: March 7, 2023Assignee: Analog Devices, Inc.Inventors: Owen Jong, Ya Liu, Yingyi Yan, Jindong Zhang
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Patent number: 11600966Abstract: The present disclosure relates to a light source system suitable for use in a time of flight camera. The light source system includes a light source, such as a laser, and a driver arranged to supply a drive current to the light source to turn the light source on to emit light. The driver includes two transistors coupled to the light source in series, such that when both transistors are turned on, a drive circuit is completed, current flows and the light source turns on. A very short pulse of light emission may be achieved efficiently by switching one of the transistors to the on-state to complete the drive circuit and a short time later turning off the other transistor in order to break the drive circuit. In this way, a pulse of light in the order of less than 1 nanosecond or less than 500 picoseconds may be achieved.Type: GrantFiled: October 26, 2020Date of Patent: March 7, 2023Assignee: Analog Devices International Unlimited CompanyInventors: Jonathan Ephraim David Hurwitz, David Neil
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Patent number: 11599697Abstract: Various examples are directed to systems and methods for evaluating electronic components. A server computing device may provide an evaluation user interface to a user application executing at a user computing device. The server computing device may receive an indication of an electronic component for evaluation from the user application and via the user interface and access a configuration data set for the electronic component. The configuration data set may comprise argument data describing a set of arguments for the electronic component; binding data describing a relationship between a first argument of the set of arguments and a first model input parameter; and simulator data describing a model for the electronic component. The server computing device may also evaluate the electronic component based at least in part on the configuration data set.Type: GrantFiled: March 30, 2017Date of Patent: March 7, 2023Assignee: Analog Devices, Inc.Inventors: Jason Cockrell, Thomas M. MacLeod
