
This circuit uses an Arduino UNO to control two PC fans via a 4 Channel MOSFET Driver. The fans are powered through a 2.1mm Barrel Jack with Terminal Block, and the Arduino sends control signals to the MOSFET driver to regulate the fans' operation.

The MOSFET 4 Kanal (IRF9540N), manufactured by Basti, is a 4-channel Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) module. It is designed for switching and amplifying electronic signals, enabling efficient control of multiple circuits with a single device. This module is particularly useful in applications requiring high-speed switching, low power loss, and precise control.

This circuit uses an Arduino UNO to control two PC fans via a 4 Channel MOSFET Driver. The fans are powered through a 2.1mm Barrel Jack with Terminal Block, and the Arduino sends control signals to the MOSFET driver to regulate the fans' operation.

This circuit uses an LM393 comparator to drive an IRFZ44N MOSFET based on the comparison between two input signals from a pixhawk 2.4.8 flight controller. The MOSFET switches a solenoid, with a diode for back EMF protection, and the system is powered by a Lipo battery with voltage regulation provided by a step-up boost converter and a step-down voltage regulator to ensure stable operation. A resistor is connected to the gate of the MOSFET for proper biasing.

This circuit consists of a 5V battery powering a 4-channel relay module, which controls four LEDs (red, yellow, green, and blue) through individual resistors. Each relay channel is activated by a corresponding SPST toggle switch, allowing manual control of the LEDs.

This circuit features an ESP32 microcontroller interfaced with multiple flush switches and two 4-channel relay modules to control various loads. It also includes a SIM900A module for GSM communication and an AC to DC converter for power management. The ESP32 handles input from the switches and controls the relays, while the SIM900A provides remote communication capabilities.
| Parameter | Value |
|---|---|
| Manufacturer | Basti |
| Part ID | IRF9540N |
| Number of Channels | 4 |
| MOSFET Type | P-Channel |
| Maximum Drain-Source Voltage (VDS) | -100V |
| Maximum Gate-Source Voltage (VGS) | ±20V |
| Continuous Drain Current (ID) | -23A |
| Power Dissipation | 200W |
| RDS(on) (On Resistance) | 0.117Ω (typical) |
| Operating Temperature | -55°C to +175°C |
| Package Type | TO-220 |
Each channel of the MOSFET 4 Kanal module has three pins: Gate (G), Drain (D), and Source (S). Below is the pin configuration for a single channel:
| Pin Name | Description |
|---|---|
| Gate (G) | Controls the MOSFET's switching state. |
| Drain (D) | Connects to the load or circuit being controlled. |
| Source (S) | Connects to the ground or negative terminal. |
The module has four such channels, allowing independent control of four separate circuits.
Below is an example of controlling a DC motor using one channel of the MOSFET 4 Kanal module and an Arduino UNO.
// Define the MOSFET Gate pin connected to Arduino
const int mosfetGatePin = 9; // Pin 9 controls the MOSFET Gate
void setup() {
pinMode(mosfetGatePin, OUTPUT); // Set the Gate pin as an output
}
void loop() {
digitalWrite(mosfetGatePin, HIGH); // Turn the MOSFET on (motor runs)
delay(1000); // Wait for 1 second
digitalWrite(mosfetGatePin, LOW); // Turn the MOSFET off (motor stops)
delay(1000); // Wait for 1 second
}
Note: Ensure the Gate voltage is within the Arduino's output range (0V to 5V) and use a level shifter if necessary for higher voltages.
MOSFET Overheating
MOSFET Not Switching
Load Not Operating
Voltage Spikes Damaging the MOSFET
Q1: Can I use the MOSFET 4 Kanal module with a 3.3V microcontroller?
A1: Yes, but ensure the Gate voltage is sufficient to fully turn on the MOSFET. Use a level shifter if needed.
Q2: What is the maximum current I can draw per channel?
A2: The maximum continuous current per channel is -23A, but ensure proper cooling to avoid overheating.
Q3: Can I control all four channels independently?
A3: Yes, each channel has its own Gate, Drain, and Source pins for independent control.
Q4: Is the module suitable for AC loads?
A4: No, the MOSFET 4 Kanal module is designed for DC loads only.