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    • 72. 发明授权
    • Series regulator circuit
    • 串联调节电路
    • US07737676B2
    • 2010-06-15
    • US12252363
    • 2008-10-16
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • G05F3/16
    • G05F1/56
    • A low drop out series regulator circuit for generating an output voltage that does not rely on voltage feedback or require a capacitor for stable operation includes first and second current sources connected in series between a supply voltage and ground. A resistor is connected between and in series with the first and second current sources, and a reference voltage is generated across the resistor by the current from the first current source. A first transistor is connected between the ground and a first node located between the resistor and the second current source. A current mirror circuit is connected between the supply voltage and the first transistor. A current sense transistor is connected between the current mirror circuit and an output terminal. An output transistor is connected between the supply voltage and the output terminal. The output voltage generated at the output terminal is equal to the reference voltage.
    • 用于产生不依赖于电压反馈或需要用于稳定操作的电容器的输出电压的低压降串联调节器电路包括在电源电压和地之间串联连接的第一和第二电流源。 电阻器连接在第一和第二电流源之间并与之串联,并且通过来自第一电流源的电流在电阻器两端产生参考电压。 第一晶体管连接在接地和位于电阻器和第二电流源之间的第一节点之间。 电源镜电路连接在电源电压和第一晶体管之间。 电流检测晶体管连接在电流镜电路和输出端之间。 输出晶体管连接在电源电压和输出端子之间。 输出端产生的输出电压等于参考电压。
    • 74. 发明授权
    • Series regulator with fold-back over current protection circuit
    • 串联稳压器,具有折回过流保护电路
    • US07710090B1
    • 2010-05-04
    • US12371931
    • 2009-02-17
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • G05F1/569G05F1/571G05F1/573
    • G05F1/5735
    • A series regulator with fold-back over current protection has a high ratio current mirror circuit located between a sense transistor and its voltage output terminal. The series regulator receives an input voltage at an input terminal and generates a stable output voltage at an output terminal. A first amplifier receives a reference voltage. An output transistor is connected between the input terminal and the output terminal and has a gate connected to an output of the first amplifier. A current limiting transistor and the current sense transistor are connected to the input terminal, the output terminal of the first amplifier, and the gate of the output transistor. A voltage divider, connected between the output terminal and ground, generates first and second voltage signals. The first voltage signal is provided to a non-inverting input of the first amplifier. A first current source is connected to the voltage divider and receives the second voltage signal. The current mirror circuit is connected to the current sense transistor, the first current source, and the output terminal. The current mirror circuit returns the sense current to the output terminal and controls the drain-source voltage of the sense transistor.
    • 具有折返过电流保护的串联调节器具有位于感测晶体管及其电压输出端之间的高比率电流镜电路。 串联调节器在输入端接收输入电压,并在输出端产生稳定的输出电压。 第一放大器接收参考电压。 输出晶体管连接在输入端和输出端之间,并具有与第一放大器的输出端连接的栅极。 限流晶体管和电流检测晶体管连接到输入端,第一放大器的输出端和输出晶体管的栅极。 连接在输出端子和地之间的分压器产生第一和第二电压信号。 第一电压信号被提供给第一放大器的非反相输入端。 第一电流源连接到分压器并接收第二电压信号。 电流镜电路连接到电流检测晶体管,第一电流源和输出端。 电流镜电路将感测电流返回到输出端子,并控制感测晶体管的漏 - 源电压。
    • 75. 发明申请
    • SERIES REGULATOR CIRCUIT
    • 系列调节器电路
    • US20100097047A1
    • 2010-04-22
    • US12252363
    • 2008-10-16
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • G05F3/16
    • G05F1/56
    • A low drop out series regulator circuit for generating an output voltage that does not rely on voltage feedback or require a capacitor for stable operation includes first and second current sources connected in series between a supply voltage and ground. A resistor is connected between and in series with the first and second current sources, and a reference voltage is generated across the resistor by the current from the first current source. A first transistor is connected between the ground and a first node located between the resistor and the second current source. A current mirror circuit is connected between the supply voltage and the first transistor. A current sense transistor is connected between the current mirror circuit and an output terminal. An output transistor is connected between the supply voltage and the output terminal. The output voltage generated at the output terminal is equal to the reference voltage.
