pwm dimming of voltage regulator

[kc December 21, 2015 at 5:06 am Post count: 0]

#2740 Reply |

Hello I need to control the output of a 30v 100 watt cob led using a cv pwm 24volt dmx control. I setup the 24v supply than the dmx pwm dimmer than I used your DROK® LTC1871 3.5V-30V DC Boost Converter Power Transformer Voltage Regulator 5V/12V Step Up Volt Module Power Supply Board, than the 30 v 100 watt cob led. This worked but your regulator was emitting a high pitch noise which is not helpful. Do you have a dc step up regulator more suitable? Or do you have a voltage regulator that will accept 0-10v dc analog control input? That would also work.

Thank you

[DrokKeymaster December 22, 2015 at 3:32 am Post count: 2971]

#2742 Reply |

Hi, sorry, we don’t have a voltage regulator that will accept 0-10v dc analog control input. As your description, please note that the wiring order is 20v to 30v boost converter — PWM dimmer—-100W LED.
If you just need to step up voltage, the 150W DC Boost Converter is okay.

If you want to drive LED, then you need a constant current boost voltage regulator and the LTC1781 converter is a good choose.

Then if you still have any other questions, don’t hesitate to write to us.

Thanks!

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