Reef Central Online Community

Go Back   Reef Central Online Community > General Interest Forums > Lighting, Filtration & Other Equipment
Blogs FAQ Calendar

Notices

User Tag List

Reply
Thread Tools
Unread 12/08/2020, 02:08 AM   #1
Miki
Registered Member
 
Join Date: Nov 2020
Location: Tampa, Florida
Posts: 3
LED light power supply circuit

I turned on an LED light today and found that the power supply inside was rectified to 300V by a bridge, and then the 1345D regulated output 300V DC.

The LED lights are connected in series. Such a circuit feels too simple, in order to save costs. Serious interference with peripheral electrical appliances! Especially the radio, you can't listen to it after turning on the light. Moreover, the LED will not work if it penetrates the entire lamp, and its durability is very poor.

The idea was changed to low-voltage parallel power supply. What is the power supply voltage of a single LED? What is the current in parallel?


Miki is offline   Reply With Quote
Unread 12/08/2020, 02:11 AM   #2
Miki
Registered Member
 
Join Date: Nov 2020
Location: Tampa, Florida
Posts: 3
Quote:
Originally Posted by Miki View Post
I turned on an LED light today and found that the power supply inside was rectified to 300V by a bridge, and then the 1345D regulated output 300V DC.

The LED lights are connected in series. Such a circuit feels too simple, in order to save costs. Serious interference with peripheral electrical appliances! Especially the radio, you can't listen to it after turning on the light. Moreover, the LED will not work if it penetrates the entire lamp, and its durability is very poor.

The idea was changed to low-voltage parallel power supply. What is the power supply voltage of a single LED? What is the current in parallel?



Miki is offline   Reply With Quote
Unread 12/12/2020, 05:33 PM   #3
oreo57
Registered Member
 
Join Date: Apr 2013
Posts: 1,793
Quote:
Originally Posted by Miki View Post
What is the power supply voltage of a single LED? What is the current in parallel?
Depends on it's "color"....but the V(f) range is like from 2-4 volts..




As your question is state there is no answer exactly.

The current it can handle is based on the type of led..

Quote:
you should check your lighting’s product specifications for “FCC Part 18” before you buy. At 1000Bulbs.com, we provide product specifications in PDF format, listing FCC and other important ratings for most of our vast inventory. Choosing Part 18-compliant lighting will eliminate most interference issues. However, it is not a guaranteed solution. For instance, your garage door opener or the amp you use for your jam sessions can be hampered by LED lights in close proximity. Other ways of reducing interference include increasing the distance between conflicting devices, using ferrite beads or chokes on wiring, or even using shielded wiring to keep the frequencies from crossing.

If you need more advice on noise interference and how to get rid of it, our team of dedicated experts awaits your call. Contact us at 1-800-624-4488 for your next easy and cost effective lighting solution.

https://blog.1000bulbs.com/home/are-my-bulbs-rf-quiet



Last edited by oreo57; 12/12/2020 at 05:39 PM.
oreo57 is offline   Reply With Quote
Reply

Tags
led light


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -6. The time now is 02:01 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright ©1999-2022
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.