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How do you know what resistor to use in a simple LED circuit ?

General Electronics Chat 5 months ago at 07:18 AM

Last message by Tonyr1084 on October 12, 2022 at 12:01 PM

11 Replies
229 Views
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Considerations in using IC's at high voltage

Digital Design 6 months ago at 09:06 PM

Last message by eetech00 on October 3, 2022 at 04:48 PM

6 Replies
398 Views
How to dim led circuit?

General Electronics Chat 6 months ago at 06:47 AM

Last message by Audioguru again on September 22, 2022 at 10:39 AM

7 Replies
286 Views
LED Bulbs / Dimmer Problem?

Power Electronics 6 months ago at 03:34 PM

Last message by dendad on September 14, 2022 at 02:11 PM

8 Replies
243 Views
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simplest VU meter

Analog & Mixed-Signal Design 6 months ago at 12:06 PM

Last message by bassbindevil on September 13, 2022 at 03:13 PM

8 Replies
423 Views
Asking for simple LED driver circuit diagram

Analog & Mixed-Signal Design 7 months ago at 08:56 AM

Last message by planetElectron on September 13, 2022 at 01:57 AM

22 Replies
769 Views
Cheap LED garage light not working

Technical Repair 8 months ago at 04:27 PM

Last message by wayneh on September 7, 2022 at 12:16 PM

13 Replies
827 Views
Led Matrix Display and switching EPROM address problem

General Electronics Chat 6 months ago at 11:23 AM

Last message by q12x on September 6, 2022 at 01:51 PM

66 Replies
1228 Views
Cascaded boost/buck converter problem

Power Electronics 7 months ago at 04:30 AM

Last message by DickCappels on September 2, 2022 at 11:21 AM

31 Replies
796 Views
PWM'ing 230V DC LED strings

Power Electronics 3 years ago at 10:42 AM

Last message by ward2718 on September 1, 2022 at 03:01 PM

1 Replies
357 Views
52 Replies
1750 Views
E
Peculiar issue with a battery powered lantern

Technical Repair 7 months ago at 10:22 AM

Last message by Edgecrusherr on August 8, 2022 at 02:40 PM

53 Replies
1345 Views
Dangers from blue light exposure worsen with age

General Science, Physics & Math 7 months ago at 12:51 PM

Last message by dcbingaman on August 1, 2022 at 09:14 PM

2 Replies
220 Views
X
Fluorescent pins

General Electronics Chat 8 months ago at 11:04 AM

Last message by xchcui on July 28, 2022 at 11:45 AM

9 Replies
410 Views
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LED bulb compatibility with fluorescent ballasts

General Electronics Chat 8 months ago at 02:44 PM

Last message by MisterBill2 on July 23, 2022 at 05:00 PM

3 Replies
356 Views
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Troubleshooting a Technics SU-V9 LED circuit

Technical Repair 8 months ago at 09:11 AM

Last message by bobert.hinton on July 20, 2022 at 01:55 PM

2 Replies
294 Views
Help with LED light strip installation

General Electronics Chat 8 months ago at 09:08 PM

Last message by BobTPH on July 20, 2022 at 06:01 AM

13 Replies
437 Views
LED driver

General Electronics Chat 8 months ago at 02:49 PM

Last message by MrSalts on July 19, 2022 at 12:59 PM

14 Replies
302 Views
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RGB matrix connection to IS31FL3731 LED drive

Digital Design 8 months ago at 02:46 PM

Last message by ftpsmb on July 18, 2022 at 02:46 PM

0 Replies
400 Views
The plain LED light bulbs on the market...

General Electronics Chat 8 months ago at 11:29 AM

Last message by Externet on July 15, 2022 at 02:08 PM

2 Replies
333 Views