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1. 发明公开

US20240128969A1 POWER-ON RESET CIRCUIT 审中-公开
公开(公告)号：US20240128969A1
公开(公告)日：2024-04-18
申请号：US18396131
申请日：2023-12-26
申请人： ROHM CO., LTD.
发明人： Masanobu TSUJI
IPC分类号： H03K17/22 , H03K3/037 , H03K19/20
CPC分类号： H03K17/223 , H03K3/0377 , H03K19/20
摘要： A power-on reset circuit supplies a reset pulse to a sequential circuit to be initialized. A latch circuit includes a first inversion circuit and a second inversion circuit structured to invert and amplify a signal input thereto, with an output node of the first inversion circuit connected to an input node of the second inversion circuit, and with an output node of the second inversion circuit connected to an input node of the first inversion circuit. A decision circuit receives the first signal from the output node of the first inversion circuit and the second signal from the output node of the second inversion circuit and generates a reset pulse on the basis of the first signal and the second signal.

2. 发明授权

US10063218B2 Schmitt trigger with threshold voltage close to rail voltage 有权
公开(公告)号：US10063218B2
公开(公告)日：2018-08-28
申请号：US14270296
申请日：2014-05-05
申请人： Cirrus Logic, Inc.
发明人： Dan Shen
IPC分类号： H03F99/00 , H03K3/037 , H03F3/217 , H03K3/3565
CPC分类号： H03K3/0377 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03K3/3565
摘要： Voltage level shifting in a switching output stage is presented. The circuit may include a switching output stage configured to receive an analog input signal and provide a responsive digital output signal, the switching output stage having a first switching device coupled to a first supply voltage and a second switching device coupled to a second supply voltage, the first switching device and the second switching device being coupled to a common output node. The apparatus may also include a voltage level shifter circuit coupled to a switching control node of the second switching device, the voltage level shifter configured to shift a voltage level at the switching control node of the second switching device relative to the analog input signal, wherein the digital output signal at the common output node transitions as the input signal reaches a predetermined threshold value.

3. 发明申请

US20170222637A1 GATE CONTROL CIRCUIT AND POWER SUPPLY CIRCUIT 有权
公开(公告)号：US20170222637A1
公开(公告)日：2017-08-03
申请号：US15250569
申请日：2016-08-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Yukio TSUNETSUGU
IPC分类号： H03K17/082 , H03K3/037 , H03K17/567 , H03K5/08 , H03K17/284 , H03K17/30
CPC分类号： H03K17/0822 , H03K3/0377 , H03K5/08 , H03K17/08128 , H03K17/168 , H03K17/284 , H03K17/302 , H03K17/567
摘要： A gate control circuit includes a first pulse generator that outputs a first pulse signal when an input signal changes from a first logical level to a second logical level, a first gate controlling portion that controls a gate voltage of a first transistor based on a first control signal when the input signal is at the second logical level, a second pulse generator that outputs a second pulse signal when the input signal changes from the second logical level to the first logical level, and a second gate controlling portion that controls the gate voltage of the first transistor based on a second control signal when the input signal is at the first logical level. The first gate controlling portion includes a first overcurrent controlling portion that controls a voltage level of the first control signal after an expiration of an output period of the first pulse signal.

4. 发明授权

US09673791B2 Schmitt trigger circuit and power supply monitoring apparatus 有权
公开(公告)号：US09673791B2
公开(公告)日：2017-06-06
申请号：US14807493
申请日：2015-07-23
申请人： Yazaki Corporation
发明人： Yasutaka Wakasugi , Takaaki Ishii
IPC分类号： H03K3/00 , H03K3/2893 , H03K3/13 , H03K3/0233 , H03K3/037
CPC分类号： H03K3/2893 , H03K3/02337 , H03K3/0377 , H03K3/13
摘要： A Schmitt trigger circuit according to an embodiment includes a voltage dividing circuit that divides an input voltage and outputs a divided voltage, and a basic Schmitt trigger circuit that includes a transistor as a current controlling element and controls current flowing through a light emitting diode (LED) included in an external photocoupler on the basis of the output voltage of the voltage dividing circuit proportional to the input voltage. The voltage dividing circuit has a positive temperature coefficient.

