High-efficiency, high-density AC/DC and multi-rail power conversion for desktops, workstations, gaming systems and compact industrial PCs.
High-density power conversion for modern desktop and workstation platforms
PC power supplies convert a universal AC input into stable, low-noise rails for processors, graphics cards, storage, memory and peripheral loads. The architecture combines active PFC, an isolated high-voltage DC/DC primary stage, synchronous secondary rectification, point-of-load DC/DC buck conversion, protected auxiliary power and a main controller that coordinates startup, standby, regulation, protection and ATX system signaling.
Key advantages
Universal AC input
High power factor
80 PLUS efficiency targets
High power density
Low standby power
Stable 12 V main rail
Efficient 5 V / 3.3 V rails
Fast transient response
Protected startup and shutdown
Reduced thermal and fan load
ATX control compatibility
Scalable output power
PC power architecture and product mapping
PC Power Supply Architecture
AC input protection, active PFC, isolated high-voltage DC/DC conversion, synchronous rectification, multi-rail buck conversion, auxiliary standby power and coordinated ATX control.
Tip: Select a block in the diagram or choose a module from the list. On mobile, swipe horizontally to view the full diagram.
Explore the PC power architecture through an interactive image map. Select PFC, the isolated primary stage, synchronous rectification and DC/DC buck conversion, auxiliary power, or the main controller to review its design role and recommended MOT device categories.
About the solution
Efficient AC/DC and multi-rail conversion for demanding PC loads
The solution combines active PFC, an isolated LLC or phase-shifted primary converter, synchronous secondary rectification, dedicated buck conversion for 5 V and 3.3 V rails, a protected 5 V standby supply and coordinated main control. This staged architecture supports high efficiency, stable regulation, fast load response and predictable startup across wide AC input and output-power conditions.
Designed for desktops, gaming PCs, workstations and compact industrial computers
The architecture can be scaled for mainstream ATX supplies, high-power GPU systems, workstation platforms, small-form-factor PCs and embedded computing equipment. Rail sequencing, standby operation, fan management and comprehensive protection help support modern processors and graphics cards with rapid, repetitive load transients.
Power devices and control functions aligned with every major conversion stage
High-voltage PFC and primary-stage MOSFETs, gate drivers, resonant and PWM controllers, low-resistance synchronous-rectifier and buck MOSFETs, standby-power devices, supervisors, sensing amplifiers and fan-control components form a practical semiconductor platform for modern PC power-supply designs.
Efficient AC/DC and multi-rail conversion for demanding PC loads
The solution combines active PFC, an isolated LLC or phase-shifted primary converter, synchronous secondary rectification, dedicated buck conversion for 5 V and 3.3 V rails, a protected 5 V standby supply and coordinated main control. This staged architecture supports high efficiency, stable regulation, fast load response and predictable startup across wide AC input and output-power conditions.
Designed for desktops, gaming PCs, workstations and compact industrial computers
The architecture can be scaled for mainstream ATX supplies, high-power GPU systems, workstation platforms, small-form-factor PCs and embedded computing equipment. Rail sequencing, standby operation, fan management and comprehensive protection help support modern processors and graphics cards with rapid, repetitive load transients.
Power devices and control functions aligned with every major conversion stage
High-voltage PFC and primary-stage MOSFETs, gate drivers, resonant and PWM controllers, low-resistance synchronous-rectifier and buck MOSFETs, standby-power devices, supervisors, sensing amplifiers and fan-control components form a practical semiconductor platform for modern PC power-supply designs.
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