Patent ID: 11863076
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus comprising:
a DC-DC converter circuit comprising a transformer, at least one switching transistor configured to selectively couple a DC source to a primary winding of the transformer, and a rectifier coupled to a secondary winding of the transformer; and
a control circuit configured to generate a measure of loading of the DC-DC converter circuit and to adjust a switching frequency of the at least one switching transistor responsive to the detected measure of loading, wherein the control circuit is configured to set the switching frequency to a first frequency if the measure of loading is less than a first threshold to prevent magnetic saturation of the transformer and to set the switching frequency to a second frequency if the measure of loading is greater than a second threshold to maintain a temperature of the converter circuit below a maximum temperature.