System and method for balancing ultracapacitors
JP2026090462APending Publication Date: 2026-06-02KYOCERA AVX COMPONENTS CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- KYOCERA AVX COMPONENTS CORP
- Filing Date
- 2026-02-20
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing ultracapacitor systems face challenges in balancing the voltage across multiple capacitors, leading to inefficiencies and potential overheating due to the use of discharge resistors.
Method used
A system and method utilizing a balancing capacitor and switching devices, controlled by a control circuit, to transfer charge between ultracapacitors to equalize voltages, reducing heat generation and improving efficiency.
Benefits of technology
The system effectively balances ultracapacitor voltages, reducing heat and enhancing performance by using a balancing capacitor that generates less heat compared to conventional discharge resistors.
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Smart Images
Figure 2026090462000001_ABST
Abstract
We provide a system for equipping ultracapacitors. [Solution] The system 100 includes a plurality of ultracapacitors 110, a balance capacitor 120, a plurality of switching devices 130, and a control circuit. The control circuit is communicatively coupled to each of the plurality of switching devices. The control circuit controls the operation of a first pair of switching devices 132, 134 to couple the balance capacitors across the first ultracapacitor 112 of the plurality of ultracapacitors in order to transfer charge from the first ultracapacitor 112 to the balance capacitor. The control circuit also controls the operation of a second pair of switching devices 136, 138, different from the first pair, to couple the balance capacitors across the second ultracapacitor of the plurality of ultracapacitors in order to transfer at least a portion of the charge from the balance capacitor to the second ultracapacitor 114.
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