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1.发明申请HIGH VOLTAGE LINEAR AMPLIFIER DRIVING HEAVY CAPACITIVE LOADS WITH REDUCED POWER DISSIPATION 有权具有降低功耗的高压线性放大器驱动重型负载公开(公告)号：US20130162307A1
公开(公告)日：2013-06-27
申请号：US13692636
申请日：2012-12-03
Applicant: Cirrus Logic, Inc.
Inventor： Anindya Bhattacharya , John Melanson
IPC: H03K5/12
CPC classification number: B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/04581 , H03K4/063 , H03K5/12
Abstract: A capacitive load drive circuit may comprise a high current drive amplifier configured to be coupled to a capacitive load during a high current ramp up of the voltage across the capacitive load to a cut off voltage; a low current drive amplifier configured to be connected to the capacitive load during a low current ramp up of the voltage across the capacitive load, from the cut off voltage to a maximum voltage across the capacitive load; and the high current drive amplifier configured to be connected to the capacitive load during a high current ramp down of the voltage across the capacitive load. The low current drive amplifier may be connected to the capacitive load during a period of steady state of the voltage across the capacitive load, intermediate the low current ramp up and the high current ramp down.
Abstract translation: 容性负载驱动电路可以包括高电流驱动放大器，其被配置为在跨过容性负载的电压的高电流斜坡上升到截止电压时耦合到电容性负载; 低电流驱动放大器被配置为在跨过容性负载的电压的低电流斜升期间从截止电压到跨过容性负载的最大电压连接到电容性负载; 以及高电流驱动放大器，被配置为在跨过容性负载的电压的高电流斜降期间连接到电容性负载。 在电容负载两端的电压稳定期间，低电流驱动放大器可以连接到电容性负载，低电平斜坡上升和高电流斜坡下降。
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2.发明授权公开(公告)号：US10571484B2
公开(公告)日：2020-02-25
申请号：US14686834
申请日：2015-04-15
Applicant: Cirrus Logic, Inc.
Inventor： John L. Melanson , Anindya Bhattacharya , Roderick D. Holley , Ruoxin Jiang , Stephen T. Hodapp , John C. Tucker
IPC: G01P15/125
Abstract: In accordance with embodiments of the present disclosure, an apparatus for measuring acceleration may include a spring-mounted mass, a positional encoder configured to measure a position of the spring-mounted mass and output one or more signals indicative of a sine and a cosine of the position, a driver to set and maintain an oscillation of the spring-mounted mass, and a decoder configured to process the one or more signals to calculate an acceleration of the spring-mounted mass.
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Patent Agency Ranking
3.发明授权公开(公告)号：US10036670B2
公开(公告)日：2018-07-31
申请号：US15162325
申请日：2016-05-23
Applicant: CIRRUS LOGIC, INC.
Inventor： Anindya Bhattacharya , Tim Green , Jing Bai
Abstract: A peak junction temperature monitoring system for a semiconductor device includes a peak power dissipation sensor for sensing the peak power dissipation in the device. A temperature sensor senses an average temperature of the device, and a peak junction temperature computation circuit generates a signal representative of a peak junction temperature based on input from the peak power dissipation sensor and the temperature sensor.
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4.发明申请公开(公告)号：US20160320246A1
公开(公告)日：2016-11-03
申请号：US15162325
申请日：2016-05-23
Applicant: CIRRUS LOGIC, INC.
Inventor： Anindya Bhattacharya , Tim Green , Jing Bai
Abstract: A peak junction temperature monitoring system for a semiconductor device includes a peak power dissipation sensor for sensing the peak power dissipation in the device. A temperature sensor senses an average temperature of the device, and a peak junction temperature computation circuit generates a signal representative of a peak junction temperature based on input from the peak power dissipation sensor and the temperature sensor.
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5.发明申请SYSTEMS AND METHODS FOR DETERMINING ACCELERATION BASED ON PHASE DEMODULATION OF AN ELECTRICAL SIGNAL 审中-公开基于电信号相位解调的确定加速度的系统和方法公开(公告)号：US20150301077A1
公开(公告)日：2015-10-22
申请号：US14686834
申请日：2015-04-15
Applicant: Cirrus Logic, Inc.
