| General Data | |
| Manufacturer (OEM) | Great Wall |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK-205R0 (5 Ohm @25°C) & Relay |
| Bridge Rectifier(s) |
2x GBU2510 (1000V, 25A)
|
| APFC MOSFETs |
2x ROHM SEMICONDUCTOR R6047ENZ4 (600V, 47A @ 25°C, Rds(on): 0.072Ohm)
|
| APFC Boost Diode |
1x CREE C6D10065A(650V, 10A @ 155°C)
|
| Bulk Cap(s) | |
| Main Switchers |
2x ROHM SEMICONDUCTOR R6035VNX3 (600V, 35A @ 25°C, Rds(on): 0.119Ohm)
|
| IC Driver | |
| APFC Controller | |
| Resonant Controller |
1x Champion CM6901X
|
| Topology |
Primary side: APFC, Half-Bridge & LLC resonant converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x Advanced Power Electronics Corp AP4N1RCMT-A (45V, 32A @ 70°C, Rds(on): 1.8mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x Infineon 040N03L (30V, 76A @ 100°C, Rds(on): 4mOhm) PWM Controller(s): 1x ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: 6x Nippon Chemi-Con (2-5,000 @ 105°C, KZE), 1x Rubycon (6-10,000 @ 105°C, ZLH), 2x Rubycon (2-10,000 @ 105°C, YXF), 1x Rubycon (3-6,000 @ 105°C, YXG), 2x Rubycon (4-10,000 @ 105°C, YXJ) Polymer: 11x FPCAP, 13x NIC, 6x Nichicon (LG) |
| Supervisor IC | 1N1S4291-SCG |
| Fan Model | HA13525M12F-Z (135mm, 12V, 0.36A, Fluid Dynamic Bearing Fan) |
| 5VSB/12VSB Circuit | |
| Standby PWM Controller | Power Integration TNY278PN |
This is a typical modern platform featuring good soldering quality and top-notch parts, which is why the price is high. The best Japanese capacitors and Infineon FETs don’t come cheap. On the solder side of the PCB, the soldering quality is good, which is expected given that Great Wall uses state-of-the-art equipment, but there is nothing to see since all parts are on the other side of the PCB. A half-bridge topology and an LLC resonant converter are used on the primary side. On the secondary side, a synchronous rectification scheme is used for the 12V rail, which feeds a pair of DC-DC converters to generate the minor rails—the usual stuff for a modern PSU platform.
All capacitors are made by Japanese manufacturers, so they will easily outlive the PSU’s warranty period. The cooling fan is made by Hong Hua, so it is also reliable.
Manufacturer “Great Wall”, in the country with the “Great Wall”.
Fucking comedy 😀