Intelligent charging circuit

Through the design of the intelligent charging circuit, the problems of long charging time and short standby time in the oscilloscope power supply method are solved, and the needs of lithium battery pack transportation and market adaptability are adapted, achieving efficient charging and discharging of lithium batteries and long standby time of external instruments.

CN222673965UActive Publication Date: 2025-03-25QINGDAO HANTEK INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421345457.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-03-25
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

The power supply methods of existing flat-panel oscilloscopes or handheld oscilloscopes have problems with long charging time and short standby time, and lithium battery packs are difficult to air transport, which limits their foreign trade sales and their ability to adapt to foreign markets.

Method used

An intelligent charging circuit is designed, including an adapter detection circuit, a processor control module, a power management module, a power supply circuit and a lithium battery. The adapter detection circuit detects the plug-in status of the charging connector. The processor control module and the power management module work together to control the current path, realize efficient charging and discharging of the lithium battery, and supply power to external instruments.

Benefits of technology

It realizes rapid detection of the insertion and unplugging status of the adapter, optimizes the charging and discharging process of lithium batteries, extends the standby time of external instruments, is suitable for various lithium batteries, and supports a variety of adapter types, solving the problems of lithium battery pack transportation and market adaptability.

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Abstract

The utility model discloses an intelligent charging circuit, which comprises an adapter detection circuit, a processor control module, a power management module, a power supply circuit and a lithium battery, wherein the processor control module is provided with a control end which is connected with the power supply management module, a register is arranged in the power supply management module, and the processor control module configures the register in the power supply management module through an I2C circuit so as to control a current output path of the power supply management module; according to the utility model, when the adapter is inserted, the processor control module controls the power management module to supply power to the lithium battery through the first output end and supply power to an external instrument connected with the external interface through the second output end; when the adapter is pulled out, the lithium battery is boosted through an MOS tube in the power management module and the boosted circuit, and then the lithium battery continues to supply power to the external instrument through the second output end.
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