Skyrim: Do I need to perk up my smithing to get advanced weapon/armor improving when I have these awesomely enchanted trinkets or smithing?

Solution 1:

There currently isn't a weapon damage cap, so you'll be able to create stronger ebony weapons with the ebony perk than without. This goes for all weapons and their respective smithing perks.

That answers your question, but I think maybe the question you should be asking is, "How easy do I want to make this game".

I'm a level 57 with 100 in smithing and all perks. Using only 25% Smithing Ring and Necklace, I can great 200+ damage bows and 100+ swords, before dual enchanting them with additional stats. I'm on Master difficulty where I do half damage, and I'm still incredibly deadly and near invincible. This is without using any potions to boost while smithing.

So if you want to create the stronger armors/weapons, you'll need the perks, but I wouldn't say you need them to become super powerful.