公开(公告)号：US12092665B2

公开(公告)日：2024-09-17

申请号：US17987903

申请日：2022-11-16

申请人： REALTEK SEMICONDUCTOR CORPORATION

发明人： Chun-Yi Kuo

IPC分类号： G01R19/165

CPC分类号： G01R19/16552 ,  G01R19/16571

摘要： A detection result recording and outputting device of an IC is operable to record and output detection results at different speeds respectively. The device includes a sensing circuit, a decision circuit, a storage circuit, and a control circuit. The sensing circuit detects the variation in a characteristic of a target circuit and generates detection results at a first speed. The decision circuit receives the detection results and generates a trigger signal or changes its level when finding that a detection result satisfies a predetermined condition. The control circuit writes the detection result and subsequent (N−1) detection results into the storage circuit at a second speed according to the trigger signal, and then reads out the detection results from the storage circuit at a third speed and outputs them at a fourth speed. The second speed is not higher than the first speed, but higher than the fourth speed.

公开(公告)号：US20240297575A1

公开(公告)日：2024-09-05

申请号：US18593434

申请日：2024-03-01

申请人： Renesas Electronics America Inc.

发明人： Ryan Patrick FORAN ,  Yashovardhan Rao POTLAPALLI

IPC分类号： H02M1/32 ,  G01R19/165 ,  H02M3/158

CPC分类号： H02M1/32 ,  G01R19/16552 ,  H02M3/158

摘要： Systems and methods for over current protection are described. A controller can receive a differential feedback voltage signal from a power stage. The differential feedback voltage signal can be proportional to an inductor current through an inductor in the power stage. The controller can amplify the differential feedback voltage signal to generate a differential threshold that includes an upper bound and a lower bound. The controller can compare the amplified differential feedback voltage signal with the differential threshold. The controller can, based on a result of the comparison of the amplified differential feedback voltage signal with the differential threshold, determine whether to adjust at least one of a modulator on-time and a modulator off-time of a control signal to limit the inductor current, wherein the control signal is for driving the power stage.

公开(公告)号：US11977664B2

公开(公告)日：2024-05-07

申请号：US17455689

申请日：2021-11-19

申请人： NXP USA, Inc.

发明人： Markus Regner ,  Hubert Martin Bode ,  Stefan Doll

IPC分类号： G06F21/75 ,  G01R19/165 ,  G06F21/81 ,  H03K19/17768

CPC分类号： G06F21/755 ,  G01R19/16552 ,  G06F21/81 ,  H03K19/17768

摘要： A System-on-Chip (SoC) includes first and second voltage supply pins configured to receive first and second supply voltages, respectively, a first supply path beginning at the first supply pin, and a supply proportion checker. The first supply path includes a first plurality of voltage supply nodes and a supply switch coupled between adjacent voltage supply nodes, wherein each node is configured to provide a corresponding internal voltage supply to a corresponding portion of the SoC. The supply proportion checker is coupled to receive the corresponding internal voltage supply from each voltage supply node, and configured to determine whether a first internal voltage supply supplied by a first supply node of the first plurality of nodes has a legitimate proportion to a second internal voltage supply supplied by a second supply node of the first plurality of nodes, wherein the legitimacy is checked using only resistors which do not require trimming.

公开(公告)号：US20190207520A1

公开(公告)日：2019-07-04

申请号：US16231538

申请日：2018-12-23

申请人： Daisuke IMADE ,  Naoto ENDO

发明人： Daisuke IMADE ,  Naoto ENDO

IPC分类号： H02M3/335 ,  H05B33/08 ,  H02M1/15 ,  H03K5/24

CPC分类号： H02M3/33507 ,  G01R19/16552 ,  H02M1/15 ,  H02M2001/0009 ,  H02M2001/0045 ,  H02M2001/0048 ,  H03K5/24 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0851

摘要： A power supply device includes a voltage conversion circuit, a current controller and a current controlling circuit. The voltage conversion circuit generates a DC voltage from an AC power source and outputs the DC voltage to a pair of output terminals. The current controller is disposed on a first current path through which an output current flows and controls the current in the first current path. The current controlling circuit drives the current controller so as to reduce a ripple component generated in the output current, based on (i) a voltage at a first potential point set on a path from an output terminal at a high-potential side of the voltage conversion circuit to the current controller in the first current path and (ii) a current detecting voltage indicating the magnitude of the output current.

公开(公告)号：US20180337672A1

公开(公告)日：2018-11-22

申请号：US15871558

申请日：2018-01-15

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Jin-Woo Kim ,  Yong-Joo Song

IPC分类号： H03K17/22 ,  G01R19/165

CPC分类号： H03K17/223 ,  G01R19/16552 ,  G06F1/24 ,  G06F1/26

摘要： A power on/off reset circuit includes a driving circuit, a hysteresis control circuit and a buffering circuit. The driving circuit detects a first level of a power supply voltage during a power-on duration of the power supply voltage, detects a second level of the power supply voltage during a power-off duration of the power supply voltage, and generates a driving signal that is transitioned based on the first level and the second level. The hysteresis control circuit is connected to an output terminal of the driving circuit, is activated or deactivated based on the power supply voltage without a control signal, is activated during one of the power-on duration and the power-off duration, and is deactivated during the other of the power-on duration and the power-off duration. The buffering circuit is connected to the output terminal of the driving circuit, and generates a reset signal based on the driving signal.

