Miesięczne archiwum: Wrzesień 2015

ShenZen2U PCB Prototyping Review

http://www.shenzhen2u.com/PCB – cheap Chinese PCB Manufacturer review

My order:

  • PCB
    • 2 layers
    • max 5cm x 5 cm
    • 10 pieces
    • PCB Thickness: 1.6mm
    • Copper thickness: standard – 1 oz/ft2 = 35um
    • Surface finish: HASA
    • Solder mask color: Green (additional fees for other colors)
    • No sub-boards
    • 100% E-Test
  • Stencil – frameless 19cm x 29cm

Czytaj dalej

Cheap PCB prototyping & manufacturing in China – reviews

Review of some Chinese PCB prototyping services and manufacturers

I’m in progress of testing some of cheap Chinese PCB manufacturers. I’m going to try to write detailed description for each of them.

Tested so far:

SeeedStudio Fusion

https://www.seeedstudio.com/fusion_pcb.html

SeeedStudio.com Fusion – New PCB Services from popular DIY and prototyping company

Dangerous Prototypes

http://dangerousprototypes.com/store

Dangerous Prototypes – PCB Manufacturer Review

DirtyPCBS

http://dirtypcbs.com/

DirtyPCBS.com – PCB Prototyping review

shenzhen2u

http://www.shenzhen2u.com/PCB

ShenZen2U PCB Prototyping Review

smart-prototyping

http://smart-prototyping.com/PCB-Prototyping.html

Smart Prototyping – PCB Prototyping review

ShenZen2U and SmartPrototyping looks bascily like the same company. But they are not (as SmartPrototyping explained).

AMD AM1 (Athlon 5350) Real power consumption

Rationale

A few days ago I was building rack 19″ server based on AMD Athlon 5350 CPU. The main goal was to create a hardware set that will operate on wide supply voltage ranges (48V, 24V, 19V) and will be power efficient.

I decided to take a look at quite cheap AMD AM1 Athlon APU with TDP said to be 25W.

Czytaj dalej