公开(公告)号：US09891250B2

公开(公告)日：2018-02-13

申请号：US15641088

申请日：2017-07-03

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yijun Duan

IPC: G01R19/12 ,  H03L7/00 ,  H05B33/08 ,  G01R19/165

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

公开(公告)号：US09366701B2

公开(公告)日：2016-06-14

申请号：US13648412

申请日：2012-10-10

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Yijun Duan

IPC: G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G01R19/12 ,  G01R19/165

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

Abstract translation: 双向电压微分电路包括启动电路，感测电路和耦合到逻辑电路的输出电路。 启动电路用于在电路通电时启动感测电路，此后加速感测电路的响应。 感测电路感测施加到输入节点的输入电压的变化。 响应于由感测电路感测的电压变化，输出电路在第一或第二输出节点处产生状态改变。 逻辑电路接收输出节点的状态并产生逻辑输出信号以指示在输入电压中检测到的变化的发生。 电压感测电路可操作以感测输入电压的变化，而不管电压是上升还是下降，而不考虑输入电压的DC值。

公开(公告)号：US09726698B2

公开(公告)日：2017-08-08

申请号：US14966129

申请日：2015-12-11

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yijun Duan

IPC: H03L7/00 ,  G01R19/12 ,  G01R19/165 ,  H05B33/08

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

公开(公告)号：US20130169188A1

公开(公告)日：2013-07-04

申请号：US13648412

申请日：2012-10-10

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Yijun Duan

IPC: G01R19/12 ,  H05B37/02

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.

Abstract translation: 双向电压微分电路包括启动电路，感测电路和耦合到逻辑电路的输出电路。 启动电路用于在电路通电时启动感测电路，此后加速感测电路的响应。 感测电路感测施加到输入节点的输入电压的变化。 响应于由感测电路感测的电压变化，输出电路在第一或第二输出节点处产生状态改变。 逻辑电路接收输出节点的状态并产生逻辑输出信号以指示在输入电压中检测到的变化的发生。 电压感测电路可操作以感测输入电压的变化，而不管电压是上升还是下降，而不考虑输入电压的DC值。

公开(公告)号：US20170299638A1

公开(公告)日：2017-10-19

申请号：US15641088

申请日：2017-07-03

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yijun Duan

IPC: G01R19/12 ,  G01R19/165 ,  H05B33/08

CPC classification number: G01R19/12 ,  G01R19/16557 ,  H05B33/0845 ,  H05B33/0887

Abstract: A bidirectional voltage differentiator circuit comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry acts to start-up the sensing circuitry when the circuit is powered on, and accelerates the response of the sensing circuitry thereafter. The sensing circuitry senses variation in an input voltage applied to an input node. Responsive to the voltage variation sensed by the sensing circuitry, the output circuitry produces a state change at a first or second output node. The logic circuitry receives the states of the output nodes and produces a logic output signal to indicate the occurrence of the variation sensed in the input voltage. The voltage sensing circuit is operable to sense variation of the input voltage regardless of whether the voltage is rising or falling and without regard to the DC value of the input voltage.