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Cyclops LED Driver

Precision, wide-bandwidth current source with optional optical feedback mode for driving high-power LEDs and laser diodes. Good for sneaking optogenetic stimuli between fast things (e.g. galvo flyback on a 2P system). Good for really controlling the amount of light you deliver during 1P imaging or optogenetic stimulation.

If you have questions or comments, please come talk on the open-ephys discord server in the #stimulation channel.

Features

  • Ultra-precise
  • High power
  • Up to 1.5A per LED
  • Wide bandwidth
    • ~2.5 MHz -3 dB bandwidth
    • Maximum 100 ns 1.0A rise and fall times
  • Current and optical feedback modes
  • Built-in waveform generation
  • Over-current protection
  • Modular
    • Arduino compatible: internal waveform generation
    • Also, accepts external analog, gate, or trigger inputs

Stimulus generation options

  • External stimulus sequencer
  • External digital trigger
    • TTL logic level
  • External analog waveform generator
    • 0-5V analog signals
  • Internal 12-bit DAC
    • Synchronized across up to 4 drivers
    • Arduino library
    • Programmable triggering logic
    • Respond to USB input

Buying one

You can purchase a fully assembled cyclops driver from the open-ephys store. All profits go towards continued operation of open-ephys.

Documentation

Documentation and usage information are here: MANUAL.pdf. If you have questions concerning usage, performance, etc., please direct them toward the Open Ephys forum.

Hardware Licensing

Copyright Jonathan P. Newman 2020.

This work is licensed under CC BY-NC-SA 4.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-sa/4.0

Note: This license applies to hardware designs and documentation which reside in the 'device', 'experimental', 'resources' folders of this repository along with information in 'MANUAL.md' and 'MANUAL.pdf'

Software Licensing

Copyright (c) Jonathan P. Newman 2017. All right reserved.

The code associated with the Cyclops project is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

The code associated with the Cyclops project is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this code. If not, see http://www.gnu.org/licenses/.

Note: This license applies to software/fireware source code which resides in in the 'lib' folder of this repository