公开(公告)号：US20180284828A1

公开(公告)日：2018-10-04

申请号：US15478457

申请日：2017-04-04

申请人： Intel Corporation

发明人： Praveen Mosalikanti ,  Gerhard Schrom ,  Vaughn J. Grossnickle ,  Nasser A. Kurd

IPC分类号： G05F1/625 ,  H03L7/093 ,  H03K5/24 ,  G01R19/165

CPC分类号： G05F1/625 ,  G01R19/16552 ,  H03K5/24 ,  H03L7/06

摘要： Some embodiments include apparatuses and methods of operating such apparatuses. One of the embodiments includes an input node to receive an input voltage, a circuit portion to generate first, second, and third voltages based on the input voltage, a comparator circuit to compare the first voltage with the second voltage to generate a first signal and to compare the first voltage with the third voltage to generate a second signal, and an output circuit to generate an output signal based on the first and second signals.

公开(公告)号：US10073506B2

公开(公告)日：2018-09-11

申请号：US14868566

申请日：2015-09-29

申请人： DELTA ELECTRONICS, INC.

发明人： Jianhong Zeng ,  Ziying Zhou ,  Haoyi Ye ,  Peiqing Hu

IPC分类号： G01R31/20 ,  G01R31/26 ,  G06F1/26 ,  G01R31/40 ,  G06F1/28 ,  G01R19/165

CPC分类号： G06F1/26 ,  G01R19/16552 ,  G01R31/40 ,  G06F1/28

摘要： The present disclosure generally relates to a test method and system thereof. The test method comprises: outputting a test control signal to a test power supply of the circuit under test so as to adjust an input signal of the circuit under test so that a gain range of the circuit under test in an abnormal operating state is the same as that of the circuit under test in a normal operating state when the circuit under test enters into the abnormal operating state. The present disclosure may meet requirements for equipment test without sacrificing the efficiency of circuits in normal operating state or adding complexity circuit.

公开(公告)号：US10060956B2

公开(公告)日：2018-08-28

申请号：US15385217

申请日：2016-12-20

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Gary Lynn Swoboda

IPC分类号： G01R19/165 ,  G01R31/28

CPC分类号： G01R19/16552 ,  G01R31/2851

摘要： An integrated circuit is provided with a voltage sag detector (VSD) within the integrated circuit package. The VSD is coupled to a voltage reference and to the power distribution bus within the integrated circuit. The VSD has an output for indicating when a voltage level on the power distribution bus sags below a voltage level provided by the voltage reference.

公开(公告)号：US20180159324A1

公开(公告)日：2018-06-07

申请号：US15885156

申请日：2018-01-31

申请人： TRIUNE IP LLC

发明人： Ross E. Teggatz ,  Wayne Chen ,  Brett Smith ,  James Kohout

IPC分类号： H02H11/00 ,  H02H3/18 ,  G01R31/28 ,  H02H3/08 ,  G01R19/165 ,  H02H3/04 ,  H02H3/40 ,  H02H3/42 ,  H02H7/26

CPC分类号： H02H11/005 ,  G01R19/16552 ,  G01R31/2853 ,  H02H3/04 ,  H02H3/08 ,  H02H3/18 ,  H02H3/40 ,  H02H3/42 ,  H02H7/267 ,  H02H11/006

摘要： Disclosed are advances in the arts with novel methods and apparatus for detecting faulty connections in an electrical system. Exemplary preferred embodiments include monitoring techniques and systems for monitoring signals at one or more device loads and analyzing the monitored signals for determining fault conditions at the device loads and/or at the main transmission lines. The invention preferably provides the capability to test and monitor electrical interconnections without fully activating the host system.

公开(公告)号：US20170370973A1

公开(公告)日：2017-12-28

申请号：US15619641

申请日：2017-06-12

申请人： DENSO CORPORATION

发明人： Masamichi ITO ,  Kazuki MIKAMO

IPC分类号： G01R19/165 ,  G01R31/28 ,  G01R23/02 ,  G01R31/3181 ,  G01R19/00

CPC分类号： G01R19/16552 ,  G01R19/0084 ,  G01R23/02 ,  G01R31/282 ,  G01R31/3181

摘要： A circuit chip is connected to a sensor chip in a sub-unit via a communication terminal, and includes an output wave formation circuit that performs communication by controlling a voltage of a power supply supplied from an electronic control unit (ECU) to raise a voltage level of an output signal. When the voltage of the power supply monitored by a voltage monitor rises above a threshold value, a control circuit lowers a voltage of a signal from the output wave formation circuit, thereby preventing an excessive rise of the power supply voltage used in a signal communication.