These can be usually detected by their input voltage rating and they weight less because the transformer inside is much smaller. the only way to deliver "too much amperage" is to connect to a voltage source that is too high (ie 1000 volts). Why too much amperage wil not "ruin" the elctronic device. DC and REGULATED are always better than UNREGULATED. In case of resistive load, low voltage will lead to less current and so it will not get damaged. Join Yahoo Answers and get 100 points today. A better one, with protection will reduce its output voltage to keep the current constant, in which case, due to the reduced voltage, your device won't charge much faster than in the first case. so if you apply the design voltage (ie 120 vac) the device operates properly. No. The output of all adaptors is given in mA or A.

Now with Unlimited Eagle board sizes. Get your answers by asking now. In all cases resistance is measured in Ohms, voltage in volts, and current in amperes.

Your re-think about the wall socket is a good way to comprehend it. many devices are further protected by a fuse to limit amperage to a safe value. Available for Design & Build services. Android or ios? Nobody here knows who you are or what phone you have so why would you think anybody could answer your question? No, a power supply with "too much mA" cannot harm the device. is there a way to make my cds sound better? You need to know two things, and then you can calculate the third. N.J. governor won't rule out issuing another lockdown, Sean Connery: James Bond actor dies aged 90, Government confused Rousey's WWE arrest for a real one, After 50 years, a suspect emerges in cold murder case, Insult to injury: Couples owe $3.7B for canceled weddings, Study finds brain abnormalities in COVID-19 patients, Packers legend Brett Favre endorses President Trump, Pop star on eerie prescience of domestic abuse song.

The significant item in your description is the term (max). Why are my sisters led strip light remote controlling my leds in another room. Sure. But if it goes beyond 1000mA or 1Amp. No, a power supply with "too much mA" cannot harm the device. will this be safe?

Can my Hobart scale be saved from "zero range error"? The rating on little wall warts with only a transformer, rectifier bridge, and filter cap is loaded voltage. There is usually a little symbol on the pedal some are centre negative and some centre positive. If you give a higher Voltage than is specified it means that your device will draw too much current, overheat and probably burn out. Details to follow>>>? Thanks so much ahead of time for helping me out!! My preference is to use a supply rated at double the requirements. So it's not so much that I'm using a resistor to "drop the voltage" to within range. ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager: one thing to remember as you increase current and accidentally short it out it may melt your wires so gauge the wire size to match current. or only voltage can do that? That can be used to guard aginst an overload. That device will only draw as much amperage as it needs to perform whatever it’s doing. Could I have damaged the Amazon Echo speaker with maximum volume? What about with an underpowered 9v/700mA adapter?

Depends on what kind of load it is. Voltage vs. Amperage . Only voltage can do that. Your 1500w heater is pulling close to 14 amps of current (assuming you are on nominal 110Vac system). In other words we know the voltage, and we know the load the device places on its supply (its effective resistance). I seriously doubt you will have any battery overheating issues. aus oder wählen Sie 'Einstellungen verwalten', um weitere Informationen zu erhalten und eine Auswahl zu treffen. Current is the unknown, it is calculated from those two "knowns." voltage = current x resistance. The load determines how much current will flow, the supply just has a maximum value rating … So much sway does battery life hold over us that we buy specific phones that guarantee us a couple of days' usage. not sure what you mean exactly. the only way to deliver "too much amperage" is to connect to a voltage source that is too high (ie 1000 volts). Daten über Ihr Gerät und Ihre Internetverbindung, darunter Ihre IP-Adresse, Such- und Browsingaktivität bei Ihrer Nutzung der Websites und Apps von Verizon Media. Make sure it's 9v DC output at 300mA or above and check your polarity on the plug. that is dangerous to use on a lower DC power supply electronic device. or . Topic: Understanding Current - Too many amps? Designing & building electrical circuits for over 25 years. JavaScript is disabled. You CAN, however, hook a device up to an excessive voltage, which will cause a breakdown of the device. I suppose that more specifically what I am asking is what happens if there is too much mA, can that harm a device? My brother had a band and i did the same thing less b/s to carry also . If you're only loading it to 300mA the output voltage may read on a meter to be 11 or 12 volts.

