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公开(公告)号：US20230142014A1
公开(公告)日：2023-05-11
申请号：US17949334
申请日：2022-09-21
发明人： Kwi Hyun KIM , Byoung Sun NA , Sang Yong NO , Jong Woong CHANG , Chong Chul CHAI
CPC分类号： H02H9/045 , H01L33/382 , H01L27/0266 , H01L33/62 , G09G2300/0426 , G09G2300/0842 , G09G3/32 , H01L25/167
摘要： A display device includes a base layer including a display area and a non-display area, an emission unit including a first electrode electrically connected to a first driving power source, a second electrode electrically connected to a second driving power source, and a light-emitting element disposed between first and second electrodes, a first transistor including a first terminal electrically connected to the first driving power source, a second terminal electrically connected to the first electrode of the emission unit, and a gate electrode electrically connected to a first node, a second transistor including a first terminal electrically connected to a data line, a second terminal electrically connected to the first node, and a gate electrode electrically connected to a scan line, and an electrostatic discharge circuit disposed in the display area and disposed between the first driving power source and the data line.
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公开(公告)号：US20180367132A1
公开(公告)日：2018-12-20
申请号：US16110147
申请日：2018-08-23
申请人： BYD COMPANY LIMITED
IPC分类号： H03K17/081 , H02H9/04
CPC分类号： H03K17/08104 , H01L27/0255 , H02H9/045 , H02M1/08 , H03K17/08142 , H03K17/0822 , H03K17/163 , H03K17/166 , H03K19/0185
摘要： The present disclosure discloses a drive circuit of a transistor, including: a high-voltage power supply and a low-voltage power supply; a high-voltage power supply domain circuit and a low-voltage power supply domain circuit, where the high-voltage power supply domain circuit is connected to the high-voltage power supply; an electrostatic discharge apparatus; a level shifter circuit, wherein the level shifter circuit includes a level detection circuit, a current limiting module, a discharge module, and a switch transistor, the level detection circuit is connected to a positive electrode of the high-voltage power supply and is separately connected to the current limiting module, the discharge module, and the high-voltage power supply domain circuit, the current limiting module is further connected to a first end of the switch transistor, the discharge module is further connected to a negative electrode of the high-voltage power supply, a control end of the switch transistor is connected to the low-voltage power supply domain circuit and a second end of the switch transistor is connected to a negative electrode of the low-voltage power supply, the current limiting module is configured to limit the discharged electricity when the drive circuit performs electrostatic discharge, and the discharge module is configured to form a discharge assisting path between the negative electrode of the high-voltage power supply and the first end of the switch transistor to assist electrostatic discharge of the drive circuit.
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13.发明申请公开(公告)号：US20180241246A1
公开(公告)日：2018-08-23
申请号：US15880960
申请日：2018-01-26
申请人： Liebert Corporation
发明人： Brian P. HEBER , Xian CHEN
CPC分类号： H02J9/061 , H02H9/045 , H02M5/4585 , H02M7/125 , H02M7/487
摘要： Effects of a surge in an AC input voltage to a UPS is mitigated. If the AC input voltage is overvoltage, the rectifier is operated using a DC bus target voltage for the DC bus voltage unless the rectifier reaches its current limit. If the rectifier reaches its current limit, the DC bus target voltage is increased by a predetermined amount which is used as a current DC bus target voltage unless the increased DC bus target voltage exceeds a maximum DC bus voltage limit in which case the current DC bus target voltage is set to the maximum DC bus voltage limit. The rectifier is then operated using the current DC bus target voltage until it reaches its current limit or the AC input voltage surge has passed. If the rectifier again reaches its current limit, the above steps starting with increasing the DC bus target voltage are repeated.
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公开(公告)号：US20180233906A1
公开(公告)日：2018-08-16
申请号：US15430586
申请日：2017-02-13
IPC分类号： H02H9/04
摘要： Detecting electrostatic discharge (“ESD”) events in a computer system, includes: determining, from an ESD detector installed in the computer system, that an ESD event has occurred; identifying a component of the computer system within a predefined proximity to the ESD detector as possibly affected by the ESD event; and notifying a user of the computer system of the component possibly affected by the ESD event.
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公开(公告)号：US20180203479A1
公开(公告)日：2018-07-19
申请号：US15866672
申请日：2018-01-10
发明人： Ju Hyun LEE , Kyu Ho KIM , Chun Sik JUNG , Sung Gon KIM
摘要： A regulator control circuit includes a regulator configured to provide an output voltage by regulation using one of an input voltage and a dropped input voltage, to a load; and a heat dissipation circuit configured to sense a change in the input voltage, and provide the dropped input voltage to the regulator when the input voltage is sensed to be equal to or higher than a preset level.
