Customer Background & Requirements

The goal of this project was to design and develop a highly efficient, portable, battery-operated mesh nebulizer system. The core requirement was to deliver precise aerosol generation while maintaining extended battery life through intelligent power management. Key features targeted for this development included Variable power output for different usage profiles, Simple intuitive user control, Mod

Solution Provided by Electrobit Technology:

The complete electronic control platform for the nebulizer, with a focus on power efficiency and user feedback. Core Atomization: Implementation of piezoelectric technology to precisely control the mesh vibrator, supporting 1W and 1.5W output modes based on the application requirements.

  • User Interface: A simple user button for initiating the nebulization output.
  • Status Indication: Integration of an RGB LED for clear visual feedback on different operational states (e.g., charging, running low, operating mode).
  • Power Management: Dedicated circuitry for USB charging support and an intelligent Low-Power (Idle) Mode to maximize battery life when the device is not actively nebulizing.
  • Data Storage & Maintenance: Onboard EEPROM memory for essential data storage and USB connectivity for field firmware upgrades.

Services Provided:

  • We managed the entire development lifecycle for the core electronic system
  • Hardware Development
  • Complete schematic design and PCB layout tailored for compact, battery- powered integration.
  • Careful component selection, emphasizing low power consumption and efficient piezo-driver capability.
  • BOM finalization and prototyping runs

Firmware Development

  • Development of low-level driver logic for the USB interface and power management circuitry.
  • Implementation of power-saving algorithms to ensure optimal battery performance in idle states.
  • Creation of application:  layer logic to manage mode switching (1W and 1.5W) based on user input.
  • System Bring-Up & Validation : Successful board bring-up, focusing on validating the power switching between operational and low-power modes, and ensuring correct piezoelectric driver performance
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Challenges Overcome:
The project demanded balancing power-hungry atomization with battery constraints

  • Precision Power Control: Successfully implementing precise control over the piezo drive circuitry to reliably deliver two distinct power levels (1W and 1.5W)Battery
  • Optimization: Designing and implementing the Low-Power/Idle Mode to drastically reduce current draw when the device is inactive, crucial for a portable, battery-operated deviceUser
  • Experience: Ensuring the RGB LED clearly communicates complex internal states (e.g., charging status, low battery, operational mode) to the user.Field
  • Serviceability: Developing a robust Firmware Upgrade Over USB mechanism accessible from a standard laptop/desktop interface.

Technologies Used:

  • Atomization (Piezoelectric Mesh Driver): Generates high-frequency vibrations for efficient drug aerosolization.
  • Power Output (Configurable Output Modes): Supports 1W and 1.5W output Charging & Management): Integrated charging circuit logic for rechargeable battery supply
    User Feedback (RGB LED Indicator): Provides multi-color visual status updates (e.g., power on, charging, error)
  • User Control ( Tactile User Button): Simple, reliable input for starting/stopping the nebulization process
  • Data Storage ( EEPROM Memory): Non-volatile storage for configuration settings and operational data
  • Maintenance (USB Interface device mode): Enables connection to host PCs for firmware updates and diagnostics