Patent ID: 11955880
Assignee: ROHM CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The overcurrent protection circuit of claim 1, further comprising:
a first node;
a second node;
a bias current generation circuit configured to supply a bias current to each of the first node and the second node;
a first transistor connected between the first node and the second end of the lower transistor and having a gate to which the smoothing voltage is input;
a second transistor connected between the second node and the second end of the lower transistor and having a gate connected to the second end of the lower transistor;
a resistor connected in series with the first transistor between the first node and the second end of the lower transistor; and
a comparator configured to compare a first node voltage appearing at the first node and a second node voltage appearing at the second node to generate the overcurrent protection signal.