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公开(公告)号：DE69400710T2
公开(公告)日：1997-05-15
申请号：DE69400710
申请日：1994-07-01
Applicant: SGS THOMSON MICROELECTRONICS , CONS RIC MICROELETTRONICA
Inventor： D ANGELO GIUSEPPE , POLUZZI RINALDO , LO PRESTI MATTEO
Abstract: The present invention relates to an applied-voltage fuzzy control process for induction motors, whose particularity is that it comprises the following steps: the measurement of a speed error (Ew) produced by the comparison between the current speed (w) of an electric motor (2) and a reference speed (wref); the generation of the derivative (dEw/dt)of this speed error; the measurement of a power error (Ep) generated by the comparison between the power supplied (Pin) to the motor (2) and a reference power (Pref); the application of a fuzzy control to the speed error (Ew), to the derivative (dEw/dt) of the speed error, and to the power error (Ep) so as to generate the values of the voltage (Vphase) and the pulse (F) that are suitable to drive the electric motor. The fuzzy control is divided into two sections: a first one (FSC) for motor speed control and a second one (FSP) for motor power control.
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公开(公告)号：DE69400710D1
公开(公告)日：1996-11-14
申请号：DE69400710
申请日：1994-07-01
Applicant: SGS THOMSON MICROELECTRONICS , CONS RIC MICROELETTRONICA
Inventor： D ANGELO GIUSEPPE , POLUZZI RINALDO , LO PRESTI MATTEO
Abstract: The present invention relates to an applied-voltage fuzzy control process for induction motors, whose particularity is that it comprises the following steps: the measurement of a speed error (Ew) produced by the comparison between the current speed (w) of an electric motor (2) and a reference speed (wref); the generation of the derivative (dEw/dt)of this speed error; the measurement of a power error (Ep) generated by the comparison between the power supplied (Pin) to the motor (2) and a reference power (Pref); the application of a fuzzy control to the speed error (Ew), to the derivative (dEw/dt) of the speed error, and to the power error (Ep) so as to generate the values of the voltage (Vphase) and the pulse (F) that are suitable to drive the electric motor. The fuzzy control is divided into two sections: a first one (FSC) for motor speed control and a second one (FSP) for motor power control.
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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
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).
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公开(公告)号：DE69625040D1
公开(公告)日：2003-01-09
申请号：DE69625040
申请日：1996-03-21
Applicant: ST MICROELECTRONICS SRL , CONS RIC MICROELETTRONICA
Inventor： MANGANARO GABRIELE , LAVORGNA MARIO , LO PRESTI MATTEO , FORTUNA LUIGI
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Patent Agency Ranking
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
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).
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公开(公告)号：JPH10243658A
公开(公告)日：1998-09-11
申请号：JP19900897
申请日：1997-07-24
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： DI GUARDO MARIO , D ANGELO GIUSEPPE , LO PRESTI MATTEO
IPC: G06F7/68 , H02M7/5395 , H02P27/08 , H03K7/08 , H02M7/48
Abstract: PROBLEM TO BE SOLVED: To handle the control signal of a power switching element by dividing is frequency of a basic memory scanning clock signal by the division value which is directed primarily from a look up table by a digital selection command and is increased by one. SOLUTION: An operation block includes a multiplier and a divider which divides frequency by (N+1), and also necessarily includes an auxiliary divider which performs the division by (N+1), being provided upstream of the divider, and a look up table which is operated in advance, using a numerical value n being decided by digital selection data, that is, the divisor n of the divider. The prescaling ratio which is stored in a memory and is the function of the number m of samples being constituted by dividing sine wave and is the factor of multiplication pertaining to the clock frequency Clk can be set in advance by a three-bit command. This way, the output of the prescaler becomes the basic scanning clock signal Clkm of a memory.
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公开(公告)号：ITMI962489D0
公开(公告)日：1996-11-28
申请号：ITMI962489
申请日：1996-11-28
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： DI MARCO FRANCESCO , LO PRESTI MATTEO , GRAZIANI SALVATORE , BAGLIO SALVATORE
IPC: G01F1/696
Abstract: A fluid flow meter is of the type including a heated probe sensor of known electric resistance dipped into or swept by a fluid stream having a predetermined velocity. The sensor is capable of converting each flow velocity value to a voltage value, and is connected to a processor operating using fuzzy logic for producing the flow measurements. The sensor may be an NTC thermistor. The thermistor may be powered from a current generator, and the processor may include a neural network. The sensor may include at least two discrete thermistors, one being a hot thermistor and the other being a cold thermistor.
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公开(公告)号：ITMI962489A1
公开(公告)日：1998-05-28
申请号：ITMI962489
申请日：1996-11-28
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： DI MARCO FRANCESCO , LO PRESTI MATTEO , GRAZIANI SALVATORE , BAGLIO SALVATORE
IPC: G01F1/696
Abstract: A fluid flow meter is of the type including a heated probe sensor of known electric resistance dipped into or swept by a fluid stream having a predetermined velocity. The sensor is capable of converting each flow velocity value to a voltage value, and is connected to a processor operating using fuzzy logic for producing the flow measurements. The sensor may be an NTC thermistor. The thermistor may be powered from a current generator, and the processor may include a neural network. The sensor may include at least two discrete thermistors, one being a hot thermistor and the other being a cold thermistor.
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公开(公告)号：IT1286007B1
公开(公告)日：1998-06-26
申请号：ITMI962489
申请日：1996-11-28
Applicant: SGS THOMSON MICROELECTRONICS
Inventor： DI MARCO FRANCESCO , LO PRESTI MATTEO , GRAZIANI SALVATORE , BAGLIO SALVATORE
IPC: G01F1/696
Abstract: A fluid flow meter is of the type including a heated probe sensor of known electric resistance dipped into or swept by a fluid stream having a predetermined velocity. The sensor is capable of converting each flow velocity value to a voltage value, and is connected to a processor operating using fuzzy logic for producing the flow measurements. The sensor may be an NTC thermistor. The thermistor may be powered from a current generator, and the processor may include a neural network. The sensor may include at least two discrete thermistors, one being a hot thermistor and the other being a cold thermistor.
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