Digitally controlled charger with protection function

Abstract

The invention relates to a digitally controlled charger with a protection function. The digitally controlled charger with the protection function comprises a digital control module, a charging voltagedatabase, a charging current database, a selection module, a power module and an output protection module, wherein the selection module is used for selecting required charging voltage or charging current and outputting corresponding charging voltage data and overcharging current data; the power module is coupled to the commercial power to perform voltage reduction processing and output voltage data or current data after voltage reduction; and the output protection module receives the voltage data and the charging voltage data after voltage reduction, or compares the current data and the charging current data after voltage reduction, and outputs comparison data to the digital control module. According to the digitally controlled charger with the protection function, the output protection module compares the voltage or current after voltage reduction with the selected charging voltage or current, and cuts off a charging circuit when the voltage and current after voltage reduction are different from the selected charging voltage and current, and the situation that the damage of the object to be charged or incapability of charging due to the fact that the voltage and current after voltage reduction is too high or too low is reduced.

Description

technical field [0001] The invention relates to the technical field of chargers, in particular to a digitally controlled charger with a protection function. Background technique [0002] Existing chargers, such as a Chinese invention patent with publication number CN102468661A, disclose a charger for charging an object to be charged, which includes a base, a circuit board located in the base, and a circuit board connected to the charger. The transmission end also includes an energy storage device connected to the circuit board and a deck slidably arranged on the base. The deck presses the object to be charged against the electrical transmission end so that the object to be charged is electrically connected to the electrical transmission end. The energy storage device transmits its electric energy to the object to be charged through the electric transmission terminal for charging. [0003] The above-mentioned existing technical solutions have the following defects: when the ...

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Problems solved by technology

[0003] The above-mentioned existing technical solutions have the following defects: when the above-mentioned charger is connected to the mains to charge the object to be charged, the mains voltage needs to be reduced to a voltage suitable for charging the object to be charged, and then the electric energy is delivered to the object. , when transmitting electric energy, due to the different voltages that different objects to be charged can withstand, the charger needs to do corresponding step-down processing after connecting to the mains, and in this process, the voltage needs to be detected to ensure that the voltage can be reduced after the step-down. The object to be charged is normally charged, but the above-mentioned charger does not have the corresponding function, which may easily cause the voltage after the step-down to be too high, and then cause damage to the object to be charged, which needs to be improved

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