XPG Pylon 750 W Review

crmaris

on Feb 10th, 2021,

in Power Supplies.

Manufacturer: XPG

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 Type	Single-sided
Primary Side
Transient Filter	4x 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 Protection	NTC Thermistor (SCK - 2R58) (2.5 ohm)
APFC MOSFETs	2x Great Power GP28S50G (500 V, 28 A, Rds (on): 0.125 ohm)
APFC Boost Diode	1x 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 Switchers	2x Great Power GP23S60HX
PFC / PWM Combo Controller	Champion CM6800TX & Champion CM03X
Topology	Primary 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 V	DC-DC Converters: 4x Sync Power SPN3006 (30 V, 57 A @ 100 °C, Rds (on): 5.5 mOhm) PWM Controllers: ANPEC APW7159C
Filtering Capacitors	Electrolytic: 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 IC	IN1S429I - DCG
Fan Model	Hong Hua HA1225H12F-Z (120 mm, 12 V, 0.58 A, fluid dynamic bearing fan)
5VSB Circuit
Standby PWM Controller	Power 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).