From efficient and reliable power adapters to safe, optimized battery charging and real-time power monitoring, Renesas offers a broad and robust portfolio of enabling devices and complete solutions, spanning AC/DC adapters, USB Power Delivery (PD) and Extended Power Range (EPR) systems, battery chargers, and intelligent power management.
Supporting designs from compact electronics in the 65–100W range to high-power systems up to 240W, including portable power stations and uninterruptible power supplies, we enable reliable power across a wide range of applications.
Optimized for high conversion efficiency and intelligent power management, our solutions deliver high efficiency to help meet global energy-efficiency requirements.
Our solutions are designed to meet specifications, certifications, and compliance requirements as well as interoperability and safety standards to speed up development, lower risk, and deliver reliable, market-ready systems.
Our devices and systems integrate protection and safeguards such as OVP, OCP, OTP, USB PD–based power derating, and intelligent monitoring for bidirectional power flow, and more to enable smart, flexible, and reliable operation across a wide range of power adapter and charger applications.
We enable power from 65W to 240W from adapters and chargers to high-power systems with USB-PD EPR. With flexible architectures and smart power negotiation, design scalable, future-ready platforms across multiple power levels, applications, and systems.
Converting AC power to DC is a crucial part of power adapters and chargers. When converting AC to DC, design challenges of high-voltage isolation and safety, efficiency when dealing with high power, and thermal density for small or compact form factors is important.
We offer compact and versatile solutions with some of the smallest AC/DC packages on the market with advanced protection, control, and power efficiency.
DC adapters need to handle wide input voltage ranges, operate with high efficiency in their power conversions, be interoperable with multiple sources, and be power and thermal-efficient.
We offer DC adapters to support primary DC/DC conversion, intermediate rails, point-of-load regulation, power sequencing, and more. Our solutions provide high efficiency and low loss as well as built-in protections, just as OVP, OCP, and thermal to ensure power and thermal efficiency in compact designs.
Chargers are an essential system needed to interface between power sources, devices, and battery systems. These systems should be able to strike an optimal balance between fast charge and battery longevity while ensuring thermal management and facilitating capabilities for multiple outputs and bidirectional power flow.
We offer a variety of charger solutions to help your charging needs, from wired to wireless systems, interfaces like USB, multiple device charging, and more.
Batteries are an essential part of many electronic systems to provide portability and enable reliable power while on the go. However, when designing with batteries, there are crucial considerations for safe energy storage and discharge, integration of a battery management system (BMS), cell balancing and protection, and more.
From chips to systems, we offer the essential chips and components for robust, safe, and efficient battery systems for your needs.
Measuring and monitoring power systems is critical for accurate voltage/current measurement, performance, and system-level visibility for safety and optimization.
We enable system visibility into the health, performance, and efficiency of your power systems- from products like battery fuel gauges, current sense amplifiers, and more- while also offering a breadth of resources from starter kits all the way up to reference designs for quick deployment and system integration.
Explore system-level reference designs, evaluation kits, and other resources to get started on your design journey for power adapters and chargers.
Explore the Half-Wave LLC (HWLLC) AC/DC converter topology and its ability to scale a compact, high-efficiency power architecture from 100W-class designs to 500W applications. A 240W USB Power Delivery charging solution serves as the demonstration platform, highlighting zero-voltage switching (ZVS) operation, reduced switching losses, interleaved power factor correction (PFC) control, and two-stage digital control. These techniques help improve efficiency and increase power density for space-constrained power supply designs.
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