A mobile power supply isolated high-efficiency dynamic voltage reduction circuit

CN224697432UActive Publication Date: 2026-08-28SHENZHEN DIFUNG ENERGY TECH CO LTD
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Patent Information

Application Number
CN202521669632.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2026-08-28
Estimated Expiration
2035-08-07

AI Technical Summary

Technical Problem

传统的移动电源多采用串联或并联的电池组以提高输出电压和容量,但由于电池的容量、内阻、充放电特性存在一定差异,导致电池组在长期使用过程中产生不均衡问题,出现过充或过放现象,严重影响了电池组的使用寿命和安全性

Benefits of technology

采用多个电源模块串联的方式实现电池组的高效利用。通过各模块独立配置的降压转换开关和有源功率开关,可分别控制各电池模块的充放电电流,从而实现电池间的有效均衡。同时,通过芯片控制各开关的占空比信号,灵活调节每个模块的输出电压及电流,能够适应不同负载需求和电池状态。当某电池模块发生故障时,可迅速将其隔离,不影响系统的整体运行,极大提升了系统的容错性和稳定性。此外,本发明无需额外的均衡电路,减少了系统的复杂度,降低了生产成本,并显著提高了电池组整体的使用效率和寿命。

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Abstract

The utility model discloses a portable power supply isolation type high -efficient dynamic voltage -stabilizing circuit, including including n power module, power module includes battery, voltage -reducing conversion switch, active power switch, inductor, electric capacity, electric capacity is parallelly connected in the output of power module, the output of n power module is in proper order series connection, and the input of power module is battery, and one end of voltage -reducing conversion switch and inductor is connected with respectively at its both ends, and the other end of voltage -reducing conversion switch is connected with one end of active power switch and the other end of inductor, and the other end of active power switch is connected with one end of electric capacity, and the other end of electric capacity is connected with inductor, wherein, the electric capacity of first and n power module is connected with load. The utility model aims at providing a kind of dynamic voltage -stabilizing circuit that can efficiently manage each battery state in battery pack and improve overall power efficiency.
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