Intelligent negative pulse repairing charger

Abstract

The invention provides an intelligent negative pulse repairing charger, relating to the technology as follows: a switching power supply technology is adopted, a semiconductor power device is used as a switch, and commercial electricity is converted into voltage and current required by accumulator charging. The charger is provided with a charger case, and an electronic circuit comprises a rectifier bridge, an MOSFET (metal-oxide-semiconductor field effect transistor), a high frequency pulse transformer, a fast recovery diode rectifying circuit, a sampling circuit, a negative pulse loop, a main control chip IC1, a digital tube display, a photoelectric coupler IC3 and a power supply management chip IC2, wherein the input terminal of the rectifier bridge is connected with an alternating current power supply, the output terminal of the rectifier bridge is connected with the high frequency pulse transformer by the MOSFET, the output terminal of the high frequency pulse transformer is connected with the fast recovery diode rectifying circuit, the direct current output terminal of the fast recovery diode rectifying circuit is connected with the sampling circuit, a singlechip IC1 is connected with the photoelectric coupler IC3, the photoelectric coupler IC3 is connected with the management chip IC2, the power supply management chip IC2 is connected with the MOSFET, and the main control chip IC1 is also respectively connected with the sampling circuit, the negative pulse loop and the digital tube display.

Description

Technical field [0001] The intelligent negative pulse repair charger of the present invention relates to a switching power supply technology, using a semiconductor power device as a switch to convert the mains power into the voltage and current required for battery charging. As the capacity and stored electric energy of the battery are different, the required voltage and current are different at different charging stages. The intelligent negative pulse repair charger uses a single-chip microcomputer to accurately sample, and uses pulse width modulation (PWM) to control the opening of the electronic switch. It can control the output of switching power supply and realize closed-loop control. Background technique [0002] At present, a large number of popular three-stage chargers on the market divide the charging process into three stages: constant current, constant voltage, and floating charge. Take the 36V12Ah lead-acid battery pack that is used in my country's electric vehicle in...

AI Technical Summary

Problems solved by technology

[0006] 2. The charging process lacks a rest period

[0007] 3. During the charging process, the lack of negative pulse activation, even if it is only 1% of the charge, will have an irreplaceable effect on inhibiting battery vaporization and increasing the vaporization voltage

[0008] 4. The charging frequency is monotonous

It has gradually failed to meet the needs of battery buyers

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