While troubleshooting the power supply of a 1970s Centurion system, [Usagi Electrics] came across a fascinating feature of these units: the ferroresonant, or constant voltage transformer (CVT). The… ...

The ferroresonant transformers are available for 50 Hz, 60 Hz, and 50/60 Hz, with output ratings from 50 VA to 5.0 kVA. They feature vacuum and pressure impregnation with specialty formulated epoxy ...

The company’s ferroresonant transformers deliver stable output voltages in the realm of ±3% even when the input voltage varies by as much as ±15%. Models are available for 50, 60, and 50/60 Hz ...

Continue reading “Learning About Ferroresonant Transformers While Fixing A 1970s Power Supply” → Posted in Reverse Engineering Tagged centurion , constant voltage transformer ...

Interaction between the two ferroresonant transformer circuits could cause a voltage regulation problem. For instance, some computer systems came with UPS protection (ferroresonant type) as part of ...

Everyone knows that plain old telephone service (POTS) is inadequate in a high-speed digital world. The same can be said for plain old electrical service (POES) that wasn't designed to support ...

In celebration of its 20th anniversary, the Power Sources Manufacturers Association has announced a special offer on Nathan Grossner's classic treatise, Transformers for Electronic Circuits ...

Ferroresonance is a complex, nonlinear oscillatory phenomenon that arises in power systems when the interaction between saturable magnetic elements and the system’s inductive and capacitive ...

Ferroresonant power supplies: Another power supply that should be considered is known as a ferroresonant type. Regulation takes place within the step-up or step-down transformer by core saturation ...