DRIVERS for LED 1.6÷4.6 µm LED Driver Model D-11 • Driver D-11 is designed for power supply of all models of MID-IR LED’s. The driver provides two modes of operation: • Quasi Continuous Wave (quasi steady-state) mode. Such mode provides maximum average optical power from the LED. Optimum current for ordered together with Driver D-11 infrared LEDs is fixed (usually 200 mA). Frequency of 0.5 kHz is used. • Pulse mode. Such mode provides maximum peak optical power from the LED. In this mode pulse duration of 1 µs is used. Optimum for ordered together with Driver D-11 infrared LEDs peak current is fixed (usually 1 A). • Customer can specify in his order other current, frequency of pulse duration. Quasi-CW f = 0.5 kHz 200 mA 1 ms 1 ms Pulsed 1 µs f = 0.5 kHz 1A 2 ms Parameters Pulse mode Quasi-CW mode Pulse duration 1 µs 1000 µs Repetition rate 0.5 kHz 0.5 kHz Current amplitude 1A 200 mA Dimensions, mm 105 x 58 x 20 Weight 90 g Power requirement +12 V DC DRIVERS for LED 1.6÷4.6 µm LED Driver Model D-11 LED Driver D-11 Operating instructions MID-IR LED Connector for IR LED VD3 Break Red LED indicates break of circuit Switch On and switch off of the Driver is carried out by switch "On/Off" QCW pulse Working On/Off Operating mode Connector synchronizing pulses Switch over of two modes quasi CW (QCW) and short pulses (pulse) is carried out by switch "Operating mode" Connector for power +12 V 1. Insert AC/DC adapter into connector "+12V DC" (Attention on voltage polarity). 2. If necessary connect "Connector for synchronizing pulses" with selective amplifier of the detector signal (Attention on voltage polarity). ground signal 3. Insert a LED into connector "LED" (Attention on voltage polarity - + to the red point on the LED package). 4. Select operating mode - "QCW" or "Pulse" (switch "Operating mode"). Green LED will indicate selected mode. Installed frequency is 0.5 kHz. If you select pulse mode, installed pulse duration is 1 ms. Customer can specify in his order other frequency and/or pulse duration. 5. 6. Set pozition "0" on Switch "Current" Switch On Driver (switch On/Off). Green LED "Working" will indicate that current is flowing. If after switching on current is not flowing red LED "Break" will indicate break of the circuit. That situation can take place if testing Infrared LED is damaged. If Customer order Driver D-11 together with infrared LEDs currents for quasi-CW and pulse modes are fixed (usually 200 mA in QCW and 1 A in pulse mode).