公开(公告)号：US20160098909A1

公开(公告)日：2016-04-07

申请号：US14967930

申请日：2015-12-14

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Keith Curtis ,  Paul N. Katz

IPC: G08B17/113

CPC classification number: G08B17/11 ,  G01N27/66 ,  G08B17/113

Abstract: An ion chamber provides a current representative of its characteristics as affected by external conditions, e.g., clean air or smoke. A direct current (DC) voltage is applied to the ion chamber at a first polarity and the resulting current through the ion chamber and parasitic leakage current is measured at the first polarity, then the DC voltage is applied to the ion chamber at a second polarity opposite the first polarity, and the resulting current through the ion chamber and parasitic leakage current is measured at the second polarity. Since substantially no current flows through the ion chamber at the second polarity, the common mode parasitic leakage current contribution may be removed from the total current measurement by subtracting the current measured at the second polarity from the current measured at the first polarity, resulting in just the current through the ion chamber.

Abstract translation: 离子室提供代表其受外部条件（例如清洁空气或烟雾）影响的其特性的电流。 直流（DC）电压以第一极性施加到离子室，并且通过离子室产生的电流和寄生漏电流以第一极性被测量，然后将直流电压以第二极性施加到离子室 与第一极性相反，并且在第二极性处测量通过离子室的所得电流和寄生漏电流。 由于基本上没有电流以第二极性流过离子室，所以可以从总电流测量中去除从第一极性测得的电流以第二极性测量的电流来消除共模寄生漏电流贡献，从而产生正好 电流通过离子室。

公开(公告)号：US09207209B2

公开(公告)日：2015-12-08

申请号：US13667165

申请日：2012-11-02

Applicant: Microchip Technology Incorporated

Inventor： Benjamin T. Cooke ,  Joseph Julicher ,  Keith Edwin Curtis

IPC: G01N27/66 ,  G08B17/11 ,  H03M3/00 ,  G08B29/18

CPC classification number: G01N27/66 ,  G08B17/11 ,  G08B29/181 ,  H03M3/30

Abstract: A smoke detection sensor ion chamber has a leakage current that is dependent upon the permittivity of the ionized gas (air) in the chamber. Smoke from typical fires is mainly composed of unburned carbon that has diffused in the surrounding air and rises with the heat of the fire. The permittivity of the carbon particles is about 10 to 15 times the permittivity of clean air. The addition of the carbon particles into the air in the ion chamber changes the permittivity thereof that is large enough to detect by measuring a change in the leakage current of the ion chamber.

Abstract translation: 烟雾检测传感器离子室具有取决于室中的电离气体（空气）的介电常数的泄漏电流。 典型火灾中的烟雾主要由在周围空气中扩散并随火的升高而升高的未燃碳组成。 碳颗粒的介电常数为清洁空气介电常数的约10至15倍。 将离子室中的碳颗粒添加到空气中通过测量离子室的泄漏电流的变化来改变其介电常数，其大到足以检测。

公开(公告)号：US09195497B2

公开(公告)日：2015-11-24

申请号：US13830377

申请日：2013-03-14

Applicant: Microchip Technology Incorporated

Inventor： Zeke Lundstrum ,  Fanie Duvenhage ,  Sean Steedman ,  Kevin Lee Kilzer ,  Joseph Julicher

IPC: G06F9/30 ,  G06F9/48 ,  G06F9/38

CPC classification number: G06F9/4812 ,  G06F9/30101 ,  G06F9/3012 ,  G06F9/30123 ,  G06F9/30138

Abstract: A microprocessor or microcontroller device may have a central processing unit (CPU), a data memory coupled with the CPU, wherein the data memory is divided into a plurality of memory banks, wherein a bank select register determines which memory bank is currently coupled with the CPU. Furthermore, a first and second set of special function registers are provided, wherein upon occurrence of a context switch either the first or the second set of special function register are selected as active context registers for the CPU and the respective other set of special function registers are selected as inactive context registers, wherein at least some of the registers of the active context registers are memory mapped to more than two memory banks of the data memory and wherein all registers of the inactive context registers are memory mapped to at least one memory location within the data memory.

