Drive Electronics and Accessories


Getting Started?

TTP Ventus recommends that customers start with the Evaluation Kit, which enables rapid evaluation of the pump, without any upfront development effort. The kit implements a range of commonly-used functions, including closed-loop pressure/vacuum control, and contains everything necessary to start testing: two pumps of your choice, drive electronics with integrated pressure sensor, power supply, PC application for configuration, control and data logging, together with tubing, connectors and filters.


Drive PCBs

Fast Response Drive PCB Cost Optimised Drive PCB
Part Number 59017-200-0002 59017-200-0003
Description Highly responsive PCB best suited for applications that require rapid on/off speed and/or high-speed control of pressure, vacuum or flow. Low cost drive PCB with lower output control bandwidth. This PCB also offers highest efficiency.
Full-scale response bandwidth 20 Hz 8 Hz
50% response bandwidth 150 Hz 25 Hz
Peak drive efficiency 65 % 85 %
Supply voltage 3 to 5 V
Power consumption (including pump) 0 to 2.5 W, depending on pump drive level 0 to 2 W, depending on pump drive level
Electrical control interfaces • 3x analog inputs
• 1x Pump enable digital gating signal
• UART

Download TN011: Drive PCB Performance Comparison pdf617.51 kB for a detailed performance comparison of TTP Ventus' two drive PCB designs.

Integration


  • Both Drive PCBs share the same pinout and electrical interface, meaning they can be used interchangeably.
  • The Drive PCBs are designed to be mounted on a set of 0.5” (1.27 mm) pitch single inline headers. No additional mechanical restraint is required.
  • Dimensions for the Drive PCBs are shown in millimetres.

Breakout PCB


Either Drive PCB can be mounted on the Breakout PCB, which presents the PCB electrical interface on two 0.1” (2.54 mm) single inline headers, suitable for integration with 0.1” prototype board, enabling rapid prototyping and testing at the start of the development process.

Resources


GitHub code snippet library

Our GitHub code snippet library provides examples of how to control the Disc Pump Evaluation Kit independently of the TTP Ventus Pump Control App. The initial examples provided cover a range of functions, including turning the pump on and off, setting drive power, closed loop control of pressure and reading back and plotting data.

The code snippet library, which is hosted on GitHub, is intended to support customers after their initial evaluation of our pump technology, as they move on to developing prototypes and products. We welcome suggestions for how we can improve and build upon this repository; please feel free to share your ideas, feature requests and any bugs you identify with us at support@ttpventus.com.

TN003 - Communications Guide pdf364.61 kB

Technical note covering the serial communications protocol used to control the Disc Pump Drive PCB from your own system - either via the USB-Serial link provided by the motherboard, or via the 2.5 V UART interface of the Drive PCB.

TN004 - Disc Pump Driver PCB pdf832.28 kB

Technical note providing information to aid the integration of the Disc Pump Drive PCB with your system.

TN011 - Drive PCB Performance Comparison pdf617.51 kB

Technical note providing a performance comparison for TTP Ventus' two drive PCB designs above.

TN001: Disc Pump Drive Guide

[by request]
Techncial note covering the basics of the lock-in circuit, including recommended drive waveforms, drive algorithms, and a reference circuit. We are also able to provide reference firmware.

Disc Pump™ Electronics Reference Design Package

[by request]
A package containing PCB and firmware reference designs together with supporting technical guides is available upon request. This provides everything necessary for customers to design their own drive electronics.

Evaluation Kit Manual and Software

[by request]
The manual and application software for the Evaluation Kit are provided with the kit on a USB stick. Please contact us if you need a replacement copy.