Title:
OVERCURRENT PROTECTION CIRCUIT, POWER SOURCE CONTROL DEVICE, AND INVERSION TYPE SWITCHING POWER SOURCE
Document Type and Number:
Japanese Patent JP2022136418
Kind Code:
A
Abstract:
To provide an overcurrent protection circuit in which a restriction can be imposed on a load current value itself.SOLUTION: An overcurrent protection circuit 30 includes a low-pass filter LPF that is configured to generate a smoothed voltage V1 which corresponds to a voltage Vds(t) between ends of a lower transistor 102 forming a half-bridge output stage of an inversion type switching power source so that an overcurrent protection signal LoadOCP is generated on the basis of the smoothed voltage V1.SELECTED DRAWING: Figure 8
Inventors:
HISADA TATSUYA
Application Number:
JP2021036015A
Publication Date:
September 21, 2022
Filing Date:
March 08, 2021
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H02M1/00; H02H9/02; H03K17/08; H03K17/687
Attorney, Agent or Firm:
Patent Business Corporation Sano Patent Office