NECSEL TM THERMAL PLATFORM DEVELOPER’S KIT Specifications Document Date: July 1, 2016 Version: Preliminary v1.1 1. Introduction The Necsel Thermal Platform Developer’s Kit is the easiest way to start using Necsel NovaLum lasers. Each kit includes the Necsel Thermal Platform Intelligent Controller that is pre-calibrated and matched to your TEC based active thermal platform module for immediate use out of the box. The heatspreader is pre-drilled for the mounting of all standard Necsel NovaLum laser modules. The Necsel Thermal Platform Developer’s Kit consists of two basic modules: the Necsel Thermal Platform Intelligent Controller with a Microsoft Windows based software interface, and the TEC based Active Thermal Platform Module. The Necsel Thermal Platform Intelligent Controller is a bi-directional, high frequency, high efficiency switch mode power converter with filter. It provides smooth DC power for maximum drive efficiency to a Peltier-effect thermoelectric cooler (TEC) and is capable of bidirectional operation (heating and cooling). The controller incorporates advanced servo logic that will regulate the temperature of the heatspreader to a user-defined set point. It controls the voltage applied to the TEC, and the current that results is a characteristic of the TEC rather than the driver. In the event that the TEC tries to draw more current than the driver can provide, a shutoff will occur to protect the driver. When this occurs and if the Pass-through feature is in use, the laser driver will be automatically shut off as well. The voltage capability of the TEC controller is determined by the input DC power supply. The controller output voltage is limited to 90% of the input. Our Thermal Platform Development Kits come 801 Ames Avenue / Milpitas, CA 95035 / T el: +1-408-940-0751 / Email: [email protected] /

configured with a 15V DC power supply - providing a 13.5V TEC controller maximum output, however, the standard controller will work with any DC power supply in the range of 15V - 24V. Lower voltages are also possible but will require factory modification. The output current limit is 10A. The advanced Windows based interface program, virtually eliminates the tedious first-time setup process typically required with a temperature controller. No potentiometers to adjust. No guessing at PID constants. The servo tuning wizard empirically characterizes your thermal load and performs a numerical analysis...

The Active Thermal Platform Module consists of a predrilled isolated heat spreader with an integrated thermistor for temperature monitoring, TEC module, and a forced air cooled heatsink. The heat capacity for the Active Thermal Platform Module is 100W. 2. General Controller Specifications ITEM Input Power Output Voltage TEC Output Voltage Resolution TEC Output Voltage Ripple (Peak Output Current Electrical Efficiency Fan Driver Power Output Temperature Resolution Computer Interfaces 801 Ames Avenue / Milpitas, CA 95035 / T el: +1-408-940-0751 / Email: [email protected] /

1 The TEC connection polarity should be such that a positive voltage causes the temperature to rise. / Email: [email protected] /

Note: Recommended maximum laser module mounting screw depth should not exceed 6mm 801 Ames Avenue / Milpitas, CA 95035 / T el: +1-408-940-0751 / Email: [email protected] /