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2 PCS DC-DC MT3608 Step-up Power Supply Module Adjustable Boost Converter Input 2V-24V to 5V-28V 2A

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Here we would like to introduce another component: the Fuse. In this specific case our converter needs protection from 2 Amps. So we will take a 2 Amp fuse and wire it according to the image below. This will provide the necessary protection for our IC. Here is the TP4056 Datasheet. Here is the MT3608 Datasheet. We are not going in to details of TP4056 (which is a charger circuit) and MT3608 (which is a DC-DC boost converter). The datasheets will give you a fair idea that the end output voltage will be regulated and linear. MT3608 module can be used in application where voltage requirements are under 28V and current requirements are under 2A. Therefore this module can be used mostly in portable equipments like power banks, portable power supplies etc. Moreover due to its low cost it can also be used in educational projects. So as per your "Inductor Selection" Snippet you used from the datasheet (AeroSemi?) for the Step down converter MT3608, which tells us the important criteria we need to search with, being an inductor of: Using MT3608 module is very simple by looking at the pinout described in the image above you can connect an input voltage from 2V to 24V DC. The input source can be a battery or solar cell or any other source available. After connecting the input voltage take a digital multimeter and select above 28V from the digital multimeter voltage selection panel and connect the digital multimeter from the output voltage points of the module then adjust the variable resistor until the multimeter shows your desired output voltage.

MT3608 step up booster converter module is a small sized highly efficient and low cost module is built for converting or boosting the voltage as low as 2V to max 28V DC with the maximum output current of 2 ampere. The output voltage can be adjusted with the variable resistor used in the module. still use a resistor between the output terminal and the load, but instead of connecting the emitter of the transistor to the output, connect it at the terminal between the coil and the diode. This has the effect that the voltage drop of the diode also helps in getting tot the 0.6V required to turn on the transistor. Depending on load, the forward voltage of the diode is 0.2 V and higher ( https://www.onsemi.com/pub/Collateral/SS39-D.PDF, figure 3)

Here is an example that includes everything mentioned above. We will summarize everything with the wiring steps: You are using IRFP9240. This is not suitable MOSFET for this task. This MOSFET requires higher Vgs than you are providing. You are going to have Vgs around 3.6-4.2V. IRFP9240 requires around 10V to fully open (or at least 5V to be usably open).

Set the multimeter to read the voltage and connect the output of the converter to it. Now you can already see the voltage on the output. For any electronics project, we require a power source. In our previous article How to Run an ESP32 on Battery, we have discussed about the challenges with direct powering with battery. As most of the projects require 3.3V DC to 5V DC, we need some system which can be charged with a mobile charger and the output voltage can be adjusted for different configurations of the power supply plans. Building a DIY power bank with TP4056 and MT3608 is cheap and easy (the matter is about joining the modules). The components you need to build this DIY power bank are : The circuit may need an extra capacitor between the base of the transistor to earth to counter any high frequencies that originate from the switching. It all depends on the delay of the enable pin.Nice touch, a limitation: as mentioned, it introduces a voltage drop of 0.65 V (or so). This voltage drop is current dependent, so you can’t really regulate this away easily using the variable resistor. So i just went to Mouser UK (International Company & this is being used just as an example of how to search for one's own self, use whatever you feel comfy with) So search for the exact or close-enough characteristics of the inductor we need for these projects and I've found 14 results in the list after narrowing it down but only using what info is specifically in that Datasheet snippet above, here's 2 pictures from screenshots from me own desktop to further illustrate how to better search for exactly what you need and asked for, or be in the ball-park for better choice options than without these sort of searching: This Kit includes a ELL6UH220M transducer choke coil and a MT3608 regulator which will alow you to create your own DC-DC converter/regulator.

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