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公开(公告)号：US20190204889A1
公开(公告)日：2019-07-04
申请号：US16189089
申请日：2018-11-13
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Shunichi KAERIYAMA , Norio KIDO
CPC classification number: G06F1/28 , G01K1/08 , H02M1/32 , H02M2001/327 , H02P29/68
Abstract: There is to provide a power conversion device capable of estimating a junction temperature of a power transistor at a high accuracy. The control device includes a temperature estimation unit and controls the on and off of the power transistor through a driver. The voltage detection circuit detects the inter-terminal voltage of a source and drain terminals during the on-period of the power transistor. The temperature estimation unit previously holds the correlation information between the inter-terminal voltage and inter-terminal current of the source and drain terminals and the junction temperature, and estimates the junction temperature, based on the inter-terminal voltage detected by the voltage detection circuit, the known inter-terminal current, and the correlation information.
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公开(公告)号：US20160087622A1
公开(公告)日：2016-03-24
申请号：US14856059
申请日：2015-09-16
Applicant: Renesas Electronics Corporation
Inventor： Shunichi KAERIYAMA
IPC: H03K17/082
CPC classification number: H03K17/0828 , H03K2017/0806
Abstract: The semiconductor device according to one embodiment includes a power transistor and a sense transistor connected in parallel with each other, a first operational amplifier having a non-inverting input terminal connected to an emitter of the sense transistor and an inverting input terminal connected to an emitter of the power transistor, a resistor element having one end connected to the emitter of the sense transistor and another end connected to a first node, and an adjustment transistor placed between the first node and a low-voltage power supply. The first operational amplifier adjusts a current flowing through the adjustment transistor so that an emitter voltage of the power transistor and an emitter voltage of the sense transistor are substantially the same.
Abstract translation: 根据一个实施例的半导体器件包括彼此并联连接的功率晶体管和感测晶体管，具有连接到读出晶体管的发射极的非反相输入端和连接到发射极的反相输入端的第一运算放大器 功率晶体管的电阻元件，其一端连接到感测晶体管的发射极，另一端连接到第一节点的电阻元件，以及置于第一节点和低压电源之间的调节晶体管。 第一运算放大器调节流过调节晶体管的电流，使得功率晶体管的发射极电压和感测晶体管的发射极电压基本相同。
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公开(公告)号：US20190341861A1
公开(公告)日：2019-11-07
申请号：US16513113
申请日：2019-07-16
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Shunichi KAERIYAMA
IPC: H02M7/5387 , H02M1/084 , H03K17/687
Abstract: A power control circuit according to one embodiment includes an H-bridge circuit formed using a plurality of power transistors. The power transistors are respectively connected to current measurement circuits that measure currents flowing through the power transistors. Each of the power transistors includes a main emitter and a sense emitter through which a current corresponding to a current flowing through the main emitter flows. Each of the current measurement circuits measures a current flowing through each of the power transistors by using a current flowing through the sense emitter included in the power transistor. A control circuit controls the power transistors based on current values respectively measured by the current measurement circuits.
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公开(公告)号：US20170373676A1
公开(公告)日：2017-12-28
申请号：US15627363
申请日：2017-06-19
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Shunichi KAERIYAMA
CPC classification number: H03K17/0406 , H03K17/14 , H03K17/167
Abstract: The present invention provides a drive device and a power supply system capable of driving a power transistor with low power while reflecting variations in manufacture process and external environments. A trigger detection circuit monitors a voltage between terminals or a current between terminals in a switching period of a power transistor and detects that the voltage between terminals or the current between terminals reaches a predetermined reference value. A current switching circuit selects a register outputting a current value to a variable current driver circuit from a plurality of registers and switches the register to be selected using a detection result of the trigger detection circuit as a trigger in the switching period, thereby making the drive current of the variable current driver circuit shift.
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公开(公告)号：US20160056850A1
公开(公告)日：2016-02-25
申请号：US14820628
申请日：2015-08-07
Applicant: Renesas Electronics Corporation
Inventor： Hirokazu NAGASE , Koichi TAKEDA , Shunichi KAERIYAMA
Abstract: To provide a receiver, a communication device, and a communication method capable of restoring a signal transmitted via a non-contact transmission channel with high accuracy. A communication device has a transmission circuit that converts an input signal into a pulse, a non-contact transmission channel that has a primary side coil and a secondary side coil and transmits the pulse from the transmission circuit in a non-contact manner, a restoration circuit that restores the input signal on the basis of a reception signal corresponding to the pulse transmitted via the non-contact transmission channel, an initialization unit that initializes an output of the non-contact transmission channel, and an initialization control unit that outputs a control signal of controlling the initialization unit on the basis of the reception signal corresponding to the pulse received via the non-contact transmission channel.
Abstract translation: 提供能够以高精度恢复经由非接触式传输信道发送的信号的接收机，通信装置和通信方法。 通信装置具有将输入信号转换为脉冲的发送电路，具有初级侧线圈和次级侧线圈的非接触式发送通道，并且以非接触的方式从发送电路发送脉冲，恢复 电路，其基于与经由非接触式发送信道发送的脉冲对应的接收信号恢复输入信号，初始化单元，初始化非接触式发送信道的输出;以及初始化控制单元，其输出控制 基于与经由非接触式传输信道接收的脉冲对应的接收信号来控制初始化单元的信号。
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Patent Agency Ranking
公开(公告)号：US20160006542A1
公开(公告)日：2016-01-07
申请号：US14856039
申请日：2015-09-16
Applicant: Renesas Electronics Corporation
Inventor： Shunichi KAERIYAMA
IPC: H04L1/00
CPC classification number: H04L1/0041 , H01L2224/48137 , H01L2924/1305 , H01L2924/13055 , H04L1/0023 , H04L25/02 , H01L2924/00
Abstract: In a semiconductor device, a transmitting circuit generates a delayed data signal and a first delayed retransmission request signal by delaying a data signal and a first retransmission request signal, respectively, and outputs a pulse signal at an edge of the delayed data signal and the first delayed retransmission request signal and prohibits output of the pulse signal at an edge of the first delayed retransmission request signal during a specified period across an edge of the delayed data signal.
