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INJOINIC has obtained patents for sampling resistor short circuit protection circuits and fast charging chargers, providing convenient and effective short circuit protection control for circuits

Article Source：China National Intellectual Property Administration | Author：Financial Sector | Issuing Time：2024.04.08
On April 8, 2024, the financial sector reported that, according to the announcement of the China National Intellectual Property Administration, Shenzhen INJOINIC Technology Co., Ltd. had obtained a patent entitled "a sampling resistance short circuit protection circuit and a fast charging charger", with the authorization announcement No. CN114336533B and the application date of October 2020.



The patent abstract shows that the present invention provides a sampling resistor short circuit protection circuit, comprising a switch control circuit, a logic control circuit, a detection sampling circuit, and a transmission path switch. The switch control circuit is used to periodically emit a first conduction signal and a first turn off signal; The logic control circuit is used to detect and detect the first sampling electrical signal of the sampling circuit, collect the first conduction signal and first turn off signal of the switch control circuit, obtain the switch cycle and conduction time of the switch control circuit based on the first conduction signal and first turn off signal, and determine whether the circuit has entered the sampling resistance short circuit protection state based on the switch cycle and conduction time, and the first sampling electrical signal. Based on the judgment result, output the first switch control signal for the transmission path switch. The present invention also provides a fast charging charger and a sampling resistor short circuit protection method. The present invention can conveniently and effectively provide short-circuit protection control for circuits.
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