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

Product Information

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: 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: Lift the diode of its pad at the connection to the output, and insert your current sense resistor in series with the diode. Then put your transistor over either the current resistor, or over the diode and current resistor, as described before.

have a look at the schematic here: https://www.sunrom.com/media/content/1118/MT3608-schematic.gif or here: MANY other softwares out there for making one's own PCB's (which i would NEVER charge anyone to help make their own PCB's, after all, its just the board designs of simple modules so if one ever wants a hand in doing so, lemmi know !!) The MT3608 is a constant frequency, 6-pin SOT23 current mode step-up converter intended for small, low power applications. The MT3608 switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors 2mm or less in height. Internal soft-start results in small inrush current and extends battery life. I know what you're asking, basically are there any equivalents or alternatives to the inductor choices that fall within the criteria of the datasheet and where i do humbly think, personally, that this info will further benefit ANYONE/as many as possible when they also read this answer, so not only for the original question post's author, but i surely hope everyone too, here goes:

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The module is using very less amount of components and the main component of the module is MT3608 IC. MT3608 is a highly efficient voltage booster IC with many built in features like over heat protection, low quiescent current, soft start function, low external components, overheat shutdown etc. Other components used in this module are two ceramic capacitors, one variable resistor, one resistor and one schottky diod and a 22uH inductor which is an important part of all voltage booster circuits. I meassured the output voltage and it is stable when the RPi is off as well as when it is on (4.9v ~ 5.1v). The boot up sequence tipically consumes about 150-300mA on a Raspberry Pi B+ I use to prototype. When the same wall charger is connected directly to the microUSB port on the RPi, everything works flawlessly. 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. Před prvním použitím je tedy nutné použít vstupní napětí 2Va nastavit požadované výstupní napětí. Potom lze na vstup připojit zamýšlené nižší vstupní napětí. Specifikace:

Pin configuration of the Step up module is given in the table below. The module has 4 pins, 2 of which are for voltage input and 2 are for regulated output voltage. The module also consists of a potentiometer which can be used to adjust the output voltage levels. When I power my RPi, it boots but then it enters on a boot-loop which is reported to be caused by low voltage (see: https://elinux.org/R-Pi_Troubleshooting#Raspberry_Pi_shuts_down_.28or_restarts.29_soon_after_booting_up). how did you make that 3D Render - did you do it yourself with a software/s like the Eagle software with Eagle-Up plugin and 2 other softwares to show us our own Schematic/PCB designs in glorious 3D as your rendering is. 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.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 :

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. The circuit above depicts how the connections are made for the operation of the MT3608 step-up module. The amount of busted modules ive got over the years ive started to buy the SMD individual parts so i can swap them out as the most important part of the module is the PCB itself. And much harder to make for folks just getting into electronics and electrical engineering :)

Potřebujete napájet Arduino z baterie? Tento měnič je ideální volbou. Dokáže dokonce i z dvou tužkovýchbateriívytvořit 5V pro Váš projekt. 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. Not only that, it would also be a most-excellent thing to also see a basic "schematic" of this module using the same sorta software, like the free to use CADsoft Eagle, or when it used to be, i cant remember now as im old, lol

Because you have moved the current resistor _before_ the voltage regulation network, once the regulator is turned on, the output voltage will be exactly where you want it. Explicitly said: the current regulation network will see a lowered voltage because of your added resistor and will increase the output to compensate for the voltage drop caused by it. That’s its job. 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) Fotografie výrobků jsou pouze ilustracemi na ukázku a někdy se mohou lišit od skutečného vzhledu předmětu. Avšak toto nemění jejích základní vlastnosti. BUT the most impressive is YOUR 3D RENDERING of this module - PLEASE Please please could i kindly beg you; 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.It would have been nice to have a picture of the schematic embedded within the article, that makes discussing it much easier. In theory, it should provide 5v (output of the MT3608) when powered either from USB wall charger or from 18650 battery (through the TP4056). The Mosfet will do the switching between mains and battery. 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.