EVL599IND-250W Demonstration Board

Introduction

The STMicroelectronics EVL599IND-250W is a 250 W AC-DC converter demonstration board designed for industrial power-conversion development. It provides a compact reference platform for converting universal mains input into a regulated 24 V DC output.

Part Description

The EVL599IND-250W demonstration board combines a transition-mode power-factor-correction (PFC) preregulator with an LLC resonant half-bridge converter. This architecture supports efficient, isolated AC-DC conversion while helping designers evaluate modern high-power supply topologies.

The board accepts a wide 90 to 265 Vac input range, making it suitable for equipment intended for international mains operation. It delivers a 24 V DC output at up to 250 W and incorporates synchronous rectification to reduce secondary-side losses. Its efficiency exceeds 90%, supporting reduced thermal load and improved overall system performance.

With dimensions of approximately 165 mm by 65 mm, the board offers a compact format for bench evaluation, prototype development, and industrial power-supply design studies.

Applications

Potential applications include:

• 24 V industrial control power supplies
• Programmable logic controller and automation systems
• Factory sensors, actuators, and field devices
• Motor-control and motion-control equipment
• Industrial LED lighting systems
• Point-of-sale and kiosk equipment
• Security, access-control, and surveillance equipment
• Telecommunications and networking hardware
• Battery charging front ends
• General-purpose 24 V embedded systems

Industries

Possible industries for the EVL599IND-250W include:

• Industrial automation
• Manufacturing and robotics
• Building automation
• Energy management
• Telecommunications
• Transportation infrastructure
• Commercial lighting
• Security and surveillance
• Test and measurement
• Smart infrastructure and IoT systems

Usage Ideas

1. Industrial 24 V Supply Prototype
   Use the board as the main DC power stage for a prototype PLC cabinet, supplying control electronics, relays, sensors, and communication modules.

2. Motor-Control Evaluation System
   Pair the converter with a 24 V motor driver and controller board to develop a compact low-voltage motion-control or actuator platform.

3. Smart Lighting Controller
   Build an industrial lighting test platform that uses the 24 V output to power LED driver modules, a microcontroller, and networked lighting controls.

Conclusion

The STMicroelectronics EVL599IND-250W is a practical reference design for evaluating a high-efficiency 250 W, 24 V AC-DC power supply. Its universal AC input range, transition-mode PFC stage, LLC resonant converter, and synchronous rectification make it well suited to industrial power-development projects requiring compact size, isolation, and efficient operation.