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Solar Street Light Controller

I. Introduction

Solar controller is used in solar photovoltaic system, it is fully called solar charge/discharge controller, coordinates the work of solar panels, batteries, loads, it is a very important component in the photovoltaic system. It is a very important component in the photovoltaic system, which makes the whole solar photovoltaic system operate efficiently and safely. It has: overload protection, short circuit protection, reverse discharge protection, reverse polarity protection, lightning protection, undervoltage protection, overcharge protection.

II. Characteristics

1、12V/24V automatic identification

2、Use power MOSFET as electronic switch.

3、Wide applicability, automatic identification of day/night.

4, LED digital function menu setting and display is concise and easy to use.

5, comprehensive waterproof function design, the controller is suitable for humidity, dust and other harsh environments.

6, the controller has over-temperature, over-charging, over-discharging, overload, short-circuit automatic protection function.

III. Design Principles

Solar street light is the sun's light as the main energy source, daytime can be independent of charging, night use. No need to lay any complex, expensive circuit piping, etc., but also can adjust the layout of the lamps and lanterns, safe, efficient and energy-saving and no other pollution, charging and use of the switching process using light-controlled automatic control, no need for manual operation, stable and reliable, saving electricity and power resources, maintenance-free, the practicality of the solar street lamp has been fully recognized, this paper introduces a single-chip microcomputer based on the solar energy This paper introduces the design of solar street light controller based on microcontroller, which can realize automatic identification of 12V and 24V batteries, scientific management of batteries, indication of over-voltage, under-voltage and other operating conditions of batteries, and protection against over-current and short-circuit of loads.

IV. System architecture

V. Control modules