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公开(公告)号：US20240162896A1
公开(公告)日：2024-05-16
申请号：US18512419
申请日：2023-11-17
发明人： Oren Shlomo
IPC分类号： H03K5/1252 , G01K7/18 , G01K7/20 , G01R19/25 , G05F1/648 , G11C7/02 , G11C7/10 , G11C7/14 , G11C7/20 , H03K5/153 , H03K5/19 , H03K5/24 , H03K17/22 , H03K17/24
CPC分类号： H03K5/1252 , G01K7/183 , G01K7/20 , G01R19/2506 , G05F1/648 , G11C7/02 , G11C7/1039 , G11C7/14 , G11C7/20 , H03K5/153 , H03K5/19 , H03K5/2472 , H03K17/223 , H03K17/24
摘要： A resistor network with reduced area and/or improved voltage resolution and methods of designing and operating the same are provided. Generally, the resistor network includes a resistor ladder with a first number (n) of integrated resistors coupled in series between a top and a bottom contact, with one or more contacts coupled between adjacent resistors. A second number of integrated resistors is coupled in parallel between the top and bottom contacts, and a third number of integrated resistors is coupled in series between the second integrated resistors and either the top or the bottom contact. Each of the integrated resistors has a resistance of R, and a voltage developed across each resistor in the resistor ladder is equal to a voltage applied between the top and bottom contacts divided by n. Where the second number is n-1, and the third number is 1, the total number of resistors is 2n.
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公开(公告)号：US08610421B2
公开(公告)日：2013-12-17
申请号：US12976504
申请日：2010-12-22
IPC分类号： G05F1/648
摘要： A current generator includes an op-amp having a negative terminal arranged to be coupled to an input voltage, a resistance selection circuit having at least one tunable resistor connected with each other, and at least one power transistor. A gate of the at least one power transistor is coupled to an output of the op-amp, and a drain of the at least one power transistor is coupled to the at least one tunable resistor or a load. The resistance selection circuit is configured to select a node of the at least one tunable resistor based on the input voltage for coupling from a positive terminal of the op-amp. The at least one tunable resistor is configured to adjust a resistance setting to control a current level of the current generator based on a power supply voltage or a current of a reference resistor.
摘要翻译： 电流发生器包括具有布置为耦合到输入电压的负极端子的运算放大器，具有彼此连接的至少一个可调电阻器的电阻选择电路和至少一个功率晶体管。 所述至少一个功率晶体管的栅极耦合到所述运算放大器的输出，并且所述至少一个功率晶体管的漏极耦合到所述至少一个可调电阻器或负载。 电阻选择电路被配置为基于用于从运算放大器的正极端子耦合的输入电压来选择至少一个可调电阻器的节点。 所述至少一个可调电阻器被配置为基于电源电压或参考电阻器的电流来调整电阻设置以控制电流发生器的电流水平。
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公开(公告)号：US20120161742A1
公开(公告)日：2012-06-28
申请号：US12976504
申请日：2010-12-22
IPC分类号： G05F5/08
摘要： A current generator includes an op-amp having a negative terminal arranged to be coupled to an input voltage, a resistance selection circuit having at least one tunable resistor connected with each other, and at least one power transistor. A gate of the at least one power transistor is coupled to an output of the op-amp, and a drain of the at least one power transistor is coupled to the at least one tunable resistor or a load. The resistance selection circuit is configured to select a node of the at least one tunable resistor based on the input voltage for coupling from a positive terminal of the op-amp. The at least one tunable resistor is configured to adjust a resistance setting to control a current level of the current generator based on a power supply voltage or a current of a reference resistor.
摘要翻译： 电流发生器包括具有布置为耦合到输入电压的负极端子的运算放大器，具有彼此连接的至少一个可调电阻器的电阻选择电路和至少一个功率晶体管。 所述至少一个功率晶体管的栅极耦合到所述运算放大器的输出，并且所述至少一个功率晶体管的漏极耦合到所述至少一个可调电阻器或负载。 电阻选择电路被配置为基于用于从运算放大器的正极端子耦合的输入电压来选择至少一个可调电阻器的节点。 所述至少一个可调电阻器被配置为基于电源电压或参考电阻器的电流来调整电阻设置以控制电流发生器的电流水平。
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公开(公告)号：US5331599A
公开(公告)日：1994-07-19
申请号：US32599
申请日：1993-03-17
申请人： Emilio Yero
发明人： Emilio Yero
摘要： An integrated circuit memory which includes a subcircuit for generating a programmable reference voltages on-chip from an external high-voltage supply line. Depending on the mode of operation (test, read, write, etc.), the reference voltage is changed.
摘要翻译： 一种集成电路存储器，其包括用于从外部高压电源线片上生成可编程参考电压的子电路。 根据操作模式（测试，读取，写入等），参考电压发生变化。
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公开(公告)号：US5175490A
公开(公告)日：1992-12-29
申请号：US863642
申请日：1992-04-03
申请人： Gunter Steinbach
发明人： Gunter Steinbach
摘要： A reference voltage source which provides a plurality of reference voltages with equal step size between voltages despite loads connected to the reference voltage source. The reference voltage source is composed of a plurality of slave resistors connected in series to produce a plurality of output nodes and a plurality of master resistors connected in series to produce a plurality of compensation nodes. Each compensation node corresponds with one of the output nodes. A compensation resistor connects between a compensation node and the corresponding output node. A current flows through the slave resistors to generate a reference voltage at each output node. Another current flows through the master resistors and generates at each compensation node a compensation voltage that differs from the reference voltage at the corresponding output node by a magnitude sufficient to cause a compensation current to flow through the associated compensation resistor into the corresponding output node and offset a load current drawn from the output node by a load connected to the output node.
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公开(公告)号：US2417272A
公开(公告)日：1947-03-11
申请号：US55286744
申请日：1944-09-06
申请人： GEN ELECTRIC
发明人： SHORT THOMAS T
IPC分类号： G05F1/648
CPC分类号： G05F1/648
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公开(公告)号：US1438946A
公开(公告)日：1922-12-19
申请号：US34331819
申请日：1919-12-08
申请人： WESTERN ELECTRIC CO
发明人： CONWAY ROY D
IPC分类号： G05F1/648
CPC分类号： G05F1/648
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公开(公告)号：US1438945A
公开(公告)日：1922-12-19
申请号：US31303319
申请日：1919-07-24
申请人： WESTERN ELECTRIC CO
发明人： CONWAY ROY D
IPC分类号： G05F1/648
CPC分类号： G05F1/648
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公开(公告)号：US1053495A
公开(公告)日：1913-02-18
申请号：US1910598798
申请日：1910-12-22
发明人： HALL JAY H
CPC分类号： H02M3/33507 , G05F1/648 , Y10T307/484
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