公开(公告)号：KR101291188B1

公开(公告)日：2013-07-31

申请号：KR1020120041260

申请日：2012-04-20

Applicant: 숭실대학교산학협력단

Inventor： 위재경 ,  박영균 ,  임지훈

IPC: H02M3/28

Abstract: PURPOSE: A multi output switching mode power supply controlling apparatus is provided to efficiently control a switching mode power supply (SMPS) which has multi output. CONSTITUTION: An output state setting unit (110) sets up an output selection terminal which outputs a voltage value from multiple voltage output terminals according to selection of a user. A comparison signal output unit (130) outputs a preset comparison signal corresponding to output voltage which is output from the output selection terminal. A selection signal generation unit (140) outputs a selection signal which successively selects one comparison signal among the comparison signals which are output from a preset cycle. A comparison signal selecting unit (150) successively selects one comparison signal corresponding to the output selection signal every predetermined cycle. A digital control unit (160) controls a control signal which determines a current amount to control the duty width of a digital pulse width modulating signal. [Reference numerals] (122) Clock generator; (124) Divider; (160) Digital control unit; (AA) Switching clock (f_s); (BB) Operating clock (f_op); (C1) First comparator; (C2) N-th comparator; (D1) First resister; (D2) N-th resister; (E1) First current cell and digital pulse width modulator; (E2) N-th current cell and digital pulse width modulator; (F1) First buffer and dead time control unit; (F2) N-th buffer and dead time control unit; (Sw1) First output selection switch; (SwN) N-th output selection switch

Abstract translation: 目的：提供多输出开关电源控制装置，以有效地控制具有多输出的开关模式电源（SMPS）。 构成：输出状态设定单元（110）根据用户的选择，设定从多个电压输出端子输出电压值的输出选择端子。 比较信号输出单元（130）输出与输出选择端子输出的输出电压对应的预设比较信号。 选择信号生成单元（140）输出从预设周期输出的比较信号中连续选择一个比较信号的选择信号。 比较信号选择单元（150）每隔预定周期依次选择与输出选择信号对应的一个比较信号。 数字控制单元（160）控制确定当前量以控制数字脉宽调制信号的占空比宽度的控制信号。 （附图标记）（122）时钟发生器; （124）分隔线 （160）数字控制单元; （AA）开关时钟（f_s）; （BB）工作时钟（f_op）; （C1）第一比较器; （C2）第N比较器; （D1） （D2）N型电阻器; （E1）第一个当前单元和数字脉宽调制器; （E2）第N个当前单元和数字脉宽调制器; （F1）第一缓冲和死区控制单元; （F2）第N个缓冲器和死区时间控制单元; （Sw1）第一输出选择开关; （SwN）N输出选择开关