Super-capacitor voltage-maintaining control circuit
By using the supercapacitor voltage maintenance control circuit and the MCU to monitor the voltage and replenish power in real time, the problem of voltage drop caused by supercapacitor self-consumption is solved, and a stable voltage supply is achieved at the load end and the reliability of the system is improved.
Patent Information
- Application Number
- CN202422642187.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When a supercapacitor is left idle for a long time, its voltage drops due to self-consumption and it cannot continuously provide a stable voltage to the load.
A supercapacitor voltage maintenance control circuit was designed. The voltage of the supercapacitor PACK was monitored by an MCU, and real-time power replenishment was achieved using a DC/DC isolated BOOST constant current power supply and a matrix switch to ensure that the voltage was within the set range. A matrix optical MOS switch integrated control circuit was used to electrically isolate high and low voltages to avoid safety accidents.
The voltage stability of the supercapacitor system is achieved, ensuring that the load end always has sufficient energy supply, reducing the cost and volume of the control system, and improving the reliability and safety of the system.