共查询到19条相似文献,搜索用时 125 毫秒
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老练测试在研制荫罩型等离子体显示屏(SM-PDP)过程中起着非常关键的作用。以往等离子体显示屏的老练只是一种单纯的点屏实验过程,而基于SM-PDP的特点所研制的老练测试仪则兼顾了老练与测试功能,使老练和测试完全自动化。一种适用于SM-PDP的老练测试仪的设计与实现,是将原有的基本老练过程改进为老练测试过程;这不仅要求改变驱动的激励方式,而且需求一种有效的测试方法,从而达到较全面地了解制屏质量的目的。实验及测试表明,使用这种老练测试仪不但能改善SM-PDP的发光一致性和均匀性,而且能有效地衔接制屏工艺、点屏老练以及测试过程,从而提高了制屏成品率并降低了老练过程中的屏损坏率. 相似文献
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引言本文叙述了一种新的用于交流等离子体显示板的维持电路,电路中使用一只电感来复得在通常情况下对显示板电容充放电时损失的大部分能量。我们已经设计出实际的电路,能够复得电容损失能量的90%以上。在一个512×512等离子显示系统中,可以节省5~10瓦功率。这里所用的基本设计思想类似于Higgins在电致发光板中所采用的方法。我们发现这种谐振维持电路对等离子体显示来说是非常实用的,因为等离子板电极阻值低,形成高Q值电路,所以能量复得的效率很高。 相似文献
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压电能量采集器能把环境振动能转换为电能,该文基于如何将压电能量采集器转化电能最大化提取的研究,提出了一种压电能量采集器高效能量提取接口电路,采用有源二极管整流电路降低了整流过程中的导通压降损耗,电感同步开关电荷提取电路有效提取了寄生电容中储存的电能。利用华虹宏力0.11 μm CMOS工艺进行电路设计和版图布局。测试结果表明,接口电路可提取80.4%寄生电容中存储的电能,20 kΩ电阻负载下导通压降为20.2 mV,在加速度5g(g=9.8 m/s2)和频率40 Hz条件下平均提取功率是标准接口电路的2.58倍。该芯片可应用于基于振动能供电的无线无源传感节点等领域。 相似文献
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Kun-Ming Lee Chern-Lin Chen Shin-Tai Lo 《Industrial Electronics, IEEE Transactions on》2003,50(3):554-559
This paper proposes the use of a resonant pole inverter (RPI) as the control circuit to drive the data electrodes of an ac plasma display panel (PDP). This new application of RPI simplifies the circuit design by using fewer components, and has lower power losses than conventional driver circuits. The circuit employs two resonant MOSFETs and zero-voltage-switching technique to generate an asymmetric pulse train with moderate rising and falling time to drive the data electrodes of a PDP. The circuit also recovers the reactive energy from the PDP, like conventional energy recovery circuits. Power losses are further reduced by adding a dc offset voltage to the pulse train. The power consumptions of different driving circuits are assessed. The proposed circuit is tested on a dual-scan 42-in SVGA ac plasma display panel and is found to be practical. 相似文献
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Horng-Bin Hsu Chern-Lin Chen Song-Yi Lin Kun-Ming Lee 《Industrial Electronics, IEEE Transactions on》2000,47(5):1118-1125
A regenerative power electronic circuit is proposed to drive a plasma display panel (PDP) in sustain-mode operation. This driver utilizes inductors to resonate with the equivalent intrinsic capacitance of the PDP to avoid the abrupt charging/discharging operation. The energy losses due to conventional hardswitching driving and the displacement current of the PDP are mainly recovered. Compared with prior approaches, this driving circuit has a quite simple structure and is suitable for asymmetrical operation 相似文献
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Chen-Chang Liu Chern-Lin Chen Kun-Ming Lee 《Industrial Electronics, IEEE Transactions on》2000,47(6):1271-1277
A novel energy-recovery driver is proposed to drive a plasma display panel (PDP) in the sustaining operation. The proposed circuit uses the parallel resonance between the inductor and the intrinsic capacitance of PDP to mainly recover the energy lost by the capacitive displacement current of the PDP. The parasitic resonance caused by the parasitic inductance and the stray capacitance is prevented greatly. A 34-in AC PDP equipped with the proposed driving circuit, operated at 100 kHz, is investigated. In addition, some prior work is shown in this paper for comparison, in which the power consumption of driving the same 34-in panel is measured. The experimental results show that the proposed driver has a low-cost structure and better performance than the prior ones. 相似文献
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Chen-Chang Liu Horng-Bin Hsu Shin-Tai Lo Chern-Lin Chen 《Industrial Electronics, IEEE Transactions on》2001,48(2):344-351
A novel driver with discharge current compensation is proposed to drive an AC plasma display panel (PDP). This proposed circuit uses resonance between the inductor and the AC PDP to avoid abrupt charging/discharging. The four switches of the full bridge are all operated with zero-voltage-switching turn-on. In addition, an 8-in AC PDP equipped with the proposed driving circuit, operating at 100 kHz, is investigated. With the discharge current compensation, the experimental results show that the proposed driver can maintain the AC PDP to light at lower voltage (129 V) 相似文献
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采用数值方法,研究了荫罩式PDP(SM-PDP)放电单元的着火特性。计算了寻址期和维持期中,气体沿不同放电路径的着火电压,并讨论了放电单元中金属障壁对于着火特性的影响。最后,指出了SM-PDP着火特性的优越性。 相似文献
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面向PDP显示的数字逻辑电路及其设计 总被引:2,自引:0,他引:2
等离子体显示板(PDP)技术是一种极具前景的主动发光式平板显示技术,其驱动技术一直是研究热点之一.文中在介绍PDP驱动系统框架和PDP显示驱动系统中的数字逻辑功能的基础上,针对交流(AC)型PDP在ADS驱动方式下对图像数据的处理和对驱动状态的控制,提出一种面向PDP显示驱动的数字逻辑系统设计方案,并对方案中主要模块的功能、设计思路及存在的挑战进行了说明.最后,结合实验屏的驱动电路进行了逻辑设计仿真和系统验证.文中提出的数字逻辑设计方案对进行PDP显示驱动控制系统设计和相关专用集成电路设计具有重要的借鉴意义. 相似文献