End of Year sale on GTO Gate Drivers
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End of year sale on Darrah’s GTO Gate Drives

Gate Drivers are designed for triggering large Gate-Turn-Off Thyristors (GTO) featuring gate-turn-off currents up to 3000 Amps and off-state voltages up to 4500 volts. The control signal, transmitted via fiber optics, controls the output valve of the gate driver. A feedback signal, also transmitted via fiber optics, is used to check that the gate driver and GTO are operating properly. This GTO Gate Driver was developed for use in traction systems and is currently being used successfully by numerous customers.

Published on 10/29/19 Read Article
Power Conversion Solutions

Air and Water Cooled Power Assemblies- AC Controller, Diode and Thyristor Bridges, 4 Quadrant Bridges Darrah manufactures a complete range of heatsink assemblies designed to integrate into you new or existing power systems. Available as AC Controllers, Diode and Thyristor Bridges. Darrah assemblies mount easily within your cabinet and integrate with various control systems.

Published on 10/22/19 Read Article
Powerex IGBT / HVIGBT

The Powerex IGBT/HVIGBT line-up of Powerex self-manufactured devices employ CSTBT (Carrier Stored Trench-Gate Bipolar Transistor) technology, supporting the reduced power loss and miniaturization required for industrial applications. Powerex HVIGBTs and HV diodes, feature highly insulating housings that offer enhanced protection by means of greater creepage and strike clearance distance for many demanding applications like medium voltage drives and auxiliary traction applications.

Published on 10/15/19 Read Article
Wakefield-Vette Liquid Cooling

Liquid cooling is just like forced convection in that fluid is forced through the system by an external source like a pump. While most applications use water or water/glycol mixtures as the primary fluids, any liquid can be used, including liquid refrigerants, fluorocarbons, gasoline, hydraulic fluid, or oil to name a few. Liquids are more efficient then forced air because the specific heat of liquid is higher than the specific heat of air and just like forced air cooling, liquid cooling is most efficient if the fluid is turbulent. However, turbulent flow puts a strain on the pump.

Published on 10/07/19 Read Article
Darrah FS2 Thyristor Module Assembly

Darrah manufactures a complete range of isolated module heat sink assemblies designed to integrate into your new or existing power systems. Available as AC Controllers, Diode and Thyristor Bridges. Darrah assemblies mount easily within your cabinet and integrate with various control systems.

Published on 10/01/19 Read Article