20
Jan
Dc To Dc Led Driver Circuit. My input voltage is not clear yet but I guess I will use a li-ion battery. I am researching a dc-dc converter circuit topology where I can operate at high. My LED specs are 282-315 V forward voltage at 1050 mA current maximum power 10 watts. I will work at a switching frequency of about 2 MHz.
120W DC Input Constant Current LED Driver. Because it directly regulates output current the LT1932 is ideal for driving light emitting diodes LEDs whose light intensity is proportional to the current passing through them not the voltage across their terminalsWith an input voltage r. Where DC to DC Converter is Used. Comply to worldwide safety regulations for lighting. LTC 6992 is a silicon Oscillator with an easy to use analog voltage controlled pulse width. One example of a device that is easy to design with is Infineons ILD6070 DCDC LED driver with flexible dimming options.
The datasheet provides a table guideline to select the right inductor and resistor to use with the device.
Following Simple PWM White LED Driver circuit designed by using IC LT3491 and IC LTC6992 from Analog devices. I will work at a switching frequency of about 2 MHz. The 80V DC-DC LED driver integrated circuits ICs ILD8150ILD8150E feature an innovative hybrid dimming mode to achieve 05 of the target current. My input voltage is not clear yet. In addition its very scalable and can handle one to eighteen LEDs in series. With a supply voltage range up to 80V DC these LED driver ICs provide a high safety voltage margin for lighting applications operating close to safe extra-low voltage SELV limits.