rev 2.04 / 2022 12 29 FLD-nano flashlamp driver User manual Warning! This equipment produces high voltages that can be very dangerous. Please read the entire user manual carefully before using the product.
Overview FLD-nano is a compact but powerful flashlamp driver designed for aircooled flashlamps similar to the depicted below. Driver charges the external capacitor bank up to required voltage and then, following the external TTL signal, initiates the discharge by applying the trigger pulse (400V by default) to the flashlamp. FLD-nano requires +24 V DC power supply and pulse generator to set an operating frequency.
Appearance Connections, signals, signal descriptions FLD-nano can be controlled in manual mode. In this case, jumper is set between PINs 1 and 2 of INTERFACE connector in order to use VOLTAGE PROGRAM trimpot. To obtain a trigger pulse immediately after charging a storage capacitor to output voltage level (manual autorun mode), set a jumper between PINs 8 and 7. ENABLE jumper between PINs 5 and 6 allows the driver to run. It could be convenient to interconnect PINs 5 and 6 using a button instead of jumper.
24V DC INPUT: Molex SPOX (0965-2048) PIN (color) DESIGNATION DESCRIPTION 1, 2 (black) GND 24V DC negative 3, 4 (red) 24VDC 24V DC positive INTERFACE: Molex C-Grid III (90130-1210) PIN (color) 1 (blue) DESIGNATION DESCRIPTION Voltage Program 0-5V signal applied to PIN 1 sets the output voltage level of FLD-nano. 5V corresponds to VMAX at the output (900V or 1000V in standard versions).
8 (white) Pulse When 5V (TTL) has been applied to PIN 8, FLD-nano sends one pulse (400V by default) to trigger transformer. If flashlamp is triggered successfully, a flash occurs. In manual mode PINs 7 and 8 can be interconnected with a jumper for autorun mode. 9 (-) N/C - 10 (orange) Fault When an internal fault of FLD-nano occurs, the driver stops the operations and sets PIN 10 to 5V (TTL) to indicate the failure.
Other elements VOLTAGE PROGRAM trimpot – sets output voltage in Stand-alone mode POWER LEVEL trimpot – allows to adjust the maximum output power of the driver (for example to reduce input current in low power applications) FAULT LED – indicates the drivers failure (overheating) Grounding and mounting Grounding policy By default INTERFACE return, 24VDC INPUT negative, HV OUTPUT negative are interconnected to each other. Driver is to be mounted with four M3 screws.
Operations (in manual regime) • • • • • • • • • • Ensure that FLD-nano is disconnected from the power source. Connect storage capacitor (e.g. 33uF/1000V) to FLD-nano. Connect your flashlamp to storage capacitor. Connect trigger transformer to FLD-nano and to flashlamp. Ensure that all jumpers of FLD-nano are removed. Connect 24V DC power supply to FLD-nano and apply 24V DC power to FLD-nano. Set on VOLTAGE PROGRAM jumper (i.e.
Specifications ELECTRICAL SPECIFICATION Input Input voltage 24V DC, 10A max.
DIMENSIONAL DRAWINGS 9
How to order? There are several standard modifications of the driver.
