Title:
DC/DC CONVERTER AND CONTROL CIRCUIT OF THE SAME
Document Type and Number:
Japanese Patent JP2019022303
Kind Code:
A
Abstract:
To provide a DC/DC converter in which a performance of a circuit protection is improved, and a control circuit of the DC/DC converter.SOLUTION: A pulse modulator 210 generates a pulse signal Sfor controlling a switching transistor Mon the basis of a state of the output of a DC/DC converter 100. A driver 230 drives the switching transistor Mon the basis of the pulse signal S. A first protection circuit 250 receives a current detection signal Vindicating a current Iflowing in the switching transistor M, and controls a protection switch Mon the basis of the magnitude relationship of the current detection signal Vand a predetermined first threshold value Vin an off period of the switching transistor M.SELECTED DRAWING: Figure 2
Inventors:
KAMITSUKURI KIYOSHI
SHINOZAKI TOMOFUMI
SHINOZAKI TOMOFUMI
Application Number:
JP2017138159A
Publication Date:
February 07, 2019
Filing Date:
July 14, 2017
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H02M3/28
Domestic Patent References:
| JP2017093110A | 2017-05-25 | |||
| JP2016029865A | 2016-03-03 | |||
| JPH07123711A | 1995-05-12 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki