Part Analysis
| General Data | |
| Manufacturer (OEM) | Shenzhen Xinweiye Technology |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor MF72 10D-20 (10 Ohm) & Relay |
| Bridge Rectifier(s) |
2x GBU25KH (800V, 25A @ 25°C)
|
| APFC MOSFETs |
2x Way-On WMJ36N65F2 (650V, 20A @ 100°C, Rds(on): 0.11Ohm)
|
| APFC Boost Diode |
1x Maplesemi MSNP10065G1 (650V, 10A @ @ 135°C)
|
| Bulk Cap(s) | |
| Main Switchers |
2x Way-On WMJ36N65F2 (650V, 20A @ 100°C, Rds(on): 0.11Ohm)
|
| IC Driver |
1x Novosense NSi6602
|
| APFC Controller | |
| Resonant Controller |
Champion CM6901X
|
| Topology |
Primary side: APFC, Half-Bridge & LLC Resonant converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x Infineon ISC012N04LM6 (40V, 168A @ 100°C, Rds(on): 1.2Ohm) |
| 5V & 3.3V | DC-DC Converters: 4x Way-On WMO80N03T1 (30V, 50.6A @ 100°C, Rds(on): 5mOhm) PWM Controller(s): ANPEC APW7159C |
| Filtering Capacitors | Electrolytic: 7x Nippon Chemi-con (2-5,000h @105°C, KZE) 1x Nippon Chemi-con (5-6,000h @105°C, KZH) 2x Rubycon (6-10,000h @105°C, YXG) 2x Rubycon (6-10,000h @105°C, ZLH) 1x TK (@105°C, SZ) Polymer: 35x Chemic-con (PXG), 4x Unknown Brand |
| Supervisor IC | GRENERGY GR8329E (OVP, UVP, OCP, ) |
| Fan Model | Hong Hua HA13525H12F-Z (135mm, 12V, 0.50A, Fluid Dynamic Bearing Fan) |
| 5VSB | |
| Rectifier |
1x SB1045L SBR (45V, 10A)
|
| Standby PWM Controller |
Chipown PN8141
|
The OEM is Shenzhen Xinweiye Technology, and the platform features a clean design with ample room for adequate cooling, despite its small PCB. Speaking of small PCBs, I must admit that I am not a fan of PSU downsizing, and I often express this opinion. This is because small PCBs typically result in equally small distances between parts, as well as the use of smaller-diameter fans. This is not the case, though, here, with a considerable distance between parts and a 135mm fan. Still, the fan speed profile is rather aggressive.
Continuing with the platform’s description, the main transformer is small, occupying minimal space. Right next to it, the vertical PCB hosts the heatsinks and the power transfer traces to the 12V FETs, to drastically reduce the distance and, consequently, power losses. The capacitors on the secondary side are clear, allowing for unobstructed airflow, which boosts their lifetime due to the lower operating temperatures. The DC-DC converters handling the minor rails are also installed on a daughter board, at the side of the main PCB.
The transient filtering stage contains all the necessary components to block both incoming and outgoing EMI emissions. Typically, it starts at the AC receptacle and continues on the main PCB.
There is an MOV to protect from voltage surges and an NTC thermistor with a resistance of 10 ohms. Moreover, a bypass relay supports the NTC thermistor.
The two GBU25KH parallel bridge rectifiers can handle up to 50A together, so they are more than enough to cover this platform’s needs.
The APFC converter uses two Way-On WMJ36N65F2 FETs and one Maplesemi MSNP10065G1 boost diode. Nippon Chemi-con manufactures the bulk capacitors. Their combined capacity is 1040 μF, and they are rated for 2,000 h at 105 °C.
The APFC controller is a Champion CM6500UNX. It is supported by a Champion CM03X, which reduces vampire power consumption.
The two Way-On WMJ36N65F2 primary switching FETs are installed in a half-bridge topology, and an LLC resonant converter is used for higher efficiency.
The LLC resonant controller is a Champion CM6901X.
The PSU’s main transformer.
Six Infineon ISC012N04LM6 FETs regulate the 12V rail. They are installed on the solder side of the main PCB, and a vertical PCB on the other side transfers power to them, and also assists in their cooling.
Two DC-DC converters generate the minor rails.
Chemi-Con and Rubycon provide the electrolytic filtering capacitors. There is also one by TK. The polymer caps are by Chemi-Con and another brand, which I couldn’t identify.
You can find more information about capacitor performance and other specs below:
The supervisor controller is a Grenergy GR8329E.
The standby PWM controller is a Chipown PN8141, and the secondary side rectifier is an SB1045L.
Many polymer caps at the face of the modular panel form an extra ripple-filtering layer.
The soldering quality is good.
The cooling fan is a Hong Hua HA13525H12F-Z, utilizing a fluid dynamic bearing.
Thanks for a review crmaris. Will you be doing a review of PCCooler YS1000?
I think I have them too somewhere 🙂