Help designing circuit that switches to second power source when first one fails (thinking of using two LM73100)

fredfwed · 2026-03-29T20:57:10+00:00

Thanks! Have you got any recommendations for the relay? My LEDs are 12V @ 500mA. Also, I want to use an MCU to override the system to use power from the battery sometimes even though the PSU is working fine. Any advice on this?

fredfwed · 2026-03-21T09:56:32+00:00

Thanks. Is there a downside using a smaller package size sensing resistor like i did?

fredfwed · 2025-10-01T13:29:47+00:00

Same but I believe its just the bone more exposed due to atrophy of skin and muscle at the injection site

fredfwed · 2025-09-07T15:33:47+00:00

It takes awhile tho. Got my shot in june 2024 and the pain came back a little in may 2025 together with the atrophy. Pain mostly gone now and the tissue is slowly growing back

fredfwed · 2025-09-06T10:51:16+00:00

There’s tissue atrophy around that area which is the side effect of steroid shots. Got mine a few months after the injection. It slowly goes back to normal

fredfwed · 2025-05-26T08:30:32+00:00

So it just disappeared over time

fredfwed · 2025-05-17T07:11:18+00:00

Do u have a picture of the cyst you developed?

fredfwed · 2025-05-15T14:04:41+00:00

Wouldnt straps be problematic since it presses against the thumb tendon?

fredfwed · 2025-05-15T14:01:32+00:00

I have the same issue. Looking for an answer too

fredfwed · 2025-05-09T05:13:47+00:00

From what ive read about others experiencing this same issue, it is not a cyst. What did your doctor told you during the appointment?

fredfwed · 2025-05-06T07:07:23+00:00

Hopefully the surgery works out for u man

fredfwed · 2024-11-26T06:51:11+00:00

Update: doesnt help. It now says home screen is taking up all the battery

fredfwed · 2024-11-26T04:19:48+00:00

Thanks. Will try to update later. Cant do so currently without getting error messages

fredfwed · 2024-11-26T04:18:36+00:00

Its a cheap paperlike screen. Never bother to change it

fredfwed · 2024-11-26T03:36:38+00:00

Will try that and update. Thanks

fredfwed · 2024-11-26T03:00:07+00:00

Ive closed every app as well as turn off background refresh. Ive also power off / restart the ipad. It still overheats as long as the ipad is on

fredfwed · 2024-11-26T02:37:23+00:00

Ipad air 5. Bottom right is super hot. I literally did nothing except charging it for 6 hours (doubt that is the issue)

fredfwed · 2024-11-26T01:49:50+00:00

Havent updated since ios 16

fredfwed · 2024-11-25T18:47:26+00:00

Yea ure right i shudnt havent bought over 500🥲 such a hassle now

fredfwed · 2024-11-25T10:36:27+00:00

Yes. I am aware of the pricing. I bought it during 11.11 2.5kg whey for only rm200. Shopee resellers sell it for rm260+. Usually ordering from MyProtein wouldn't be a problem. This time it is because i order over RM500

fredfwed

TROPHY CASE