Quick survey - which would you choose?

Khron

Badcaps Legend

Join Date: Sep 2006

Posts: 1350

Country: Finland
#1

Quick survey - which would you choose?

01-14-2013, 02:29 PM

Status quo: I've got a few PSU's to re-cap here, and a couple of them need / could use new primary caps. All of them have active PFC stages.

Now, i've narrowed it down to two similarly-priced contenders:

Panasonic TS-UQ 470u/400v, 2000h@85c, 2.39A@120Hz ripple rating

or

Panasonic TS-HD 560u/420v, 3000h@105c, 1.9A@120Hz ripple rating

For longevity's sake, i'm tempted to go with the higher-temp choice, but i'm a tad worried about the lower ripple spec.

Any thoughts?

Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans
Tags: None
goodpsusearch

Badcaps Legend

Join Date: Oct 2009

Posts: 2848

Country: Greece
#2

01-14-2013, 02:54 PM

Re: Quick survey - which would you choose?

Panasonic TS-HD 560u/420v, 3000h@105c, 1.9A@120Hz ripple rating
Comment
Khron

Badcaps Legend

Join Date: Sep 2006

Posts: 1350

Country: Finland
#3

01-14-2013, 03:26 PM

Re: Quick survey - which would you choose?

Thanks for the input, i was leaning towards that myself

Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans
Comment

Previous template Next

Help to choose caps with different ripple current

by CdDvdFlash

I have a LG RC689D power supply to replace caps but I'm not sure about ripple current values, one cap is 16V 2200uf 105c and I found the two below caps that I'm thinking of getting but do I choose one with a low or high ripple current?

https://au.rs-online.com/web/p/alumi...citors/0374433
and
https://au.rs-online.com/web/p/alumi...citors/7037501
- Channel: General Capacitor Questions & Issues
11-13-2021, 05:33 AM
Is it no harm to replace with capacitor without ripple current rating?

by chth96

When I tried to repair LG 29 inch CRT TV, I found that the ESR value of samyoung SMS capacitor(160v 2.2uf), which is very close to D1879 transistor, is 6 ohm.

Judging from above ESR Meter Table,I think It is necessary to replace this sms capacitor.So I visited local electronics shop,and I purchased 160v 2.2uf rubycon YK capacitor.
But when I browse through rubycon YK datasheet,I found that there is no ripple current rating for 160v 2.2uf specification. But On the contrary, I found 39 mA ripple current rating for 160v 2.2uf SMS capacitor.
Rubycon YK DataSheet (b...
- Channel: General Capacitor Questions & Issues
04-19-2024, 05:19 AM
What are typical ripple voltages on a laptop motherboard?

by Antonynl

I have here a HP pavilion hp 15-cs2975nd with a 1.095v power supply that is driven by a FDMF3035. I do see about 80mV of ripple on my scope. I searched through the datasheet to find possible values of the ripple but I don't understand the datasheet well enough.

So I have two questions:
1) what is the typical ripple voltages of gpu/cpu on a laptop or pc mobo?
2) what would be the max ripple of a FDMF3035 that drives an output of 1.095V?

Would be nice to have a rule of thumb of say a percentage of the supply voltage to be an acceptable ripple voltage....
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
12-09-2022, 06:51 AM
Is there a manufacturers tolerance for ripple?

by Ady2017

Hi all

I need to replace a 680uF 35V SamYoung NXB cap which has got a ripple of 1820. Whilst passing my local little electronics shop I picked up what they had in stock which was a 680uF 35V Panasonic FC with a ripple of 1655.

As the ripple rating is only 9% below what the original was I am wondering whether to risk it and fit it.

The catalogues specify a capacitance tolerance of +/-20% but state nothing about the ripple. If there is a similar tolerance for ripple then I might be worrying about nothing. Does anybody know?

Thanks
- Channel: General Capacitor Questions & Issues
11-13-2021, 11:46 AM
Lenovo 530 Vcore : what is the maximum ripple?

by Antonynl

Hi

I have a Lenovo 530 14ikb i5 8th gen motherboard and it fails to start Windows: it normally dies after I try to load Windows. Getting into bios screen works fine.

Made some measurements and I suspect that there is to much ripple on the 2 Vcore coils.

What is normally the maximum ripple allowed on say any of the power supplies? A few %??

The ripple is on both Vcore as outlined in red in attached photos.

Could be a bad driver?

Cheers...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
04-29-2023, 04:59 AM
Loading...
No more items.

Quick survey - which would you choose?

Quick survey - which would you choose?

Comment

Comment

Related Topics