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Portable Power System

Overview

This portable power system is designed for versatile, high-powered charging with multiple input and output options. It supports USB Power Delivery (PD), delivering up to 240W from vehicle power to a USB Type-C® interface, and features a digital power charger capable of 3.6kW. The system includes a digitally controlled buck-boost battery charger with a USB Type-C Port Controller (TCPC) for both charging and discharging, along with solar charging capability and a fuel gauge IC for precise battery management. Built for rapid prototyping, it leverages Renesas evaluation boards, reference designs, and software, enabling quick development and testing. This system is ideal for mobile power banks, off-grid energy solutions, and portable power sources for field applications.

System Benefits:

  • 240W charger with bi-direction functionality compliant with the USB Power Delivery (PD) 3.1 Extended Power Range (EPR) standard.
  • 3 to 10 series Li-ion battery fuel gauge IC that integrates an MCU and analog front-end (AFE) within a single package.
  • 3.6KW bi-directional power factor correction (PFC) and dual active bridge (DAB) systems for high efficiency.

Block Diagram

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WS059 Connector Arrow.115 1-3ph AC Load Output/ 1-3ph AC Load Output/ Charger Input 240V/110V 1-3ph AC Load Output/Charger Input240V/110V 240W USB PD Sink/Source Board 240W USB PD Sink/Source Board 240W USB PD Sink/Source Board Connector dotted arrow.301 Connector Arrow.305 Load Load Load Charging Charging Charging 12V Buck 12V Buck 12V Buck 240W USB PD Sink/Source Board 240W USB PD Sink/Source Board 240W USB PD Sink/Source Board DC Supply 12V Label Text 10pt.262 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Sheet.32 Sheet.33 Sheet.34 Sheet.35 Sheet.36 Sheet.37 Mains Input 110-240VAC Mains Input 110-240VAC Mains Input 110-240VAC Connector Arrow.44 Connector dotted arrow Central Control Board Central Control Board Central Control Board Connector Arrow.49 DC/DC, LDOs DC/DC, LDOs DC/DC, LDOs Fan.192 Sheet.125 Sheet.126 Sheet.127 Sheet.128 Sheet.129 Sheet.130 Sheet.131 Sheet.132 Sheet.133 Sheet.134 12V/5A Car Battery or other 12VDC Load 12V/5A Car Battery or Other 12VDC Load 12V/5A Car Battery or Other 12VDC Load LED Sheet.137 Sheet.138 Sheet.139 Sheet.140 Sheet.141 Sheet.142 Sheet.143 Sheet.144 Sheet.145 Sheet.146 Power Attach, Display Driver, LED(s) Driver(s), Torch Power Attach, Display Driver, LED(s) Driver(s), Torch Power Attach, Display Driver, LED(s) Driver(s), Torch 1x-3x USB-A 12W 1x-3x USB-A 12W, 5V/2.4A 1x-3x USB-A 12W, 5V/2.4A 12V Car Connector 12V Car Connector 12V Car Connector Input Power from AC/DC Adapter or Solar Input Power from AC/DC Adapter or Solar Input Power from AC/DC Adapter or Solar Sheet.55 Sheet.56 Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 Sheet.65 Sheet.66 Sheet.67 To Load To Load To Load Connector Arrow.236 Connector Arrow Buck-Boost Charger Buck-Boost Charger Buck-Boost Charger Connector Arrow.228 Connector Arrow.242 Sheet.243 Solar Panel Solar Array Solar Array Solar Array Connector Arrow.244 Connector Arrow.250 WS059 WS059 WS059 Multi-Cell Li-ion Battery Multi-Cell Li-ion Battery Multi-Cell Li-ion Battery Sheet.152 Battery Li-ion Sheet.154 Sheet.155 Label Text 10pt.70 LI-ION LI-ION Battery Li-ion.10 Sheet.158 Sheet.159 Label Text 10pt.70 LI-ION LI-ION Battery Li-ion.14 Sheet.162 Sheet.163 Label Text 10pt.70 LI-ION LI-ION Fuel Gauge Fuel Gauge Fuel Gauge Bi-directional Bi-directional.288 Bi-directional PFC + DC/DC Bi-directional PFC + DC/DC Bi-directional PFC + DC/DC 240W USB PD AC/DC Adapter 240W USB PD AC/DC Adapter 240W USB PD AC/DC Adapter Smart Solar Battery Charger Smart Solar Battery Charger Smart Solar Battery Charger 100W USB Type-C DC Input Module 100W USB Type-C DC Input Module 100W USB Type-C DC Input Module Tri component Component block.745 Component block.631 Buck Buck Buck Connected signals arrow Connected signals arrow.316 Connector Arrow.317 Sheet.325 Sheet.326 Sheet.327 Sheet.328 Sheet.329 Sheet.330 Sheet.331 Sheet.332 Sheet.333 Sheet.334 Sheet.335 Sheet.336 Sheet.337 Charge Gun Sheet.339 Sheet.340 USB Plug Sheet.353 Sheet.354 Sheet.355 Sheet.356 Sheet.357 Plug Sheet.359 Sheet.360 Sheet.361 Sheet.362

Central Control Board

RA Arm Cortex-M MCUs

Fuel Gauge

Battery Fuel Gauges
Battery Fuel Gauges

Buck

Buck Regulators (Integrated FETs)

12V Buck

Buck Regulators (Integrated FETs)

Smart Solar Battery Charger

This system optimizes solar energy with MPPT and buck-boost, enabling efficient charging, adjustable voltage, programmable rates, and robust battery protection for maximum performance.
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240W USB PD AC/DC Adapter

This 240W USB PD 3.2 EPR power supply ensures high efficiency (>94%), compact design, and compliance with EU USB-C standards, delivering reliable power with ZVS for minimal losses and better thermals.
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100W USB Type-C DC Input Module

This system features dual USB Type-C ports with Power Delivery, PPS (3.3–21V), firmware updates, and authentication, plus LED indicators and robust protection for over-temperature and current safety.
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Bi-directional PFC + DC/DC

This system delivers 3.6kW bi-directional conversion and 10kW PFC using Renesas MCU, GaN FETs, DAB and totem-pole topologies, achieving >98.5% efficiency with streamlined, high-power design capabilities.
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Documentation

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Videos & Training

Renesas' Portable Power System utilizes advanced USB Type-C® and Power Delivery technology to deliver up to 240W of versatile, high-powered charging for a wide range of devices, including laptops, power tools, and small appliances. With multiple input options, intelligent battery management, and robust safety features, this solution combines Renesas’ leading-edge ICs for efficient, reliable, and flexible portable power, enabling innovation wherever it is needed.

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