Inverter welder output current detecting circuit and detecting method based on direct current signals
The invention discloses an inverter welder output current detecting circuit and detecting method based on direct current signals. According to the inverter welder output current detecting circuit and detecting method based on the direct current signals, through the utilization of the principle that...
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| creator | GAO SHIJIE FENG GUANGYONG DING JUNJIE CAI TAO QI JIAN QIU JIBAO WANG QI MO GUIMIN CHEN ZHENGANG ZHAI HUIJIE XU YONGSHENG MO WENXIONG CHEN LIANG SHEN FEI QIU CHAOQUN |
| description | The invention discloses an inverter welder output current detecting circuit and detecting method based on direct current signals. According to the inverter welder output current detecting circuit and detecting method based on the direct current signals, through the utilization of the principle that the voltage drop through the breakover of the base electrode and the emitting electrode of a triode Q1 is similar to tube voltage drop of a diode D2, the voltage of the emitting electrode of the triode Q1 and the output current of an inverter welder are in a proportional relation and are output as detecting signals. Therefore, the accurate detection of the output current of the inverter welder can be achieved simply by adopting fewer devices and elements, and a circuit is simple and high in response speed. |
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According to the inverter welder output current detecting circuit and detecting method based on the direct current signals, through the utilization of the principle that the voltage drop through the breakover of the base electrode and the emitting electrode of a triode Q1 is similar to tube voltage drop of a diode D2, the voltage of the emitting electrode of the triode Q1 and the output current of an inverter welder are in a proportional relation and are output as detecting signals. 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According to the inverter welder output current detecting circuit and detecting method based on the direct current signals, through the utilization of the principle that the voltage drop through the breakover of the base electrode and the emitting electrode of a triode Q1 is similar to tube voltage drop of a diode D2, the voltage of the emitting electrode of the triode Q1 and the output current of an inverter welder are in a proportional relation and are output as detecting signals. 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According to the inverter welder output current detecting circuit and detecting method based on the direct current signals, through the utilization of the principle that the voltage drop through the breakover of the base electrode and the emitting electrode of a triode Q1 is similar to tube voltage drop of a diode D2, the voltage of the emitting electrode of the triode Q1 and the output current of an inverter welder are in a proportional relation and are output as detecting signals. Therefore, the accurate detection of the output current of the inverter welder can be achieved simply by adopting fewer devices and elements, and a circuit is simple and high in response speed.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Inverter welder output current detecting circuit and detecting method based on direct current signals |
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