This is supposed to be an AC to DC adapter. The AC first enters the full bridge rectifier and the resistor and then it reaches the transformer. Since the output is a positive sinusoidal wave...it's just not DC. The insulation from the mains is also bad. How did it get CE approved? How can this stuff be marketed??
@DanielTork The resistor is for the LED. The current coming out goes in one single direction, so it is DC. However did you come to the conclusion the transformer isn't isolating properly? And CE is a self assigned label that only ever gets taken away
@dirac16 A fraction of a fraction of a micro second before the left transistor switches on, what's the voltage across the capacitor, approximately/likely? And a fraction of a fraction of a microsecond after?
@Asmyldof That's more of a DC with a AC component. I don't think it's actually practical for devices. At least others, as the one it was design for can accept this. I thought that standard rules ask for a smoothing cap.
I was also expecting an optcoupler. It was made for charging the batteries of a toy car
@TonyStewart I can't say I've tested it, but the simplicity made me question it.
@DanielTork DC means the current goes in one direction. Which it does. it is DC. Period. If there's a capacitor it's smoothed DC. If you look with a scope it may say "it's 8V RMS + 6Vpp AC" , but that just means it's counting the ripple as AC. AC means alternating current. If the current goes in the same direction always there is no AC component to the current.
@TonyStewart In frequency analysis there's components of (possibly mild 50(60)Hz), 100(120)Hz, etc, as with any ripple. The ripple is not an alternating current at the output, hence the adaptor has no AC component and is DC period.
This is a list of IPv6 tunnel brokers that conform to the principles of RFC 3053 which describes a system with which users can request creation of an IPv6 tunnel on a host called a point of presence (PoP) that provides IPv6 connectivity to the user's network.
The columns in the table provide the following details:
== References... ==