Inventor： John L. Melanson , Anindya Bhattacharya , Roderick D. Holley , Ruoxin Jiang , Stephen T. Hodapp , John C. Tucker
IPC: G01P15/125
CPC classification number: G01P15/125
Abstract: In accordance with embodiments of the present disclosure, an apparatus for measuring acceleration may include a spring-mounted mass, a positional encoder configured to measure a position of the spring-mounted mass and output one or more signals indicative of a sine and a cosine of the position, a driver to set and maintain an oscillation of the spring-mounted mass, and a decoder configured to process the one or more signals to calculate an acceleration of the spring-mounted mass.
Abstract translation: 根据本公开的实施例，用于测量加速度的装置可以包括弹簧安装的质量块，位置编码器被配置为测量弹簧安装质量块的位置，并输出一个或多个指示正弦和余弦的信号 所述位置，设置和保持所述弹簧安装的质量的振荡的驱动器，以及被配置为处理所述一个或多个信号以计算所述弹簧安装的质量块的加速度的解码器。
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公开(公告)号：US09150010B1
公开(公告)日：2015-10-06
申请号：US14071346
申请日：2013-11-04
Applicant: CIRRUS LOGIC, INC.
Inventor： Anindya Bhattacharya , John Melanson
CPC classification number: B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/04581 , H03K4/063 , H03K5/12
Abstract: A system and method for charging heavy capacitive loads may comprise an n-stage stacked charging circuit wherein n is an integer greater than or equal to 2 and wherein the n-stage stacked charging circuit may comprise n−1 capacitors and a voltage supply, each sequentially electrically connected to the capacitive load in an order through a respective first through nth switch during a respective first through nth charging time period; the n−1th capacitors each sequentially electrically connected to the capacitive load in reverse order during a first through n−1th discharging time period through the respective n−1th through first switches. The system and method may comprise an n+1th switch electrically connecting the capacitive load to ground during an nth discharging period. The capacitive load may comprise a piezoelectric element, which may comprise an inkjet printer head inkjet actuator.
Abstract translation: 用于对重电容性负载进行充电的系统和方法可以包括n级堆叠充电电路，其中n是大于或等于2的整数，并且其中n级堆叠充电电路可以包括n-1个电容器和电压源 在相应的第一至第n充电时间段期间，通过相应的第一至第N开关按顺序电连接到电容性负载; 在第一到第n-1放电时间段期间，第n-1个电容器通过相应的第n-1个至第一开关以相反顺序电连接到电容性负载。 该系统和方法可以包括在第n个放电周期期间将电容性负载电连接到地的第n + 1开关。 电容性负载可以包括压电元件，其可以包括喷墨打印头喷墨致动器。
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7.发明授权High voltage linear amplifier driving heavy capacitive loads with reduced power dissipation 有权高电压线性放大器驱动大容量负载，降低功耗公开(公告)号：US08717071B2
公开(公告)日：2014-05-06
申请号：US13692636
申请日：2012-12-03
Applicant: Cirrus Logic, Inc.
Inventor： Anindya Bhattacharya , John Melanson
CPC classification number: B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/04581 , H03K4/063 , H03K5/12
Abstract: A capacitive load drive circuit may comprise a high current drive amplifier configured to be coupled to a capacitive load during a high current ramp up of the voltage across the capacitive load to a cut off voltage; a low current drive amplifier configured to be connected to the capacitive load during a low current ramp up of the voltage across the capacitive load, from the cut off voltage to a maximum voltage across the capacitive load; and the high current drive amplifier configured to be connected to the capacitive load during a high current ramp down of the voltage across the capacitive load. The low current drive amplifier may be connected to the capacitive load during a period of steady state of the voltage across the capacitive load, intermediate the low current ramp up and the high current ramp down.
Abstract translation: 容性负载驱动电路可以包括高电流驱动放大器，其被配置为在跨过容性负载的电压的高电流斜坡上升到截止电压时耦合到电容性负载; 低电流驱动放大器被配置为在跨过容性负载的电压的低电流斜升期间从截止电压到跨过容性负载的最大电压连接到电容性负载; 以及高电流驱动放大器，被配置为在跨过容性负载的电压的高电流斜降期间连接到电容性负载。 在电容负载两端的电压稳定期间，低电流驱动放大器可以连接到电容性负载，低电平斜坡上升和高电流斜坡下降。
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