Abstract translation: 微处理器或微控制器设备可以具有中央处理单元（CPU），与CPU耦合的数据存储器，其中数据存储器被分成多个存储体，其中存储体选择寄存器确定当前与 中央处理器。 此外，提供第一和第二组特殊功能寄存器，其中在上下文切换发生时，第一组或第二组特殊功能寄存器被选择为用于CPU和相应的另一组特殊功能寄存器的活动上下文寄存器 被选择为非活动上下文寄存器，其中活动上下文寄存器的至少一些寄存器被存储器映射到数据存储器的多于两个存储体，并且其中非活动上下文寄存器的所有寄存器被存储器映射到至少一个存储器位置 在数据存储器内。

公开(公告)号：US20150334796A1

公开(公告)日：2015-11-19

申请号：US14714427

申请日：2015-05-18

Applicant: Microchip Technology Incorporated

Inventor： Andreas Reiter ,  Sean Stacy Steedman ,  Lucio Di Jasio ,  Joseph Julicher ,  Yong Yuenyongsgool

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  H05B33/0851

Abstract: In a pulse width modulation light emitting diode (LED) controller an error amplifier and output load switch are synchronously controlled to prevent service life shortening current overshoot through the LEDs and slowing discharging currents causing color temperature shifting in the light output from the LEDs. A plurality of switching arrangements for the error amplifier and the compensation network may be provided in a single integrated circuit LED dimming controller, and outputs for controlling a variety of differently configured output power switch combinations for disconnecting or shorting the LEDs, or disconnecting the output capacitor during off times of the modulated dimming control signal.

Abstract translation: 在脉冲宽度调制发光二极管（LED）控制器中，同步控制误差放大器和输出负载开关，以防止使用寿命缩短LED的电流过冲，并减慢放电电流，从而使LED的光输出发生色温偏移。 可以在单个集成电路LED调光控制器中提供用于误差放大器和补偿网络的多个开关装置，以及用于控制各种不同配置的输出功率开关组合的输出，用于断开LED或短路LED，或者断开输出电容器 在调制调光控制信号的关闭时间。

公开(公告)号：US20140265627A1

公开(公告)日：2014-09-18

申请号：US13841829

申请日：2013-03-15

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： Joseph Julicher ,  Pieter Schieke ,  Vivien Delport

IPC: H02J4/00 ,  H02J7/00

CPC classification number: G06F1/3287 ,  G06F1/3246 ,  G06F13/4022 ,  G06F13/4072 ,  G06F13/4291 ,  H02J4/00 ,  H02J7/00 ,  H02M3/158 ,  H04B3/542 ,  H04B3/548 ,  H04L12/10 ,  Y10T307/74

Abstract: A combined power and input/output system for an electronic device includes a host system; a target system operably coupled to the host system via a combined power and I/O line; and a power boost circuit in the target system for enabling a higher voltage target device.

Abstract translation: 用于电子设备的组合电力和输入/输出系统包括主机系统; 经由组合的电力和I / O线可操作地耦合到主机系统的目标系统; 以及用于使能较高电压目标器件的目标系统中的功率升高电路。

公开(公告)号：US20130162269A1

公开(公告)日：2013-06-27

申请号：US13709399

申请日：2012-12-10

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher

IPC: G01R19/25

CPC classification number: G01R19/25 ,  G01N21/53 ,  G08B17/103 ,  G08B29/24

Abstract: External conditions, e.g., smoke, temperature, humidity, humidity, pressure, flow rate, etc., affects a sensor's characteristics, wherein the sensor provides a current output representative of its characteristics as affected by the external conditions. The current output of the sensor is coupled to a sample and hold capacitor for a precision time period thereby charging the sample and hold capacitor to a voltage proportional to current provided by the sensor over the precision time period. The voltage on the sample and hold capacitor is converted to a digital representation and a determination is made whether the external condition represents an alarm situation, e.g., smoke detected from a fire.

Abstract translation: 外部条件，例如烟雾，温度，湿度，湿度，压力，流速等影响传感器的特性，其中传感器提供代表其受外部条件影响的特性的电流输出。 传感器的电流输出与精密时间段的采样和保持电容耦合，从而将采样和保持电容器充电至与传感器在精确时间周期内提供的电流成正比的电压。 将采样和保持电容器上的电压转换为数字表示，并确定外部条件是否表示报警情况，例如从火灾中检测到的烟雾。

公开(公告)号：US10069488B2

公开(公告)日：2018-09-04

申请号：US14669321

申请日：2015-03-26

Applicant: Microchip Technology Incorporated

Inventor： Sean Stacy Steedman ,  Yong Yuenyongsgool ,  Jacobus Albertus van Eeden ,  Joseph Julicher ,  Marilena Dracea

