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Posted 20 hours ago

BOJACK IRLB8721 MOSFET Transistors IRLB8721PBF 30 V 62 A N-Channel Power MOSFET TO-220 (Pack of 10 Pcs)

£9.9£99Clearance
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ZTS2023
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About this deal

When it comes to analog strips, there are analog RGB LED strips and monocolor LED strips. Analog Monocolor LED Strips There are libraries that make it really easy to control the strip and make all sorts of crazy effects.

I have looked this up extensively and tried it on my breadboards but with no success. Only lead I have is pointing to a fairchild mosfet which I am not able to get to for weeks. Analog LED strips have their LEDs wired in parallel. The whole strip works as a giant RGB LED. So, you can light up your whole strip in many different colors, but you can’t control LEDs individually. This means your strip can only be one color at a time. This type of LED strips are cheaper than the digital ones and easier to use. By calculating the RC time constant and thus the rise/fall time of gate voltage - during rise and fall the The non waterproof strips are lighter, so it is easier if you want to hang them on the bottom of something with tape. The image below shows an example of a non waterproof LED strip.Monocolor LED strips only produce one color. These strips are really easy to wire, they just have two terminals: GND and VCC as shown in the strip below. Then, you can control the strip with PWM as you would do to control a single RGB LED. To find out how to control an RGB LED with the Arduino you can read: How do RGB LEDs work? I have tried this with a IRLB8721 mosfet, but realized it needs a higher voltage than what the GPIO can provide. The most suitable one I could find then was the IRF3205, seeing that it is used more frequently with Raspberry PI/Arduino applications, but unfortunately this is also not working. It seems like my GPIO voltage is still too low. MOSFET spec sheets can look pretty complicated, but for many applications we just need to pay attention to a few key parameters that are explained here.

One meter of your analog LED strip can draw approximately 1A per LED pin when all red green and blue LEDs are at full brightness (which produces white).

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If it is spec’d at 10V only, the part is not logic compatible and needs something close to 10V to drive it into saturation. This means a MOSFET driver, transistor or some other means is required to drive the gate with something close to 10V. You just apply power to the strip, and the LEDs light up. The following figure shows an example of a monocolor LED strip. This strip only produces white color.

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