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Old 28 May 2013, 09:23   #55
Steve T
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Join Date: May 2013
Location: UK
Age: 38
Posts: 349
Originally Posted by Mrs Beanbag View Post
A500 power brick is maybe just a simple mains frequency transformer, meaning it has to be very big and heavy to carry the power. Newer one I guess is a high-frequency switching design, which requires more complex electronics but a smaller and lighter transformer.
The newer, smaller one is also way more efficient - drawing about half the power from the mains to generate those DC currents.
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