Regulation & Temperature Rise

DUTY CYCLE
A smaller transformer can be used when the load is intermittent and the duty cycle is much shorter than the thermal time constant of the transformer (which is several hours). The power rating of the transformer is calculated as:

VOLTAGE REGULATION
The output voltage from the toroidal transformer increases slightly at partial load. By using larger diameter wire or a larger core, the voltage drop can be reduced and the regulation improved.

TEMPERATURE RISE
POWERTRONIX transformers are designed for a temperature rise of 60 degrees Celsius above ambient temperature at full load. At lower output power, the temperature rise decreases significantly.

If required, we can provide the toroidal transformer with a thermal protector, which automatically turns off the transformer at a  set temperature.

Powertronix  .  1120 Chess Drive, Foster City, CA 94404
Tel:  (650) 345-6800  .  Fax: (650) 345-7240