IPC: H03K4/06 ,  H03K4/50 ,  H03K4/502

Abstract: A digitally controlled ramp generator has a constant current source, a first controllable switch coupled between the constant current source and an output node, a capacitor coupled with the output node, a second controllable switch coupled with the output node, a constant current sink coupled with the second controllable switch, and a control unit. The control unit is configured in a first operating mode to select control signals for the first and second controllable switch to generate a rising waveform by charging said capacitor through the first controllable switch and a falling waveform by discharging the capacitor through the second controllable switch wherein the control signals can be selected from the group of a time based control signal and a voltage based control signal. A variety of other control modes may be provided.

公开(公告)号：US10048089B2

公开(公告)日：2018-08-14

申请号：US14608753

申请日：2015-01-29

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Kevin Kilzer ,  Cobus Van Eeden

IPC: G01D5/26 ,  G01D5/14 ,  G01P3/481 ,  G01P3/489 ,  H03K21/38 ,  H02P23/22 ,  G01P3/486 ,  G01P3/488 ,  H02P6/16 ,  G01D5/245

Abstract: A system may have a digital period divider generating an output signal that is proportional to an angle defined by a rotational input signal and an interval measurement unit determining an interval time of an interval defined by succeeding pulses of the input output signal. In an enhancement, the system may also have a missing pulse detector which is operable to compare a current interval with a parameter to determine whether a pulse is missing in the input signal.

公开(公告)号：US09210769B2

公开(公告)日：2015-12-08

申请号：US13831637

申请日：2013-03-15

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Jerrold S. Zdenek

IPC: H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0818 ,  H05B33/0845 ,  Y02B20/346

Abstract: A light emitting diode (LED) is driven with a plurality of pulses having controllable pulse widths and positions within clock time periods that provide for both LED light intensity control and digital information communications from a single output node of an integrated circuit (IC) device. The LED light intensity is determined by the duty cycle of the pulses where the human eye integrates these light pulses from the LED into continuous light intensity levels. The digital information contained in the light output from the LED is detected by a photo-detector that converts the light pulses into electric signals that are demodulated and read by a circuit debugger and/or manufacturing test station. The aforementioned operations allow continuous visual display and data transmission using only one output node of the IC device. This is especially advantageous when using low pin count IC devices.

Abstract translation: 发光二极管（LED）由具有可控脉冲宽度的脉冲和在时钟周期内的位置驱动，多个脉冲提供来自集成电路（IC）装置的单个输出节点的LED光强度控制和数字信息通信。 LED光强度由人眼将这些光脉冲从LED整合为连续光强度的脉冲的占空比确定。 包含在LED的光输出中的数字信息由光检测器检测，该光检测器将光脉冲转换成由电路调试器和/或制造测试台解调和读取的电信号。 上述操作允许仅使用IC器件的一个输出节点进行连续可视显示和数据传输。 当使用低引脚数IC器件时，这是特别有利的。

公开(公告)号：US08898356B2

公开(公告)日：2014-11-25

申请号：US13841439

申请日：2013-03-15

Applicant: Microchip Technology Incorporated

Inventor： Joseph Julicher ,  Pieter Schieke ,  Vivien Delport

IPC: G06F3/00 ,  G06F13/12 ,  G06F13/38 ,  G06F13/10

CPC classification number: G06F13/10 ,  G06F1/266 ,  G06F13/4072 ,  G06F13/4291 ,  H04B3/542 ,  H04B3/548

Abstract: An electronic device including a host system including a source; and a target system operably coupled to the host system via a combined power I/O line; wherein the target system includes a pass transistor and a switching system cooperative to allow the source to charge a power supply capacitor on the target system via the combined power I/O line in a first mode and alternately charge and discharge the power supply capacitor during a communication via the combined power I/O line in a second mode, wherein the alternately charging and discharging is in synchronization with said communication.

Abstract translation: 一种电子设备，包括：包括源的主机系统; 以及经由组合电力I / O线可操作地耦合到所述主机系统的目标系统; 其中所述目标系统包括传输晶体管和开关系统协作以允许所述源以第一模式经由所述组合功率I / O线对所述目标系统上的电源电容器充电，并且在所述第一模式期间交替地对所述电源电容器进行充电和放电 在第二模式中通过组合电源I / O线进行通信，其中交替充电和放电与所述通信同步。