公开(公告)号：US07227763B1

公开(公告)日：2007-06-05

申请号：US11459621

申请日：2006-07-24

申请人： Si Youl Noh ,  Min Sung Yang

发明人： Si Youl Noh ,  Min Sung Yang

IPC分类号： H02H7/122 ,  H05B37/02

CPC分类号： H05B41/2856

摘要： Disclosed is a power supply apparatus using a half-bridge type driving circuit, which is intended for the purpose of the compensation of a power factor, the achievement of a low crest factor and the maintenance of a constant output. The power supply apparatus using a half-bridge circuit for rectifying an AC power source and providing the rectified power source to a load includes a line voltage detecting means for detecting a voltage of an input power source provided to the load, an error amplifying means for comparing the voltage detected from the line voltage detecting means with a reference voltage and outputting a voltage corresponding to a difference therebetween, a pulse width modulating means for outputting a pulse having a variable width corresponding to an output level of the error amplifying means, a dead time controlling means for outputting a first pulse corresponding to a high side and a second pulse corresponding to a low side by the pulse output from the pulse width modulating means, wherein the first and second pulses have different pulse widths and different rising and falling time points, and a driving means for driving the power source supplied to the load as a constant current state by the first and second pulses.

摘要翻译： 公开了一种使用半桥式驱动电路的电源装置，其旨在用于补偿功率因数，实现低波峰因数和维持恒定输出。 使用用于整流交流电源并将整流电源提供给负载的半桥电路的电源装置包括线电压检测装置，用于检测提供给负载的输入电源的电压，误差放大装置， 将从线电压检测装置检测出的电压与参考电压进行比较并输出与它们之间的差值的电压;脉宽调制装置，用于输出具有对应于误差放大装置的输出电平的可变宽度的脉冲， 时间控制装置，用于通过从脉冲宽度调制装置输出的脉冲输出对应于低侧的第一脉冲和与低侧对应的第二脉冲，其中第一和第二脉冲具有不同的脉冲宽度和不同的上升和下降时间点 以及驱动装置，用于通过第一驱动装置驱动提供给负载的电源作为恒定电流状态 和第二脉冲。

公开(公告)号：US20120092291A1

公开(公告)日：2012-04-19

申请号：US13265364

申请日：2010-01-14

申请人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

发明人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

IPC分类号： G06F3/044 ,  G06F3/045

CPC分类号： G06F3/045 ,  G06F2203/04104

摘要： The present invention relates to a resistive touchscreen for recognizing touch coordinates through a capacitor charging time constant, and more specifically, the invention comprises: an equal resistance line operating means for obtaining the same resistance line according to an (Rv+Ry+) value and the same resistance line according to an (Rv+Ry−) value by using the charge time constant after a charge time constant measuring means measures charge time constants of capacitors CconL and CconR; and a coordinate calculating means for obtaining intersecting points of the resistance lines, thereby perceiving the intersecting points as touch positions. According to the present invention, a conventional ADC (analog to digital converter) is not used because the touch positions can be perceived through the capacitor charging time constants, whereby the invention is advantageous for IC integration.

摘要翻译： 本发明涉及一种用于通过电容充电时间常数识别触摸坐标的电阻式触摸屏，更具体地说，本发明包括：等电阻线操作装置，用于根据（Rv + Ry +）值获得相同的电阻线，并且 在充电时间常数测量装置测量电容器CconL和CconR的充电时间常数之后，通过使用充电时间常数根据（Rv + Ry-）值相同的电阻线; 以及坐标计算装置，用于获得电阻线的相交点，从而将交点作为触摸位置。 根据本发明，由于可以通过电容器充电时间常数感知触摸位置，所以不使用传统的ADC（模数转换器），由此本发明对IC集成是有利的。

公开(公告)号：US08711123B2

公开(公告)日：2014-04-29

申请号：US13265364

申请日：2010-01-14

申请人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

发明人： Kwang Deok Park ,  Sang Bo Cheong ,  Jae Hong Joo ,  Min Sung Yang ,  Seong Hyun Nam ,  Sang Chuel Lee

IPC分类号： G09G5/00 ,  G06F3/033 ,  G09G5/08 ,  G06F3/041 ,  G06F3/045 ,  G06K11/06 ,  G08C21/00

CPC分类号： G06F3/045 ,  G06F2203/04104

摘要： The present invention relates to a resistive touchscreen for recognizing touch coordinates through a capacitor charging time constant, and more specifically, the invention comprises: an equal resistance line operating means for obtaining the same resistance line according to an (Rv+Ry+) value and the same resistance line according to an (Rv+Ry−) value by using the charge time constant after a charge time constant measuring means measures charge time constants of capacitors CconL and CconR; and a coordinate calculating means for obtaining intersecting points of the resistance lines, thereby perceiving the intersecting points as touch positions. According to the present invention, a conventional ADC (analog to digital converter) is not used because the touch positions can be perceived through the capacitor charging time constants, whereby the invention is advantageous for IC integration.

摘要翻译： 本发明涉及一种用于通过电容充电时间常数识别触摸坐标的电阻式触摸屏，更具体地说，本发明包括：等电阻线操作装置，用于根据（Rv + Ry +）值获得相同的电阻线，并且 在充电时间常数测量装置测量电容器CconL和CconR的充电时间常数之后，通过使用充电时间常数根据（Rv + Ry-）值相同的电阻线; 以及坐标计算装置，用于获得电阻线的相交点，从而将交点作为触摸位置。 根据本发明，由于可以通过电容器充电时间常数感知触摸位置，所以不使用传统的ADC（模数转换器），由此本发明对IC集成是有利的。