Product Features; Safety And Protection - Corsair AXi Serie Manual

AX i S E R I E S
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Congratulations on the purchase of your new Corsair AX1500i Digital ATX power supply.
The Corsair AX1500i is a groundbreaking new design. It is a departure from traditional PSU
designs and is packed with features that will make building your ultimate dream PC even
more enjoyable. The AX1500i introduces some new and exciting technologies, so please
read below for more information.

Product features

Digitally controlled power
Unlike traditional power supply designs, the Corsair AX1500i use a Digital Signal Processor
(DSP) for optimized efficiency and tighter voltage regulation, which improves overall
system stability and component reliability.
Quiet, efficient operation
Upgrading to digital provides increased efficiency. The AX1500i is certified 80 PLUS®
Titanium, which results in lower heat generation and a quieter fan profile. The AX1500i is so
efficient that the 140mm fan doesn't even spin at low loads for completely noiseless power
delivery.
Corsair Link
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The built-in Corsair Link ™ functionality shows you how your AX1500i is performing at any
given moment and lets you quickly tweak its performance. Server-inspired diagnostic tools
monitor real-time efficiency, power usage, configurable over-current protection points and
fan profiles.
Brilliant design
The fully modular cables make it easy to install and the self-test switch lets you quickly
determine if the power supply is functioning normally before you even attach cables to
your motherboard.
Technology and benefits
• Digital control
The AX1500i features an advanced control architecture to produce outstanding
dynamic response. It features a true digital engine that provides superior on-the-fly
performance optimization across the full operating range while maintaining stable
operation.
• 80 PLUS ® Titanium Efficiency
The sophisticated electrical design, incorporating advanced hybrid digital control and
state of the art magnetics delivers extremely high energy efficiency (94%).
• Outstanding DC voltage regulation
Due to its digital design, the AX1500i delivers exceptionally stable power over the
whole load range and automatically compensates for DC output cable voltage drop,
ensuring tight DC output voltage regulation without the ripple/noise, transient
response, and converter stability drawbacks associated with conventional power
supply designs.
• Low DC output voltage ripple and noise
The AX1500i features individual DC-DC regulation for 3.3V, 5V and 12V rails, and
secondary side synchronous rectification, utilizing MOSFETs that have lower losses
than the conventional output rectification schemes. An advanced 4-layer modular
connector board PCB ensures a better ground return plane, lower resistance and low
voltage drops. This, combined with circuit trace optimization and advanced filtering
techniques, helps to minimize ripple and noise.
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• Reduced component count and increased reliability
The digital control of the AX1500i eliminates many external components required
by more conventional PSU solutions to offer an extremely small, high density, high
reliability solution that allows incremental space to add extra features — like real time
parameter monitoring and power supply control.
User friendly features
• Fully modular cable system
The fully-modular, low-profile cable system provides maximum flexibility when
building or upgrading your PC, and maximum airflow through your chassis.
This allows you to utilize only the cables that you need, reducing cable clutter
and maximizing the cooling performance of your PC.
• Self test switch
The power supply can be validated prior to system installation via a self test switch,
which confirms all DC output voltage rails are present and the fan is functional.

Safety and protection

• Over-voltage protection (OVP)
Over-voltage protection for the 12V, 5V and 3.3V DC outputs is required to comply
with the ATX specification. OVP shuts down the PSU in the event that the DC outputs
exceed a set level, determined by the PSU manufacturer. The minimum voltage levels
required for compliance are 13.4V for the +12V rail(s), 5.74V for the +5V rail and 3.76V
for the 3.3V rail.
• Over-current protection (OCP)
The AX1500i features OCP on the 3.3V, 5V and 12V rails. OCP ensures that the output
of the DC voltage rails remains within safe operating limits. The
configured as a single rail or multi-rail OCP solution.
• Over-temperature protection (OTP)
OTP ensures that the PSU will shut down when the internal temperature reaches a set
point. This is usually as a result of internal current overloading or a fan failure.
• Short-circuit protection (SCP)
A short-circuit is defined as any output impedance of less than 0.1 ohms. Amongst
other things, SCP ensures that the PSU shuts down should the 3.3V, 5V and 12V rails
short to any other rail, or to ground. It also ensures that no damage should occur to
the unit, or your PC's components, in the event of a short.
AX i S E R I E S
AX1500i can be
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