Switches S1 and S2 are turned on and off under zero current switching (ZCS). The current passing through the switches is sinusoidal, reducing switching loss. Fig. 8 Current waveform of inductor Full size image Figure 9 shows the simulated current and voltage waveforms. The results show that (...
Power Range 0.75kw-630kw Input Voltage Three Phase 380V; Single Phase 220V Control Method Vector Control& V/F Control Input Frequency 50Hz/60Hz Certificate CE; ISO Output Voltage 0-480V Max.Output Frequency 5000Hz Braking Unit Build-in Communciation RS485 En...
A novel soft switching inverter using two small coupled magnetics in one resonant pole is proposed to guarantee the main switches operating at zero-voltage-switching (ZVS) from zero load to full load and the auxiliary switches at zero-current-switching (ZCS) with load adaptability and small ...
A ZCS current-fed full-bridge PWM converter with self-adaptable soft-switching snubber energy IEEE Trans. Power Electron. (August 2009) There are more references available in the full text version of this article. Cited by (8) Photovoltaic water pumping systems for irrigation: Principles and adva...
所设计的软开关逆变电源技术参数要求如下,逆变频率20k(z)焊机的额定输入电压为380,三相电,额定输入功率20 kW,焊机输出电流最大值400A,输出工作电流调节范围为20~400A。 2.1 阻断电容Cx的参数计算 设谐振电感在箝位续流时间的伏秒积ET是已知的,则可通过式(6)计算阻断电容Cx ...
applied sciences Article Simple Lossless Inductive Snubbers-Assisted Series Load Resonant Inverter Operating under ZCS-PDM Scheme for High-Frequency Induction Heating Fixed Roller Koki Ogura 1, Srawouth Chandhaket 2,*, Mohan Lal Kolhe 3 , Siraporn Sakphrom 2 and Saad Mekhilef 4,5,6 1 ...
The converter operates in three modes pure buck-boost series resonant modes. With the proper design of transformer inductance Lmunder certain operating conditions, the primary side of MOSFETs can achieve ZVS near zero current switching (ZCS). The overall efficiency of the system is about 97% at ...