12v to 5v Volt Converter, DROK DC 8-35V to 5V 3A 15W Voltage Regulator Board Power Supply Module, 9V 12V 24V Waterproof Car Volt Step Down Buck Converter

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You can make a 12V to 5V converter yourself. This isn’t advisable unless you know what you are doing. The alternative is to buy one. But, there are many different styles available. It’s important you choose a type that suits your needs. Silly question maybe...(excuse the non-electronics person...) but the tech document attached - AN97055 suggests that you ought to be able to approach 10ns switch on/off times... I was just wondering whether it was realistically possible to do this with this board - or whether you would need to play more with the pull up resistors? Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components. Arduino Uno with circled voltage regulator. [Photo by http://www.electricrcaircraftguy.com]The issue with using the voltage regulator is that the regulator is wasteful. Any extra voltage that needs to be dropped is converted to heat. The formula for efficiency is eff(reg)=Vout/Vin. A voltage regulator has some advantages too, one of them is stability, which means it can keep a very stable and accurate output voltage. Another advantage is its compact size. You’ll then notice four terminals in a row. The two on the left are input, the two on the right output with the negative terminals next to each other for safety. Simply hook your wires up to the supply and the device. This device doesn’t just handle 12 volts. In fact, it can accommodate anything between 8V and 40V, converting it effortlessly into a stable 5V 3amp supply.

What is the ground pin used for? In the schematic it appears to be not connected but not connecting them in my current setup gives strange results. Circuit 2 is a series Zener diode (or you could use a number of ordinary diodes in series to make up the voltage drop - say 12 x silicon diodes) A high-quality 12V to 5V converter will be able to stabilize the power transformation. A lower quality unit will not. Unfortunately, this means the power supply will fluctuate and these small power surges can be enough to damage your equipment. Hello, and thanks for the article! I am looking for an efficient converter for my led christmas lights. I have a solar panel to charge a 12V battery, but need 5V @ 175ma to power the leds. Do you think the “fine” would be the best choice, or do you have another suggestion? Thanks again! Of course, you may struggle to prove this is the case, leaving you without a device or a power supply converter.The above circuit diagram shows the circuit along with all the calculated values for our required operation. Working of 12V to 5V Circuit I’m using ‘Fine’ for a hobby solar-project, charging my phones etc. What I can’t figure out with my ‘Fine’ is this: My input is 6.5 V/350 mA, this will result in 4.85 V/240 mA after ‘Fine’ is done and having a charging phone connected, so it should draw some juice.. Now, maybe I’m just overseeing some basic physics here.. Do you think I do have a faulty ‘Fine’? What makes “Fine” better than others? It is a relatively new IC. The datasheet is from 2014 where, for comparison, the MP2307’s is from 2008. It also features a very low Rds(on) values (90mΩ/40mΩ), but most interestingly the MP2315 has AAM (Advanced Asynchronous Modulation) power-save mode for light load. These circuits are basic voltage regulators, the first one is simple voltage divider using resistors. Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.

Hi Dan, I am not sure I know how to help you. Perhaps test the resistance of the solenoid and compare it to the expected value using your data and the V=IR formula. thoughts on “ Efficient DC 12V to 5V conversion for low-power electronics, evaluation of six modules” I bought a couple of these to convert teensy 3.1's 3.3v data signal up to 5v to communicate more effectively with adafruit's neoPixels. One 12v battery, 100-ohm resistor ( higher value is recommended), 5.1V zener diode ( greater than 1W), some connecting wire, and soldering iron for permanent joints. This depends very much on WHY you are trying to drop the voltage, and whether the LOAD is changing. To steal the picture from @Matthijs,

Testing

This circuit is a voltage divider schematic. You can design it for the required ‘output voltage’ by using this formula: Arek and Roedi. These fine modules are fantastic. Been playing with a lot of solar stuff, also mppt … but the main problem is efficiency! The modules draw power and other stuff making most of them not useful. The fine does … what it’s name does … BUT … you can make it even better because there is an SS34 diode at the input for polarization protection. Well, why would you need that? It’s a schottky diode so you will loose about 0.3V of input voltage and it will also decrease efficiency! It took a bit of convincing before I believed I knew how to hook it up. Nothing could be easier: connect the two power supplies to the HV and LV inputs, connect the grounds, then connect your high level and low level signals and Voila!