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公开(公告)号：US20180131180A1
公开(公告)日：2018-05-10
申请号：US15346230
申请日：2016-11-08
申请人： Teradyne, Inc.
IPC分类号： H02H9/04
CPC分类号： H02H9/045
摘要： An example system includes a channel over which signals are transmitted between test equipment and a device under test (DUT); and limiting circuitry to limit a voltage on the channel. The limiting circuitry includes a PN-junction device connected to pass current in response to the voltage on the channel exceeding a limit.
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公开(公告)号：US09912149B2
公开(公告)日：2018-03-06
申请号：US14573063
申请日：2014-12-17
CPC分类号： H02H9/04 , H02H9/045 , H03K5/2463
摘要： Lighting and surge protection circuitry for protection of a differential pair includes a diode bridge circuit having a first pair and a second pair of connections to the diode bridge circuit, with the first pair of connections configured to be coupled to a pair of differential inputs of a functional circuit and a first diode coupled between the second pair of connections; and second and third diodes coupled between the first pair of connections and ground. The lighting and surge protection circuitry also includes a diode pair coupled between an output of the functional circuit being protected and power and ground terminals and a small resistance in series with the output of the functional circuit.
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公开(公告)号：US20180047720A1
公开(公告)日：2018-02-15
申请号：US15237324
申请日：2016-08-15
申请人： NXP B.V.
发明人： DA-WEI LAI , TAEDE SMEDES
CPC分类号： H01L27/0296 , H01L27/0251 , H01L27/0255 , H01L27/0266 , H01L27/0292 , H02H9/045
摘要： Semiconductor devices with cross-domain electrostatic discharge (ESD) protection and related fabrication methods are provided. An exemplary semiconductor device includes first domain circuitry, second domain circuitry, and an interface coupled between an output node of the first domain driver circuitry and second domain receiver circuitry. The receiver circuitry includes a transistor having a gate electrode coupled to the interface, with a body electrode of the transistor being coupled to protection circuitry of the first domain circuitry. The body electrode is effectively biased to a reference voltage node of the first domain by the protection circuitry in response to an ESD event to protect the gate oxide of the transistor from a potentially damaging ESD voltage.
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公开(公告)号：US09822584B2
公开(公告)日：2017-11-21
申请号：US14711086
申请日：2015-05-13
申请人： QMotion Incorporated
CPC分类号： E06B9/72 , E06B2009/6809 , H01Q1/50 , H02H9/045
摘要： An electrostatic discharge (ESD) circuit for use with motorized window shades includes an antenna connected to a motor controller having a printed circuit board, a receiver or transceiver, a microprocessor and memory that are connected to and operate a motor. The ESD circuit is connected to the line-in between the antenna and the downstream components of the printed circuit board. The ESD circuit includes an inductor in parallel with two anti-parallel diodes in reverse polarity to one another. The ESD circuit shunts damaging signals or ESD events to ground by providing a lower impedance or lower resistance path to ground for these signals, whereas the ESD circuit allows the signals of interest to pass by the ESD circuit as the ESD circuit provides a higher impedance or higher resistance path to ground as compared to the signal of interest passing through the receiver or transceiver of the motor controller.
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公开(公告)号：US20170324237A1
公开(公告)日：2017-11-09
申请号：US15489119
申请日：2017-04-17
申请人： Siemens Schweiz AG
发明人： Marcel Baumeler , Peter Christen
摘要： The present disclosure relates to a circuit providing protection against ground faults and over-voltages. The teachings thereof may be embodied in circuits including a first USB VBUS terminal; a first USB data terminal; a second USB VBUS terminal; a second USB data terminal; a VBUS line coupling the USB VBUS terminals; a data line coupling the USB data terminals; an interrupter arranged in the VBUS line or in the data line; a control circuit controlling the interrupter, comprising a breakdown member defining a first threshold voltage and a first comparison member to compare a voltage at the first USB VBUS terminal to a second threshold voltage, wherein the breakdown member connects to the first USB VBUS terminal and the switch generates an interrupt signal if: a voltage at the first USB VBUS terminal causes a voltage drop over the breakdown member exceeding the first threshold voltage, or a voltage at the first USB VBUS terminal causes a voltage applied to the first comparison member less than the second voltage threshold.
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