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AC-DC converters

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ST AC-DC converters help designers build efficient, reliable power supplies while reducing design complexity for modern switch-mode power supply applications.With solutions ranging from high-voltage converters, power factor correction controllers, PWM controllers, synchronous rectification controllers, and voltage and current controllers, ST portfolio supports a wide range of power levels and topologies.Whether you are designing adapters, chargers, industrial power supplies, LED lighting, server front ends, or consumer equipment, ST solutions enable higher power density, lower standby losses, and easier compliance with stringent energy regulations.

ST AC-DC converters help designers build efficient, reliable power supplies while reducing design complexity for modern switch-mode power supply applications.With solutions ranging from high-voltage converters, power factor correction controllers, PWM controllers, synchronous rectification controllers, and voltage and current controllers, ST portfolio supports a wide range of power levels and topologies.Whether you are designing adapters, chargers, industrial power supplies, LED lighting, server front ends, or consumer equipment, ST solutions enable higher power density, lower standby losses, and easier compliance with stringent energy regulations.

Application

ST AC-DC converters support power conversion systems that need efficient energy transfer, stable regulation, and reliable performance across a broad range of equipment.

AC-DC Converters for Power Supply Design
AC-DC Converters for Power Supply Design
Lighting
Lighting
Battery charger
Battery charger
Data center
Data center
Home appliances
Home appliances
EV charging - DC fast charging stations
EV charging - DC fast charging stations

Product types

From classic standard PWM and PFC controllers to highly integrated resonant and offline converter architectures, ST provides a scalable set of product families for efficient and reliable power supply designs

Digital and resonant controllers
Advanced analog, digital, and combined controllers, that help improve efficiency and power density in resonant and PFC power conversion designs.
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High voltage converters
Integrated offline converters that combine PWM control and high-voltage switching to reduce footprint, improve efficiency, and support robust SMPS designs.
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PFC controllers
PFC controllers
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PWM controllers
A wide range of current-mode, voltage-mode, quasi-resonant, and advanced PWM controllers that give designers flexibility across isolated and non-isolated SMPS topologies.
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Synchronous rectification controllers
High-efficiency controllers that drive secondary-side MOSFETs to replace rectifier diodes, helping reduce losses and improve flyback and LLC converter efficiency.
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Voltage and current controllers

Highly integrated controllers for constant-voltage and constant-current SMPS designs that help simplify development for adapters, chargers, and LED drivers

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Benefits:

ST AC-DC converters help designers build compact, efficient, and reliable power supplies across a wide range of applications and power levels.

  • Broad coverage of AC-DC power conversion architectures
  • High efficiency across load conditions
  • Reduced standby consumption for energy-sensitive designs
  • Improved robustness through integrated protection features
  • Lower external component count and simplified design
  • Scalable solutions from mainstream to advanced systems
  • Support for isolated and non-isolated applications
  • Suitable for industrial, consumer, and high-performance equipment

Featured Products

Compact quasi-resonant PWM controller

for ultra-low standby power supplies

VIPer11 enables ultra-low consumption SMPS for 5-30 V output and ultra-wide range input voltage

Meets the most stringent energy-saving standards

STNRG011

Digital combo multi-mode PFC and time-shift LLC resonant controller

L6562A

Transition-mode PFC controller BCD technology

VIPERGAN65D

New flyback 65W GaN converter delivers space-saving power for cost-conscious applications

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Supported Devices

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:

Power Management Design Center

Power Supply Design Tool

• SMPS design, by topology, by type and by product
• PFC design with analog and digitial control
• Supports various PCB configurations
Choose type:
DC/DC
AC/DC
Solar Battery Charger

Power Management Design Center

LED Lighting Design Tool

• Handles AC-DC and DC-DC design in common topologies
• Displays interactive and annotated schematic
• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC

Power Management Design Center

Digital Power Workbench

• Provides a step-by-step optimized design of power section and control loop
• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Management Design Center

Power Tree Designer

• Specify input/output power for each node in the tree
• Check for consistency
• Design each individual node
Choose design tool:

Thermal-electrical Simulators for Components

STPOWER Studio

• Supports long mission profiles
• Provides power loss and temperature graphs
• Helps define heatsink thermal properties

Thermal-electrical Simulators for Components

PCB Thermal Simulator

• Thermal analysis of a PCB from Gerber files.
• Possibility to add heat sources, heat sinks, copper areas and thermal paths.
• Powerful server-side engine for rendering and simulation.
• Thermal results shown graphically via 2D table.

Thermal-electrical Simulators for Components

AC Switches Simulator

• Select ratings and application waveforms
• Get junction temperature and blocking voltage graphs
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

• Select ratings and application waveforms
• Estimate power losses
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Twister Sim

• Help select the right ViPOWER Automotive power device
• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
• Supports various PCB configurations

Thermal-electrical Simulators for Components

TVS Simulator

• Specify system ratings and surge waveform
• Search and sort suitable devices

Thermal-electrical Simulators for Components

Estimate

• Build simple schematics and firmware inputs in minutes
• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:

Signal Conditioning Design Tool

Active Filters

• Handles multi-stage-designs and common topologies
• Returns circuit component values
• Provides gain, phase and group delay graphs
• Low Pass, High Pass and Band Pass

Signal Conditioning Design Tool

Comparators

• Handles most common configurations
• Returns circuit components values
• Provides I/O signal waveforms
• Inverting, Non Inverting, Window

Signal Conditioning Design Tool

Low side Current Sensing

• Returns circuit component values
• Provides current error graphs

Signal Conditioning Design Tool

High side Current Sensing

• Provides current error graphs.
• Help to select the right High side current sensing and shunt devices.
Choose design tool:

NFC/RFID Calculators

NFC Inductance

• Input geometry and substrate properties
• Get antenna impedance

NFC/RFID Calculators

UHF Link Budget

• Enter forward and reverse link characteristics
• The tool returns link budget estimate

NFC/RFID Calculators

NFC Tuning Circuit

• Enter antenna parameter and matching target
• Select the topology of the matching network
• The tool returns component values for the desired design targets
Webinar: ST-ONE+ MasterGaN World’s highest power density solution for USB-PD chargers

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