APPLICATION
MCD driver is a utility board that unites several functions:
- power supply of arrays comprising of Mid-IR LEDs, supporting up to 8 channels;
- photodiode signal processing and amplification;
- synchronisation of LED and photodiode signals.
FEATURES
- Pulse mode operation (mode that provides maximum peak optical power).
- LED current amplitude and pulse duration are preset by manufacturer according to a customer’s request.
- Ability to work either with PD models without a built-in preamplifier (enabling an on-board MCD preamplifier) or with PD models with a built-in preamplifier .
- Built-in 8-channel synchronous detector, which provides synchronisation of LED signals with a photodiode preamplifier and further signal amplification.
TECHNICAL CHARACTERISTICS
Pulse mode current-time relation
| Main characteristics | |
|---|---|
| Parameter | Value |
| Input voltage | Stabilized +12 V |
| Voltage tolerance | -5..+5 % |
| Input current | < 0.25 A |
| Board dimensions | 105×70×15 mm |
| Synchronization output voltage | 11 V (-4 V for inverted photodiode signal) |
| Fixed parameters | |
| Pulse duration | 20 µs |
| Repetition rate (per channel) | 0.5 kHz |
| Repetition rate (8 channels) | 4 kHz |
| Output current amplitude | 0.4 A |
| Adjustable parameters | |
| Output signal gain | 1x-10x |