This may be no issue if the wall wart is feeding a regulator on the device board but if the wall wart is feeding the circuitry directly there could be problems. Could I have damaged the Amazon Echo speaker with maximum volume? Does it hurt a device if you use a power supply with an output rating where the current (amperage) exceeds what is needed by your project? Is my cousin crazy or no? You are giving too much high current on a device that needs only to run on a rated 300mA. The battery charging circuits in phones are highly regulated.

you got it the higher milliamps will not hurt it its better to have more 1200ma =1.2 amps i would use a 1.5 amp or 1500ma supply to give your self a little buffer the higher the amps the better .And for the idiots that say oh you should use the manufactures power supply are full of bs i have been doing electronis for 40 years and have a license to do so . If so, in what way? Also be aware of the output voltage some are AC and some are. Reading the manual it says that the device requires 5V --- 300-330mA. If a unit rated for 9V at X load shows higher, up to say 14V, it's unregulated. Author of "Arduino for Teens". As Voltage = Current x Resistance the current depends on body resistance. any device draws the amps it needs based on the available voltage (Ohm's law). Similarly, a car battery can provide hundreds of amps for short periods (for starting your car). Voltage is a measure of the pressure that allows electrons to flow, while amperage is a measure of the volume of electrons. These are pretty uncommon now, but you should always measure the output voltage with no load when republishing an old supply, before hooking it up to something that matters.

Dazu gehört der Widerspruch gegen die Verarbeitung Ihrer Daten durch Partner für deren berechtigte Interessen. like to keep my phone in my back pocket first wallet case? In this case, that is 510 ohms. Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website. You can sign in to vote the answer. Does the wall outlet ram 15 or 20 amps through the bulb (which would quickly burn it out)? For example, if I supply the ATmega328p from a regulator that is rated at 150mA it would be difficult to overload since the MCU is rated for 200mA (though I could still damage individual pins). Wir und unsere Partner nutzen Cookies und ähnliche Technik, um Daten auf Ihrem Gerät zu speichern und/oder darauf zuzugreifen, für folgende Zwecke: um personalisierte Werbung und Inhalte zu zeigen, zur Messung von Anzeigen und Inhalten, um mehr über die Zielgruppe zu erfahren sowie für die Entwicklung von Produkten. Devices draw (demand) what current they need. Instead, I should think of it like this - take what I know about the "load" (LED specs) and my power source (12V) and use them to calculate the resistor that fits the circuit. You are giving too much high current on a device that needs only to run on a rated 300mA. Humans have died at as low as 42 volts. Well, power supplies in all common devices operate in "constant voltage" fashion. Ah, I think I see your point. Check what it says on the adaptor. I have an AC adapter that is rated at 9v/1300 mA. A subwoofer non magnetically shielded may be interfering with any other device like a turntable, cassette, reel to reel ? Next you need to look at how much power the resistor needs to dissipate - in this case, power = (current * voltage)  for this example, that would be 10v * 0.020A = 0.2w so you could use either a 1/4 or 1/2 watt resistor (my choice being which I have in my junk drawer or which is cheaper to buy 100 of. Still have questions? Now I have spare cable that generates 5 - 5.5v --- 1000mA (max), would I risk damaging the electronics or its internal battery by using this cable? Go back to the good old water analogy - If I have a ten foot high water drum tank the water comes out, [ I will NOT respond to personal messages, I WILL delete them, use the forum please ]. Try it, but repeatedly check for signs of the phone's battery overheating.

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will it be okay as long as the voltage meets and mA supplies? Time is also a factor. The supply will provide up to 1000ma. Current, voltage, and resistance are related by Ohm's law, which can be written as, "resistance" in this case means the load your device places on the source.

Can too much Amperage "burn out" an electronic device? A good power supply should current limit a little past its rating (e.g. aka an App? I'm looking to buy a new phone. I have successfully used 6V 1500mA bricks with 18V 500mA devices. :). Anyway, that current limit can be useful for making things more bullet proof (should that be desired). I just prefer not to run things close to the limits - I find I have less failures that way.

110 to 130%) without being damaged. Can you steam play games on your pc off your xbox one without your xbox one being on? Voltage is the most important in power supply on an electronic device. Yahoo ist Teil von Verizon Media. Can I avoid the fee if I tell them or they overcharge anyway?

Reading the manual it says that the device requires 5V --- 300-330mA.

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