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In vivo applications / Optogenetics / OptoLED drivers
Ex vivo and in vitro applications / Optogenetics
Opto LED Driver Unit ST
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.
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:
- 0 - 200 mA
- 0 - 400 mA
- 0 - 800 mA
- 0 - 1600 mA
- Control input voltage range: 0 - 5.0 V
- Input impedance: 50 kOhms
- Internal mains power supply
- Mains voltage: 100 - 120V or 220 - 230V (chosen internally, fixed in the factory)
- Power consumption: 120 VA
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.
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:
- 0 - 200 mA
- 0 - 400 mA
- 0 - 800 mA
- 0 - 1600 mA
- Control input voltage range: 0 - 5.0 V
- Input impedance: 50 kOhms
- 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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