cyclops

Precision current source, with optional optical feedback, for driving LEDs and laser diodes

jonnew
37
23
C++

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 © 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