XPG Pylon 750 W Review 12

XPG Pylon 750 W Review

Voltage Regulation Stability & Ripple »

Component Analysis

Before reading this page, we strongly suggest a look at this article, which will help you understand the insides of a PSU better.

XPG Pylon 750W Parts Description
General Data
Manufacturer (OEM)CWT
PCB TypeSingle-sided
Primary Side
Transient Filter4x Y caps, 2x X caps, 2x CM chokes, 1x MOV, 1x CAP200DG (discharge IC)
Bridge Rectifier(s)1x GBU1506 (600 V, 15 A @ 100 °C)
Inrush Current ProtectionNTC Thermistor (SCK - 2R58) (2.5 ohm)
APFC MOSFETs2x Great Power GP28S50G (500 V, 28 A, Rds (on): 0.125 ohm)
APFC Boost Diode1x On Semiconductor FFSP0665A (650 V, 6 A @ 153 °C)
Bulk Cap(s)1x Nippon Chemi-Con (400 V, 470 uF, 2,000 h @ 105 °C KMW)
Main Switchers2x Great Power GP23S60HX
PFC / PWM Combo ControllerChampion CM6800TX & Champion CM03X
TopologyPrimary Side: APFC, double-forward
Secondary Side: semi-synchronous rectification (12V) & DC-DC converters (5V & 3.3V)
Secondary Side
+12 V

2x PFC PFR40V60CT SBR (60 V, 40 A)
2x Advanced Power Electronics AP6N3R5P FET (60 V, 80 A @ 100 °C, Rds (on): 3.58 mOhm)
1x Sync Power SP6019 Driver IC

+5 V & +3.3 VDC-DC Converters:
4x Sync Power SPN3006 (30 V, 57 A @ 100 °C, Rds (on): 5.5 mOhm)
PWM Controllers:
ANPEC APW7159C
Filtering CapacitorsElectrolytic:
5x Elite (2–5,000 h @ 105°C, ED)
4x Elite (2–5,000 h @ 105°C, EK)
3x Elite (4–10,000 h @ 105°C, EY)
2x Elite (3–6,000 h @ 105°C, EV)
1x Elite (3–6,000 h @ 105°C, EG)
2x Elite (2,000 h @ 105°C, PF)

Polymer: 2x Elite
Supervisor ICIN1S429I - DCG
Fan ModelHong Hua HA1225H12F-Z (120 mm, 12 V, 0.58 A, fluid dynamic bearing fan)
5VSB Circuit
Standby PWM ControllerPower Integrations TNY287PG


This is CWT's CSB-A platform; it uses a double forward topology on the primary side. On the secondary side, we find FETs and SBRs, which regulate the +12 V rail, and a pair of VRMs for the generation of the minor rails. This is a budget platform with small heatsinks and a clean design for increased airflow.


The transient filter has all the necessary components to effectively filter conducted EMI emissions.


An MOV handles voltage surges, while an NTC thermistor keeps inrush currents under control. There is no bypass relay for the thermistor because it would affect the price.


The single bridge rectifier is bolted to a heatsink, which allows it to handle more amperes.


The APFC converter uses two Great Power FETs and a single boost diode, which can handle 6 A. The bulk cap is by Chemi-Con and has the maximum capacity this platform can support (a higher capacity bulk cap wouldn't fit inside this platform without a re-design).


The combo APFC/PWM controller is a Champion CM6800, and the CM03X by the same manufacturer is also used to restrict vampire power.


The main FETs are two Great Power GP23S60HXs arranged into a half-bridge topology.


The main transformer of the PSU.


A combination of FETs and SBRs are used to regulate the +12 V rail.


XPG managed to find Elite caps for its Pylon units, which are the best alternative to Japanese caps.


Two DC-DC converters generate the minor rails. The joint PWM controller is an ANPEC APW7159C.


The standby circuit uses a Power Integrations TNY287PG PWM controller.


The supervisor IC is an IN1S429I - DCG, for which there is no data available on the internet.


Soldering quality is good.


The cooling fan is provided by Hong Hua and uses a fluid dynamic bearing. It is nice to see an FDB fan used in this category.
Next Page »Voltage Regulation Stability & Ripple
View as single page
Oct 13th, 2024 10:32 EDT change timezone

New Forum Posts

Popular Reviews

Controversial News Posts