| 1. | A leading current interpretation holds that they are blocks of ice floating on a recently frozen sea covered by dust 目前最有代表性的解释是它们是一块块浮在一片被沙尘掩盖,最近冻结的海洋上的冰块。
|
| 2. | There are two relatively independent sub - blocks in the system : self - adjusting charge pump and parallel led current control driver 整个电路包括两个相对独立的模块:具有自适应调整功能的电荷泵电路和并联led电流控制电路。
|
| 3. | The outside of this chip adopts boost structure to drive up to seven white leds with the input voltage ranging from 3v to 5v . series connection of the leds provides identical led current resulting in uniform brightness 电路的电源输入在3v 5v变化,采用boost电路结构升压,在极限情况下最多可驱动七个白光led ,由于led串联,因此各led电流完全匹配,亮度一至。
|
| 4. | The 1mhz fixed frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low emi and low input ripple . an external resistor sets the full - scale led current , while two digital inputs control on / off and select amongst three levels of brightness . the circuit operates in 1x mode until just above dropout 工作在1mhz固定频率,采用线性调制模式使输入纹波大大减小;利用一个外部电阻可以设置满量程led电流;外接两个数字信号控制芯片开关并选择led三级亮度中的一级;具有过温、过压/欠压等保护功能,工作温度范围为- 40 + 85 。
|
| 5. | The product adapts to single - phase asynchronous motor and three - phase asynchronous motor , which is supplies with single - phase power and the frequecy is blew 100hz . it is specially used for supplying leading current for elecrtomtor , and then the electromotor is actuated with the adeqate moment consequently . and when the electromotor runs smoothly , the capacitor will disconnect from the circuit . the product possesses stable capacity and long relative runtime 1 .用途及特点适用于100hz以下单相异步电动机和单相电源供电的三相异步电动机,专门用于向电动机提供超前电流,使电动机获得足够的力矩而起动。
|