DC-DC Converter

[getadirtbike]

I was reading through the EV Basics Threads and I found this one:

http://endless-sphere.com/forums/viewtopic.php?f=16&t=2264

I just have one simple question.

Are we talking about the everyday laptop battery charger/AC power adapter??

I have 3 laptops and can't find anything on them about "switching power supply" written on the adapters.

J

 

[fechter]

I was reading through the EV Basics Threads and I found this one:

http://endless-sphere.com/forums/viewtopic.php?f=16&t=2264

I just have one simple question.

Are we talking about the everyday laptop battery charger/AC power adapter??

I have 3 laptops and can't find anything on them about "switching power supply" written on the adapters.

J

Yep. Virtually all laptop supplies are switching mode.

Look at the input specification on the power adapter. If it states 100v -240v or similarly wide input range, then it must be a switching supply. An non-switching (linear) supply will have a very narrow input range. Linear supplies also have large, heavy iron transformers, so weight is a clue.

 

[getadirtbike]

Perfect,

Thankyou