RageBridge 2 from Equals Zero Designs is a no-frills and robust dual-channel DC motor controller for robotic and vehicular drivetrain applications. It can supply 40 amps per side continuously and up to 90A in bursts dependent on cooling conditions. An ultra-wide (8 to 40 volts) input range maximizes versatility and allows it to be used in many different systems. It can operate as two independent motor control channels, or be combined into a single-channel controller for driving larger motors. It can take analog, R/C radio, and TTL serial inputs. A large and fully isolated heat sink base allows you to attach it to a metal chassis for even better thermal performance. RageBridge 2 is truly a controller you will not “grow out of”!
RageBridge 2 is a dual H-bridge allowing control of up to two DC brush motors independently, integrated onto a single board. The switching topology of RageBridge 2 is known as “synchronous rectification“. In this method, the motor is always being alternately powered and then braked. While it may sound unnecessarily complicated, it significantly decreases heat dissipation in both motor and power MOSFETs because current is never just being burnt off as heat for a portion of the switching cycle. The result is a controller that can handle more power in a smaller package.
Additionally, the bidirectional current flow means the battery supply gets recharged when the motor is undergoing braking, with energy supplied from the kinetic energy of the moving drivetrain or actuator. This translates to an increase in run time of a few percent in most cases.
Don’t miss out on this out-Rage-ously powerful gadget!
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.