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1. 发明申请

US20180224873A1 ELECTRIC DEVICES, INTEGRATED CIRCUITS, AND METHODS FOR MONITORING VOLTAGES 审中-公开
公开(公告)号：US20180224873A1
公开(公告)日：2018-08-09
申请号：US15876315
申请日：2018-01-22
申请人： Infineon Technologies AG
发明人： Mario MOTZ , Umberto ARACRI , Alessandro MICHELUTTI
IPC分类号： G05F1/571 , G01R19/165 , G05F3/30 , G01K7/01
CPC分类号： G05F1/571 , G01K7/01 , G01R19/16538 , G01R19/1659 , G05F3/30
摘要： An electrical device includes a power supply circuit configured to provide a first voltage and a second voltage, and a first verification circuit configured to derive a first and a second internal voltage from the first voltage, to compare the first and second internal voltages, and to generate a first output signal based on the comparison. The electrical device includes a second verification circuit including a first input terminal for the first voltage and a second input terminal for the second voltage, and configured to compare the first and second voltages and to generate a second output signal based on the comparison. Furthermore, the electrical device includes a combination circuit configured to generate a third output signal if the first output signal or the second output signal is indicative of the first voltage or the second voltage being outside a tolerance range.

2. 发明申请

US20180132312A1 SYSTEMS AND METHODS OF OVERVOLTAGE PROTECTION FOR LED LIGHTING 审中-公开
公开(公告)号：US20180132312A1
公开(公告)日：2018-05-10
申请号：US15653395
申请日：2017-07-18
申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.
发明人： Zhuoyan LI , Liqiang Zhu , Jiqing Yang , Lieyi Fang
IPC分类号： H05B33/08 , H02M3/156 , H02H1/00 , H02H3/20 , H02M3/335 , H02H7/12
CPC分类号： H05B33/089 , G05F1/571 , H02H1/0007 , H02H3/202 , H02H7/1213 , H02M3/156 , H02M3/33515 , H05B33/0815 , Y02B20/341
摘要： System controller and method for a power converter. For example, a system controller for a power converter includes a logic controller configured to generate a modulation signal, and a driver configured to receive the modulation signal, generate a drive signal based at least in part on the modulation signal, and output the drive signal to a switch to affect a current flowing through an inductive winding for a power converter. Additionally, the system controller includes a voltage-to-voltage converter configured to receive a first voltage signal, the modulation signal, and a demagnetization signal, and to generate a second voltage signal based at least in part on the first voltage signal, the modulation signal, and the demagnetization signal.

3. 发明申请

US20170264196A1 SEMICONDUCTOR INTEGRATED CIRCUIT 有权
公开(公告)号：US20170264196A1
公开(公告)日：2017-09-14
申请号：US15257131
申请日：2016-09-06
申请人： Kabushiki Kaisha Toshiba
发明人： Hiroyuki IDENO , Hidefumi Kushibe
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , G05F1/563 , G05F1/565 , G05F1/571 , G05F1/575 , H03F3/34 , H03F2200/555 , H03F2200/78
摘要： According to one embodiment, in a semiconductor integrated circuit, a first input terminal of an error amplifier is electrically connected to a third node between a second node and a reference potential. A second input terminal of the error amplifier is electrically connected to a reference voltage. An output terminal of the error amplifier is electrically connected to a gate of an output transistor. A first input terminal of a comparator is electrically connected to a fourth node between the second node and the reference potential. A second input terminal of the comparator is electrically connected to the reference voltage. One end of a coupling capacitance is electrically connected to an output terminal of the comparator. A gate of an auxiliary transistor is electrically connected to the other end of the coupling capacitance. A drain of the auxiliary transistor is electrically connected to the second node.

4. 发明授权

US09455628B2 Voltage regulator with overshoot suppression circuit and capability to stop overshoot suppression 有权
标题翻译：具有过冲抑制电路的电压调节器和停止过冲抑制的能力
公开(公告)号：US09455628B2
公开(公告)日：2016-09-27
申请号：US14596816
申请日：2015-01-14
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka , Masakazu Sugiura
IPC分类号： G05F1/571 , H02M3/156 , G05F1/56
CPC分类号： H02M3/156 , G05F1/56 , G05F1/571
摘要： To provide a voltage regulator capable of preventing a reduction in output voltage and an increase in output noise in a steady state without performing suppression of an overshoot. A voltage regulator is equipped with an overshoot detection circuit which detects an overshoot on the basis of an output voltage, an overshoot suppression circuit which controls an output terminal of an error amplifier circuit, based on the output of the overshoot detection circuit, and a driver state discrimination circuit which discriminates the state of an output transistor, based on an output voltage of the error amplifier circuit. The driver state discrimination circuit is configured to control the operation of the overshoot suppression circuit.
摘要翻译：提供能够防止在稳定状态下输出电压降低和输出噪声增加而不进行过冲抑制的电压调节器。电压调节器配备有基于输出电压检测过冲的过冲检测电路，基于过冲检测电路的输出来控制误差放大器电路的输出端子的过冲抑制电路和驱动器状态判别电路，其基于误差放大器电路的输出电压来辨别输出晶体管的状态。驱动器状态判别电路被配置为控制过冲抑制电路的操作。

