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Extreme power LED Driver Unit ST
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Extreme power LED Driver Unit ST

from Supertech

Universal equipment, current is set locally, external TTL gating, digital output.
Warranty:
5 years
Lead time:
Max. 10 weeks
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Optimized for seriously shielded environments in microelectrode laboratories. The output current is as smooth as the current of a lead battery. This design fulfils all the special requirements of any sophisticated electrophysiology applications, even in close position to high impedance recording electrodes. These LED drivers are optimized for optogenetic stimulation, but they also can be used for other light stimulating applications (for instance retinography). They can drive any kind of LED directly, with calibrated current, independently of the LED model. They can even drive the extremely high power and/or huge forward voltage LED types. The internal construction of our LED drivers is based on high precision constant current generators and high speed gating circuits for extremely fast switching of the LED's current.

Special features

  • Over-current Protection Circuit, what never allows to override the full scale current, even not in transient or broken output wiring conditions! It is an extremely important feature, because the brightest, highest power LEDs are driven by such level of currents, what are very close to their absolute maximum ratings. These extreme power LEDs need to be carefully protected, because they are terribly expensive.
  • Active current sink circuit to eliminate the parasitic charge holding effect of LEDs.

Specifications / Technical Data

  • Over-current (in other words Overdrive) Protection Circuit: the full scale current is never overridden!
  • Worst-case error of the output current generators: < 5 %
  • Compliance voltage of the current generators: 12 V
  • Selectable ranges of the output current:
    • 20 - 200 mA in 10 steps (each step is 20 mA)
    • 40 - 400 mA in 10 steps (each step is 40 mA)
    • 80 - 800 mA in 10 steps (each step is 80 mA)
    • 160 - 1600 mA in 10 steps (each step is 160 mA)
  • Active current sink circuit at the output
  • Control input: TTL compatible, 0.2 unit-load
  • Active level at the control input: TTL High
  • Internal mains power supply
  • Mains voltage: 100 - 120V or 220 - 230V (chosen internally, fixed in the factory)
  • Power consumption: 120 VA
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Descriptions

Optimized for seriously shielded environments in microelectrode laboratories. The output current is as smooth as the current of a lead battery. This design fulfils all the special requirements of any sophisticated electrophysiology applications, even in close position to high impedance recording electrodes. These LED drivers are optimized for optogenetic stimulation, but they also can be used for other light stimulating applications (for instance retinography). They can drive any kind of LED directly, with calibrated current, independently of the LED model. They can even drive the extremely high power and/or huge forward voltage LED types. The internal construction of our LED drivers is based on high precision constant current generators and high speed gating circuits for extremely fast switching of the LED's current.

Special features

  • Over-current Protection Circuit, what never allows to override the full scale current, even not in transient or broken output wiring conditions! It is an extremely important feature, because the brightest, highest power LEDs are driven by such level of currents, what are very close to their absolute maximum ratings. These extreme power LEDs need to be carefully protected, because they are terribly expensive.
  • Active current sink circuit to eliminate the parasitic charge holding effect of LEDs.

Specifications / Technical Data

  • Over-current (in other words Overdrive) Protection Circuit: the full scale current is never overridden!
  • Worst-case error of the output current generators: < 5 %
  • Compliance voltage of the current generators: 12 V
  • Selectable ranges of the output current:
    • 20 - 200 mA in 10 steps (each step is 20 mA)
    • 40 - 400 mA in 10 steps (each step is 40 mA)
    • 80 - 800 mA in 10 steps (each step is 80 mA)
    • 160 - 1600 mA in 10 steps (each step is 160 mA)
  • Active current sink circuit at the output
  • Control input: TTL compatible, 0.2 unit-load
  • Active level at the control input: TTL High
  • Internal mains power supply
  • Mains voltage: 100 - 120V or 220 - 230V (chosen internally, fixed in the factory)
  • Power consumption: 120 VA

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