Manufacturing

We manufacture power electronics control systems. We are specialist in managing short run manufacture and testing of assemblies including

PCBAs.
Communication links.
Complete power converters.

PCB assemblies for control of power converters or communications links.

Design and build of the complete power converters

Fifty plastic fiber optic communications links.

Each unit is tested using boundary scan and functional test.

Fiber optic connectors with dust covers in place.

The delivery of 50 fiber optic communications link units to a large power electronics OEMs to integrate into their new high voltage product is typical of the high value short run ELMG Digital Power manufacturing capability. ELMG used a previously qualified contract manufacturing partner to do PCBA construction and ELMG also supervised the production run. Upon completion all final test and assembly was completed at ELMG Digital Power utilising automated JTAG based boundary scan test tools. The tested PCBAs with OEM part numbers were then shipped into stock at the OEM.

: 4B5B encoding

: PCBA for testing

: Fiber optic connectors with dust covers in place.

: High signal integrity

: JTAG Boundary Scan for testing

Two Hundred Precision Current Sources

A precision current source under soak test for 10 weeks at ELMG Digital Power

The delivery of two hundred precision current sources for use in maritime temperature sensing was a challenge that ELMG manufacturing accepted. These current sources had very high reliability and low drift requirements. The ELMG designed PCBA was manufactured by a qualified contract manufacturer. ELMG then assembled the PCBAs into the customised enclosure. To ensure that the drift requirement was met all the units are calibrated and the calibration is recorded against the serial number. All the units are then HASS tested to ensure that the construction is correct and robust. The calibration drift is recorded and the units are recalibrated. This HASS tests ensure that the aging is accelerated and ensures drift in the field is minimal. The drift is recorded and then the units are soak tested for ten weeks. The drift is again recorded, the units recalibrated and shipped to the customer.