Solar supplementary power supply system based on primary battery and composite capacitor

Abstract

The invention discloses a solar supplementary power supply system based on a primary battery and a composite capacitor. The solar supplementary power supply system comprises a solar energy collectioncircuit, a charging and discharging module and a primary battery module, wherein the charging and discharging module is connected with the primary battery module in parallel and used for supplying power to a load; the solar energy collection circuit is used for collecting electric energy; and the solar energy collection circuit supplies power to the charging and discharging module and is used forcharging the charging and discharging module. The problems that the primary battery is poor in endurance, short in service life and unstable in power supply are solved.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a solar supplementary power supply system based on a primary battery and a composite capacitor. Background technique [0002] At present, with the development of the Internet of Things, more and more devices need to be intelligent. Smart devices generally have the requirements of low power consumption, miniaturization, and long standby time. Due to the simplicity of installation, outdoor devices do not have a good power supply, so things Internet-connected devices often have the demand for long-lasting disposable batteries. Due to the long working life, primary batteries with low self-discharge rates are generally selected, such as lithium-sub-batteries and lithium-manganese batteries, which can generally meet the requirements of 2-5 years. Power requirements for low-power devices. At present, it has a wide range of applications in smart meter reading, smart sensor nodes, a...

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Problems solved by technology

[0005] The beneficial effects of the present invention are: the present invention solves the problem of poor endurance of a battery through the supplementary power supply of solar energy; solves the problem of battery life of about 300 charging cycles in general batteries, and saves costs; , can achieve a smaller primary battery; solve the problem of unstable power supply caused by the traditional power supply switching process, because the power supply of the system is provided by composite capacitors, the system power supply does not have jumps, and the power supply is relatively stable to avoid power supply The switching process causes damage to the load equipment

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