Increasing the speed of DC motors in a toy grade drone typically requires modifying the power supply to the motors. However, it's important to note that modifying toy grade drones can be challenging and may not always yield the desired results. Here are a few steps to consider if you want to attempt increasing the motor speed:
Determine motor specifications: Identify the specifications of the DC motors used in your drone, such as the rated voltage and current. This information will help you understand the motor's capabilities and limitations.
Power supply modification: The speed of DC motors is typically controlled by the voltage supplied to them. Increasing the voltage can increase the speed. However, this should be done with caution, as exceeding the motor's rated voltage can damage it. If the drone's motherboard or controller provides adjustable voltage outputs, you may be able to increase the voltage within safe limits. Otherwise, you might need to modify the power supply circuitry, which can be complex and may require electronic expertise.
Evaluate motor compatibility: Increasing the voltage to the motors may cause them to draw more current. Ensure that the motors, as well as the drone's electronic components and battery, can handle the increased current without overheating or being damaged. Modifying the power supply without considering these factors can lead to undesirable consequences.
Propeller selection: Changing the propellers to ones with a higher pitch or different design may also affect the speed and performance of the drone. However, it's important to ensure that the motors can handle the increased load from the new propellers.
Test and monitor: After making any modifications, thoroughly test the drone in a controlled environment, paying close attention to the motor and electronic component temperatures. Excessive heat is an indication of potential problems, and you should take appropriate action to prevent damage.
Remember that modifying a toy grade drone may void any warranties and can be risky. It is recommended to have a good understanding of electronics and take necessary safety precautions while attempting any modifications. If you are unsure or unfamiliar with the process, it is best to consult with an expert or consider purchasing a higher-performance drone that meets your speed requirements.