Lincoln Electric Welding Inverter and Chopper Power Electronics Design, Reliability Testing

P O W E R E L E C T R O N I C S T E C H N O L O G Y

TECHNOLOGY

Design 6/8

Power Electronics Design

The reliability of a welding power source is critical. Electronics improvements are the foremost method of continually improving the reliability, efficiency, and performance of our power sources.

Lincoln invested in improving the dependability, durability, and efficiency of its inverters. Lincoln engineers developed innovative solutions for power conversion. Extensive research is conducted in the electronics, EMC, and power laboratories.

The Electronics Lab

is equipped to support the design and analysis of analog and digital control systems.

The EMC Lab

is equipped to conduct electro-magnetic interference testing.

The Power Lab

is equipped to build and test full-scale prototype machines rapidly to support the development of new power conversion techniques. As new power electronic components emerge they are evaluated and implemented.

Reliability Testing

During Product Design

Infrared thermal analysis is done on power electronic assemblies in the power electronics lab. This is done at both the PC board level and the machine level.

Environmental Stress	Mechanical tests such as vibration and drop
Screening (ESS) subjects the	testing provide evidence to the machine’s
machine to extreme conditions	durability and resistance to breaking.
of temperature and humidity.

T h e f u t u r e o f w e l d i n g i s h e r e . ®