Corsair TX-M Series 750 W Review

Name: Corsair TX-M Series 750 W
Brand: Corsair
Price: 99 USD

crmaris

on Jan 12th, 2022,

in Power Supplies.

Manufacturer: Corsair

Voltage Regulation Stability & Ripple »

Component Analysis

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

Corsair TX750M (2021) Parts Description
General Data
Manufacturer (OEM)	Great Wall
PCB Type	Double-Sided
Primary Side
Transient Filter	4x Y caps, 2x X caps, 3x CM chokes, and 1x MOV
Bridge Rectifier(s)	2x Shindengen US15KB80R (800 V, 15 A @ 101 °C)
Inrush Current Protection	NTC Thermistor (SCK-2R58) (2.5 ohm) & Relay
APFC MOSFETs	2x Vishay SiHG33N60EF (600 V, 21 A @ 100 °C, Rds (on): 0.098 ohm)
APFC Boost Diode	1x CREE C3D06060A (600 V, 6 A @ 154 °C)
Bulk Cap(s)	2x Rubycon (450 V, 330 uF each or 660 uF combined, 2,000 h @ 105 °C,MXH)
Main Switchers	2x Advanced Power Electronics AP65SL130DI (650 V, 16.5 A @ 100 °C, Rds (on): 0.13 ohm)
APFC Controller	Champion CM6500UNX & Champion CM03AX
Switching Controller	Champion CU6901VPA
Topology	Primary Side: APFC, half-bridge & LLC converter Secondary Side: synchronous rectification & DC-DC converters
Secondary Side
+12 V MOSFETs	6x Advanced Power Electronics AP4N1R8CMT-A (45 V, 180 A, Rds (on): 1.8 mOhm)
+5 V & +3.3 V	DC-DC Converters: 6x Advanced Power Electronics AP0403GH (30 V, 50 A @ 100 °C, Rds (on): 4.5 mOhm) PWM Controller:ANPEC APW7159C
Filtering Capacitors	Electrolytic: 1x Rubycon (6–10,000 h @ 105 °C, ZLH), 5x Rubycon (4–10,000 h @ 105°C, YXJ) 1x Rubycon (3–6,000 h @ 105 °C, YXG), 1x Nippon Chemi-Con (4–10,000 h @ 105 °C, KY) Polymer: 11x Nippon Chemi-Con, 4x FPCAP
Step-Down DC-DC Converter	Texas Instruments TPS54231
Supervisor IC	IN1S429I-SCG (OVP, UVP, OCP, SG, PGO)
Fan Model	Corsair NR120L (120 mm, 12 V, 0.22 A, rifle bearing fan)
5VSB Circuit
Rectifier(s)	1x Diodes Incorporated SBR10E45P5 SBR (45 V, 10 A)
Standby PWM Controller	Power Integrations TNY278GN

Great Wall provides the platform, and its build quality is pretty good. Despite the compact PCB and 750 W maximum power output, there is plenty of space on the secondary side, so the fan won't have to work hard to provide the necessary airflow. This looks more like a 500 W than a 750 W platform.

The transient filter starts on the AC receptacle with two Y caps and continues on the main PCB with the other parts.

Two metal oxide varistors (MOV) handle voltage surges, while an NTC thermistor suppresses large inrush currents. A bypass relay supports the latter.

The bridge rectifiers are bolted to the primary heatsink. Combined, they can handle up to 30 A of current.

The APFC converter uses two Vishay FETs and a single CREE boost diode. The bulk caps are by Rubycon and have a combined capacity of 660uF.

The APFC controller is a Champion CM6500UNX supported by a CM03AX Green PFC controller.

The two main switching FETs are installed in a half-bridge topology, and an LLC resonant converter is used for higher efficiency. The resonant controller is a Champion CU6901VPA.