Power net portal is a special schematic object used to define a power or ground net. Power ports allow you to conveniently indicate a power net at any location in the design. Power nets of the same designator automatically connect throughout your design #portal #power
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
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To switch 24V at 3A, you'll likely want to use a MOSFET due to its high efficiency and fast switching capabilities. Here are a few factors to consider when selecting the right MOSFET:
Voltage Rating: Make sure the MOSFET can handle at least 24V. It's a good practice to have a higher voltage rating to ensure reliability, so consider at least 30V or 40V.
Current Rating: The MOSFET should be able to handle currents above 3A. It's recommended to have some margin, maybe around 5A or higher.
Gate Threshold Voltage: Ensure that the MOSFET's Vgs(th) is compatible with your control signal. For typical microcontroller logic levels (e.g., 5V or 3.3V), a logic level MOSFET is needed.
On-Resistance (Rds(on)): A lower Rds(on) will result in less power loss and heat generation.
Package Type: Choose a package that fits your application, considering size and heat dissipation requirements.
A common choice could be an N-channel MOSFET such as the IRLZ44N, which supports these parameters:
Voltage Rating: 55V
Current Rating: 47A
Gate Threshold Voltage: Suitable for logic level
Rds(on): Approximately 28 mΩ
You'll want to make sure that your PCB design can handle the heat dissipation. If you need additional help with integrating the MOSFET into your design, feel free to ask!
4mo
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Passive Components
Resistor Power Rating
Beta
Checks that the power traveling across a given resistor is under its rating with 50% headroom.