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本文介绍了新型开关元件ＩＧＢＴ管作为逆变开关元件的交流矩形波逆变器的原理。并通过实验证明，该电源具有良好的引弧和稳弧性能，在铝合金焊接方面具有较好的工艺性能。
This article introduces the principle of the new switching element IGBT tube as the AC rectangular wave inverter of the inverter switching element. Experiments show that the power supply has good arc starting and arc steady performance, and has good process performance in aluminum alloy welding.