公开(公告)号：US20160078842A1

公开(公告)日：2016-03-17

申请号：US14726176

申请日：2015-05-29

Applicant: Pixtronix, Inc.

Inventor： Didier Henri Farenc ,  Paul Penchin Pan

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G3/00 ,  G09G3/3433 ,  G09G3/3486 ,  G09G2310/0213 ,  G09G2310/0221 ,  G09G2330/025 ,  G09G2330/028 ,  H02M1/15 ,  H02M3/156 ,  H02M2001/0025 ,  H02M2001/0035 ,  H02M2003/1566 ,  H05B33/0815 ,  H05B33/0842 ,  Y02B70/16

Abstract: This disclosure provides systems, methods and apparatus for a power supply module capable of providing power to a display apparatus. In one aspect, the power supply module can include a power supply controller that is capable executing commutation cycles, where each commutation cycle includes energizing an inductor for a first time period and then allowing the energized inductor to supply power to the display apparatus for a second time period. The power supply module can operate in active-high and active-low states, in which the power supply module executes commutation cycles, and a suspend state, in which no commutation cycles are executed. The power supply module transitions between these states based in part on the value of the output voltage. A peak current value is varied such that that the power supply module converges to operating in the active-high and active-low states after peak current demand is met.

Abstract translation: 本公开提供了能够向显示装置提供电力的电源模块的系统，方法和装置。 在一个方面，电源模块可以包括能够执行换向循环的电源控制器，其中每个换向循环包括在第一时间段内激励电感器，然后允许通电电感器向显示装置供电第二 时间段。 电源模块可以在电源模块执行换向循环的高电平有效和低电平状态下工作，而在其中不执行换向循环的暂停状态。 电源模块部分基于输出电压的值在这些状态之间转换。 峰值电流值变化，使得电源模块在满足峰值电流需求之后收敛到活跃高电平和低电平有效状态。

公开(公告)号：US09224324B2

公开(公告)日：2015-12-29

申请号：US14172425

申请日：2014-02-04

Applicant: Pixtronix, Inc.

Inventor： Alain Blaing Nadiguebe ,  Nada Vukovic-Radic ,  Didier Henri Farenc

IPC: G09G5/00 ,  G09G3/20 ,  G09G3/34

CPC classification number: G09G3/2092 ,  G09G3/3433 ,  G09G2300/0819 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2300/0871 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0252 ,  G09G2330/04

Abstract: This disclosure provides systems, methods, and apparatus for providing a cascode driver circuit for providing positive and negative polarities of two or more voltages at an output node. The voltages provided by the cascode driver circuit can be used to provide voltages to various interconnects and terminals of the display apparatus. The cascode driver circuit includes a first circuit for providing a positive polarity of two or more voltages to an output node via a first set of cascode transistors and a second circuit for providing negative polarities of the two or more voltages via a second set of cascode transistors. The driver circuit includes body-effect mitigation circuitry for reducing the impact of body-effect on the performance of the driver circuit. The driver circuit also includes circuitry for reducing substrate leakage current.

Abstract translation: 本公开提供用于提供共源共栅驱动器电路的系统，方法和装置，用于在输出节点处提供两个或多个电压的正极性和负极性。 由共源共栅驱动电路提供的电压可用于向显示装置的各种互连和端子提供电压。 共射共同驱动电路包括用于经由第一组共源共栅晶体管向输出节点提供两个或多个电压的正极性的第一电路和用于经由第二组共源共栅晶体管提供两个或多个电压的负极性的第二电路 。 驱动器电路包括用于减少身体效应对驱动器电路性能的影响的身体效应减轻电路。 驱动器电路还包括用于减少衬底漏电流的电路。