    • 用于产生不依赖于电压反馈或需要用于稳定操作的电容器的输出电压的低压降串联调节器电路包括在电源电压和地之间串联连接的第一和第二电流源。 电阻器连接在第一和第二电流源之间并与之串联,并且通过来自第一电流源的电流在电阻器两端产生参考电压。 第一晶体管连接在接地和位于电阻器和第二电流源之间的第一节点之间。 电源镜电路连接在电源电压和第一晶体管之间。 电流检测晶体管连接在电流镜电路和输出端之间。 输出晶体管连接在电源电压和输出端子之间。 输出端产生的输出电压等于参考电压。
    • 76. 发明授权
    • Trimming circuit and electronic circuit
    • 微调电路和电子电路
    • US07663470B2
    • 2010-02-16
    • US11403395
    • 2006-04-13
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • H01C10/00
    • H01C10/14H01C10/06
    • A trimming circuit and an electronic circuit that decreases the resistance of an activated transistor while reducing the number of resistors. The trimming circuit includes a plurality of series-connected units. Units for respectively changing adjusting resistances of Runit/2, Runit/4, Runit/8, and Runit/16 are each formed by a transistor, a series-connected resistor circuit, which has resistance Rt and which is connected in series to the transistor, and a parallel-connected resistor circuit, which has resistance Rm and which is connected to the transistor and the series-connected resistor circuit. The resistances Rm and Rt are determined in each unit such that the difference between the resistance Rm when the transistor is off and the resistance of the entire unit when the transistor is on determines the adjusting resistance.
    • 一种微调电路和电子电路,其减少了激活的晶体管的电阻,同时减少了电阻的数量。 微调电路包括多个串联单元。 用于分别改变Runit / 2,Runit / 4,Runit / 8和Runit / 16的调节电阻的单元各自由具有电阻Rt并串联连接到晶体管的串联电阻电路晶体管形成, 以及并联连接的电阻电路,其具有电阻Rm并连接到晶体管和串联电阻电路。 在每个单元中确定电阻Rm和Rt,使得当晶体管截止时的电阻Rm与晶体管导通时整个单元的电阻之间的差异决定了调整电阻。
    • 80. 发明授权
    • Level shifter circuit
    • 电平移位电路
    • US07501876B2
    • 2009-03-10
    • US11873424
    • 2007-10-17
    • Hiroyuki Kimura
    • Hiroyuki Kimura
    • H03L5/00
    • H03K19/018528
    • A level shifter circuit that properly operates even when the power supply voltage is unstable. A level shifter circuit includes a first level shifter unit, a second level shifter unit, and a latch unit. In the first level shifter unit, a transistor is connected to a power supply line to generate drive voltage that is lower than a first power supply voltage. The first level shifter unit outputs complementary signals from the drive voltage. The output of the first level shifter unit is provided to the second level shifter unit. The second level shifter unit converts a complementary signal to a signal having a second power supply voltage. Based on this signal, a signal of the latch unit is switched.
    • 即使在电源电压不稳定的情况下也能适当地动作的电平移位电路。 电平移位器电路包括第一电平移位器单元,第二电平移位器单元和锁存单元。 在第一电平移位器单元中,晶体管连接到电源线以产生低于第一电源电压的驱动电压。 第一电平移位器单元从驱动电压输出互补信号。 第一电平移位器单元的输出被提供给第二电平移位器单元。 第二电平移位器单元将互补信号转换为具有第二电源电压的信号。 基于该信号,切换锁存单元的信号。