Detection circuit and detection device for detecting quiescent current loss of product
The utility model describes a detection circuit and a detection device for detecting quiescent current loss of a product, the detection circuit comprises an MCU, a Hall linear chip, a first operational amplifier and a second operational amplifier, the power supply end of the Hall linear chip is conn...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model describes a detection circuit and a detection device for detecting quiescent current loss of a product, the detection circuit comprises an MCU, a Hall linear chip, a first operational amplifier and a second operational amplifier, the power supply end of the Hall linear chip is connected with a direct current power supply, the grounding end of the Hall linear chip is grounded, and the first operational amplifier is connected with the second operational amplifier. An output end of the Hall linear chip is respectively connected with a PA2 pin of the MCU, a non-inverting end of the first operational amplifier and a reverse end of the second operational amplifier, the reverse end of the first operational amplifier, a forward end of the second operational amplifier and a PA4 pin of the MCU are connected with one another, and the other end of the first operational amplifier is connected with the other end of the second operational amplifier. The output end of the first operational amplifier is conn |
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