Title:
ＤＣＤＣコンバータの制御回路、及びＤＣＤＣコンバータ
Document Type and Number:
Japanese Patent JP5883603
Kind Code:
B2
Abstract:
A current generator circuit included in a triangle-wave generator circuit in a control circuit includes plural stages of current mirrors connected in parallel with each other. The plural stages of current mirrors are placed so that the sum of output currents output therefrom becomes an output current of the current generator circuit. A switching element that controls the on/off state of a current in accordance with the amount of load current of a DCDC converter is connected to each of the current mirrors.
Inventors:
Yoshiaki Ito
Application Number:
JP2011214408A
Publication Date:
March 15, 2016
Filing Date:
September 29, 2011
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H02M3/155; G05F3/26; H03K4/06; H03K17/687
Domestic Patent References:
| JP2004282714A | ||||
| JP2004248374A |
Attorney, Agent or Firm:
Patent business corporation Oshima patent office