This paper presents the application of MATS Algorithm that used to find optimum membership function shapes for a fuzzy logic controller and used to find optimum limit range of a compensate reference current amplitude. This amplitude used to create three-phase compensate reference current signals that compare with three-phase compensate real current signals at hysteresis band current controller (HBCC) to generate gate drive signals of a FL-APF. The FL-APF delivers reactive power to point of common coupling and reduce harmonics components of all supply currents. The MATS evolution mechanisms were found optimum membership functions for fuzzy logic controller. The simulation results after setting optimum parameters were found that the fuzzy logic controller control active power filter to compensate reactive power at the point of common coupling and limit source currents THD to 5% in range and complied with IEEE 519 standard

The electronic science is complicated and highly abstract. The contents are abstracts and difficult to understand. This research was developed by computer assisted instruction lesson on electronic circuit multimedia using jigsaw puzzles. The objective was studied the achievement of circuit electronics and the satisfaction of students in grade 9. There were 132 students. The results from the pretest and posttest of computer assisted instruction lesson on electronic circuit multimedia. They have highly scores and satisfied.

This paper presents a quadrature sinusoidal oscillator providing sinusoidal signal which differs in phase. The features of the proposed circuit can be electronically controlled. The proposed circuit consists of 4 operational transconductance amplifiers(OTAs) and 2 grounded capacitors which is able to control the oscillation frequency(OF) and condition of oscillation(CO). To confirm the performance and theory of proposed circuit is verified by PSPICE simulations and the experimental results can be achieved by using the commercial parts(LM13700s). The power consumption is about 33.3mW at supply voltages