Renesas Electronics Corporation
Search

Chainsaw System

Overview

Chainsaw operation involves rapidly changing loads and requires running at very low or even zero speeds while delivering high torque. Control is primarily achieved through motor systems utilizing a sensorless BLDC algorithm. Field-Oriented Control (FOC) offers significant benefits, including cost reduction, enhanced reliability, and resilience in harsh environments. This fully validated chainsaw system, tested on actual chainsaws, empowers customers to address complex design challenges and accelerate their product development cycles, ensuring faster entry to the market.

System Benefits:

  • FOC control with Flux + HFI supports zero-speed startup, low speed, and high torque while providing low noise, smooth control, and high performance.
  • The inverter board can drive motors up to 54V/70A (peak).
  • A turnkey system with design files.
  • Chainsaw
  • Power tools

Block Diagram

Select a block to discover products for your design

Available on Lab on the Cloud - Use our PC-based GUI to instantly start configuring and testing.

Launch Lab on the Cloud
4:3 ratio Connector Arrow.132 Connector Arrow.131 5V 5V 5V Connector Arrow Sheet.1 Sheet.2 Sheet.3 Sheet.4 CN024-5 CN024-5 CN024-5 Tri component Component block.745 Component block.631 Half-Bridge Driver Half-Bridge Driver Half-Bridge Driver PMIC PMIC PMIC Buck 100V Buck 100V Buck100V Tri component.17 Component block.745 Component block.631 Op Amp Op Amp Op Amp Connector Line.94 Connector Line.95 Connector Line.96 Motor-DC Sheet.98 Sheet.99 M M Sheet.100 Relay Switch Component block.35 Sheet.107 Sheet.108 Sheet.109 Sheet.110 Inductor Sheet.112 Sheet.113 Sheet.114 Connected signals arrow Connector Arrow.127 Connector Arrow.129 Connector Arrow.130 Connected signals arrow.134 Connector Arrow.135 Vertical Wire Bundle 3 3 3 Sheet.138 Vertical Wire Bundle.139 3 3 3 Sheet.141 Vertical Wire Bundle.142 6 6 6 Sheet.144 24V 24V 24V 12V 12V 12V VIN 54V VIN 54V VIN 54V Battery Li-ion Sheet.150 Sheet.151 Li-Ion LI-ION LI-ION Connector Line.153 Connector Line.154 Connector Arrow.155 Connector Arrow.128 Sheet.173 MCU MCU MCU ADC ADC ADC GPIO GPIO GPIO PWM PWM PWM Sheet.176 MOSFET MOSFET MOSFET FET n-channel FET n-channel Sheet.23 Sheet.24 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Circle FET n-channel.33 FET n-channel Sheet.35 Sheet.36 Sheet.37 Sheet.38 Sheet.39 Sheet.40 Sheet.41 Circle.42 FET n-channel.44 FET n-channel Sheet.46 Sheet.47 Sheet.48 Sheet.49 Sheet.50 Sheet.51 Sheet.52 Circle.53 FET n-channel.55 FET n-channel Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Circle.64 FET n-channel.66 FET n-channel Sheet.68 Sheet.69 Sheet.70 Sheet.71 Sheet.72 Sheet.73 Sheet.74 Circle.75 FET n-channel.77 FET n-channel Sheet.79 Sheet.80 Sheet.81 Sheet.82 Sheet.83 Sheet.84 Sheet.85 Circle.86 Connector Line Connector Line.89 Connector Line.90 Resistor - Fixed Resistor - Fixed.92 Resistor - Fixed.93

PMIC

Buck Regulators (Integrated FETs)

MCU

RA Arm Cortex-M MCUs

Half-Bridge Driver

Half-Bridge FET Drivers

MOSFET

Power MOSFETs

Op Amp

General-purpose Op Amps

Videos & Training

Chainsaw System Demo

Watch this demo of our Chainsaw System, showcasing its ability to handle rapidly changing loads with precision. This system features sensorless BLDC and Field-Oriented Control (FOC) with Flux + HFI, enabling zero-speed startup, high torque at low speeds, and smooth, quiet operation. Designed for motors up to 54V/70A (peak) and tested on real chainsaws, it offers a turnkey system with available design files—accelerating product development and market entry. 

See how this reliable, cost-efficient system enhances chainsaw performance, even in the toughest environments.

Video List
Chainsaw System Demo

News & Blog Posts

Power Up Your Tools: Advanced Motor Control for Unmatched Performance and Efficiency Blog Post Feb 5, 2025