Relevant bibliographies by topics / PWM controller UC3843 and UC3845

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'PWM controller UC3843 and UC3845'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "PWM controller UC3843 and UC3845"

1

Wang, Yu Kui, Zhen Long Wang, Bo Yan Song, and Fu Qiang Hu. "Practical Design for Energy-Saving EDM Supply System." Key Engineering Materials 447-448 (September 2010): 247–52. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.247.

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In this paper a kind of architecture for an energy-saving EDM supply composed of three serial stages in the topology and its practical design are discussed. Various special controllers and its assisted circuits are introduced in the each of the three serial stages. The PFC controller UC3854 placed on the front stage provides satisfactory input power factor of the system. The PWM controller UC3875 mounted on the middle stage realize the closed control of the current of the inductance limiting machining current. An embedded controller PIC16F877 on the final stage is chosen to setting such machining variables as peak current, discharge duration and pulse interval. The communication with host PC is also realized by the same embedded controller. The architecture based on model of multi-controller parallel working guarantees capacity of the system real-time process. The prototype of the energy-saving EDM pulse supply using MOSFET power device is developed. A lot of experiments have demonstrated the feasibility and stability of the practical design.
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2

Zarębski, Janusz, and Krzysztof Górecki. "Spice-aided modelling of the UC3842 current mode PWM controller with selfheating taken into account." Microelectronics Reliability 47, no. 7 (2007): 1145–52. http://dx.doi.org/10.1016/j.microrel.2006.07.092.

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3

Huang, Peng Fei, Chang Wu Wang, Zhen Yang Lu, and Li Lai Bai. "Study on Short-Circuit Transition Welding System Based on Push-Pull Wire Feeder." Advanced Materials Research 569 (September 2012): 320–23. http://dx.doi.org/10.4028/www.scientific.net/amr.569.320.

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A welding system based on a push- pull wire feeder was designed and how it works was analyzed. The system included the welding power supply, the wire feeding system, and the coordination controller. The power supply used a current mode PWM IC UC3846 as the controller, which made sure the security and the dynamitic responsibility of the system. The critical fact to realize the push-pull wire feeding system was that a small inertia and fast response AC servo motor was selected. TMS320F2808 was used as the core coordination controller of the system, which made the welding power source and the wire feeding system work coordinately. The motor will pull the wire back when the arc was in the period of short-circuiting, and push the wire forward when the arc was in arc period. The results proved the system can meet the welding demands.
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Mahmud, Nazriah, Azli Yahya, and Trias Andromeda. "Electrical Discharge Machining Flyback Converter using UC3842 Current Mode PWM Controller." International Journal of Power Electronics and Drive Systems (IJPEDS) 5, no. 2 (2014). http://dx.doi.org/10.11591/ijpeds.v5i2.6680.

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Mahmud, Nazriah, Azli Yahya, and Trias Andromeda. "Electrical Discharge Machining Flyback Converter using UC3842 Current Mode PWM Controller." Proceeding of the Electrical Engineering Computer Science and Informatics 1, no. 1 (2014). http://dx.doi.org/10.11591/eecsi.v1.430.

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Dissertations / Theses on the topic "PWM controller UC3843 and UC3845"

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Starec, Stanislav. "Akumulátorový svařovací zdroj." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399544.

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This master thesis is focused on proposition and following implementation of DC arc welder. This paper is based on semester’s paper, where the first version was realized. The welder is powered by a battery pack with LiFePO4 type cells. Battery cells are protected by BMS circuits. The driving electronics controls the duty cycle step-down (buck) converter in a closed current or power regulation loop. The power regulator has been designed and validated by simulations. Switching power transistors, low side and high side, are implemented by optically isolated gate drivers. Charging the battery is solved by a switching flyback converter. For the charger and the welder is sheet metal construction made of aluminum sheet.
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