Transformer isolation based temperature detection circuit
The utility model relates to a transformer isolation based temperature detection circuit, which is technically characterized by comprising a control chip, a current limiting resistors R1, a blocking capacitor C1, an isolation sampling unit and a voltage signal generating unit, wherein a switching va...
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Main Authors | , , , , |
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Format | Patent |
Language | English |
Published |
18.03.2015
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Abstract | The utility model relates to a transformer isolation based temperature detection circuit, which is technically characterized by comprising a control chip, a current limiting resistors R1, a blocking capacitor C1, an isolation sampling unit and a voltage signal generating unit, wherein a switching value output port of the control chip is connected to the current limiting resistor R1, the resistor R1 is connected with the blocking capacitor C1 in series and then connected to the isolation sampling unit and the voltage signal generating unit, and output signals of the voltage signal generating unit are connected to an analog input port of the control chip. The temperature detection circuit provided by the utility model can isolate a thermistor from a control circuit through a transformer, thereby realizing temperature measurement for an object which requires electrical isolation, improving the safety and the reliability of measurement, and being simple in circuit structure. |
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AbstractList | The utility model relates to a transformer isolation based temperature detection circuit, which is technically characterized by comprising a control chip, a current limiting resistors R1, a blocking capacitor C1, an isolation sampling unit and a voltage signal generating unit, wherein a switching value output port of the control chip is connected to the current limiting resistor R1, the resistor R1 is connected with the blocking capacitor C1 in series and then connected to the isolation sampling unit and the voltage signal generating unit, and output signals of the voltage signal generating unit are connected to an analog input port of the control chip. The temperature detection circuit provided by the utility model can isolate a thermistor from a control circuit through a transformer, thereby realizing temperature measurement for an object which requires electrical isolation, improving the safety and the reliability of measurement, and being simple in circuit structure. |
Author | CHU ZILIN ZHANG XIANGQIAN ZHAO ZESHENG HE YONGPENG XU LI |
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Notes | Application Number: CN20142625391U |
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Snippet | The utility model relates to a transformer isolation based temperature detection circuit, which is technically characterized by comprising a control chip, a... |
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SubjectTerms | MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE PHYSICS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR |
Title | Transformer isolation based temperature detection circuit |
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