Differential amplifier with offset voltage trimming
    71.
    发明授权
    Differential amplifier with offset voltage trimming 有权
    差分放大器,具有失调电压调整

    公开(公告)号:US07956679B2

    公开(公告)日:2011-06-07

    申请号:US12511076

    申请日:2009-07-29

    申请人: Hiroyuki Kimura

    发明人: Hiroyuki Kimura

    IPC分类号: H03F1/02

    摘要: A differential amplifier that has a current supply and a differential current to voltage converter with a positive current input node, a negative current input node and a voltage output node, has offset voltage trimming. The voltage output node provides an output voltage that is proportional to the difference in current values flowing into the positive current input node and a negative current input node. A trimming circuit has a plurality of trimming control inputs, an inverting trimming output, a non-inverting trimming output and trimming inputs coupled to the current supply. Trimming resistances couple the inverting trimming output to the non-inverting trimming output. Trimming selectors, controllable by a trim code provided to the trimming control inputs, provide for selectively connecting the current supply directly to the non-inverting trimming output while selectively connecting the current supply to the inverting trimming output through a first selected group of the trimming resistances. The differential amplifier also has a differential transistor pair formed by an inverting transistor that couples the inverting trimming output to the positive current input node and a non-inverting transistor that couples the non-inverting trimming output to the negative current input node.

    摘要翻译: 具有电流源的差分放大器和具有正电流输入节点,负电流输入节点和电压输出节点的差分电流至电压转换器具有偏移电压调整。 电压输出节点提供与流入正电流输入节点和负电流输入节点的电流值的差成比例的输出电压。 修整电路具有多个微调控制输入,反相微调输出,非反相微调输出和耦合到电流源的微调输入。 微调电阻将反相微调输出耦合到非反相微调输出。 可通过提供给微调控制输入的修剪代码控制的微调选择器提供选择性地将电流源直接连接到非反相微调输出,同时通过第一选定组的微调电阻选择性地将电流供给到反相微调输出 。 差分放大器还具有由反相晶体管形成的差分晶体管对,其将反相微调输出耦合到正电流输入节点,以及将非反相微调输出耦合到负电流输入节点的非反相晶体管。

    Series regulator circuit
    73.
    发明授权
    Series regulator circuit 有权
    串联调节电路

    公开(公告)号:US07737676B2

    公开(公告)日:2010-06-15

    申请号:US12252363

    申请日:2008-10-16

    申请人: Hiroyuki Kimura

    发明人: Hiroyuki Kimura

    IPC分类号: G05F3/16

    CPC分类号: G05F1/56

    摘要: 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.

    摘要翻译: 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。

    Series regulator with fold-back over current protection circuit
    75.
    发明授权
    Series regulator with fold-back over current protection circuit 有权
    串联稳压器,具有折回过流保护电路

    公开(公告)号:US07710090B1

    公开(公告)日:2010-05-04

    申请号:US12371931

    申请日:2009-02-17

    申请人: Hiroyuki Kimura

    发明人: Hiroyuki Kimura

    IPC分类号: G05F1/569 G05F1/571 G05F1/573

    CPC分类号: G05F1/5735

    摘要: 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.

    摘要翻译: 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。

    SERIES REGULATOR CIRCUIT
    76.
    发明申请
    SERIES REGULATOR CIRCUIT 有权
    系列调节器电路

    公开(公告)号:US20100097047A1

    公开(公告)日:2010-04-22

    申请号:US12252363

    申请日:2008-10-16

    申请人: Hiroyuki Kimura

    发明人: Hiroyuki Kimura

    IPC分类号: G05F3/16

    CPC分类号: G05F1/56

    摘要: 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.

    摘要翻译: 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。

    Trimming circuit and electronic circuit
    77.
    发明授权
    Trimming circuit and electronic circuit 有权
    微调电路和电子电路

    公开(公告)号:US07663470B2

    公开(公告)日:2010-02-16

    申请号:US11403395

    申请日:2006-04-13

    申请人: Hiroyuki Kimura

    发明人: Hiroyuki Kimura

    IPC分类号: H01C10/00

    CPC分类号: H01C10/14 H01C10/06

    摘要: 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.

    摘要翻译: 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。

    SUBSTITUTED PYRAZOLO[1,5-A]PYRIMIDINES AS CALCIUM RECEPTOR MODULATING AGENTS
    80.
    发明申请
    SUBSTITUTED PYRAZOLO[1,5-A]PYRIMIDINES AS CALCIUM RECEPTOR MODULATING AGENTS 审中-公开
    作为钙受体调节剂的取代的吡唑并[1,5-A]嘧啶

    公开(公告)号:US20090215746A1

    公开(公告)日:2009-08-27

    申请号:US12263426

    申请日:2008-10-31

    CPC分类号: C07D487/04

    摘要: There is provided a calcium receptor modulator comprising a compound of the formula (I): wherein ring A is an optionally substituted 5- to 7-membered ring; ring B is an optionally substituted 5- to 7-membered heterocyclic ring; X1 is CR1, CR1R2, N or NR13; X2 is N or NR3; Y is C, CR4 or N, Z is CR5, CR5R6, N or NR7; Ar is an optionally substituted cyclic group; R is H, an optionally substituted hydrocarbon group, etc.; and is a single bond or a double bond; R1, R2, R3, R4, R5, R6, R7 and R13 are independently H, an optionally substituted hydrocarbon group; or a salt thereof or a prodrug thereof. Compounds of the formula (II) and (III): wherein ring A is an optionally substituted 5- to 7-membered ring; Q is C, CR5 or N; R8, R9, R10, R11 and R12 are independently, H, an optionally substituted hydrocarbon group, etc., or a salt thereof are also provided.Also specify X1, R3, R1, Y and X3 in formula (II) and (III) as before.

    摘要翻译: 提供了包含式(I)化合物的钙受体调节剂:其中环A是任选取代的5至7元环; 环B是任选取代的5-至7-元杂环; X1是CR1,CR1R2,N或NR13; X2是N或NR3; Y为C,CR4或N,Z为CR5,CR5R6,N或NR7; Ar是任选取代的环状基团; R为H,任选取代的烃基等; < img id =“CUSTOM-CHARACTER-00001”he =“3.13mm”wi =“8.47mm”file =“US20090215746A1-20090827-P00001.TIF”img-content =“character”img-format =“tif”/ >是单键或双键; R 1,R 2,R 3,R 4,R 5,R 6,R 7和R 13独立地为H,任选取代的烃基; 或其盐或其前药。 式(II)和(III)的化合物:其中环A是任选取代的5-至7-元环; Q为C,CR5或N; R8,R9,R10,R11和R12独立地为氢,任选取代的烃基等,或其盐。 也如前所述,在式(II)和(III)中指定X1,R3,R1,Y和X3。