Patent ID: 11949340
Assignee: DELTA ELECTRONICS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A conversion device, comprising:
a primary side circuit, comprising a primary side switch, and configured to receive an input voltage;
a secondary side circuit, output an output voltage to a load;
a transformer comprising a primary winding and a secondary winding, and the primary winding electrically coupled to the primary side circuit and the secondary winding electrically coupled to the secondary side circuit; and
a control circuit configured to control a peak value of a current of the primary side switch, to be limited in a band range;
wherein when the peak value of the current of the primary side switch is beyond the band range, the control circuit adjusts a blanking time of the primary side switch; when the peak value of the current of the primary side switch is larger than an upper limit value of the band range, the control circuit decreases the blanking time; when the peak value of the current of the primary side switch is smaller than a lower limit value of the band range, the control circuit increases the blanking time.