专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US09798341B2 Voltage regulator and semiconductor device 有权
公开(公告)号：US09798341B2
公开(公告)日：2017-10-24
申请号：US14591415
申请日：2015-01-07
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka
IPC分类号： G05F1/56 , G05F1/575
CPC分类号： G05F1/56 , G05F1/561 , G05F1/562 , G05F1/575
摘要： Provided is a voltage regulator including a clamp circuit capable of protecting a gate of an output transistor without limiting a drivability of the output transistor. The voltage regulator includes a level shift circuit having an input terminal connected to the gate of the output transistor and an output terminal connected to an input of the clamp circuit. The clamp circuit is controlled by an output voltage of the level shift circuit.

12. 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。

13. 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。

14. 发明授权

US09323262B2 Voltage regulator 有权
标题翻译：电压调节器
公开(公告)号：US09323262B2
公开(公告)日：2016-04-26
申请号：US14599158
申请日：2015-01-16
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka
IPC分类号： G05F1/56 , G05F1/575 , G05F1/573
CPC分类号： G05F1/56 , G05F1/573 , G05F1/575
摘要： Provided is a voltage regulator capable of preventing breakdown of a gate of an input transistor even when an overshoot occurs at an output terminal. The voltage regulator includes a diode, which is provided to an input transistor to which a divided voltage of an error amplifier circuit is input. The diode includes a cathode connected to a source of the input transistor and an anode connected to a gate thereof.
摘要翻译：提供了即使在输出端子发生过冲时也能够防止输入晶体管的栅极的击穿的电压调节器。电压调节器包括二极管，该二极管被提供给输入晶体管，误差放大器电路的分压被输入到该输入晶体管。二极管包括连接到输入晶体管的源极的阴极和连接到其栅极的阳极。

15. 发明授权

US09059699B2 Power supply switching circuit 有权
标题翻译：电源开关电路
公开(公告)号：US09059699B2
公开(公告)日：2015-06-16
申请号：US14029221
申请日：2013-09-17
申请人： Seiko Instruments Inc.
发明人： Tsutomu Tomioka , Atsushi Igarashi , Masakazu Sugiura
IPC分类号： G05F3/26 , G05F1/59 , G05F1/56 , G05F1/46 , H02J3/14 , H02J1/10 , H03K17/00
CPC分类号： H03K17/005 , G05F1/56 , H02J1/10
摘要： Provided is a power supply switching circuit capable of suppressing a load fluctuation such as undershoot that occurs at an output terminal at the time of power supply switching. The power supply switching circuit includes: a battery connected to the output terminal; a replica current generation circuit for generating a replica current that is proportional to a current flowing from the battery to the output terminal; a voltage regulator connected to the output terminal, the voltage regulator including a reference voltage circuit, an error amplifier circuit, an output transistor, and a voltage divider circuit; and a current mirror circuit for causing the replica current to flow through the output transistor of the voltage regulator.
摘要翻译：提供一种电源切换电路，其能够抑制在电源切换时在输出端子处发生的诸如下冲的负载波动。电源开关电路包括：连接到输出端子的电池; 复制电流产生电路，用于产生与从电池流向输出端的电流成比例的复制电流; 连接到输出端子的电压调节器，所述电压调节器包括参考电压电路，误差放大器电路，输出晶体管和分压器电路; 以及用于使复制电流流过电压调节器的输出晶体管的电流镜电路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式