公开(公告)号：WO2014078625A3

公开(公告)日：2014-07-10

申请号：PCT/US2013070244

申请日：2013-11-15

Applicant: MICROCHIP TECH INC

Inventor： DARMAWASKITA HARTONO ,  STEEDMAN SEAN STACY ,  GROZA CRISTIAN NICOLAE ,  MANCIOIU MARILENA ,  CHARAIS JOHN ROBERT ,  LUNDSTRUM ZEKE

IPC: H03K4/502 ,  H02M3/156 ,  H03K7/08

CPC classification number: H03K7/08 ,  H02M3/156 ,  H03K4/502 ,  H03K6/04

Abstract: A slope compensation module provides slope compensation of a switched-mode power supply using current mode control. The slope control unit comprises a capacitor coupled between an input and an output of the slope control unit, a switch for discharging the capacitor and a constant current source for charging the capacitor. Slope compensation parameters may be changed during operation with a programmable constant current source. The slope compensation module may also function as an analog sawtooth waveform frequency generator, and as an analog pulse width modulation (PWM) generator. Charging the capacitor generates a linearly decreasing (negative slope) ramp voltage for modulating a feedback error voltage into a slope compensated feedback error voltage. Capacitor charging may be controlled from a pulse width modulation signal. Opening of the switch may be programmably delayed, and a minimum closed time thereof may also be programmed during operation of the slope compensation module.

Abstract translation: 坡度补偿模块使用电流模式控制提供开关模式电源的斜率补偿。 斜坡控制单元包括耦合在斜坡控制单元的输入和输出之间的电容器，用于对电容器进行放电的开关和用于对电容器充电的恒流源。 斜坡补偿参数可能在使用可编程恒流源运行时发生变化。 斜坡补偿模块还可以作为模拟锯齿波形频率发生器，并且作为模拟脉宽调制（PWM）发生器。 对电容器充电产生线性递减（负斜率）斜坡电压，用于将反馈误差电压调制成斜率补偿反馈误差电压。 可以从脉宽调制信号来控制电容充电。 可以可编程地延迟开关的打开，并且在斜坡补偿模块的操作期间也可以编程其最小关闭时间。

公开(公告)号：WO0227927A3

公开(公告)日：2003-03-13

申请号：PCT/US0130587

申请日：2001-09-28

Applicant: MICROCHIP TECH INC

Inventor： DARMAWASKITA HARTONO ,  MORENO MIQUEL

IPC: G06F1/32 ,  H03K5/24 ,  G06F15/78 ,  H03F3/72

CPC classification number: G06F1/3243 ,  G06F1/3203 ,  G06F1/325 ,  G06F1/3287 ,  H03K5/24 ,  Y02D10/152 ,  Y02D10/171

Abstract: A comparator is used as a microcontroller peripheral and is programmable for either high-speed or low-power operation. High-speed operation requires higher operating current than the operating current required in the low-power mode, but enables much faster response to changes in input signals. When in the low-power mode, the quiescent current of the comparator circuit is minimal but the response is slower to changing input signals. Current control is used on the first input stage, which affects the current consumption of the subsequent stages. The current consumption is adjusted by switching in and out different current sources for the differential input stage of the comparator.

Abstract translation: 比较器用作单片机外设，可编程为高速或低功耗操作。 高速运行需要比低功耗模式所需的工作电流更高的工作电流，但对输入信号变化的响应更快。 当处于低功耗模式时，比较器电路的静态电流最小，但响应变化较小，以改变输入信号。 在第一输入级使用电流控制，影响后续级的电流消耗。 通过切换比较器的差分输入级的不同电流源来调整电流消耗。

公开(公告)号：WO0246937A3

公开(公告)日：2003-02-13

申请号：PCT/US0146990

申请日：2001-12-06

Applicant: MICROCHIP TECH INC

Inventor： DARMAWASKITA HARTONO ,  EAGAR LAYTON

IPC: G06F15/78 ,  H03K5/24 ,  G06G7/12 ,  G06J1/00

CPC classification number: H03K5/2472 ,  G06F15/7814 ,  Y02D10/12 ,  Y02D10/13

Abstract: A configurable operational amplifier (200) which is programmed to specific characteristics and parameters for various requirements in the measurement of analog signals. These programmable characteristics and parameters are gain bandwidth product (GBWP), selection of operational amplifier (op-amp) or comparator modes of operation, input offset zero calibration, ultra low bias current, rail-to-rail input operation, and rail-to-rail output operation. The configurable operational amplifier (200) is used in combination with a microcontroller system (102), and may be fabricated on an integrated circuit die or in a multi-chip package.

Abstract translation: 可配置运算放大器（200），其被编程为用于测量模拟信号的各种要求的特定特性和参数。 这些可编程特性和参数是增益带宽乘积（GBWP），运算放大器（运算放大器）或比较器工作模式的选择，输入失调零点校准，超低偏置电流，轨到轨输入操作和轨至轨 - 轨道输出操作。 可配置运算放大器（200）与微控制器系统（102）组合使用，并且可以制造在集成电路管芯上或多芯片封装中。

公开(公告)号：EP1010249A4

公开(公告)日：2001-01-10

申请号：EP97949813

申请日：1997-11-29

Applicant: MICROCHIP TECH INC

Inventor： DARMAWASKITA HARTONO ,  NOLAN JAMES B

IPC: G01R27/02 ,  G01R27/26 ,  H03K5/153 ,  H03K5/22

CPC classification number: H03K5/153

Abstract: A direct sensor interface (DSI) module which allows a microcontroller to directly interface to sensors having at least one of a resitive, capacitive, and/or current source characteristic. The DSI module (10) is coupled directly to a sensor device (12), which could be a reference resistor (12), which generates a sensor current (Is). A current mirroring circuit (24) outputs a charging current proportional to the sensor current (Is). A capacitive sensor (14) and/or a capacitive device is coupled to the current mirroring circuit (24) and generates a voltage when charged by the charging current. Using a comparator (16) and a threshold voltage source (nVREF), the time it takes the capacitive sensor (14) and/or a capacitive device to ramp up from zero to the threshold voltage can be measured. The charging time is proportional to the sensor reading.

Abstract translation: 直接传感器接口（DSI）模块，其允许微控制器直接与具有电阻，电容和/或电流源特性中的至少一个的传感器接口。 DSI模块直接耦合到传感器设备，传感器设备可以是参考电阻器，可以产生传感器电流。 电流镜像电路输出与传感器电流成比例的充电电流。 电容式传感器和/或电容性装置耦合到电流镜像电路，并在充电电流充电时产生电压。 使用比较器和阈值电压源，可以测量电容传感器和/或电容器件从零上升到阈值电压所花费的时间。 充电时间与传感器读数成正比。