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公开(公告)号：US20150103950A1
公开(公告)日：2015-04-16
申请号：US14575045
申请日：2014-12-18
Applicant: Renesas Electronics Corporation
Inventor： Shunichi KAERIYAMA
IPC: H04L1/00
CPC classification number: H04L1/0041 , H01L2224/48137 , H01L2924/1305 , H01L2924/13055 , H04L1/0023 , H04L25/02 , H01L2924/00
Abstract: In a semiconductor device, a transmitting circuit generates a delayed data signal and a first delayed retransmission request signal by delaying a data signal and a first retransmission request signal, respectively, and outputs a pulse signal at an edge of the delayed data signal and the first delayed retransmission request signal and prohibits output of the pulse signal at an edge of the first delayed retransmission request signal during a specified period across an edge of the delayed data signal.
Abstract translation: 在半导体装置中，发送电路分别通过延迟数据信号和第一重发请求信号来产生延迟的数据信号和第一延迟的重发请求信号，并在延迟的数据信号的边沿输出第一 延迟重传请求信号，并且在延迟的数据信号的边缘上的指定周期期间禁止在第一延迟的重发请求信号的边缘处的脉冲信号的输出。
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公开(公告)号：US20140286446A1
公开(公告)日：2014-09-25
申请号：US14295206
申请日：2014-06-03
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Koichi TAKEDA , Shunichi KAERIYAMA
IPC: H04L25/02
CPC classification number: H04L25/026 , H01L2224/48091 , H01L2224/48137 , H01L2924/00014 , H01L2924/13091 , H01L2924/30107 , H04L25/0266 , H01L2924/00 , H01L2224/45099
Abstract: A receiver includes a positive pulse determination circuit and a negative pulse determination circuit. The positive pulse determination circuit outputs a first L-level between when a pulse signal having a negative amplitude is detected and when neither a pulse signal having a positive amplitude nor a pulse signal having a negative amplitude is detected; otherwise a first H-level if a pulse signal having a positive amplitude is detected during another period. The negative pulse determination circuit outputs a second L-level between when a pulse signal having a positive amplitude is detected and when neither a pulse signal having a positive amplitude nor a pulse signal having a negative amplitude is detected; otherwise a second H-level is output if a pulse signal having a negative amplitude is detected during the other period.
Abstract translation: 接收机包括正脉冲确定电路和负脉冲确定电路。 正脉冲确定电路在检测到具有负幅度的脉冲信号之间并且既没有检测到具有正振幅的脉冲信号也没有检测到具有负幅度的脉冲信号时，输出第一L电平; 否则如果在另一周期期间检测到具有正振幅的脉冲信号，则第一H电平。 负脉冲判定电路在检测到具有正振幅的脉冲信号之间并且既没有检测到具有正振幅的脉冲信号也没有检测到具有负幅度的脉冲信号时，输出第二L电平; 否则如果在其他周期内检测到具有负幅度的脉冲信号，则输出第二H电平。
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19.发明申请公开(公告)号：US20130285465A1
公开(公告)日：2013-10-31
申请号：US13866386
申请日：2013-04-19
Applicant: RENESAS ELECTRONICS CORPORATION
Inventor： Koichi TAKEDA , Shunichi KAERIYAMA
IPC: H01F38/14
Abstract: A transmitter circuit has transistors each of which is provided between an other end of a primary coil to whose one end a power supply voltage is supplied and either of a power supply voltage terminal and a ground voltage terminal, respectively, and a control circuit for, when causing no current to flow through the primary coil, turning on the one transistor and turning off the other transistor.
Abstract translation: 发射机电路具有分别设置在其一端提供电源电压的一端线圈的另一端和电源电压端子和接地电压端子之间的晶体管，以及控制电路， 当没有电流流过初级线圈时，接通一个晶体管并关闭另一个晶体管。
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公开(公告)号：US20180302068A1
公开(公告)日：2018-10-18
申请号：US16013430
申请日：2018-06-20
Applicant: Renesas Electronics Corporation
Inventor： Hirokazu NAGASE , Koichi TAKEDA , Shunichi KAERIYAMA
IPC: H03K5/04
Abstract: To provide a receiver, a communication device, and a communication method capable of restoring a signal transmitted via a non-contact transmission channel with high accuracy. A communication device has a transmission circuit that converts an input signal into a pulse, a non-contact transmission channel that has a primary side coil and a secondary side coil and transmits the pulse from the transmission circuit in a non-contact manner, a restoration circuit that restores the input signal on the basis of a reception signal corresponding to the pulse transmitted via the non-contact transmission channel, an initialization unit that initializes an output of the non-contact transmission channel, and an initialization control unit that outputs a control signal of controlling the initialization unit on the basis of the reception signal corresponding to the pulse received via the non-contact transmission channel.
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