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How to power an old LED lamp via USB

General Electronics Chat 2 months ago at 12:13 AM

Last message by Dodgydave on May 7, 2021 at 09:34 AM

5 Replies
235 Views
Transistor datasheets 210503

General Electronics Chat 3 days ago at 03:21 PM

Last message by crutschow on May 4, 2021 at 09:48 AM

3 Replies
126 Views
Switching common anode RGB led?

Analog & Mixed-Signal Design 6 days ago at 01:14 AM

Last message by djsfantasi on May 1, 2021 at 07:32 AM

29 Replies
342 Views
S
 Capacitor issue at high load current

Power Electronics One week ago at 05:01 PM

Last message by spitsnsparkin on April 30, 2021 at 12:45 PM

5 Replies
341 Views
A
 LED identification help please

General Electronics Chat One week ago at 10:38 AM

Last message by anniel747 on April 28, 2021 at 09:18 AM

19 Replies
233 Views
Blinkers as positioning lights, circuit fails on high(er) load.

Automation, Robotics & Control 2 weeks ago at 02:36 PM

Last message by Irving on April 23, 2021 at 09:46 AM

25 Replies
686 Views
IR LED from TV Remote

Analog & Mixed-Signal Design About 3 weeks ago at 06:35 AM

Last message by ericgibbs on April 17, 2021 at 07:23 AM

9 Replies
158 Views
LED driver

Power Electronics 3 weeks ago at 04:40 PM

Last message by wayneh on April 16, 2021 at 09:52 PM

8 Replies
256 Views
How to individually control about 100 LED's?

General Electronics Chat 7 months ago at 03:29 PM

Last message by wayneh on April 15, 2021 at 11:39 AM

23 Replies
787 Views
S
 LED Strip "Fade to ON" / "Fade to OFF"

General Electronics Chat 3 weeks ago at 09:28 AM

Last message by sghioto on April 15, 2021 at 09:51 AM

22 Replies
487 Views
I
 Basic Inverter Voltage regulation

Power Electronics 3 weeks ago at 09:29 AM

Last message by Ian0 on April 14, 2021 at 10:00 AM

26 Replies
411 Views
D
 LED Controller PCB Design Feedback/Suggestions Request

PCB Layout , EDA & Simulations 4 weeks ago at 01:05 PM

Last message by devonullo on April 7, 2021 at 01:05 PM

0 Replies
150 Views
P
 LED pannel stays dimly lit when earth is connected

General Electronics Chat One month ago at 04:52 AM

Last message by PeteB9 on April 6, 2021 at 01:20 PM

8 Replies
222 Views
Thinking of a New future in lighting decor

Jobs & Career Advising One month ago at 01:39 PM

Last message by Yaakov on April 4, 2021 at 03:39 AM

12 Replies
800 Views
H
 Looking for help to review the schematic for my flight computer PCB

Homework Help One month ago at 05:24 PM

Last message by Hemi on April 2, 2021 at 12:14 PM

5 Replies
322 Views
Project 8mm film magnified on a piece of glass a few inches away

General Electronics Chat One month ago at 08:31 AM

Last message by Yaakov on March 31, 2021 at 05:22 AM

32 Replies
652 Views
B
 Circuit for LED driver

General Electronics Chat One month ago at 01:17 AM

Last message by BobTPH on March 30, 2021 at 11:18 AM

9 Replies
562 Views
Light Bulbs

Power Electronics One month ago at 12:46 PM

Last message by Yaakov on March 30, 2021 at 09:27 AM

22 Replies
424 Views
M
 Help with led

General Electronics Chat One month ago at 01:51 PM

Last message by MisterBill2 on March 28, 2021 at 08:12 AM

4 Replies
140 Views
N
 Do *all* LCD TVs have a Fresnel Foil? (even big or HDR TVs?)

General Electronics Chat One year ago at 03:53 PM

Last message by nitrous2020 on March 27, 2021 at 02:55 PM

11 Replies
4640 Views