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    • 2. 发明申请
    • 半導体集積回路装置
    • 半导体集成电路设备
    • WO2015114923A1
    • 2015-08-06
    • PCT/JP2014/081063
    • 2014-11-25
    • アルプス電気株式会社
    • 斉藤 潤一澤田石 智之
    • H01L21/822H01L27/04
    • H03K17/08122H01L27/0266H01L27/092H01L29/7817H02H11/002H03K17/0822H03K17/161
    • 【課題】信号線の誤接続等による逆流電流を防止できるとともに、通常の動作状態において回路の不要な電力損失を抑えることができる半導体集積回路装置を提供する。 【解決手段】誤接続等によって出力電圧VOUTがグランド電位VSSより低い異常な状態となった場合、N型DMOSトランジスタQd1及び第1のP型MOSトランジスタQp1がオフ状態になるとともに、それらの寄生ダイオードには逆方向に電圧が加わって電流が流れない。出力電圧VOUTがグランド電位VSSより高い通常の状態では、並列に接続されたN型DMOSトランジスタQd1及び第1のP型MOSトランジスタQp1の少なくとも一方がオン状態となり、N型DMOSトランジスタQd1の寄生ダイオードD1には電流が流れない。
    • [问题]提供一种半导体集成电路器件,其中消除了由于信号线的错误连接等引起的反向电流,并且在正常操作状态下可以抑制电路的不必要的功率损耗。 [解决方案]在由于错误连接等导致输出电压(VOUT)低于接地电位(VSS)的异常状态的情况下,N型DMOS晶体管(Qd1)和第一P型MOS晶体管 (Qp1)截止时,与晶体管的寄生二极管相反的方向施加电压,在寄生二极管中不流过电流。 在输出电压(VOUT)高于接地电位(VSS)的正常状态下,N型DMOS晶体管(Qd1)和/或第一P型MOS晶体管(Qp1)导通,所述N- 类型的DMOS晶体管和第一P型MOS晶体管并联连接,并且电流不在N型DMOS晶体管(Qd1)的寄生二极管(D1)中流动。
    • 3. 发明申请
    • CASCODE SWITCHES INCLUDING NORMALLY-OFF AND NORMALLY-ON DEVICES AND CIRCUITS COMPRISING THE SWITCHES
    • CASCODE开关,包括正常关闭和正常设备和包含开关的电路
    • WO2012141859A2
    • 2012-10-18
    • PCT/US2012/030045
    • 2012-03-22
    • SS SC IP, LLCSPRINGETT, Nigel
    • SPRINGETT, Nigel
    • H03K17/687H03K17/74
    • H03K17/168H03K17/04206H03K17/161H03K17/567H03K17/687H03K17/6871H03K2017/6875
    • Switches comprising a normally-off semiconductor device and a normally-on semiconductor device in cascode arrangement are described. The switches include a capacitor connected between the gate of the normally-on device and the source of the normally-off device. The switches may also include a zener diode connected in parallel with the capacitor between the gate of the normally-on device and the source of the normally-off device. The switches may also include a pair of zener diodes in series opposing arrangement between the gate and source of the normally-off device. Switches comprising multiple normally-on and/or multiple normally-off devices are also described. The normally-on device can be a JFET such as a SiC JFET. The normally-off device can be a MOSFET such as a Si MOSFET. The normally-on device can be a high voltage device and the normally-off device can be a low voltage device. Circuits comprising the switches are also described.
