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    • 2. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US07372245B2
    • 2008-05-13
    • US11727559
    • 2007-03-27
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiTadashi Kameyama
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiTadashi Kameyama
    • G05F3/16G05F3/20
    • G05F3/222
    • A difference between both emitter voltages of a first transistor having an emitter through which a first current flows, and at least one second transistor having an emitter through which such a second current as to reach a current density thereof smaller than that of the emitter of the first transistor flows, is applied across a first resistor. A second resistor is provided between the emitter of the second transistor and a circuit's ground potential. A third resistor and a fourth resistor are respectively provided between collectors of the first and second transistors and a power supply voltage. Such an output voltage that a collector voltage of the first transistor and a collector voltage of the second transistor become equal is formed in response to the collector voltage of the first transistor and the collector voltage of the second transistor and supplied to bases of the first and second transistors in common. A temperature sense voltage is formed from a connecting point of the first and second resistors.
    • 具有第一电流流经的发射极的第一晶体管的两个发射极电压和至少一个具有发射极的第二晶体管之间的差异,通过该发射极,这样的第二电流达到其电流密度小于 第一晶体管流过第一电阻器。 第二电阻器设置在第二晶体管的发射极和电路的地电位之间。 分别在第一和第二晶体管的集电极之间设置第三电阻器和第四电阻器,以及电源电压。 响应于第一晶体管的集电极电压和第二晶体管的集电极电压而形成第一晶体管的集电极电压和第二晶体管的集电极电压相等的这种输出电压,并被提供给第一晶体管的基极和 第二个晶体管是共同的。 温度感测电压由第一和第二电阻器的连接点形成。
    • 4. 发明申请
    • Semicondustor device
    • 半导体器件
    • US20060235630A1
    • 2006-10-19
    • US11401977
    • 2006-04-12
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiToyohiro Shimogawa
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiToyohiro Shimogawa
    • G06F19/00
    • G06F1/3203G06F1/3287Y02D10/171
    • The present invention provides a semiconductor device capable of realizing power saving and improvement in reliability or reduction in area. A semiconductor device includes: a power switch connecting an internal power supply in which power is not shut down and an internal power supply in which power is shut down; and an internal voltage determining circuit for determining voltage of the internal power supply in which power is shut down. Voltage of the internal power supply in which power is shut down is generated from voltage of an external power supply by using a regulator circuit. When the power of the internal power supply is interrupted, the power switch is turned off, the regulator circuit is turned off, and an output of the regulator circuit is shorted to a ground potential. When the power of the internal power supply is resumed, the regulator circuit is turned on, shorting is cancelled, the increased voltage of the internal power supply is determined by the internal voltage determining circuit, operation of a circuit block is started, and the switch is turned on.
    • 本发明提供一种半导体装置,其能够实现节电,提高可靠性或减小面积。 一种半导体装置,包括:连接不断电的内部电源的电源开关和断电的内部电源; 以及用于确定电源关闭的内部电源的电压的内部电压确定电路。 通过使用调节电路从外部电源的电压产生关闭电源的内部电源的电压。 当内部电源的电源中断时,电源开关关闭,调节器电路关闭,调节器电路的输出短路到地电位。 当恢复内部电源的电源时,调节器电路接通,短路被取消,内部电源的增加的电压由内部电压确定电路确定,电路块的操作开始,开关 打开
    • 5. 发明申请
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US20060220634A1
    • 2006-10-05
    • US11390276
    • 2006-03-28
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiTadashi Kameyama
    • Takayasu ItoMitsuru HirakiMasashi HoriguchiTadashi Kameyama
    • G05F3/16
    • G05F3/222
    • A difference between both emitter voltages of a first transistor having an emitter through which a first current flows, and at least one second transistor having an emitter through which such a second current as to reach a current density thereof smaller than that of the emitter of the first transistor flows, is applied across a first resistor. A second resistor is provided between the emitter of the second transistor and a circuit's ground potential. A third resistor and a fourth resistor are respectively provided between collectors of the first and second transistors and a power supply voltage. Such an output voltage that a collector voltage of the first transistor and a collector voltage of the second transistor become equal is formed in response to the collector voltage of the first transistor and the collector voltage of the second transistor and supplied to bases of the first and second transistors in common. A temperature sense voltage is formed from a connecting point of the first and second resistors.
    • 具有第一电流流经的发射极的第一晶体管的两个发射极电压和至少一个具有发射极的第二晶体管之间的差异,通过该发射极,这样的第二电流达到其电流密度小于 第一晶体管流过第一电阻器。 第二电阻器设置在第二晶体管的发射极和电路的地电位之间。 分别在第一和第二晶体管的集电极之间设置第三电阻器和第四电阻器,以及电源电压。 响应于第一晶体管的集电极电压和第二晶体管的集电极电压而形成第一晶体管的集电极电压和第二晶体管的集电极电压相等的这种输出电压,并被提供给第一晶体管的基极和 第二个晶体管是共同的。 温度感测电压由第一和第二电阻器的连接点形成。
    • 7. 发明授权
    • Semiconductor integrated circuit with different operational current modes
    • 具有不同工作电流模式的半导体集成电路
    • US06667603B2
    • 2003-12-23
    • US10247521
    • 2002-09-20
    • Mitsuru HirakiTakayasu Ito
    • Mitsuru HirakiTakayasu Ito
    • G05F159
    • H02M3/155G06F1/26G06F1/32H02M2001/0032H02M2001/0045Y02B70/16Y10T307/696
    • For an internal circuit having a first operation mode consuming a first operational current and a second operation mode consuming a second operational current, which is smaller than the first operational current, a first power source regulator for stepping down a predefined output power supply voltage from an input power supply voltage and having a current supply ability corresponding to the first operational current of the internal circuit and a second power source gulator having a current supply ability corresponding to the second operational current are combined in order to, under the control of a power supply control unit, operate the first step-down type regulator in response to a first control signal instructing the first operation mode in the internal circuit and to operate the second step-down type regulator in response to a second control signal instructing the second operation mode. In this case, the internal circuit and power supply control unit are provided in one semiconductor integrated circuit device so that reduced power consumption and power supply switching in accordance with the operation mode can be achieved.
