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公开(公告)号：US20080218253A1
公开(公告)日：2008-09-11
申请号：US11681067
申请日：2007-03-01
IPC分类号： G05F1/10
摘要： A voltage reference includes a first cell configured to receive a first proportional to absolute temperature (PTAT) current and a second cell configured to receive a second PTAT current. The first cell includes a diode-connected stack of insulated-gate field-effect transistors (IGFETs). The diode-connected stack of IGFETs includes a first transistor that is configured to be biased in a triode weak inversion region. The second cell includes a diode-connected stack of IGFETs and a serially coupled resistor. A magnitude of the second PTAT current is based on a drain-to-source voltage of the first transistor and a value of the serially coupled resistor. The voltage reference provides a reference voltage at a reference node of the second cell based on the second PTAT current.
摘要翻译： 电压基准包括被配置为接收第一与绝对温度（PTAT）成比例的电流的第一单元和被配置为接收第二PTAT电流的第二单元。 第一个单元包括二极管连接的绝缘栅场效应晶体管（IGFET）堆叠。 IGFET的二极管连接的堆叠包括被配置为偏置在三极管弱反转区域中的第一晶体管。 第二单元包括二极管连接的IGFET堆叠和串联电阻器。 第二PTAT电流的大小基于第一晶体管的漏极 - 源极电压和串联电阻器的值。 电压参考基于第二PTAT电流在第二单元的参考节点处提供参考电压。
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公开(公告)号：US20150247893A1
公开(公告)日：2015-09-03
申请号：US14193649
申请日：2014-02-28
申请人： CHRIS C. DAO , STEFANO PIETRI , JUXIANG REN
发明人： CHRIS C. DAO , STEFANO PIETRI , JUXIANG REN
CPC分类号： H03K17/22 , G01R19/16552 , G06F1/24
摘要： A system having a power on reset circuit including a voltage divide), a multiplexer coupled to two outputs of the voltage divider, a first comparator coupled to the multiplexer and a reference, a logic gate coupled to the first comparator, a second comparator coupled to one of the two outputs of the voltage divider, and an emulation gate coupled to the second comparator.
摘要翻译： 一种具有上电复位电路的系统，包括电压除法），耦合到分压器的两个输出的多路复用器，耦合到多路复用器的第一比较器和参考，耦合到第一比较器的逻辑门，耦合到 分压器的两个输出之一，以及耦合到第二比较器的仿真门。
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公开(公告)号：US20150346748A1
公开(公告)日：2015-12-03
申请号：US14287395
申请日：2014-05-27
IPC分类号： G05F1/575
摘要： A semiconductor device including a voltage regulator is disclosed. The voltage regulator may include a multipath amplifier stage, a driver stage coupled to the multipath amplifier stage, a dynamic compensation circuit coupled to the multipath amplifier stage, and a current compensation circuit. The dynamic compensation circuit may be operable to provide a varying level of compensation to the multipath amplifier stage, where the varying level of compensation proportional to a current level associated with the load; and the current compensation circuit may be operable to allow a minimum current level at the driver stage.
摘要翻译： 公开了一种包括电压调节器的半导体器件。 电压调节器可以包括多径放大器级，耦合到多径放大器级的驱动级，耦合到多径放大器级的动态补偿电路和电流补偿电路。 动态补偿电路可以用于向多径放大器级提供变化的补偿电平，其中与负载相关联的当前电平成正比的变化的补偿电平; 并且电流补偿电路可操作以允许在驱动级的最小电流电平。
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公开(公告)号：US20140203794A1
公开(公告)日：2014-07-24
申请号：US13748798
申请日：2013-01-24
申请人： STEFANO PIETRI , Chris C. Dao , Juxiang Ren
发明人： STEFANO PIETRI , Chris C. Dao , Juxiang Ren
IPC分类号： G05F3/02
摘要： A bandgap reference system has a bandgap circuit, an operational transconductance amplifier, and an offset controller. The bandgap circuit includes a pair of diode devices and has a reference terminal at which is provided a bandgap reference voltage. The bandgap circuit provides a differential output having a first output and a second output. The operational transconductance amplifier has a first input coupled to the first output of the bandgap circuit, a second input coupled to the second output of the bandgap reference circuit, and an output coupled to the reference terminal. The offset controller is coupled to the operational transconductance amplifier and to the first and second outputs of the bandgap circuit. The offset controller trims the operational transconductance amplifier as needed to ensure an offset of the operational transconductance amplifier is below a predetermined level.
摘要翻译： 带隙参考系统具有带隙电路，运算跨导放大器和偏移控制器。 带隙电路包括一对二极管器件，并具有参考端子，在该端子处提供带隙基准电压。 带隙电路提供具有第一输出和第二输出的差分输出。 工作跨导放大器具有耦合到带隙电路的第一输出端的第一输入端，耦合到带隙基准电路的第二输出端的第二输入端和耦合到参考端子的输出端。 偏移控制器耦合到工作跨导放大器和带隙电路的第一和第二输出端。 偏移控制器根据需要修整运算跨导放大器，以确保运算跨导放大器的偏移低于预定电平。
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