    • 描述了包括常闭半导体器件和共模共栅放大的常规半导体器件的开关。 开关包括连接在常开装置的栅极和常断装置的源之间的电容器。 开关还可以包括在常开器件的栅极和常断器件的源极之间并联连接的齐纳二极管。 这些开关还可以包括一对齐纳二极管,它们在常闭装置的栅极和源极之间相对布置。 还描述了包括多个常开和/或多个常闭设备的开关。 常开器件可以是诸如SiC JFET的JFET。 常关器件可以是诸如Si MOSFET的MOSFET。 常开设备可以是高压设备,常闭设备可以是低电压设备。 还描述了包括开关的电路。
    • 5. 发明申请
    • TRANSMISSION CHANNEL, IN PARTICULAR FOR ULTRASOUND APPLICATIONS
    • 传输通道,特别是超声波应用
    • WO2011079883A1
    • 2011-07-07
    • PCT/EP2010/005932
    • 2010-09-29
    • STMICROELECTRONICS S.R.L.ROSSI, SandroRICOTTI, Giulio
    • ROSSI, SandroRICOTTI, Giulio
    • H03K17/0416H03K17/16H03K17/74B06B1/02
    • H03K17/74B06B1/0215H03K17/04163H03K17/161
    • A transmission channel (1) is described of the type comprising at least one high voltage buffer block (4) comprising buffer transistors (MB1, MB2, MB3, MB4) and respective buffer diodes (DB1, DB2, DB3, DB4), being inserted between respective voltage references (HVPO, HVP1, HVMO, HVM1), these buffer transistors (MB1, MB2, MB3, MB4) being also connected to a clamping block (5), in turn comprising clamping transistors (MC1, MC2) connected to at least one output terminal (HVout) of this transmission channel through diodes (DC1, DC2) connected to prevent the body diodes of the clamping transistors (MC1, MC2) from conducting. Advantageously according to the invention, the transmission channel (1) comprises at least one reset circuit (20) comprising diodes (DME1, DME2, DME3, DME4) and being inserted between circuit nodes (XME1, XME2, XME3, XME4, XC1, XC2) of the high voltage buffer block (4) and of the clamping block (5), these circuit nodes (XME1, XME2, XME3, XME4, XC1, XC2) being in correspondence with conduction terminals of the transistors (MB l, MB2, MB3, MB4; MC1, MC2) comprised into the high voltage buffer block (4) and into the clamping block (5).
    • 描述了包括至少一个包括缓冲晶体管(MB1,MB2,MB3,MB4)和相应的缓冲二极管(DB1,DB2,DB3,DB4)的高压缓冲块(4)的传输通道(1) 在相应的电压基准(HVPO,HVP1,HVMO,HVM1)之间,这些缓冲晶体管(MB1,MB2,MB3,MB4)也连接到钳位块(5),反过来又包括钳位晶体管(MC1,MC2) 所述传输通道的至少一个输出端子(HVout)通过连接的二极管(DC1,DC2),以防止钳位晶体管(MC1,MC2)的体二极管导通。 有利地,根据本发明,传输通道(1)包括至少一个包括二极管(DME1,DME2,DME3,DME4)的复位电路(20),并且插入在电路节点(XME1,XME2,XME3,XME4,XC1,XC2 )和高压缓冲块(4)和钳位块(5)的这些电路节点(XME1,XME2,XME3,XME4,XC1,XC2)与晶体管(MB1,MB2, MB3,MB4; MC1,MC2)组成高压缓冲块(4)并进入夹紧块(5)。
    • 6. 发明申请
    • PRECISION SAMPLING CIRCUIT
    • 精密采样电路
    • WO2007058932A1
    • 2007-05-24
    • PCT/US2006/043764
    • 2006-11-09
    • CAMBRIDGE ANALOG TECHNOLOGY, LLCLEE, Hae-seung
    • LEE, Hae-seung
    • G11C27/02
    • G11C27/024G11C27/026H03K17/161
    • A sampling circuit includes an input voltage source; a first switch having an input operatively connected to the input voltage source; a sampling capacitor operatively connected to an output of the first switch; an operational amplifier having an inverting input operatively connected to the sampling capacitor; a second switch operatively connected across the inverting input of the operational amplifier and an output of the operational amplifier; and a second capacitor operatively connected to the output of the first switch. The first switch has a variable parasitic capacitance, and the second capacitor has a substantially more linear capacitance than the variable parasitic capacitance and is in parallel with the variable parasitic capacitance. A combined variable parasitic capacitance and capacitance of said switch capacitor is more linear than the variable parasitic capacitance of the first switch.
    • 采样电路包括输入电压源; 第一开关,其具有可操作地连接到所述输入电压源的输入; 可操作地连接到所述第一开关的输出的采样电容器; 运算放大器,其具有可操作地连接到采样电容器的反相输入; 操作连接在运算放大器的反相输入端和运算放大器的输出端之间的第二开关; 以及可操作地连接到第一开关的输出的第二电容器。 第一开关具有可变的寄生电容,并且第二电容器具有比可变寄生电容大得多的线性电容,并且与可变寄生电容并联。 所述开关电容器的组合可变寄生电容和电容比第一开关的可变寄生电容更线性。