Part Analysis
| General Data | |
| Manufacturer (OEM) | CWT |
| Platform | CSE |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 1x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor SCK-056 (5 Ohm) |
| Bridge Rectifier(s) |
1x
|
| APFC MOSFETs |
2x Vishay SiHG22N60E (600V, 13A @ 100°C, Rds(on): 0.18Ohm) & 1x Sync Power SPN5003 (for reducing the no-load consuption)
|
| APFC Boost Diode |
1x Cree Schottky Diode C3D0606A (600V, 6A @ 154°C)
|
| Bulk Cap(s) |
1x CapXon (400V, 470uF, 2000h @ 105°C, HP)
|
| Main Switchers |
2x Infineon IPW60R190P6 (600V, 12.7A @ 100°C, Rds(on): 0.190Ohm)
|
| APFC Controller |
Champion CM6500UNX
|
| Resonant Controller |
Champion CU6901VAC
|
| Topology |
Primary side: APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x ON Semiconductor NTMFS5C430N (40V, 131A @ 100°C, Rds(on): 1.7mOhm) |
| 5V & 3.3V | DC-DC Converters: 2x UBIQ QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) 2x UBIQ QM3054M6 (30V, 61A @ 100°C, Rds(on): 4.8mOhm) PWM Controller(s): ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: 3x Capxon (2 – 5,000 @ 105°C, KF), 1x Capxon (4-10,000 @ 105°C, FH) 1x Teapo (1-5,000 @ 105°C, SJ) 2x Teapo (3,000 @ 105°C, SC) 1x Teapo (4-10,000 @ 105°C, TA) 2x Elite (2,000 @ 105°C, EL(M)) 1x Elite (2,000 @ 105°C, ED(M)) 1x Elite(4 – 10,000 @ 105°C, EY)Polymer: 11x Apaq , 8x Elite |
| Fan Model | Hong Hua HA1225H12F-Z (120mm, 12V, 0.58A, Fluid Dynamic Bearing Fan)) |
| 5VSB Circuit | |
| Rectifier |
1x Silan Microelectronics SVF4N65RD FET(650V, 2.5A @ 100°C, Rds(on): 2.7Ohm)
|
| Standby PWM Controller |
On-Bright OB5282
|
This is CWT’s CSE platform. The non-VE Core Reactor II editions use the same platform, so you probably wonder what the catch is. XPG used lower-cost electrolytic capacitors to suppress the production cost, which still have high enough quality to outlive the extended warranty. Moreover, the cooling fan remained the same, which is equally important with the filtering caps. All FETs are by good manufacturers since XPG didn’t want to jeopardize the platform’s reliability.
On the primary side, besides the APFC converter, which has been used in every desktop PSU for many years, we also find a half-bridge topology and an LLC resonant converter for lower switching losses. On the secondary side, a synchronous rectification scheme handles the 12V rail, with four FETs total, and the minor rails are generated through a pair of DC-DC converters.
The bulk caps and several caps on the secondary side are by Elite, and we also find several CapXon electrolytic caps. On the secondary side, many polymer caps are also used for ripple filtering.