5. 发明授权

US09667239B2 Voltage regulator having enhancing linearity 有权
公开(公告)号：US09667239B2
公开(公告)日：2017-05-30
申请号：US15171680
申请日：2016-06-02
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Takahiro Nomiyama , Dong-Jin Keum , Hoang Quoc Duong , Jae-Yeol Han
IPC分类号： G05F1/10 , G06F3/02 , H03K17/082 , H03K5/24 , H03K3/037 , H03K19/00 , H03K19/20 , G05F1/575
CPC分类号： H03K17/0822 , G05F1/575 , G11C5/147 , H03K3/0377 , H03K5/24 , H03K19/0013 , H03K19/20 , H03K2217/0027
摘要： A voltage regulator includes a high duty cycle detector, a feedback controller, a hysteretic comparator, and first and second drivers. The high duty cycle detector generates a high duty cycle signal based on a power supply voltage and a reference voltage. The feedback controller generates first and second feedback voltages based on the reference voltage, the high duty cycle signal and an output voltage of the voltage regulator. The hysteretic comparator compares the reference voltage and the first feedback voltage to generate a control signal. When the first feedback voltage is activated, the first driver drives an output node that provides the output voltage based on the control signal and the high duty cycle signal. When the second feedback voltage is activated, the second driver generates a third voltage proportional to the reference voltage based on the power supply voltage and the second feedback voltage, and drives the output node with the third voltage.

6. 发明申请

US20170085394A1 ELECTRONIC CIRCUIT FOR CONTROLLING AN ACTUATOR 审中-公开
公开(公告)号：US20170085394A1
公开(公告)日：2017-03-23
申请号：US15311464
申请日：2015-04-08
申请人： IFM ELECTRONIC GMBH
发明人： Jörge Schulz
IPC分类号： H04L12/40 , H03K3/037 , E05F15/00 , H03K19/21
CPC分类号： H04L12/40045 , E05F15/00 , E05Y2900/546 , H03K3/0377 , H03K5/04 , H03K5/1534 , H03K19/21
摘要： The present invention provides an electronic circuit for controlling an actuator comprising a transceiver unit (1) for a bus system the bus terminal (2) of which has a monostable behaviour with an active period of greater than 1 ms, wherein the transceiver unit (1) is controlled by a microcontroller (3), wherein the monostable behaviour of the transceiver unit (1) is switched off with additionally superimposed control pulses, wherein the time interval between two control pulses is smaller than the monostable active period of the transceiver unit (1) and the control pulses are generated by temporal combination of two control signals the time resolution of which is lower than the pulse duration of the control pulses derived therefrom, which is implemented by use of a RC combination (4) and/or a logic gate (6) with a differentiating or delaying effect.

7. 发明授权

US09484910B2 Zero-current POR circuit 有权
标题翻译：零电流POR电路
公开(公告)号：US09484910B2
公开(公告)日：2016-11-01
申请号：US14389407
申请日：2014-03-19
申请人： CAPITAL MICROELECTRONICS CO., LTD
发明人： Rifeng Mai
IPC分类号： H03K17/22 , H03K17/284 , H03K3/037
CPC分类号： H03K17/223 , G06F1/24 , G06F1/26 , H03K3/0377 , H03K17/284
摘要： A power-on reset (POR) circuit includes an RC circuit; a Schmitt trigger, an inverter, and a first PMOS tube. A power supply voltage charges a capacitor through the RC circuit. When a voltage of the capacitor reaches a first threshold, the Schmitt trigger reverses, a first level is output. The POR circuit includes a discharge circuit used to detect a glitch of the power supply voltage, and output a first signal to an input end of the Schmitt trigger when the glitch is detected. The first signal allows the Schmitt trigger to reverse again to output a second level, so as to turn off the first PMOS tube through the inverting amplifier. When the power supply voltage rises along an oblique line again, the Schmitt trigger reverses, and the first level is output, so as to reset the system where the circuit is.
摘要翻译：上电复位（POR）电路包括RC电路; 施密特触发器，反相器和第一PMOS管。电源电压通过RC电路对电容器充电。当电容器的电压达到第一阈值时，施密特触发器反相，输出第一电平。 POR电路包括用于检测电源电压毛刺的放电电路，并且当检测到毛刺时，将第一信号输出到施密特触发器的输入端。第一个信号允许施密特触发器再次反转以输出第二电平，以便通过反相放大器关闭第一个PMOS管。当电源电压再次沿斜线上升时，施密特触发器反向，并输出第一电平，以便重新设置电路的系统。