5. 发明授权

US09400515B2 Voltage regulator and electronic apparatus 有权
标题翻译：电压调节器和电子设备
公开(公告)号：US09400515B2
公开(公告)日：2016-07-26
申请号：US14575287
申请日：2014-12-18
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka , Masakazu Sugiura
IPC分类号： G05F1/571 , G05F1/575 , G05F1/565 , G05F1/56 , G05F1/46
CPC分类号： G05F1/571 , G05F1/468 , G05F1/562 , G05F1/565 , G05F1/575
摘要： A voltage regulator is provided which can suppress an occurrence of overshooting in an output voltage at the time of starting a power source with a source voltage or the like. The voltage regulator includes an error amplifier circuit, an overshooting control circuit that is connected to the gate of an output transistor, and an ON/OFF circuit that controls ON and OFF states of at least the error amplifier circuit. Here, the ON/OFF circuit controls the overshooting control circuit so as to turn on the output transistor when a predetermined time passes after at least the error amplifier circuit is turned on at the time of starting the voltage regulator.
摘要翻译：提供了一种电压调节器，其可以抑制在用电源电压等启动电源时的输出电压中的过冲的发生。电压调节器包括误差放大器电路，连接到输出晶体管的栅极的过冲控制电路和控制至少误差放大器电路的导通和截止状态的ON / OFF电路。这里，ON / OFF电路控制过冲控制电路，以便在启动电压调节器时至少在误差放大器电路接通之后经过预定时间后接通输出晶体管。

6. 发明申请

US20150378377A1 ROBUST SINK / SOURCE OUTPUT STAGE AND CONTROL CIRCUIT 有权
标题翻译：稳健的SINK / SOURCE输出级和控制电路
公开(公告)号：US20150378377A1
公开(公告)日：2015-12-31
申请号：US14547264
申请日：2014-11-19
申请人： Dialog Semiconductor GmbH
发明人： Frank Kronmueller , Ambreesh Bhattad
IPC分类号： G05F1/56
CPC分类号： G05F1/563 , G05F1/468 , G05F1/56 , G05F1/562 , G05F1/571 , H03F3/3027 , H03F3/45273 , H03F3/68 , H03F2200/129 , H03F2200/153 , H03F2200/474 , H03F2200/78 , H03F2203/45116
摘要： Multi-stage amplifiers, such as linear regulators, configured to provide a constant output voltage subject to load transients, are described. The multi-stage amplifier comprises a first amplification stage which activates or deactivates a first output stage in response to an input voltage at an input node. The first output stage is configured to source a current at an output node of the multi-stage amplifier from a high potential, when activated. Furthermore, the multi-stage amplifier comprises a second amplification stage configured to activate or to deactivate a second output stage in response to the input voltage at the input node. The second output stage is configured to sink a current at the output node of the multi-stage amplifier to a low potential, when activated. The first amplification stage and the second amplification stage are configured to activate the first output stage and the second output stage in a mutually exclusive manner.
摘要翻译：描述了被配置为提供受负载瞬变影响的恒定输出电压的多级放大器，例如线性稳压器。多级放大器包括第一放大级，其响应于输入节点处的输入电压激活或去激活第一输出级。第一输出级被配置为当激活时从多电平放大器的输出节点处的电流源于高电位。此外，多级放大器包括第二放大级，其被配置为响应于输入节点处的输入电压来激活或去激活第二输出级。第二输出级被配置为当激活时将多级放大器的输出节点处的电流吸收到低电位。第一放大级和第二放大级被配置为以相互排斥的方式激活第一输出级和第二输出级。

7. 发明授权

US09141121B2 Voltage regulator 有权
标题翻译：电压调节器
公开(公告)号：US09141121B2
公开(公告)日：2015-09-22
申请号：US14015112
申请日：2013-08-30
申请人： Seiko Instruments Inc.
发明人： Yotaro Nihei , Manabu Fujimura
IPC分类号： G05F1/571 , G05F1/575
CPC分类号： G05F1/571 , G05F1/575
摘要： Provided is a voltage regulator capable of suppressing excessive overshoot at the output terminal when the power supply fluctuates in a non-regulate state. The voltage regulator includes: an error amplification circuit that amplifies a difference between reference voltage and divided voltage, thus controlling a gate of an output transistor; an amplifier that compares the reference voltage and the divided voltage to detect overshoot at the output voltage; a first transistor that lets current that is proportional to current flowing through the output transistor pass therethrough; a current mirror circuit that mirrors current that is proportional to the current flowing through the output transistor; and a first bias circuit connected to the amplifier via the current mirror circuit, the first bias circuit increasing bias current of the amplifier to increase a response speed.
摘要翻译：提供一种电压调节器，当电源在非调节状态波动时，能够抑制输出端子处的过度过冲。电压调节器包括：误差放大电路，其放大参考电压和分压之间的差，从而控制输出晶体管的栅极; 放大器，用于比较参考电压和分压，以检测输出电压的过冲; 使流过输出晶体管的电流成比例的电流的第一晶体管通过其中; 电流镜电路，其反映与流过输出晶体管的电流成比例的电流; 以及通过电流镜电路连接到放大器的第一偏置电路，第一偏置电路增加放大器的偏置电流以增加响应速度。

