Part Analysis
| General Data | |
| Manufacturer (OEM) | XHY-Power |
| PCB Type | Double Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x Mov |
| Inrush Protection | NTC Thermistor MF72 5D15 & Relay HF46F-G |
| Bridge Rectifier(s) |
2x GBU15J (600V, 15A @ 100°C)
|
| APFC MOSFETs |
2x Ncepower NCE65TF130 (650V, 28A @ 100°C, Rds(on): 140mOhm)
|
| APFC Boost Diode |
1x DS065006C3
|
| Bulk Cap(s) |
1x TK (420V, 680uF, 2000h @ 105°C, LGW)
|
| Main Switchers |
4x CS13N50FA9R (500V, 8.5A @ 100°C, Rds(on): 0.5Ohm)
|
| APFC Controller |
Champion CM6500UNX
|
| Resonant Controller | Champion CM6901T6 |
| Topology |
Primary side: APFC, Full-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 4x CRSM016N06L2 (60V, 136A @ 100°C, Rds(on): 2.4mOhm) |
| 5V & 3.3V | DC-DC Converters: 6x Excelliance MOS EMB07N03H (20V, 35A @ 100°C, Rds(on): 7mOhm) PWM Controller(s): uPI-Semi uP3861P |
| Filtering Capacitors | Electrolytic: 9x Nippon Chemi-Con (4-10,000h @ 105°C, KY), 3x Nichicon (2-8,000h @ 105°C), 2x PLH, Polymer: 21x FPCAP |
| Supervisor IC | Infino IN1S424I (OCP, OVP, UVP, SCP, PG) |
| Fan Model | DWPH EFH-12E12H (120mm, 12V, 0.5A, Hydraulic Dynamic Bearing Fan) |
| 5VSB Circuit | |
| Rectifier |
1x HM69-60R10 SBR (42V, 22A)
|
| Standby PWM Controller | Excelliance MOS EM8569C |
The OEM is XHY or Fusion Power. This is a good OEM, but its name isn’t widespread since it primarily works behind the scenes. The PCB is small and similar to the 1000W model; I don’t like the look of the non-straight pair of heatsinks. Because of the limited space, there isn’t much space between parts for increased airflow, which is why large heatsinks are used. The soldering quality is good on the main PCB but not that great on the PCB hosting the AC receptacle and the first part of the transient filtering stage.
It is good to see enough thermal paste used on the FETs, to have better contact with the heatsinks. The design uses a full-bridge topology and an LLC resonant converter on the primary side. On the secondary side, a synchronous rectification scheme is used for 12V, and the minor rails are generated through a pair of DC-DC converters. The quality of the bulk cap is not at the same level as the Thermaltake GF3 and Montech Titan Gold units, with similar capacity. The same goes for the cooling fan, which might use a Hydraulic Dynamic Bearing but is from a lesser-known OEM.
