The utility model discloses an LED backlight drive circuit, comprising a plurality of LED lamp strings connected in parallel, a constant current control circuit used for controlling the currents of the LED lamp strings to be same in size, and a plurality of constant voltage units same in ...
1. A LED driver circuit, comprising: a control circuit, generating a LED current for controlling the LED; a first resistor, connected to the control circuit for determining the value of the LED current; a control terminal of the control circuit, coupled to receive a control signal for...
4) Backlight drive circuit 背光驱动电路5) white LED driver 白光LED驱动 1. Charge pump circuit design for white LED driver; 一种用于白光LED驱动的电荷泵电路设计 2. Design of Step-up DC/DC White LED Driver Chip Embedded EEPROM; 内嵌EEPROM的DC/DC白光LED驱动芯片的设计 3. The White LED...
Linear LED driver circuit uses a linear device to control the current to the LEDs. This circuit solution is not efficient at all and limited to small power application only. A linear LED driver is can be a simple voltage source and a current limiting resistor only; it is indeed very simple...
Overstable Driver:Designed for overstable performance, ensuring reliable and consistent light output. 15 Degree Driver:Optimized for 15-degree beam angle, perfect for focused lighting in specific areas. Constant Current LED Strip Power Input:Ensures stable power supply for LED strips, enhancing their ...
A white light-emitting-diode array driver circuit with a multiple output flyback (or forward) converter with output current mode control. The circuit comprises a power supply source and a transformer. The transformer has a primary winding coupled to, and configured to receive current from, the ...
In summary, proper control of LED lighting requires careful attention right from the start of the design process. The more sophisticated the light source, the more likely that PWM dimming will be used. This in turn requires the system designer to carefully consider the LED driver topology. Buck...
专利名称：LED DRIVER CIRCUIT 发明人：STEVENS, Frederick,WALLHEAD,Geoff,ROHNER, Daniel,MAIR, Alexander 申请号：EP2007000471 申请日：20070119 公开号：WO07/121798P1 公开日：20071101 专利内容由知识产权出版社提供 摘要：The invention relates to an emergency lighting device (1) for operating a light source...
LEDLightingDriverICOverview E26/E27/E17,T5/T8Par30/Par38,Streetlight Isolated AC/CC Non-isolatedLEDLightingWithETMR16,AR111GU10,E26/E27/E17T5/T8,Par30/Par38 DC/CC WithoutET Streetlight,carlight,desklight,freezelight,projectorEmergencylight 4 ACinputtoconstantcurrentLEDdriver--Isolated 5 ACInput...
2.1电源电路(Power Circuit) 对于一般照明应用中的LED驱动器,感应线路电流谐波必须符合IEEE Std 519-2014。通常,如果没有功率因数校正(PFC)技术,很难满足这些要求。在该模型中设计的两级LED驱动电路中,第一级提供接近单位的功率因数和低的总谐波失真(THD),而第二DC/DC级用于提供对输出的严格调节。Boost PFC转换器...