    • 对于具有消耗第一操作电流的第一操作模式和消耗小于第一工作电流的第二工作电流的第二操作模式的内部电路,用于从第一操作电流降低预定义的输出电源电压的第一电源调节器 输入电源电压并具有与内部电路的第一工作电流相对应的电流供应能力和具有与第二工作电流相对应的电流供应能力的第二电源模拟器,以便在电源的控制下 控制单元,响应于指示内部电路中的第一操作模式的第一控制信号操作第一降压型稳压器,并且响应于指示第二操作模式的第二控制信号来操作第二降压型稳压器。 在这种情况下,内部电路和电源控制单元设置在一个半导体集成电路装置中,从而可以实现根据操作模式的降低的功耗和电源切换。
    • 9. 发明申请
    • SEMICONDUCTOR INTEGRATED CIRCUIT
    • 半导体集成电路
    • US20090039846A1
    • 2009-02-12
    • US12251519
    • 2008-10-15
    • Takayasu ItoMitsuru HirakiSatoshi BabaKenichi Fukui
    • Takayasu ItoMitsuru HirakiSatoshi BabaKenichi Fukui
    • G05F1/565
    • H03K17/22H03K17/163
    • In order to set with a high precision the value of rush current flowing in the power switch circuit at the time of turning “on” the power, the internal circuit Int_Cir of the LSI is supplied with the internal source voltage Vint from the output transistor MP1 of the regulator VReg of the power switch circuit PSWC. The power switch circuit PSWC includes a control circuit CNTRLR and a start-up circuit STC. During the initial period Tint following the turning “on” of the power supply, the start-up circuit STC controls the output transistor MP1 and reduces the primary rush current so that the output current Isup of the output transistor MP1 may represent an approximately constant increment as the time passes. The difference ΔV between the internal current voltage due to the charge of load capacitance C with the output current Isup controlled by the start-up circuit STC and the current voltage Vint from the regulator VReg is set within the predetermined limit to reduce the secondary rush current.
    • 为了高精度地设定在接通电源时在功率开关电路中流动的冲击电流的值,LSI的内部电路Int_Cir从输出晶体管MP1被提供内部源极电压Vint 的稳压器VReg的电源开关电路PSWC。 电源开关电路PSWC包括控制电路CNTRLR和启动电路STC。 在电源的“接通”之后的初始时段期间,启动电路STC控制输出晶体管MP1并降低初级冲击电流,使得输出晶体管MP1的输出电流Isup可以表示近似恒定的增量 随着时间的流逝。 由负载电容C的内部电流电压与由启动电路STC控制的输出电流Isup和来自调节器VReg的当前电压Vint之间的差值DeltaV设定在预定极限内,以减小二次冲击电流 。
    • 10. 发明申请
    • SEMICONDUCTOR DEVICE
    • 半导体器件
    • US20080228414A1
    • 2008-09-18
    • US12122715
    • 2008-05-18
    • Takayasu ITOMitsuru HirakiMasashi HoriguchiToyohiro Shimogawa
    • Takayasu ITOMitsuru HirakiMasashi HoriguchiToyohiro Shimogawa
    • G06F19/00
    • G06F1/3203G06F1/3287Y02D10/171
    • The present invention provides a semiconductor device capable of realizing power saving and improvement in reliability or reduction in area. A semiconductor device includes: a power switch connecting an internal power supply in which power is not shut down and an internal power supply in which power is shut down; and an internal voltage determining circuit for determining voltage of the internal power supply in which power is shut down. Voltage of the internal power supply in which power is shut down is generated from voltage of an external power supply by using a regulator circuit. When the power of the internal power supply is interrupted, the power switch is turned off, the regulator circuit is turned off, and an output of the regulator circuit is shorted to a ground potential. When the power of the internal power supply is resumed, the regulator circuit is turned on, shorting is cancelled, the increased voltage of the internal power supply is determined by the internal voltage determining circuit, operation of a circuit block is started, and the switch is turned on.
    • 本发明提供一种半导体装置,其能够实现节电,提高可靠性或减小面积。 一种半导体装置,包括:连接不断电的内部电源的电源开关和断电的内部电源; 以及用于确定电源关闭的内部电源的电压的内部电压确定电路。 通过使用调节电路从外部电源的电压产生关闭电源的内部电源的电压。 当内部电源的电源中断时,电源开关关闭,调节器电路关闭,调节器电路的输出短路到地电位。 当恢复内部电源的电源时,调节器电路接通,短路被取消,内部电源的增加的电压由内部电压确定电路确定,电路块的操作开始,开关 打开