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1.发明申请METHOD FOR GENERATING A REFERENCE CURRENT AND A RELATED FEEDBACK GENERATOR 审中-公开用于产生参考电流的方法和相关的反馈发生器公开(公告)号：US20080001592A1
公开(公告)日：2008-01-03
申请号：US11763679
申请日：2007-06-15
IPC分类号： G05F3/20
CPC分类号： G05F1/46
摘要： A feedback generator of a reference current may include a differential amplifier having a first input for a reference voltage, and a second input for a feedback voltage and generating an output voltage. The feedback generator may also include a first conduction path including a feedback resistor with the feedback voltage applied thereon, and a first transistor controlled by the output voltage and forcing through the feedback resistor the reference current. The feedback generator may also include a second conduction path coupled to the differential amplifier and biasing the differential amplifier based upon the reference current.
摘要翻译： 参考电流的反馈发生器可以包括具有用于参考电压的第一输入和用于反馈电压的第二输入并产生输出电压的差分放大器。 反馈发生器还可以包括第一导电路径，其包括其上施加有反馈电压的反馈电阻器，以及由输出电压控制并通过反馈电阻器施加参考电流的第一晶体管。 反馈发生器还可以包括耦合到差分放大器的第二导电路径，并且基于参考电流偏置差分放大器。
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2.发明申请CIRCUIT FOR GENERATING A REFERENCE VOLTAGE WITH COMPENSATION OF THE OFFSET VOLTAGE 有权用于产生具有补偿偏置电压的参考电压的电路公开(公告)号：US20110102049A1
公开(公告)日：2011-05-05
申请号：US12913682
申请日：2010-10-27
IPC分类号： H03L5/00
CPC分类号： G05F3/30 , H03F3/347 , H03F3/45183 , H03F2203/45466
摘要： An embodiment of a circuit includes first and second branches, an amplifier, a compensation circuit, and a bias unit. The first and second branches are respectively operable to generate first and second currents. The amplifier has a first amplifier input node coupled to the first branch, a second amplifier input node coupled to the second branch, an amplifier output node coupled to the first and second branches, and a first compensation node. The compensation unit is operable to provide a first offset-compensation signal to the first compensation node. And the first bias unit is operable to provide first and second bias signals to the first and second input nodes, respectively, such that the amplifier is operable to cause the first current to approximately equal the second current.
摘要翻译： 电路的一个实施例包括第一和第二分支，放大器，补偿电路和偏置单元。 第一和第二分支分别可操作以产生第一和第二电流。 放大器具有耦合到第一分支的第一放大器输入节点，耦合到第二分支的第二放大器输入节点，耦合到第一和第二分支的放大器输出节点和第一补偿节点。 补偿单元可操作以向第一补偿节点提供第一偏移补偿信号。 并且第一偏置单元可操作以分别向第一和第二输入节点提供第一和第二偏置信号，使得放大器可操作以使第一电流近似等于第二电流。
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公开(公告)号：US20110102058A1
公开(公告)日：2011-05-05
申请号：US12913658
申请日：2010-10-27
CPC分类号： G05F3/30 , H03F3/347 , H03F3/45183 , H03F2203/45466
摘要： An embodiment of a bandgap voltage reference circuit for generating a bandgap voltage reference. Said embodiment comprises a current generator controlled by a first driving voltage for generating a first current depending on the driving voltage, and a first reference circuit element coupled to the controlled current generator for receiving the first current and generating a first reference voltage in response to the first current. The circuit further comprises a second reference circuit element for receiving a second current corresponding to the first current; said second reference circuit element is adapted to generate a second reference voltage in response to the second current. Said circuit further comprises a third reference circuit element for receiving a third current corresponding to the first current and generating the bandgap reference voltage in response to the third current, and an operational amplifier. The operational amplifier has a first input terminal coupled to the first circuit element for receiving a first reference voltage input based on the first reference voltage, a second input terminal coupled to the second reference circuit element for receive a second input voltage based on the second reference voltage and an output terminal coupled to the controlled current generator to provide the first driving voltage to the current generator according to the difference between the first input voltage and the second input voltage. The circuit also comprises a control circuit comprising first capacitive means and second capacitive means. The first capacitive means have a first terminal coupled to the first reference circuit element to receive the first reference voltage and a second terminal coupled to the first input terminal to provide the first input voltage. The second capacitive means comprise a first terminal coupled to the second reference circuit element for receiving the second reference voltage and a second terminal coupled to the second input terminal to provide the second input voltage. The control circuit also comprises biasing means to selectively provide a common-mode voltage to the second terminals of the first and second capacitive means.
