LED Light Source Control Unit

The LED light source control unit is a line powered constant-current source designed for Thomas LED Light sources. This device provides a constant current of up to 1000mA to guarantee a stable light emission from the LED light source.

It is possible to adjust the light intensity manually by turning a potentiometer at the front panel of the device and reading the adjusted current value from an integrated moving coil instrument. Furthermore the light intensity can be controlled by a DC input of the device (0…5V DC = 0…100% Light intensity) by using an external DC voltage (e.g. from a PC insert card). A trigger input offers to switch the light source "on" and "off" by an external TTL trigger signal. 

Key features:

  • Power Supply for high brightness LED technique
  • Small and lightweight
  • Optimal coupling of optical fiber
  • LED light intensity manually ad-justable at front panel
  • Permanent light or triggered mode selectable
  • LED light intensity controllable via external DC voltage (e.g. by a PC)
  • External trigger input
  • External AC power supply (100-240V AC/50-60Hz)

Technical data of LED light source Control Unit

Parameter Value
Width 116mm
Length 160mm
Height 60mm
Weight 500g
Signal output constant-current
Max. output current 1000mA
External trigger input TTL (0V=Low/5V=High)
External intensity control voltage 0...5V DC (=0...100% intensity)

Features

It is possible to adjust the light intensity manually by turning a potentiometer at the front panel of the device and reading the adjusted current value from an integrated moving coil instrument. Furthermore the light intensity can be controlled by a DC input of the device (0…5V DC = 0…100% Light intensity) by using an external DC voltage (e.g. from a PC insert card).

Figure 1: The LED Control Unit

Publications

[4] Durand-de Cutolli R., Mondoloni S., Marti F., Lemoine D., Ngyen C., Naudé J., D'Izarny-Gargas T., Pons S., Maskos U., Trauner D., Kramer R. H., Faure P., Mourot A.
Manipulating midbrain dopamine neurons and reward-related behaviors with light-controllable nicotinic acetylcholine receptors. eLife 2018;7;e37487, DOI: 10.7554/eLife.37487

[3] Chaves-Coira I., Rodrigo-Angulo M., Núñez Á.
Bilateral Pathways from the Basal Forebrain to Sensory Cortices May Contribute to Synchronous Sensory Processing. Fron. Neuroanat., 12:5, DOI: 10.3389/fnana.2018.00005

[2] Casas-torremocha D., Clascá F., Núñez Á.
Posterior Thalamic Nucleus Modulation of Tactile Stimuli Processing in Rat Motor and Primary Somatosensory Corices. Front. Neural Circuits, 11:69, 2017, DOI: 10.3389/fncir.2017.00069

[1] Chaves-Coira I., Barros-Zulaica N., Rodrigo-Angulo M., Núñez Á.
Modulation of Specific Sensory Cortical Areas by Segregated Basal Forebrain Cholinergic Neurons Demonstrated by Neuronal Tracing and Optogenetic Stimulation in Mice
Front. Neural Circuits Volume 10, Article 28 (April 20, 2016) doi: 10.3389/fncir.2016.00028
Click here for open access full text on frontiers in Neural Circuits


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