scholarly journals Manufacture of High Current Low Voltage Power Supply with Using the Mot (Microwave Oven Transformer)

2020 ◽  
pp. 301-306
Author(s):  
Arman Hidayat Sirait ◽  
Kerista Tarigan ◽  
Marhaposan Situmorang
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Electrical Equipment ◽  
Microwave Oven ◽  
High Current ◽  
New Methods ◽  
Iron Smelting ◽  
Parallel Circuit ◽  
Secondary Winding

The manufacture of low voltage high current power supply using the MOT (Microwave Oven transformer) has been done. The purpose of this work is to convert low voltages into high currents by utilizing simple electrical equipment. This work use of varying voltages and different windings which are changed on the secondary winding section with a cable size of 240 mm 2, NYA cable type. The test is carried out with a series circuit, parallel circuit, and single circuit by utilizing a voltage of 30 V, 60 V, 90 V, 120 V and 5 different variations of winding. The results of this test provide knowledge of new methods that can be applied to iron smelting.

scholarly journals Application of the Lyapunov Algorithm to Optimize the Control Strategy of Low-Voltage and High-Current Synchronous DC Generator Systems

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 871 ◽  
Author(s):  
Jinfeng Liu ◽  
Xiaohai Tan ◽  
Xudong Wang ◽  
Herbert Ho-Ching IU
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Definite Function ◽  
High Current ◽  
Generation System ◽  
Control Variables ◽  
Loop Control ◽  
Decoupling Method ◽  
Negative Definite Function ◽  
Current Sharing

In the present study, a novel multiple three-phase low-voltage and high-current permanent magnet synchronous generation system is proposed, which has only half-turn coils per phase. The proposed system is composed of a generator and two confluence plates with 108 rectifier modules. The output can reach up to 10,000 A continuous DC power supply, which is suitable for the outdoors and non-commercial power supply. The application of the Lyapunov algorithm in the synchronous rectification control was optimized. A current sharing loop control was added to the closed-loop control to ensure a stable output voltage and the output current sharing of each rectifier module. Since the two control variables solved by the Lyapunov algorithm were coupled and the negative definite function of the Lyapunov algorithm could not be guaranteed in this system, a simple decoupling method was used to decouple the control variables. Compared to the conventional control, the proposed strategy highly improved the dynamic performance of the system. The effectiveness of the proposed strategy was verified by the simulation. The 5 V/10,000 A hardware experiment platform was built, which proved the feasibility and validity of the proposed strategy for a high-power generation system.

Development of a Power Supply for the Food Processing Device, Using High Pressure due to Evaporation of Aluminum Wire by Discharging High Current

2013 ◽  
Vol 767 ◽  
pp. 244-249 ◽  
Author(s):  
Soichiro Hanashiro ◽  
Katsuya Higa ◽  
Takumi Matsui ◽  
Ryo Matsubara ◽  
Osamu Higa ◽  
...  
Keyword(s):  
Shock Wave ◽  
High Pressure ◽  
Power Supply ◽  
Food Processing ◽  
Low Voltage ◽  
High Current ◽  
Aluminum Wire ◽  
Instantaneous Discharge ◽  
Current Flows ◽  
Processing Device

We have developed the food processing device which uses underwater shock waves generated by gap discharging and electrical sparking. This method is dangerous due to the fact that it requires a very high voltage. Thus, we have focused on evaporation of aluminum wires occurred by the instantaneous high current and low voltage from a charged capacitor. When instantaneous high current flows through the aluminum wire is anchored between electrodes, a shock wave is generated by the evaporation of the aluminum wire. In this research, we have developed a power supply module for the food processing device using high pressure of shock wave due to evaporation of aluminum wire by instantaneous discharge of high current. In the present stage, the evaporation of aluminum wire can generate 70% of pressure compared to the gap discharge, and as for the electric power, it reached 22.5% of the gap discharge. It has been understood that the number of the aluminum wires are important to obtain a high pressure, when the charged capacitor discharged the charge. We found that evaporation of aluminum wire can generate high pressure with low voltage, which is more effective than the gap discharging in terms of safety.

scholarly journals Design of Power Supply for Green PC using Low Voltage High Current LLC Resonant Converter

2014 ◽  
Vol 19 (3) ◽  
pp. 211-219
Author(s):  
Young-Do Yoo ◽  
In-Dong Kim ◽  
Eui-Cheol Nho ◽  
Myung-Hyo Ryu ◽  
Ju-Won Baek
Keyword(s):  
Power Supply ◽  
Low Voltage ◽  
Resonant Converter ◽  
High Current ◽  
Llc Resonant Converter
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