W - white lead 中文

white lead 短語和例子【化學】1.鉛白，堿式碳酸鉛。2.白鉛，鉛粉，...

短語和例子【化學】 1.鉛白，堿式碳酸鉛。 2.白鉛，鉛粉，白粉〔各種含鉛的白色涂料〕。 “white“ 中文翻譯： adj. 1.白(色)的，雪白的；白晰的，帶白色的；蒼白 ...“lead“ 中文翻譯： vt. (led) 1.領導，引導，帶領。 2.攙，牽。 ...“lead white“ 中文翻譯：堿式碳酸鉛; 鉛白“flake white; lead white; ceruse white“ 中文翻譯：鉛白“basic carbonate white lead“ 中文翻譯：白鉛粉; 堿式碳酸鹽白; 酸酸鉛白; 碳酸鉛白“basic lead silicate white“ 中文翻譯：堿式硅酸鉛白“basic lead sulfate white“ 中文翻譯：堿式硫酸鉛白“basic lead white“ 中文翻譯：堿式碳酸鉛白; 鉛白“basic sulfate white lead“ 中文翻譯：硫酸鉛白“camphorated white lead ointment“ 中文翻譯：樟腦鉛白軟膏“chamber white lead“ 中文翻譯：室鉛白“electrolytic white lead“ 中文翻譯：電解鋁白; 電解鉛白“lead white paper“ 中文翻譯：鉛白試紙“lead-base white metal“ 中文翻譯：鉛基白合金“reduced white lead“ 中文翻譯：還原鉛白“special liquid white lead“ 中文翻譯：特等白鉛調合漆“sublimed white lead“ 中文翻譯：升華白鉛(堿式硫酸鉛和氧化鋅的混合物)“white lead ointment“ 中文翻譯：炭酸鉛軟膏（鉛白軟膏）“white lead ore“ 中文翻譯：白鉛礦“white lead paint“ 中文翻譯：白鉛漆; 白鉛油漆; 鉛白漆“white lead paper“ 中文翻譯：鉛白紙；碳酸鉛濾紙; 碳酸鉛浸過的濾紙“white lead powder“ 中文翻譯：白鉛粉“white lead putty“ 中文翻譯：白鉛油灰“white-lead paint“ 中文翻譯：白鉛漆“white-lead plaster“ 中文翻譯：鉛白硬膏

white leather
A white led driver circuit is presented in this paper . the circuit drives up to four white leds with regulated constant current for uniform intensity . by utilizing proprietary adaptive 1x / 1 . 5x modes and ultra - low - dropout current regulators , it maintains the highest possible efficiency over the full 1 - cell li + battery input voltage range 整體電路以恒定電流驅動4只白光led ,利用1倍/ 1 . 5倍分數型電荷泵和低壓差電流調節器,在整個鋰電池供電電壓范圍內保持最高的效率,并使四個白光led獲得均勻的亮度。
In the circuit designing section , the basic theories of white led drivers , pulse width modulation ( pwm ) mode and dc / dc converter are given first . then the general structure of the ic is designed based on its functional requirement . combined with its application condition , the working course is showed 文中首先對白光led驅動方式, boost型轉換器及pwm控制方式的工作原理進行介紹,然后根據功能需要以及設計要求完成了對pwm工作方式的單片式高頻高效的開關電源管理集成電路的整體結構設計,同時結合該集成電路的實際應用詳細地描述了其工作原理。
A high - efficiency white led driver based on charge pump was designed in this paper , which introduces the structure of charge pump to perform the conversion of rising input voltage , drives up four white leds in parallel with regulated constant current and keeps all leds with uniform brightness 本文設計了一種基于電荷泵的高效率白光led驅動電路。它采用電荷泵結構對輸入電壓進行升壓變換,以可調節的恒定電流驅動并聯的4只白光led ,并保持每個led的亮度相同。
Technology and equipped with innovative all - in - one color camera with white led illuminator , the system can effectively detect , recognize and capture the license plate numbers , both reflective and non - reflective , of all incoming and outgoing vehicles at both entrance and exit of the asia world expo car park 科技為研發基礎，并配備最新穎之一件式白光照明器攝影機，能有效及準確地檢測識別及記錄所有停車場閘口進出入車輛之車牌號碼，包括受光線反射的車牌。
The features of this circuit are designed as : the input voltage ranged from 2 . 5v to 7v , and the working frequency is fixed at 1 . 0mhz , pwm maximum duty cycle is 87 % . this ic chip can be used to drive white led displays in cellphone , digital camera , mp3 player , pda and other portable digital devices 該電路的輸入電壓范圍是2 . 5v ~ 7v ,工作頻率1 . 0mhz ,輸出信號工作的最大占空比為87 % .此芯片可以用于驅動手機, pda ,數碼相機, mp3等數碼產品的led 。
Due to characteristics of white led such as large forward voltage and high temperature sensitivity , and necessity of uniform brightness requirement of the portable application , specially designed power management ic is needed 由于便攜式應用對白光led亮度均勻性的要求,以及白光led自身的正向導通電壓大、電學參數離散性大、容易受溫度影響等特點,需要設計專門的電源管理芯片來驅動白光led 。
In the application of driving white led , an auto - adjustable charge pump which adjust work mode according to the forward voltage of load led and input voltage is presented . the conventional charge pump changes work mode at fixed input voltage value 在電荷泵驅動白光led的應用中,本論文研究設計了一種根據負載led正向導通壓降和輸入電壓來選擇電荷泵工作模式的電荷泵型led驅動器。
Since color lcd screen is applied in the cellphone and portable gamebox , there are abundant demands for high light brightness and solid color backlight source . white led is considered as the best source in current situation 自從蜂窩電話和便攜式游戲機采用彩色液晶顯示屏后,市場上就出現了對高亮度純色背景光源的大量需求,白光二極管被認為是目前市場上可以獲得的最好的背景光源。
An auto - adjustable charge pump embodied in a white led driver has been taped - out successfully using a 0 . 5 m cmos process . it can provide more than 80ma output current in the wide input voltage range from 2 . 7v to 5 . 5v 此電荷泵芯片采用0 . 5 mcmos工藝;輸入電壓范圍為2 . 7 5 . 5v ;可以提供大于80ma的輸出電流,同時驅動四顆白光led ;并且此芯片具有根據輸入電壓自動選擇工作模式的功能。
Before our wedding i had a dream in which a gorgeous girl dressed in white led me along a path , and i followed her unwittingly . my feeling about this image was that my heart , after drifting for so many years , had finally found some support 在結婚之前，我曾作過一個夢，一個身穿白衣的美麗女孩，在前方引領我，我情不自禁地跟她走，當時的感覺是我漂泊多年的心將有所依托。
With forward voltage of white led lower and lower , the efficiency of traditional charge pump driver is lower and lower , too . the new auto - adjustable charge pump can keep the charge pump working in high efficient 1x mode as long as possible 根據負載led的正向壓降和輸入電壓選擇工作模式,可以讓驅動器最大限度地工作在高效率的1x模式下,有效地提高了驅動器的led效率。
The leds began to penetrate into lighting source after the first white led was born in 1998 , it was forecasted that the led will be third generation lighting after incandescent and fluorescent bulbs 隨著led效率的迅速提高和成本的不斷下降，特別是白色led的問世，使得發光二極管由顯示、指示向照明領域迅速擴展，專家預計led將成為繼白熾燈、熒光燈之后的第三代照明光源。
4 . our company have successed developed new technology white led and come to production , this new technology absolutely break nichia and siram white led patent , it would not infrane nichia and osiram patent 并已批量投產。此最新技術完全突破日亞歐斯朗白光led專利技術，對日亞歐斯朗白光led專利不造成侵權。
A high precise parallel white led driver with finer current control precision and matching precision is analyzed and designed in the thesis . and the chip was tested after taped out successfully 文章分析和設計了一種具有較高電流控制精度和匹配精度的并聯白光led驅動芯片,并在成功流片后進行了測試。
A single high power led with integrated aluminum pcb for heat conduction . drill holes available for screw mounting . options including led power levels , colors and color temperature ( for white led ) 單顆超高亮度led ，加上散熱鋁基pcb板及螺旋固定孔，方便整合入各式產品之優質光源模組。
Briteon technology will provide high quality and ultra high power white led for all potential customers in total solution and our strategy is to provide a win - win opportunity 提供高品質.高功率之白光led完整解決方案，為所有渴望進入半導體照明之合作伴提供雙贏戰略！
Compounded with several simple external components , the circuit can construct a white led driver . the author firstly introduces the developments and investigation significations 在文中,作者首先介紹了dc - dc轉換電路在國內外的動態和研究意義。
For white color led technology , sunlight developed its own patented white led which will not commit any infringement of any other white led patent 研發及技術支持服務公司的led的研發主要在白光。相關的研發人員在led界已有十數年的從業經驗。
There are mainly two structures of white led driver , based on capacitor - charge pump and based on inductor - switching power supply 白光led驅動電路主要有兩種結構:基于電容的電荷泵結構和基于電感的開關電源結構。

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white lead

white lead 短語和例子【化學】1.鉛白，堿式碳酸鉛。2.白鉛，鉛粉，...

white leather

Compounded with several simple external components , the circuit can construct a white led driver . the author firstly introduces the developments and investigation significations 在文中,作者首先介紹了dc - dc轉換電路在國內外的動態和研究意義。

For white color led technology , sunlight developed its own patented white led which will not commit any infringement of any other white led patent 研發及技術支持服務公司的led的研發主要在白光。相關的研發人員在led界已有十數年的從業經驗。

There are mainly two structures of white led driver , based on capacitor - charge pump and based on inductor - switching power supply 白光led驅動電路主要有兩種結構:基于電容的電荷泵結構和基于電感的開關電源結構。