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1.发明授权Dynamic biasing circuit for a protection stage using low voltage transistors 有权用于使用低压晶体管的保护级的动态偏置电路公开(公告)号：US08604868B2
公开(公告)日：2013-12-10
申请号：US13435210
申请日：2012-03-30
IPC分类号： G05F1/10
CPC分类号： H03K17/102 , H03K3/356113
摘要： A biasing circuit may include an input configured to receive a supply voltage, a value of which is higher than a limit voltage. The biasing circuit may also include a control stage configured to generate first and second control signals with mutually complementary values, equal alternatively to a first value, in a first half-period of a clock signal, or to a second value, in a second half-period of the clock signal. The first and second values may be a function of the supply and limit voltages. The biasing circuit may also include a biasing stage configured to generate a biasing voltage as a function of the values of the first and second control signals. The first and second control signals may control transfer transistors for transferring the supply voltage to respective outputs, while the biasing voltage may be for controlling protection transistors to reduce overvoltages on the transfer transistors.
摘要翻译： 偏置电路可以包括被配置为接收其值高于限制电压的电源电压的输入。 偏置电路还可以包括控制级，其被配置为在时钟信号的第一半个周期中产生第二和第二控制信号，该第一和第二控制信号具有相互互补的值，等于第一个值，或在第二个半个时钟信号中的第二个值 时钟信号的周期。 第一和第二值可以是电源和极限电压的函数。 偏置电路还可以包括被配置为产生作为第一和第二控制信号的值的函数的偏置电压的偏置级。 第一和第二控制信号可以控制用于将电源电压传送到各个输出的转移晶体管，而偏置电压可以用于控制保护晶体管以减小转移晶体管的过电压。
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2.发明授权Circuit for generating a temperature-compensated voltage reference, in particular for applications with supply voltages lower than 1V 有权用于产生温度补偿电压基准的电路，特别是用于电源电压低于1V的应用公开(公告)号：US08120415B2
公开(公告)日：2012-02-21
申请号：US12464481
申请日：2009-05-12
CPC分类号： G05F3/30
摘要： An embodiment of a circuit is described for the generation of a temperature-compensated voltage reference of the type comprising at least one generator circuit of a band-gap voltage, inserted between a first and a second voltage reference and including an operational amplifier, having in turn a first and a second input terminal connected to an input stage connected to these first and second input terminal and comprising at least one pair of a first and a second bipolar transistor for the generation of a first voltage component proportional to the temperature. The circuit also comprises the control block connected to the generator circuit of a band-gap voltage in correspondence with at least one first control node which is supplied with a biasing voltage value comprising at least one voltage component which increases with the temperature for compensating the variations of the base-emitter voltage of the first and second bipolar transistors and ensure the turn-on of a pair of input transistors of the operational amplifier. The circuit has an output terminal suitable for supplying a temperature-compensated voltage value obtained by the sum of the first voltage component proportional to the temperature and of a second component inversely proportional to the temperature.
摘要翻译： 描述了电路的实施例，用于生成包括插入在第一和第二参考电压之间并包括运算放大器的带隙电压的至少一个发生器电路的类型的温度补偿电压基准，其具有 转动连接到与这些第一和第二输入端连接的输入级的第一和第二输入端，并且包括至少一对第一和第二双极晶体管，用于产生与温度成比例的第一电压分量。 该电路还包括与至少一个第一控制节点相对应的带隙电压连接到发生器电路的控制块，该至少一个第一控制节点被提供有包括至少一个电压分量的偏置电压值，所述至少一个电压分量随着用于补偿变化的温度而增加 的第一和第二双极晶体管的基极 - 发射极电压，并确保运算放大器的一对输入晶体管的导通。 电路具有适于提供通过与温度成比例的第一电压分量和与温度成反比的第二分量的和获得的温度补偿电压值的输出端子。
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公开(公告)号：US08704588B2
公开(公告)日：2014-04-22
申请号：US12913658
申请日：2010-10-27
CPC分类号： G05F3/30 , H03F3/347 , H03F3/45183 , H03F2203/45466
摘要： A bandgap voltage reference circuit for generating a bandgap voltage reference. An 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. The circuit further comprises an operational amplifier having a first input coupled to the first circuit element and a second input coupled to the second reference circuit element. The circuit also comprises a control circuit comprising first capacitive element and second capacitive element.
摘要翻译： 一种用于产生带隙电压基准的带隙电压参考电路。 一个实施例包括由第一驱动电压控制的电流发生器，用于根据驱动电压产生第一电流，以及耦合到受控电流发生器的第一参考电路元件，用于接收第一电流并响应于第一电压产生第一参考电压 第一流。 电路还包括用于接收对应于第一电流的第二电流的第二参考电路元件; 所述第二参考电路元件适于响应于第二电流产生第二参考电压。 电路还包括具有耦合到第一电路元件的第一输入和耦合到第二参考电路元件的第二输入的运算放大器。 该电路还包括一个包括第一电容元件和第二电容元件的控制电路。
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公开(公告)号：US08675411B2
公开(公告)日：2014-03-18
申请号：US13170657
申请日：2011-06-28
IPC分类号： G11C11/34
摘要： An electronic device including a set of functional block, and a biasing block for generating a set of bias voltages for the functional blocks. The electronic device further includes a holding block coupled between the biasing block and the functional blocks for providing each bias voltage to at least one corresponding functional block, for each bias voltage the holding block including a capacitive element for storing the bias voltage, and a switch element switchable between an accumulation condition wherein provides the bias voltage from the biasing block to the capacitive element and to the at least one corresponding functional block, and a release condition wherein isolates the capacitive element from the biasing block and provides the bias voltage from the capacitive element to the at least one corresponding functional block, and a control block for alternately switching the switching elements between the accumulation condition and the release condition.
