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Reference Design Board, TMC4671/TMC6100, Ventilators / Respirator System


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Product Overview

TMC4671-TOSV-REF is an open source reference design for ventilators / respirator systems. It is a BDLC servo driver for voltages from +12V to +36V and motor RMS phase currents up to 6A. It offers a wide range of connectivity with its SBC connector in Raspberry Pi style, the add-on board header for a standard or custom pressure sensor add-on board, and general purpose I/O. Communication is via standard TTL UART or RS485 (when using the standard add-on board TOSV-SENSOR-REF).
  • Servo controller w/ Field Oriented Control (FOC)
  • Torque control (FOC), velocity control, position control
  • Integrated ADCs, ∆Σ-ADC Frontend
  • Encoder engine: hall analogue/digital, encoder analogue/digital
  • Supports 3-phase PMSM/BLDC, 2-phase stepper motors and 1-phase DC motors
  • Fast PWM Engine (25kHz ... 100kHz)
  • Application SPI + debug (UART, SPI)
  • Step-direction interface (S/D)


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TMC4671, TMC6100

Motor Driver

Ventilators / Respirator System




Reference Design Board TMC4671, TMC6100


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Technical Documents (2)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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