
Development and manufacturing of laser drivers, TEC controllers and OEM laser modules with electronics and mechanics production in Penzberg.
MESSTEC Power Converter GmbH
PenzbergNew on Amplifa
About us
MESSTEC Power Converter GmbH develops and manufactures laser drivers for diode lasers, TEC controllers and complete OEM laser modules — including power supply, cooling, control electronics, driver and diode — in Penzberg south of Munich. With a high level of in-house production depth, the company covers electronic and mechanical manufacturing of components, electro-mechanical assembly and wiring, as well as partial and system testing. Engineering services include the design and project engineering of laser drivers, TEC controllers, electronic circuits, schematic diagrams and PCB design, as well as mechanical construction. In electronics manufacturing, reactance coils and transformers are wound and encapsulated in a vacuum process; cables and connectors are produced to customer requirements. The products are characterized by high current accuracy (ΔI ≤ 0.01 %) and high thermal stability (ΔT ≤ 0.01 K); drivers cover diode currents from 100 mA to 320 A at voltages up to 150 V. Lot sizes range from single pieces to mass production, with a specialization in small and medium series. The components and systems are used, among other things, in railway technology, aviation, laser technology, mechanical and plant engineering, and testing of electronic components, and are distributed worldwide through distributors.
- Site
- Penzberg
- Processes
- Development and manufacturing of laser drivers (CW drivers, pulsed drivers, high power, with TEC, Development and manufacturing of TEC controllers (TEC drivers), Electronic manufacturing (electronic components, electronic circuits, PCB design), Mechanical manufacturing (mechanical components, mechanical construction), Electro-mechanical assembly (assemblies and devices assembled, populated, wired), Testing of complete devices and modules (partial testing and system testing, solder joint, Manufacturing of complete OEM laser modules incl. power supply, cooling, control electronics,, Engineering services: concept and project engineering of laser drivers, TEC controllers, electronic
- Materials
- Laser driver development, TEC controllers, PCB design, Electronic manufacturing, Mechanical manufacturing, OEM laser modules, Winding and vacuum encapsulation, Cable and connector manufacturing
- Certificates
- ISO 9001, ISO 9001 (planned)
- Founded
- 1976
- Industries
- Laser technology, Railway technology, Aviation, Film and television industry, Industrial power supply, Mechanical and plant engineering
- 01
Engineering (concept, circuit, PCB design, mechanical construction)
- 02
Electronic manufacturing (including winding and vacuum encapsulation)
- 03
Mechanical manufacturing
- 04
Cable and connector manufacturing
- 05
Electro-mechanical assembly and wiring
- 06
Partial and system testing
Processes and competencies
Laser driver development
Design and project engineering of CW, pulsed and high-power drivers for diode currents from 100 mA to 320 A.
TEC controllers
Drivers for heating and cooling with 3 A to 24 A, voltages up to 45 V and temperature setting accuracy ΔT ≤ 0.01 K.
PCB design
Design of circuits, schematic diagrams and PCB layouts to customer specifications up to production readiness.
Electronic manufacturing
Manufacturing of electronic assemblies from single pieces to mass production, supported by the EMS provider Mayerhofer Elektronik at the Penzberg site.
Mechanical manufacturing
Precise mechanical components and constructions with high-precision mechanical inspections.
OEM laser modules
Complete modules including power supply, cooling, control electronics, driver and diode from a single source.
Winding and vacuum encapsulation
Winding of reactance coils and transformers with subsequent encapsulation in a vacuum process.
Cable and connector manufacturing
Production and customization of cables and connectors according to customer requirements.
Sites

Penzberg
DEHeadquarters, development, electronics and mechanics manufacturing, assembly and testing
- Lot size
- Single piece to mass production, focus on small and medium series
- Materials
- Electronics, mechanics, electro-mechanical modules
- Microscope workstations for semi-automated visual inspection
- Solder joint inspection
- Manufacturing with EMS partner Mayerhofer Elektronik under one roof
Products and components




Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development and manufacturing of laser drivers (CW drivers, pulsed drivers, high power, with TECEngineering | ΔI ≤ 0.01% | – | – | Single piece | – |
| Development and manufacturing of TEC controllers (TEC drivers)Engineering | ΔT ≤ 0.01 K; currents 3 A to 24 A, voltages up to 45 V | – | – | – | – |
| Electronic manufacturing (electronic components, electronic circuits, PCB design)Assembly | – | – | – | Single piece – Mass production | – |
| Mechanical manufacturing (mechanical components, mechanical construction)Machining | high precision of mechanical inspections stated | – | – | Single piece – Mass production | – |
| Electro-mechanical assembly (assemblies and devices assembled, populated, wired)Assembly | – | – | – | – | – |
| Testing of complete devices and modules (partial testing and system testing, solder jointTesting | – | – | – | – | – |
| Manufacturing of complete OEM laser modules incl. power supply, cooling, control electronics,Assembly | – | – | – | – | – |
| Engineering services: concept and project engineering of laser drivers, TEC controllers, electronicEngineering | – | – | – | – | – |
| Winding of reactance coils and transformers, encapsulation in a vacuum processJoining | – | – | – | – | – |
| Production and customization of cables and connectors according to customer requirementsAssembly | – | – | – | – | – |
| Manufacturing of drivers for diode currents 100 mA to 320 A at diode voltages up to 150 VEngineering | – | – | – | – | – |
Additional services
Quality
An internal quality management system secures the entire order process, including development and support processes. Testing includes solder joint inspections, semi-automated visual inspections with microscope workstations, and high-precision mechanical inspections; an ISO-9001 certification is being pursued.
| Evidence | Penzberg |
|---|---|
| ISO 9001 (planned) |
History
- 1976
Foundation of the engineering office Peter Moosbauer
- 1982
Start of electronic and mechanical manufacturing
- 1985
Move into the company's own building
- 1986
Development of the first products for laser technologies (first laser driver)
- 2000
Filing of the first patent
- 2006
Conversion and expansion of electronic manufacturing
- 2007
Filing of further patents in Germany
- 2008
Filing of further patents in the USA
- 2012
Acquisition by Kersten Stöbe as managing partner
- 2016
Introduction of a new product line for laser applications
- 2017
Acquisition and integration of Ernst Rieger Apparatebau GmbH
- 2019
Development of the TEC controller product line
- 2021
45th company anniversary
- 2024
Acquisition by the Schwienbacher Group and Merlin Reingruber
- 2026
50th anniversary since foundation