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公开(公告)号：US20080278222A1
公开(公告)日：2008-11-13
申请号：US11779631
申请日：2007-07-18
IPC分类号： G05F3/08
CPC分类号： H02M3/073 , H02M2003/077
摘要： A latch-type charge pump circuit is provided having first and second charge pump stages interconnected by an intermediate circuit node. The charge pump circuit includes first pump capacitors respectively coupled between first and second enable terminals and respective first inner circuit nodes, second pump capacitors respectively coupled between the second and first enable terminals and respective second inner circuit nodes, latch transistors coupled between each of the first and second inner circuit nodes and the intermediate circuit node, and a stabilization circuit having at least one stabilization stage coupled between the intermediate circuit node and the first and second enable terminals and connected to control terminals of the latch transistors for supplying them with suitable control signals so as to ensure their correct turn-on and turn-off during a charge sharing period of the charge pump circuit.
摘要翻译： 提供了一种闩锁式电荷泵电路，其具有通过中间电路节点互连的第一和第二电荷泵级。 电荷泵电路包括分别耦合在第一和第二使能端子和相应的第一内部电路节点之间的第一泵电容器，第二泵电容器分别耦合在第二和第一使能端子和相应的第二内部电路节点之间，锁存晶体管耦合在第一 和第二内部电路节点和中间电路节点，以及稳定电路，其具有耦合在中间电路节点与第一和第二使能端子之间的至少一个稳定级并且连接到锁存晶体管的控制端子，以向它们提供合适的控制信号 以确保在电荷泵电路的电荷共享期间其正确的导通和关断。
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公开(公告)号：US20120274382A1
公开(公告)日：2012-11-01
申请号：US13435262
申请日：2012-03-30
CPC分类号： H03K17/102 , H03K3/356113
摘要： A level-shifter circuit may include a pair of inputs which receive a first and a second low-voltage phase signal having a first voltage dynamic with a first maximum value. The level-shifter circuit may also include a pair of outputs which supply a first high-voltage phase signal and a second high-voltage phase signal, level-shifted with respect to the low-voltage signals and having a second voltage dynamic with a second maximum value, higher than the first maximum value. The level-shifter circuit may further include transfer transistors coupled between one of a first reference terminal and a second reference terminal, which are set at one of a first reference voltage and a second reference voltage, and the first output or second output. Protection elements may be coupled to a respective transfer transistor to protect from overvoltages between at least one of the corresponding conduction terminals and control terminals.
摘要翻译： 电平移动器电路可以包括一对输入，其接收具有第一最大值的具有第一电压动态的第一和第二低电压相位信号。 电平移位器电路还可以包括一对输出，其提供相对于低电压信号电平移位的第一高电压相位信号和第二高电压相位信号，并且具有第二电压动态的第二高电压相位信号 最大值，高于第一个最大值。 电平移位器电路还可以包括耦合在第一参考端子和第二参考端子之一中的传输晶体管，其被设置为第一参考电压和第二参考电压之一以及第一输出或第二输出。 保护元件可以耦合到相应的传输晶体管以防止在相应的导电端子和控制端子中的至少一个之间的过电压。
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公开(公告)号：US20120218837A1
公开(公告)日：2012-08-30
申请号：US13405619
申请日：2012-02-27
CPC分类号： G05F1/575 , Y10T29/49117
摘要： A voltage regulator may include an input terminal for receiving an input voltage and an output terminal for providing a respective output voltage, a regulation transistor having a first conduction terminal coupled to the input terminal for receiving the input voltage, a second conduction terminal coupled to the output terminal, and a control terminal coupled to the output of a first operational amplifier. The first operational amplifier may have a non-inverting input terminal for receiving a first reference voltage, and an inverting input terminal coupled to a first terminal of a divider circuit for receiving a second reference voltage.
摘要翻译： 电压调节器可以包括用于接收输入电压的输入端子和用于提供相应输出电压的输出端子;调节晶体管，其具有耦合到输入端子的第一导电端子用于接收输入电压;第二导通端子， 输出端子和耦合到第一运算放大器的输出端的控制端子。 第一运算放大器可以具有用于接收第一参考电压的非反相输入端子，以及耦合到用于接收第二参考电压的除法器电路的第一端子的反相输入端子。
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