Intrinsic safety cut-off type current limiting circuit and electronic equipment
The embodiment of the utility model discloses an intrinsic safety cut-off type current limiting circuit and electronic equipment, relates to the technical field of intrinsic safety, and is beneficial to solving the safety problem in the electronic equipment. The intrinsically safe cut-off type curre...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The embodiment of the utility model discloses an intrinsic safety cut-off type current limiting circuit and electronic equipment, relates to the technical field of intrinsic safety, and is beneficial to solving the safety problem in the electronic equipment. The intrinsically safe cut-off type current limiting circuit comprises a power supply short-circuit protection circuit and at least one overcurrent protection circuit, the first end of the power supply short-circuit protection circuit is electrically connected with the voltage input end; the first end of the current sampling sub-circuit is electrically connected with the first end of the trigger power supply output short circuit sub-circuit; the second end of the current sampling sub-circuit is electrically connected with the second end of the trigger power supply output short-circuit sub-circuit, the third end of the trigger power supply output short-circuit sub-circuit is electrically connected with the voltage output end, and the fourth end of the trig |
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