8. 发明申请

US20150054494A1 POWER SUPPLY DETECTING CIRCUIT 有权
标题翻译：电源检测电路
公开(公告)号：US20150054494A1
公开(公告)日：2015-02-26
申请号：US14459941
申请日：2014-08-14
申请人： HON HAI PRECISION INDUSTRY CO., LTD.
发明人： CHING-CHUNG LIN
IPC分类号： G01R21/06
CPC分类号： G06F1/305 , G01R31/40 , G05F1/571 , G05F1/573 , G06F1/28 , H02M1/32 , H02M7/217 , H02M7/219
摘要： A power supply detecting circuit includes a first voltage detecting module configured to detect an input voltage of a power supply module; a micro control unit (MCU) connected to the first voltage detecting module; a display module connected to the MCU; a second voltage detecting module configured to detect an output voltage of the power supply module; and a current detecting module configured to detect an output current of the power supply module. The MCU is capable of comparing the detected input voltage, the detected output voltage, and the detected output current of the power supply module with corresponding predetermined parameters and calculating an output power of the power supply module. The display module is capable of displaying the detected input voltage, the detected output voltage, the detected output current, and the output power of the power supply module.
摘要翻译：电源检测电路包括：第一电压检测模块，被配置为检测电源模块的输入电压; 连接到第一电压检测模块的微控制单元（MCU）; 连接到MCU的显示模块; 第二电压检测模块，被配置为检测所述电源模块的输出电压; 以及电流检测模块，被配置为检测所述电源模块的输出电流。 MCU能够将检测到的输入电压，检测到的输出电压和检测到的电源模块的输出电流与相应的预定参数进行比较，并计算电源模块的输出功率。显示模块能够显示检测到的输入电压，检测到的输出电压，检测的输出电流和电源模块的输出功率。

9. 发明授权

US08649144B2 Method of forming an over-voltage protection circuit and structure therefor 有权
标题翻译：形成过电压保护电路及其结构的方法
公开(公告)号：US08649144B2
公开(公告)日：2014-02-11
申请号：US11671034
申请日：2007-02-05
申请人： Paolo Migliavacca
发明人： Paolo Migliavacca
IPC分类号： H02H3/20
CPC分类号： G05F1/571
摘要： In one embodiment, an over-voltage protection circuit is configured to have two control circuits that respond at different values of the input voltage.
摘要翻译：在一个实施例中，过电压保护电路被配置为具有响应输入电压的不同值的两个控制电路。

10. 发明授权

US08648578B2 Capless low drop-out voltage regulator having discharge circuit compensating for on-chip output capacitance and response time 有权
标题翻译：具有放电电路补偿片上输出电容和响应时间的无限低压降稳压器
公开(公告)号：US08648578B2
公开(公告)日：2014-02-11
申请号：US12679485
申请日：2008-09-29
申请人： Hui Zhao , Zhen Yang
发明人： Hui Zhao , Zhen Yang
IPC分类号： G05F1/613
CPC分类号： G05F1/571
摘要： A voltage regulator is provided having one or more discharger circuits that compensate for low on-chip output capacitance and a slow loop response time. In one embodiment, the voltage regulator includes an output transistor coupled to an output voltage line, an output voltage sensing arrangement coupled to the output voltage line for producing an output feedback voltage, and an error amplifier coupled to the output feedback voltage, the output transistor, and a reference voltage for applying feedback control to the output transistor. A first discharger circuit is coupled to the output voltage line and to a reference potential, the first discharger circuit being triggered by a steep-rise overvoltage condition. In another embodiment, a combination of fast and slow discharger circuits is used to improve the load step response—i.e., to stop the output voltage from jumping too high and to pull it back to stable value very quickly, such that the load circuits are protected.
摘要翻译：提供了具有一个或多个放大器电路的电压调节器，其补偿片上输出电容的低电平和缓慢的环路响应时间。在一个实施例中，电压调节器包括耦合到输出电压线的输出晶体管，耦合到输出电压线的输出电压感测装置，用于产生输出反馈电压，以及耦合到输出反馈电压的误差放大器，输出晶体管以及用于向输出晶体管施加反馈控制的参考电压。第一放电电路耦合到输出电压线和参考电位，第一放电电路由陡升过压状态触发。在另一个实施例中，使用快速和慢速放电器电路的组合来改善负载阶跃响应 - 即停止输出电压跳跃太高并将其非常快地拉回稳定值，使得负载电路被保护。

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