HANIF AZIZ | Universiti Tenaga Nasional (original) (raw)

Papers by HANIF AZIZ

This paper outlines the design of a dc power supply for lead-free wave soldering machine. The des... more This paper outlines the design of a dc power supply for lead-free wave soldering machine. The design can be divided into two parts which consist of a three-phase diode bridge rectifier and buck-converter. A three-phase ac source voltage is stepped down and converted to dc voltage. The dc voltage is further stepped down to the specified rated voltage of the soldering machines. Theoretical calculation and analysis for the design is presented in this paper, along with the simulation model built by MATLAB/Simulink software. The simulation results are proved to match with the design specifications.

a. The op-amp is placed in the lower central portion of the protoboard. The notch is positioned s... more a. The op-amp is placed in the lower central portion of the protoboard. The notch is positioned so that the pin 1 is at the top left. Each pin of the op-amp is made sure to have been inserted into a separate hole.

For this assignment, we are required to design an op amp circuit which will solve the equation gi... more For this assignment, we are required to design an op amp circuit which will solve the equation given. In our case, the equation is Vo = 0.5(V1+V2) – 3V2.
After hours of brainstorming and trial and error, we had successfully built, ran it in LTspice, and got the correct output voltage for each of the test input voltages by using this circuit:

This paper outlines the design of a dc power supply for lead-free wave soldering machine. The des... more This paper outlines the design of a dc power supply for lead-free wave soldering machine. The design can be divided into two parts which consist of a three-phase diode bridge rectifier and buck-converter. A three-phase ac source voltage is stepped down and converted to dc voltage. The dc voltage is further stepped down to the specified rated voltage of the soldering machines. Theoretical calculation and analysis for the design is presented in this paper, along with the simulation model built by MATLAB/Simulink software. The simulation results are proved to match with the design specifications.

a. The op-amp is placed in the lower central portion of the protoboard. The notch is positioned s... more a. The op-amp is placed in the lower central portion of the protoboard. The notch is positioned so that the pin 1 is at the top left. Each pin of the op-amp is made sure to have been inserted into a separate hole.

For this assignment, we are required to design an op amp circuit which will solve the equation gi... more For this assignment, we are required to design an op amp circuit which will solve the equation given. In our case, the equation is Vo = 0.5(V1+V2) – 3V2.
After hours of brainstorming and trial and error, we had successfully built, ran it in LTspice, and got the correct output voltage for each of the test input voltages by using this circuit: