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FET inverter arc welding machine in the hands of the Application

Xiao four primary voltage waveform, conduction imbalances As a result of a half bridge inverter circuit, MOs tube conduction imbalance can be compensated, but due to the small time constant control system. Fast channel interlock control, and frequent load short-circuit welding and other reasons. Sometimes pipes will turn a group of MOS. Another group of sense. Sometimes the probability of short circuit to control a group of MOs often in large conduction angle. Within a certain period of time that a group of MOS MOSFET is larger. So one way would produce the high magnetic transformers. In welding. Will hear a slight high-frequency transformer magnetized one-way vibration and sound. Reasonable choice as long as the high-frequency transformer flux density, taking a fixed flux density 8 margin, it will not produce magnetic saturation caused by over-current. Lead to inverter failure. In addition. Control system has also joined the width of the maximum on limitations, the current maximum limit given outside the trailer. Temperature protection circuit and so on. . V. CONCLUSIONS (1) Select a short reverse recovery time fast rectifier diodes. Minimize the system time constant, can effectively prevent over-current MOS tube. (2) using fast pass driving circuit interlock between the two groups were in the driver back on the road parallel less resistance. Absorption when the interference signal conduction, which can effectively solve the high-voltage high-current drive circuit for interference,[link widoczny dla zalogowanych], to prevent the MOS tube through. Part of the Department of Electrical and Mechanical Science and Technology held. Periodical seminars to explore the new situation. How to improve the mechanical and electrical quality of the Ministry of Machinery and promotion of science and technology journals journals benefits. Electrical and Mechanical Science and Technology Department in 1991 '20 ~ 25 l Luoyang hosted in the machinery industry scientific journals editor, deputy editor of the work of a total of 55 seminars. Meeting to how to improve the quality of science and technology periodicals as the main content. Running the same time how to improve the social and economic benefits of publications depth discussion. Conference on Q: Mechanical Science and Technology Information from the editing room by the Director Chang Jung Min conducted in 1990 in Guiyang, quality evaluation of science and technology periodicals are and how to correct problems found. Explained in detail. Electrical and Mechanical Services Department, Ministry of Science and Technology Division results and Majing Kun Li Shengfu Comrade Director, Mechanical Science and Technology Information by Sun Jinlin Director of Liaison Office, Office of the machinery industry of high technology journals are to be imposed per comrades spoke. Running the right way to clarify the current and relevant administrative section and Farquhar. He welder \(3) half-bridge inverter, high frequency transformer flux density should have a certain margin, to prevent the welding process produces a result of unidirectional magnetization inverter failure. References 1 Li Xianyao and so on. FET inverter welding power supply and control system,[link widoczny dla zalogowanych], the national welding power conference proceedings, 1989. '2 Shi-Sheng Huang. FET performance of arc welding inverter, to defend the pick of. 1986. (2). 3 Li Yin Huang and so on. zx7-160 FET inverter DC manual arc to defend the machine research, welding technology 1990 (1) 4 Xu higher. PWM inverter power supply, Science Press. 1983. * 5 Zhao Jiarui and so on. New inverter power source,[link widoczny dla zalogowanych], welding power national academic conference papers. I989. Automotive Welding Technology Seminar held in Luoyang April 1991 n ~ 15 was held at the small city of Luoyang in order to improve the quality of auto welding center welding Zhu car pit surgery seminar. 30 out of rot at the meeting were aimed j} spring car removal. They enjoy the car plant 42 large welding industry were ten cars. Discussion platform to improve the car received the welding quality of the auto welding school wood paper. Include: body welding tooling. Fixture design i spot, seam welding control Zhu surgery reviewed. Energy Saving Auto welding welding process i die i auto light vehicle brake shoes and equipment for resistance welding processes such as welding Ren Fu 20. Seminar that: 1. The need to convene the same group of countries of the Qing {from welding fixtures, welding fixtures automatic production line design and application. Energy welding process equipment, materials, promotion and application of academic research will be. Car manufacturers to have better welding quality. 2. By the second car factory, Chengdu Welding Research Institute, Shanghai, a dagger machine company, Beijing Automotive Motor Company initiative calls for Koo Union sets the second Chinese auto industry companies,[link widoczny dla zalogowanych], the Department of Space flight home, the Ministry of Machinery Electronics Division project. Editor 5 car welding quality standards. Juan amount of welding a vehicle basis. General automotive welding quality standards with technology standards for wood (GB), auto arc welding process Zhu technical standards, standards for cars solder process technology of wood welder bit of salt automotive, appliance, officials tools, welding equipment maintenance hopane they enjoy, and maintenance specifications and other standards . Hope that the National Conference migration in 5-made cars, automobile repair automotive industry is to note good quality of welding, resistance welding automotive quality standards. High-efficiency,[link widoczny dla zalogowanych], energy saving technology of welding salaries, new equipment, new material defense. Welding quality pricey the car to the new wood level. \
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