Canadian NDT19V-3C-DC Ac Adapter, Genuine JBL NDT19V-3C-DC Power Adapter Charger CAD$40.90

Question about NDT19V-3C-DC laptop ac Adapter ( From internet ):

What is an AC adapter?

AS the name suggests “ ADAPTOR” means 2 things cannot be connected directly.

In this case AC power circuits and DC power circuits can not be connected to without converter circuit.

If those circuit connected to directly then there is chance of electric blast and that makes its dagerouse.

AC Adaptors are basically converters. AC adaptors are used to convert AC power into desirable DC power for the DC circuits. That means AC Adaptor connects 2 unequal things and makes circuit to work in its intended way.

Example of AC adaptors are Mobile charger , Laptop Chargers, PC Power Supply etc.

How do I choose a power adapter?

Do you mean a spare power supply “brick” because the one that came with the laptop has failed and the manufacturer’s replacement is pricey or impossible to source? If so:

You need

• The same output voltage (to the laptop)
• Compatibility with your local mains voltage and frequency. Many but not all are universal 110–240V 50–60Hz, which have the advantage of working world-wide.
• The same or greater current capacity. You can use (say) a 5A supply with a laptop rated at 3A but not vice versa. A higher current adapter is more likely to have a wrong connector on the laptop wire.
• The same connector on the end of the wire that plugs into the laptop

Many third party power bricks have multiple tips that can be attached to the laptop wire. Make absolutely certain you get the polarity right or you may destroy both the laptop and the power supply. If it’s got a switch to select the output voltage also make sure you set this right.

How do i choose NDT19V-3C-DC AC adapter?

• Choose the same adapter output volt and current.
• Choose the same adapter connector size.
• Choose the same adapter brand or famous brand.
• Choose the adapter that has various certification marks on it.
• Offer correct machine model when you add it to cart.

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