8. 发明申请

US20160275999A1 SYSTEM AND METHOD FOR AUTOMATIC DETECTION OF POWER UP FOR A DUAL-RAIL CIRCUIT 审中-公开
标题翻译：用于双轨电路自动检测功率的系统和方法
公开(公告)号：US20160275999A1
公开(公告)日：2016-09-22
申请号：US15167101
申请日：2016-05-27
申请人： STMicroelectronics International N.V.
发明人： Amit Chhabra
IPC分类号： G11C5/14 , H03K5/08 , H03K17/22 , H03K3/037
CPC分类号： G11C5/148 , G05F1/46 , G05F1/465 , H03K3/0377 , H03K5/082 , H03K17/223
摘要： When powering-up or exiting from a sleep mode, the ramping up of various supply voltage nodes may occur at different rates. Thus, in a dual-rail memory circuit, a first voltage rail may be at voltage before a second voltage rail. Such a transient state of operation may lead to current spikes that unnecessarily draw power and introduce undesired inefficiency. An internal sleep signal generation circuit in the dual-rail memory circuit precisely controls an internal sleep signal such that the transition from off or sleep mode to operating mode is set to assure that the supply voltage nodes are close enough to the at-voltage operating level before releasing the sleep mode.
摘要翻译：当从睡眠模式上电或退出时，各种电源节点的升高可能以不同的速率发生。因此，在双轨存储器电路中，第一电压轨可以在第二电压轨之前处于电压。这种瞬时的操作状态可能导致电流尖峰不必要地抽取功率并引入不期望的低效率。双轨存储器电路中的内部睡眠信号产生电路精确地控制内部睡眠信号，使得从关闭或休眠模式向工作模式的转变被设置为确保电源电压节点足够接近于工作电压在释放睡眠模式之前。

9. 发明申请

US20160268981A1 Transimpedance Amplifier (TIA) Having an Enlarged Dynamic Range and Optical Devices Using the Same 有权
标题翻译：具有放大动态范围的互阻放大器（TIA）和使用其的光学器件
公开(公告)号：US20160268981A1
公开(公告)日：2016-09-15
申请号：US14522384
申请日：2014-10-22
申请人： SOURCE PHOTONICS (CHENGDU) CO., LTD.
发明人： Xu JIANG , Yuan SONG , Shuyuan ZHANG , Yuanzhong XU
IPC分类号： H03F3/08 , H04B10/25 , H04B10/69 , H03K3/037
CPC分类号： H04B10/6931 , H03F1/083 , H03F3/087 , H03F3/45475 , H03F2203/45522 , H03F2203/45528 , H03F2203/45536 , H03G3/3084 , H03K3/0377
摘要： A gain-variable trans-impedance amplifier (TIA) in optical device is disclosed. The TIA has an improved dynamic range for receiving electrical signals and is configured to convert current signals from an avalanche photodiode (APD) to voltage signals. A resistor element is between the input and output terminals of the TIA, wherein the resistance of the resistor element can regulate the resistance and/or impedance value of the TIA, and a switch determines or controls the resistance of the resistor element. When the power of an optical signal received by the APD is higher than a predetermined value, the resistance becomes smaller and the gain of the TIA becomes greater. When the power of the optical signal is lower than the predetermined value, the resistance becomes greater. The gain of the TIA is automatically adjusted on the basis of the intensity of received optical signals to obtain a greater dynamic operational range.
摘要翻译：公开了一种光学装置中的增益变阻抗放大器（TIA）。 TIA具有用于接收电信号的改进的动态范围，并且被配置为将来自雪崩光电二极管（APD）的电流信号转换为电压信号。电阻元件在TIA的输入和输出端之间，其中电阻元件的电阻可以调节TIA的电阻和/或阻抗值，开关确定或控制电阻元件的电阻。当由APD接收的光信号的功率高于预定值时，电阻变小并且TIA的增益变大。当光信号的功率低于预定值时，电阻变大。根据接收到的光信号的强度自动调整TIA的增益，以获得更大的动态工作范围。

10. 发明申请

US20150349775A1 Radiation Hardened By Design Digital Input/Output Circuits And Related Methods 有权
标题翻译：通过设计实现的辐射数字输入/输出电路及相关方法
公开(公告)号：US20150349775A1
公开(公告)日：2015-12-03
申请号：US12776188
申请日：2010-05-07
申请人： Lawrence T. Clark , Kyle E. Nielsen
发明人： Lawrence T. Clark , Kyle E. Nielsen
IPC分类号： H03K19/003 , H01L27/088 , H01L27/092 , H01L27/06 , H03K19/20 , H01L23/50 , H03K3/037 , H03K19/0175 , H03K19/00 , H01L27/02 , H01L23/00
CPC分类号： H03K19/23 , H01L23/50 , H01L24/03 , H01L24/05 , H01L27/0255 , H01L27/0629 , H01L27/088 , H01L27/092 , H01L2224/0401 , H01L2224/04042 , H01L2924/14 , H01L2924/1426 , H03K3/0377 , H03K19/0002 , H03K19/00338 , H03K19/00392 , H03K19/017509 , H03K19/20
摘要： Embodiments of radiation hardened by design digital input/output circuits are described herein. Other examples and related methods are also disclosed herein.
摘要翻译：本文描述了由设计数字输入/输出电路硬化的辐射的实施例。本文还公开了其它实例和相关方法。

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