What is DC 4.5 V mean?
It stands for Direct Current. There is AC or Alternating Current which is what you have in the home. The receptacle is for a Wallwart or external power supply that converts 120 Volts AC to 4.5 Volt DC. Hope this answers your question. John.
Can I use a 5V adapter for 4.5 V?
It’ll work fine.
Are DC power supplies interchangeable?
– Yes, they are likely interchangeable even though voltage is not the same. This is because the voltage difference is within specs, and I am GUESSING you could go even higher or lower in voltage.
What is DC 5V power supply?
5V power supplies (or 5VDC power supplies) are one of the most common power supplies in use today. In general, a 5VDC output is obtained from a 50VAC or 240VAC input using a combination of transformers, diodes and transistors.
Can I use a 12V power supply on a 5V?
Yes, it is possible to get 5V@10A using your existing 12V@6A Power Supply. The only thing needed is a ‘good’ Step-Down Converter (aka: Buck-Converter). Because, your existing supply can deliver up to 72W of power, with the minimum efficiency of around 70% of Buck converter, you can get 50W at the output.
How do I know if a plug is AC or DC?
One way to determine if you have an AC-DC power supply or a DC-DC model is to look at the device itself. Often, the input and output information will appear somewhere on the surface. If the input is AC, you have an AC-DC power supply, and you have a DC-DC model if the input and output both are DC.
Can I use a 6V adapter to power a 5V device?
No. To regulate 6V down to 5V you need a switching regulator or Buck converter as it is known. You do not have enough excess voltage for a linear regulator unless you use a low dropout type.
Can I use a 5V 2a charger with a 5V 0.5 a device?
Yes, it is absolutely safe to charge a device with a charger that has more current capacity than needed. Since the voltage is held constant (5V), the only factor that determines current draw is the load (another term for resistance) the device places on the charger.
What happens if you use a higher voltage power supply?
An AC adapter supplying electricity at a higher voltage than required will cause the connected device to run hotter. Sending power at a higher voltage will also shorten the lifespan of the device and may fry its internal circuits. Using an AC adapter with a different current rating can be an issue.
Can I use A 12V power supply on A 5V?
Is 5V fast charging?
Typical device charging comprises of 5 volts and 2.4 amperages, or 5V/2.4A. Fast charging, by contrast, pushes the voltage up by intervals of 5V, 9V, 12V, or more, with amperage increasing to 3A and beyond.
Can I use a 9V power supply on a 5V device?
In general, connecting a 9V supply to 5V device could damage it immediately, or in long term, but it is impossible to say without seeing the schematics of the device how much excess voltage it can handle.
Why DC is not used in homes?
Direct current is not used at home because for the same value of the voltage, DC is more lethal than AC since direct current does not go through zero. Electrolytic corrosion is more an issue with direct current.
What voltage is DC?
DC stands for ‘direct current’ which means the current only flows in one direction. Batteries and electronic devices like TVs, computers and DVD players use DC electricity – once an AC current enters a device, it’s converted to DC. A typical battery supplies around 1.5 volts of DC.
Can I use a 12V DC power supply on a 5V?
What happens if I use the wrong voltage adapter?
The device could power on, and just draw more current from the adapter than it’s designed for. This could cause the adapter to overheat or fail. Or, the device may power on, but the adapter may not be able to keep up, causing the voltage to drop (see voltage too low above).
What happens if amps are too high?
As long as the correct voltage is used, a device will draw only the amperage it needs, meaning there will not be “too many amps”. If an incorrect voltage is used — say a higher voltage than the device is rated to accept — then yes, too many amps may be drawn and the device can be damaged.
Can I use a 12V DC power supply on a 9V DC?
If you have a 12V adapter, you might wonder whether you can use it to power your 9V guitar pedals. In most cases, you cannot use a 12V adapter to power a 9V guitar pedal. Using a 12V adapter on a pedal designed to only handle 9V can completely destroy it.
Can I charge A 5V device with A 12V charger?
Do phones charge at 5V or 9V?
Most phones and other devices are capable of handling 5V/2.4A. For fast charging, you’re looking at something that bumps the voltage up 5V, 9V, 12V, and beyond, or increases amperage to 3A and above. Keep in mind, your phone will only take in as much power as its charging circuit is designed for.
What happens if you plug a 5V into a 9V?
Is DC safer than AC?
Alternating current (A.C) is five times more dangerous than Direct current (D.C). The frequency of the alternating current is the main reason for this severe effect on the human body. The frequency of 60 cycles is in an extremely harmful range. At this frequency, even a small voltage of 25 volts can kill a person.
What happens if you connect AC to DC?
If we connect an AC supply to the DC devices and equipment: The positive and negative voltage will destroy (this is not always the case) some of electronic components such as transistors and electrolytic capacitors. In case of higher AC voltage, they may burn with blast and catch fire.
What is DC power used for?
DC power is widely used in low voltage applications such as charging batteries, automotive applications, aircraft applications and other low voltage, low current applications. All solar panels nowadays produce DC power.
Can I use 12V 2A for 5V device?
The device will very likely burn out. In addition, depending on what the device is and the capacity of the 12V supply, connecting a 12V supply to a device rated 5V max could lead to a hazard – fire, explosion, etc.