Electronic Design

A Better Transformer Equivalent Circuit

Download this article in PDF format. If you search the internet for “transformer equivalent circuits,” you’ll get five pages of over 100 small circuit diagrams. Figures 1 and 2 show two typical ...
Electronic Design

Gate Drive Transformer Circuit Maintains Fast Turn-Off Time

This gate-drive transformer (GDT)circuit allows the drive signal to the MOSFET to range from 50% down to 0%, while still offering a fast turn-off that cannot be accomplished with a simple load ...
EDN

Isolation transformer is short-circuit proof

Short-circuit proof, the Model A-15633 isolation transformer features Class 180 insulation and built-in thermal-overload protection. The transformer's 1/4-in. quick-connect terminals provide reliable ...
EDN

Resettable circuit protection devices protect electric motors and transformers

Raychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its PolySwitch(tm) LVR series of resettable circuit protection devices. PolySwitch LVR devices help ...
Power Engineering

ABB to Supply Transformers and Circuit Breakers to Upgrade Quebec Grid

ABB has won orders totaling more than $85 million to upgrade transmission infrastructure for Canada’s Hydro-Québec (HQ). The contracts will upgrade the utility’s 800-kV air-insulated switchgear ...