MESSTEC Power Converter GmbH
About us
Laser drivers, TEC controllers, electronics and mechanics from one competent source. Our core competencies are laser drivers, TEC controllers, electronics production and mechanical production. We develop and produce laser drivers and TEC controllers. For laser applications, we manufacture complete set-ups including power supply, cooler, TEC controller, Peltier device, control, driver and diode. In addition, we offer in-house electronic and mechanical production of components as well as electro-mechanical assembly and testing of complete devices and modules. Furthermore, we provide electrical engineering and mechanical construction. All our services are provided with sustainability in mind.
Address
Grube 41
82377 Penzberg
Germany
E-mail: info@powerconverter.com
Phone: +49 8856 803060
Internet: www.powerconverter.com/
501 1st Avenue N, Ste 901
FL 33701 Saint Petersburg
United States
E-mail: mholmes@two-levelsystems.com
Phone: +1 850 345 5411
Contact person:
Kersten Stoebe
E-mail: kersten.stoebe@powerconverter.com
Phone: +49 8856 80306-0
Michael Holmes
E-mail: mholmes@two-levelsystems.com
Phone: +1 850 3455411
Merlin Reingruber
E-mail: merlin.reingruber@powerconverter.com
Phone: +49 8856 80306-0
Products & Services
We are an important international technology leader for laser drivers and TEC controllers and draw on more than 40 years of experience in the development, production and application of power supplies and electronic components for lasers. We are a well-known global partner for standard devices as well as for customized developments and individual special solutions. MESSTEC offers more than 100 different devices for high-power diode lasers with short pulses. Many accessory modules, such as operating panels or communication interfaces, enable versatile special applications for our customers.
High Power Diode Driver
The DPDP is a modular high-power laser diode driver (high-power current source plus external pulse unit) for up to 320 A with a rise time of 1 µs. Air-cooled and water-cooled versions are available.
The DPDP has multifunctional interfaces (USB, RS232) and can be operated via software (external PC, internal computer) or via hardware. Various operating modes can be configured (internal pulse generator or external pulse source).
Diode and TEC Driver
The DT xxx-yy is a high-precision laser diode driver and a full-bridge TEC driver with temperature controller.
This technology has many advantages and is particularly suited for driving laser diodes and Peltier elements. It offers high accuracy and current stability, excellent dynamic performance, high output impedance, low electromagnetic interference and many features for protecting laser diodes.
No current overshoot or ringing occurs when the output current or load impedance is changed abruptly.
The DT xxx-yy can be operated by a microcontroller, an external control logic or completely analog. Two operating modes are possible: Laser On/Off mode and Auto On mode.
The device is well suited for building simple laser systems with manual control or complex laser systems with an RS232 interface and an industrial interface for control by a programmable logic controller.
TEC Controller
The TEC Controller TEC xx-yy is a controller and driver for Peltier elements. It is a temperature control system with extreme accuracy. The output ripple is very low due to extensive multistage filters. The output is short-circuit-proof. The supply voltage can be a standard industrial voltage of 24 V or 48 V or any other input voltage. The configuration for standard temperature sensors such as Pt100, Pt1000, Ni1000 or KTY 11-5 is already integrated. Other temperature sensors can be defined by the customer. The coefficients of the PID controller can be adjusted by the customer. The user can enter a temperature set-point as well as limits for the temperature and for the Peltier voltage and current. It can be operated via hardware inputs/outputs and/or via software control. It has serial interfaces such as USB or RS232.
The standard temperature range is from 0 °C to +50 °C. In addition, a wide-range version from -100 °C to +200 °C is available.
OEM Laser Module with Fan Speed Control
MESSTEC develops OEM laser modules in close co-operation with the customer. The electronic and mechanical components are produced in-house; the laser diodes are purchased or provided by the customer. Depending on the customer’s requirements, the OEM laser modules consist of
AC/DC power supply
air/water cooler, heat pipe, fan
driver with laser diode
TEC controller, Peltier element, temperature sensor
pilot laser
mechanical construction
electrical wiring
etc.
After assembly and wiring of the laser modules, MESSTEC performs electrical and optical tests before delivery.
For this purpose, we measure the electrical and optical output curves, especially for short nanosecond pulses.
In addition, we measure the electrical and optical power.
Our test station is equipped with a measurement box, a function and pulse generator, photodiodes, optical power meters, a spectrometer, an oscilloscope, a chiller and an electronic load for electrical power measurements.
Drivers for fast modulation and pulsed operation
The models FM, VFS, VFM and MSM are specially designed for very fast modulation with arbitrary curves and for very short pulses. The maximum diode current for CW operation is 120 A, for pulsed operation 240 A at maximum diode voltages of 49 V. Depending on the overall configuration “laser driver - laser diode”, a rise time of ≤ 10 ns and a frequency of ≥ 30 MHz can be achieved.
The VFS driver in particular offers the following additional advantages:
– serial interface (USB, RS232)
– internal pulse generator
– adjustable supply voltage for the laser diode in order to reduce power dissipation
– closed-loop parameters adjustable via software
