公开(公告)号：DE69413812T2

公开(公告)日：1999-06-10

申请号：DE69413812

申请日：1994-07-01

Applicant: CONS RIC MICROELETTRONICA

Inventor： LO PRESTI MATTEO ,  D ANGELO GIUSEPPE ,  CUCUCCIO ANTONINO

IPC: G05F1/10 ,  G05B13/02 ,  G06N5/04 ,  H02M3/155 ,  H02M3/156 ,  H02M1/00 ,  G06F9/44

Abstract: A process for the fuzzy control of switching power supplies which have at least one inductor and at least one switching device, and a device for performing this control, the particularity whereof resides in the fact that it comprises the following steps: measuring the value of the current (IL) on the inductor (L); measuring the value of the input voltage (Vi) of the switching power supply; measuring an error (E) generated between a reference voltage (VREF) and an output voltage (Vo) of the power supply; defining fuzzy membership functions for the value of the current (IL) on the inductor (L), for the input voltage value (Vi), and for the error (E); defining an output membership function for the value of the duty cycle (DC) of the power supply; defining multiple fuzzy inference rules to which the measured values and the membership functions are applied; calculating the corresponding weight functions of the membership functions; defuzzifying the results obtained by means of the weight function calculation and the application of fuzzy rules so as to obtain a real value of the duty cycle (DC) which is suitable to drive the switching device (SW).

公开(公告)号：DE69413812D1

公开(公告)日：1998-11-12

申请号：DE69413812

申请日：1994-07-01

Applicant: CONS RIC MICROELETTRONICA

Inventor： LO PRESTI MATTEO ,  D ANGELO GIUSEPPE ,  CUCUCCIO ANTONINO

IPC: G05F1/10 ,  G05B13/02 ,  G06N5/04 ,  H02M3/155 ,  H02M3/156 ,  H02M1/00 ,  G06F9/44

Abstract: A process for the fuzzy control of switching power supplies which have at least one inductor and at least one switching device, and a device for performing this control, the particularity whereof resides in the fact that it comprises the following steps: measuring the value of the current (IL) on the inductor (L); measuring the value of the input voltage (Vi) of the switching power supply; measuring an error (E) generated between a reference voltage (VREF) and an output voltage (Vo) of the power supply; defining fuzzy membership functions for the value of the current (IL) on the inductor (L), for the input voltage value (Vi), and for the error (E); defining an output membership function for the value of the duty cycle (DC) of the power supply; defining multiple fuzzy inference rules to which the measured values and the membership functions are applied; calculating the corresponding weight functions of the membership functions; defuzzifying the results obtained by means of the weight function calculation and the application of fuzzy rules so as to obtain a real value of the duty cycle (DC) which is suitable to drive the switching device (SW).