New industrial development of the power supply frequency vibrator
5 scenario-driven chip IR2130. IR2130's biggest advantage is that a total run, the only way to control power. And its 6-channel output signal also has a level 3-way conversion, can drive low-voltage side power device, can also drive high side power device. IR2130 also has a current amplification and over-current protection; under-voltage lockout, and can indicate the voltage and over current state function; input noise suppression; while automatically generated on the lower side of the drive required for dead time (2s) and other functions. Practical application of the drive circuit shown in Figure 6. Figure 6 4.3 using IR2130 driver circuit protection circuit and main circuit design as part of a drive circuit current protection, so the protection circuit voltage is only designed to protect, including input overvoltage, undervoltage,
ralph lauren pas cher, overvoltage protection and output, undervoltage protection. Protection circuit shown in Figure 7. Among them, the realization of these types of protection circuits are similar, that is, the output (or input) voltage through the divider to the inverting terminal of comparison, the phase comparator termination for a given voltage. Their difference is the output of the comparator is different from the input over-voltage and output over-voltage, the comparator output low; input voltage and output voltage, the comparator output high. Previous three kinds of output protection circuit 233 Volume 7 No. 4 April 2004 drug polyester pillar Que POWERSUPPL '~ TECHNOLOGIESANDAPPLICATIONSV01.7NO. 4April2004 Figure 7 protection circuit operation through the 4011's after a Output voltage, the comparator output high, LED lights, and sounds an audible alarm buzzer. As the DC / DC part of the output voltage is relatively low, therefore, part of the main circuit is used in low-voltage power switch MOSFET. Meanwhile, in order to reduce the switching process in the power of the burden on the main circuit part is a buffer circuit, shown in Figure 8. One three-phase MOSFET inverter bridge consists of six components, D. ~ D is the MOSFET comes with integrated fast recovery diode, ruler, D, c form a buffer circuit (you can see is u, V, W three-phase equivalent circuit of the buffer circuit). Figure 8 inverter main circuit 5 Analysis and Conclusion In this experimental design, the various parts of the circuit simulation and experiment, and complete the prototype one. During normal operation of the motor line voltage and current experimental waveforms shown in Figure 9 and Figure 10. The design of small size,
abercrombie pas cher, light weight, the output voltage and current harmonics is small, the advantages of higher power factor, power output is expected to overcome the increase as a result of the forward converter power switch voltage and current stress problems, in accordance with this design products will be more cost-effective, more competitive. I. Iy] l which] iJ Ⅲ ¨ r Figure 9200Hz vibrator when line voltage waveform. I. 0.11L. L] LLul 'regret. , Xing Figure 10200Hz phase current waveforms when the vibrator References [II Ouyang Lin. Concrete vibrator with 200Hz generators Research [J]. Small motor, 2000, (1). [2] Zhang Zhansong. Principle and design of switching power supply [M]. Beijing: Electronic Industry Press. 1998. [3] Zhang Youde, single-chip microcomputer principle and experimental application [M]. Shanghai: Fudan University Press,
franklin marshall soldes, 2000. [4] Tang Yiliang. IGBT drive inverter topology and IR2l30 in the application [J]. Electric drive, 1999, (1). [5] TangYiliang, CuiWenjin. XieXiaorong, eta1.80C196MCMicrocontroller-basedInverterMotorControlandIR2130Six-outputIGBTDriver [A]. ElectricMachinesandDrivesInternationalConferenceIE MD99 [C] ,1999,
abercrombie paris,655-657. Author Su-line (1978), male, Master, research direction for the Power Electronics and Power Drives a HU Changsheng (1972 A), male, Ph.D., research direction for the right foot with the electric drive electric power. Zhong-Chao (1942) Download, School of Electrical Engineering, Zhejiang University, Professor, Ph.D., research direction for power electronic circuits and power electronic devices.
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