公开(公告)号：US08575977B1

公开(公告)日：2013-11-05

申请号：US13428912

申请日：2012-03-23

申请人： Justin Jon Philpott ,  Arvind Sherigar ,  Jeffery Chow ,  Ping-Chen Liu

发明人： Justin Jon Philpott ,  Arvind Sherigar ,  Jeffery Chow ,  Ping-Chen Liu

IPC分类号： H03L7/00

CPC分类号： H03K5/2481

摘要： A comparator is disclosed. The comparator includes a mirror circuit that is electrically coupled to a first voltage source and a second voltage source. The first voltage source produces a first voltage and the second voltage source produces a second voltage. The comparator also includes a first positive metal oxide semiconductor (PMOS) transistor electrically coupled to the first voltage source and an output terminal. The first PMOS transistor is biased by the mirror circuit. The comparator also includes a first negative metal oxide semiconductor (NMOS) that is electrically coupled to a ground terminal and the output terminal. The first NMOS transistor is also biased by the mirror circuit. An electrical current flowing across the first NMOS transistor is mirrored from an electrical current flowing through the first PMOS transistor. A method to operate the comparator and a comparator system is also disclosed.

摘要翻译： 公开了一种比较器。 比较器包括电耦合到第一电压源和第二电压源的镜电路。 第一电压源产生第一电压，第二电压源产生第二电压。 比较器还包括电耦合到第一电压源的第一正金属氧化物半导体（PMOS）晶体管和输出端子。 第一个PMOS晶体管被镜像电路偏置。 比较器还包括电耦合到接地端子和输出端子的第一负金属氧化物半导体（NMOS）。 第一个NMOS晶体管也被镜像电路偏置。 流经第一NMOS晶体管的电流与流过第一PMOS晶体管的电流相反。 还公开了一种操作比较器和比较器系统的方法。

公开(公告)号：US09939827B1

公开(公告)日：2018-04-10

申请号：US13328917

申请日：2011-12-16

申请人： Justin Jon Philpott ,  Ping-Chen Liu ,  Ravi Thiruveedhula

发明人： Justin Jon Philpott ,  Ping-Chen Liu ,  Ravi Thiruveedhula

IPC分类号： G05F1/56 ,  G05F3/22 ,  G05F1/00 ,  G05F1/46 ,  H02M1/32 ,  H03M3/00 ,  G01K7/42 ,  G01K3/00 ,  H01L27/02 ,  H02H7/12

CPC分类号： G05F1/56 ,  G01K3/005 ,  G01K7/425 ,  G01K13/00 ,  G05F1/00 ,  G05F1/463 ,  G05F3/225 ,  H01L27/0248 ,  H02H7/1213 ,  H02M1/32 ,  H03M3/322

摘要： An integrated circuit having power supply circuitry configured to generate a temperature dependent power supply voltage is provided. The power supply circuitry may include temperature sensors formed at different regions on the integrated circuit. The power supply circuitry may use a selected one of the temperature sensors to vary the temperature dependent power supply voltage. The power supply circuitry may include voltage clamping circuitry configured to clip the power supply voltage to an upper fixed voltage level when the power supply voltage exceeds a first predetermined threshold and to clip the power supply voltage to a lower fixed voltage level when the power supply voltage falls below a second predetermined threshold. The power supply circuitry may also include voltage overshoot-undershoot protection circuitry configured to keep the temperature dependent power supply voltage within a specified voltage range in the presence of transient perturbations in the temperature dependent power supply voltage.

公开(公告)号：US09069369B1

公开(公告)日：2015-06-30

申请号：US13436660

申请日：2012-03-30

申请人： Ping-Chen Liu ,  Justin Jon Philpott ,  Arvind Sherigar

发明人： Ping-Chen Liu ,  Justin Jon Philpott ,  Arvind Sherigar

IPC分类号： G05F1/00 ,  G05F1/56 ,  G05F1/567

CPC分类号： G05F1/56 ,  G05F1/567

摘要： A voltage regulator is disclosed. The voltage regulator includes an operational amplifier (op-amp) and a voltage trim circuit. The op-amp is operable to receive a reference voltage at a first terminal. The op-amp also includes an output terminal. The voltage trim circuit is coupled between the output terminal and a second terminal of the op-amp. The voltage trim circuit is operable to modify an output voltage to be substantially equivalent with the reference voltage. The modification is performed by selecting an electrical current propagating pathway. An IC and a method to operate the voltage regulator is also disclosed.

摘要翻译： 公开了一种电压调节器。 电压调节器包括运算放大器（运算放大器）和电压调整电路。 运算放大器可操作以在第一端子处接收参考电压。 运算放大器还包括一个输出端子。 电压调整电路耦合在输出端子和运算放大器的第二端子之间。 电压调整电路可操作以将输出电压修改为与参考电压基本相等。 通过选择电流传播路径进行修改。 还公开了一种用于操作电压调节器的IC和方法。