Published:2011/4/8 1:38:00 Author:may | Keyword: IGBT, CO2 gas, shielded welding, power supply
1, In order to accurate control the process of short circuit, main circuit adopts IGBT with very high working frequency as switch power device. The main circuit of CO2 gas shielded welding power supply adopts full bridge structure.
2, 80C196KB control system structure principle block diagram
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Published:2011/4/8 1:31:00 Author:may | Keyword: IGBT soft switch, contravariant, arc welding power
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Published:2011/4/8 1:59:00 Author:may | Keyword: three phase, frequency control system
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Published:2011/4/8 1:29:00 Author:may | Keyword: Short-circuit protection, function test method, IGBT drive
The main problem IGBT solved is how to better protecting IGBT under the situation of over current, short circuit and over voltage. The error of over current generally need longer time to make the power supply to over heating, so the protection to it is mainly solve by main control board. In the diagram, C=10~470μF,Rlimit=10~100Ω,Creset =10nF. (View)
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Published:2011/4/8 1:57:00 Author:may
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Published:2011/3/22 22:55:00 Author:muriel | Keyword: 110~380V , AC, automatic, regulated voltage power supply
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Published:2011/3/22 22:55:00 Author:muriel | Keyword: 12V, 100mA, regulated voltage power supply
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Published:2011/3/22 22:55:00 Author:muriel | Keyword: 12V, 18V, Twin channel , regulated voltage power supply
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Published:2011/3/22 22:54:00 Author:muriel | Keyword: 12V, 5V, Twin channel, regulated voltage power supply
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Published:2011/3/22 22:54:00 Author:muriel | Keyword: 120V, Regulated voltage power supply
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Published:2011/3/22 22:53:00 Author:muriel | Keyword: 12V, collector output, regulated voltage power supply
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Published:2011/3/22 22:53:00 Author:muriel | Keyword: 12V, collector output , regulated voltage power supply
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Published:2011/3/22 22:53:00 Author:muriel | Keyword: 12V, collector output, regulated voltage power supply
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Published:2011/3/21 0:39:00 Author:muriel | Keyword: 12V, Voltage stabilizer
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Published:2011/3/21 0:39:00 Author:muriel | Keyword: 12V, Voltage stabilizer
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Published:2011/3/22 22:51:00 Author:muriel | Keyword: 10~65V, Regulated voltage power supply
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Published:2011/3/21 0:39:00 Author:muriel | Keyword: 12V, Voltage stabilizer
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Published:2011/3/21 0:39:00 Author:muriel | Keyword: 12V, Voltage stabilizer
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Published:2011/3/22 22:49:00 Author:muriel | Keyword: 0~±6.6V, adjustable, tracking, regulated voltage power supply
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Published:2011/3/22 22:49:00 Author:muriel | Keyword: 0~150V, Regulated voltage power supply supply
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