Design with Solar Charge Controller (SCC) in Cirkit DesignerThe Solar Charge Controller (SCC), manufactured by Solar Pnael, is a critical device in solar power systems. It regulates the voltage and current coming from a solar panel to a battery, ensuring optimal charging and protecting the battery from overcharging or deep discharge. By maintaining the health of the battery, the SCC extends its lifespan and improves the overall efficiency of the solar power system.
This circuit is a solar-powered battery charging system with an MPPT (Maximum Power Point Tracking) charge controller. The solar panel provides power to the MPPT SCC, which optimizes the charging of a 12V battery. A step-up boost converter is used to regulate the output voltage from the battery.
Open Project in Cirkit Designer
This circuit consists of two solar panels connected in series to an MPPT solar charge controller, which regulates the charging of a 12V 200Ah battery. A multimeter is integrated to monitor the voltage and current from the solar panels to the charge controller.
Open Project in Cirkit Designer
This circuit is a solar power management system that includes a solar panel, a solar charge controller, a 12V battery, and various voltage regulators. The system charges the battery using solar energy and provides regulated power to an Arduino UNO and other connected loads, ensuring stable operation and protection through circuit breakers and an ATS (Automatic Transfer Switch).
Open Project in Cirkit Designer
This circuit is designed for a renewable energy system that integrates solar and wind power generation. It includes a solar and wind charge controller connected to a solar panel and a lantern vertical wind turbine for energy harvesting, a 12V 200Ah battery for energy storage, and a dump load for excess energy dissipation. The system also features a 12V inverter to convert stored DC power to AC, powering an outlet and a wireless charger for end-use applications.
Open Project in Cirkit DesignerThe Solar Charge Controller is available in various models, but the following specifications are typical for a standard SCC:
| Parameter | Value |
|---|---|
| Input Voltage Range | 12V/24V auto-detect (up to 50V) |
| Maximum Input Current | 20A, 30A, or 40A (model-dependent) |
| Output Voltage Range | 12V/24V (auto-adjustable) |
| Maximum Output Current | Same as input current rating |
| Efficiency | ≥ 98% |
| Battery Type Supported | Lead-acid, AGM, Gel, Lithium-ion |
| Operating Temperature | -20°C to +60°C |
| Protection Features | Overcharge, over-discharge, |
| short-circuit, reverse polarity |
The SCC typically has the following terminal connections:
| Pin/Terminal | Label | Description |
|---|---|---|
| 1 | Solar Panel (+) | Positive terminal for solar panel input |
| 2 | Solar Panel (-) | Negative terminal for solar panel input |
| 3 | Battery (+) | Positive terminal for battery connection |
| 4 | Battery (-) | Negative terminal for battery connection |
| 5 | Load (+) | Positive terminal for DC load connection |
| 6 | Load (-) | Negative terminal for DC load connection |
The SCC can be used with an Arduino UNO to monitor battery voltage or solar panel performance. Below is an example code snippet for reading battery voltage using the SCC's battery terminals and an analog input pin on the Arduino:
// Define the analog pin connected to the SCC's battery (+) terminal
const int batteryPin = A0;
void setup() {
Serial.begin(9600); // Initialize serial communication at 9600 baud
}
void loop() {
int sensorValue = analogRead(batteryPin); // Read the analog voltage
float batteryVoltage = sensorValue * (5.0 / 1023.0) * 11;
// Convert the analog reading to voltage. The 11 factor assumes a
// voltage divider with a 10:1 ratio for higher voltage measurement.
Serial.print("Battery Voltage: ");
Serial.print(batteryVoltage);
Serial.println(" V");
delay(1000); // Wait for 1 second before the next reading
}
Note: Use a voltage divider circuit to step down the battery voltage to a safe range (0-5V) for the Arduino's analog input pins.
SCC Does Not Power On
Battery Overheats
Load Does Not Receive Power
Solar Panel Not Charging the Battery
Q1: Can I use the SCC with a 48V system?
A1: No, this SCC is designed for 12V/24V systems only. For 48V systems, use a compatible SCC model.
Q2: How do I know if the SCC is working properly?
A2: Most SCCs have LED indicators or an LCD screen to display system status, including charging, battery level, and errors.
Q3: Can I connect multiple solar panels to the SCC?
A3: Yes, but ensure the combined voltage and current of the panels do not exceed the SCC's input ratings.
Q4: Is the SCC waterproof?
A4: Most SCCs are not waterproof. Install the SCC in a dry, well-ventilated location.
By following this documentation, you can effectively integrate the Solar Charge Controller into your solar power system and ensure reliable operation.