摘要翻译： 一种包括一组功能块的电子设备和用于产生用于功能块的一组偏置电压的偏置块。 该电子设备还包括一个保持块，该保持块耦合在偏置块和功能块之间，用于将每个偏置电压提供给至少一个对应的功能块，对于每个偏置电压，保持块包括用于存储偏置电压的电容元件，以及开关 元件可在其中提供从偏置块到电容元件的偏置电压到至少一个对应的功能块的累积条件之间切换，以及释放条件，其中将电容元件与偏置块隔离并提供来自电容 元件到所述至少一个对应的功能块，以及用于在所述累积条件和所述释放条件之间交替地切换所述开关元件的控制块。
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5.发明申请CIRCUIT FOR GENERATING A TEMPERATURE-COMPENSATED VOLTAGE REFERENCE, IN PARTICULAR FOR APPLICATIONS WITH SUPPLY VOLTAGES LOWER THAN 1V 有权用于产生温度补偿电压参考的电路，特别是用于电压低于1V的应用公开(公告)号：US20090284304A1
公开(公告)日：2009-11-19
申请号：US12464481
申请日：2009-05-12
CPC分类号： G05F3/30
摘要： An embodiment of a circuit is described for the generation of a temperature-compensated voltage reference of the type comprising at least one generator circuit of a band-gap voltage, inserted between a first and a second voltage reference and including an operational amplifier, having in turn a first and a second input terminal connected to an input stage connected to these first and second input terminal and comprising at least one pair of a first and a second bipolar transistor for the generation of a first voltage component proportional to the temperature. The circuit also comprises the control block connected to the generator circuit of a band-gap voltage in correspondence with at least one first control node which is supplied with a biasing voltage value comprising at least one voltage component which increases with the temperature for compensating the variations of the base-emitter voltage of the first and second bipolar transistors and ensure the turn-on of a pair of input transistors of the operational amplifier. The circuit has an output terminal suitable for supplying a temperature-compensated voltage value obtained by the sum of the first voltage component proportional to the temperature and of a second component inversely proportional to the temperature.
摘要翻译： 描述了电路的实施例，用于生成包括插入在第一和第二参考电压之间并包括运算放大器的带隙电压的至少一个发生器电路的类型的温度补偿电压基准，其具有 转动连接到与这些第一和第二输入端连接的输入级的第一和第二输入端，并且包括至少一对第一和第二双极晶体管，用于产生与温度成比例的第一电压分量。 该电路还包括与至少一个第一控制节点相对应的带隙电压连接到发生器电路的控制块，该至少一个第一控制节点被提供有包括至少一个电压分量的偏置电压值，所述至少一个电压分量随着用于补偿变化的温度而增加 的第一和第二双极晶体管的基极 - 发射极电压，并确保运算放大器的一对输入晶体管的导通。 电路具有适于提供通过与温度成比例的第一电压分量和与温度成反比的第二分量的和获得的温度补偿电压值的输出端子。
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6.发明授权Circuit for generating a reference voltage with compensation of the offset voltage 有权用于产生具有补偿偏移电压的参考电压的电路公开(公告)号：US08482342B2
公开(公告)日：2013-07-09
申请号：US12913682
申请日：2010-10-27
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：US20120002473A1
公开(公告)日：2012-01-05
申请号：US13170657
申请日：2011-06-28
IPC分类号： G11C16/10
摘要： An electronic device including a set of functional block, and a biasing block for generating a set of bias voltages for the functional blocks. The electronic device further includes a holding block coupled between the biasing block and the functional blocks for providing each bias voltage to at least one corresponding functional block, for each bias voltage the holding block including a capacitive element for storing the bias voltage, and a switch element switchable between an accumulation condition wherein provides the bias voltage from the biasing block to the capacitive element and to the at least one corresponding functional block, and a release condition wherein isolates the capacitive element from the biasing block and provides the bias voltage from the capacitive element to the at least one corresponding functional block, and a control block for alternately switching the switching elements between the accumulation condition and the release condition.
摘要翻译： 一种包括一组功能块的电子设备和用于产生用于功能块的一组偏置电压的偏置块。 该电子设备还包括一个保持块，该保持块耦合在偏置块和功能块之间，用于将每个偏置电压提供给至少一个对应的功能块，对于每个偏置电压，保持块包括用于存储偏置电压的电容元件，以及开关 元件可在其中提供从偏置块到电容元件的偏置电压到至少一个对应的功能块的累积条件之间切换，以及释放条件，其中将电容元件与偏置块隔离并提供来自电容 元件到所述至少一个对应的功能块，以及用于在所述累积条件和所述释放条件之间交替地切换所述开关元件的控制块。
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