TEMPERATURE RISE |
|
VOLTAGE REGULATION |
| LENITY
transformers are designed for a temperature rise of 60oC above ambient at full load. At
lower output power, the temperature rise decreases significantly. |
|
The output
voltage from the toroidal transformer increases slightly at partial load. By using larger
diameter wire or larger core, the voltage drop can be reduced and the regulation improved. |

|
| if required, we can provide the
toroidal transformers with thermal protector, which automatically turns off the
transformer at a set temperature. |
|
|
 |
LOW
MAGNETIC STRAY FIELD |
|
STATIC
SHIELDING |
| LENITY
toroidal transformers have very low magnetic strayfield, with the primary and secondary
windings uniformly wound around the entire core. For extremely sensitive applications, the
radiated field can be reduced further by winding a magnetic shield around the
circumference of the transformer. |
|
When the
toroidal transformer is used in an extremely noisy environment, a static shield might be
needed to reduce the capacitive coupling between primary and secondary. The noise
suppression decreases with larger core sizes. |
 |
|
 |
A-Without magnetic shield
B-With magnetic shield |
|
The static shield consists of a copper foil laminated bet-ween polyester tape.
Since the shield adds layers to the winding window in the transformer, a larger core size
might be required. |
|
|
MEDICAL
SAFETY DESIGNS |
|
|
For
medical equipment and compliance with UL 544, we provide our transformers with extra thick
copper foil and thermal protector when required. |