Part Analysis
| General Data | |
| Manufacturer (OEM) | CWT |
| PCB Type | Double-Sided |
| Primary Side | |
| Transient Filter | 6x Y caps, 3x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | NTC Thermistor SCK-20150 (15 Ohm) & Relay |
| Bridge Rectifier |
2x Shindengen LL25XB60 (600V, 25A @ 113°C)
|
| APFC MOSFETs |
2x Infineon IPW60R099P6 (600V, 24A @ 100°C, Rds(on): 0.099Ohm)
|
| APFC Boost Diode |
2x Infineon IDH08G65C6 (650V, 8A @ 145°C)
|
| Bulk Cap(s) | |
| APFC Cut-Off |
Sync Power SPN5003 (reducing no-load consumption)
|
| Main Switchers |
2x Infineon IPW60R099P6 (600V, 24A @ 100°C, Rds(on): 0.099Ohm)
|
| Digital Controllers | 2x Texas Instruments UCD3138A |
| MCU |
Microchip PIC32MM0064GPM036
|
| IC Driver | Silicon Labs Si8233BD |
| Topology | Primary side: Digital, Interleaved PFC, Half-Bridge & LLC Resonant Converter Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 10x Infineon BSC014N04LS (40V, 145A @ 100°C, Rds(on): 1.4mOhm) |
| 5V & 3.3V | DC-DC Converters: 6x UBIQ Semi QN3107M6N (30V, 70A @ 100°C, Rds(on): 2.6mOhm) PWM Controller(s): UPI-Semi uP3861P |
| Filtering Capacitors | Electrolytic: 6x Nippon Chemi-Con (@ 105°C, W) 2x Rubycon (6-10,000h @ 105°C, ZLH) Rubycon (4-10,000h @ 105°C, YXF) Polymer: 7x Nippon Chemi-con, 26x FPCAP |
| Supervisor IC | Weltrend WT7502R (OVP, UVP, SCP, PG) |
| Fan Controller / Micro Controller | Microchip PIC32MM0064GPM036 |
| Fan Model | Corsair NR140P (140mm, 12V, 0.22A, Fluid Dynamic Bearing Fan) |
| 5VSB Circuit | |
| Synchronous Rectification IC |
Leadtrend LD8926AA1
|
| Standby PWM Controller |
On-Bright OB2365T
|
CWT provides the platform, which is semi-digital since the primary side and part of the secondary are handled by digital controllers. Only the minor rails and 5VSB use analog controllers; otherwise, this platform would be fully digital. The HX1000i uses a half-bridge topology on its primary side, while the higher-end models use a full-bridge topology, which is better suited to high-power output. The heatsinks on the primary side are large enough for a modern, efficient platform, while those on the secondary side are tiny. CWT typically uses small heatsinks on the secondary sides of its high-end implementations to lower production costs and save valuable PCB space.
The build quality is high overall, as expected in such an expensive PSU. All parts are high-quality, including Infineon FETs and pure Japanese capacitors from Chemi-Con and Rubycon. The cooling fan is also the typical NR140P, using a fluid dynamic bearing. Although CWT started producing its own fans, Corsair still wants even higher performance and quality.
| Corsair HX1000i Shift (2025) | Corsair HX1000i (2022) |
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Compared to the previous HX1000i I tested back in 2022, the new unit’s design is clearly different, though many of the same parts are used, including the digital controllers and the MCU.
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 15 ohms. Moreover, a bypass relay supports the NTC thermistor.
The two Shindengen LL25XB60 parallel bridge rectifiers can handle up to 50A together.
The interleaved APFC converter uses two Infineon IPW60R099P6 FETs and two Infineon IDH08G65C6 boost diodes. Nippon Chemi-Con and Rubycon manufacture the bulk capacitors. Their combined capacity is 890 μF, and both are rated for 2,000 hours at 105 °C. The voltage rating is 420V, which is higher than the APFC’s DC bus voltage (approximately 380-400V DC).
A pair of digital controllers handles the APFC, the primary switching, and the 12V FETs. We would have a fully digital platform if digital controllers also dealt with the minor rails. The PSU’s brain is a Microchip PIC32MM0064GPM036 MCU, which also handles communication between the system and the PSU’s circuits.
Two Infineon IPW60R099P6 primary-switching FETs are used in a half-bridge topology, and an LLC resonant converter is employed for enhanced efficiency.
The PSU’s main transformer. One of its main functions is to electrically isolate the primary and secondary sides.
Ten Infineon BSC014N04LS FETs regulate the 12V rail.
Two DC-DC converters generate the minor rails. They use six UBIQ Semi QN3107M6N FETs. The PWM controller is a UPI-Semi uP3861P.
Chemi-Con and Rubycon provide the electrolytic capacitors. FPCAP and Chemi-Con make the polymer capacitors.
You can find more information about capacitor performance and other specs below:
The standby PWM controller is an On-Bright OB2365T.
Several polymer caps at the face of the modular panel form an extra ripple-filtering layer.
The soldering quality is decent, but not the best I have seen by CWT. There are some enhanced PCB traces also, to handle high currents without increased losses.
The cooling fan is a Corsair NR140P with a fluid-dynamic bearing.
Ares,Do you intend to test the Rise mode PSU Zeus 1000 watts & 850 Watts PSUs?.
They performed very well on teclab tests, i think they would get a good certification in cybenetics.com if tested