Abstract
To study an emergency power based on solar battery charging. Based on the electric-generation principle of solar panel, solar energy is changed into electrical energy. Through voltage conversion circuit and filter circuit, electrical energy is stored in the energy storage battery. The emergency power realizes the conversion from solar energy to electrical energy. The battery control unit has the function of PWM (Pulse-Width Modulation) charging, overcharging protection, over-discharging protection and over-current protection. It also realizes the fast and safe charging of energy storage battery. The emergency power could provide both 12V AC power for emergency equipment such as miniature PSA oxygen concentrator and 5V USB for electronic equipment (mobile phone, GPS device, rechargeable light, etc.).
Highlights
The emergency power based on solar battery charging is mainly composed of solar panel, battery control unit, and energy storage battery
The solar panel converts the solar energy into electrical energy with suitable charging voltage after DC-DC conversion circuit and filter circuit, in the meantime, the battery control unit realizes the over-charging protection and over-current protection of power supply circuit by monitoring terminal voltage and load current of the energy storage battery, which makes it efficiently and safely to store electrical energy in the energy storage battery so as to provide power supply at any time[7]
Solar panel According to the photovoltaic effect, in the emergency power solar panel is the most critical part that directly converts solar energy into electrical energy
Summary
The emergency power based on solar battery charging (hereafter referred to as emergency power) is mainly composed of solar panel, battery control unit, and energy storage battery. The solar panel converts the solar energy into electrical energy with suitable charging voltage after DC-DC conversion circuit and filter circuit, in the meantime, the battery control unit realizes the over-charging protection and over-current protection of power supply circuit by monitoring terminal voltage and load current of the energy storage battery, which makes it efficiently and safely to store electrical energy in the energy storage battery so as to provide power supply at any time[7].
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