Is that really true? I noticed that in schematics that Google brings up there is no tranformer in most cases!drgeoff wrote:Yes a switch mode PSU is isolated from AC mains for safety reasons.
Ik purchased a Hama 2100mA...DougieLawson wrote:If it is a stock USB or microUSB then you can be just about 100% sure it's 5V0 (unless it's something crappy and unsafe from China).JustCurious wrote:How can I determine if my charger delivers 5V exactly? Done with/without load?
Where is TP1 located?mahjongg wrote:with the PI as load! Connect it to the PI, and power it up, use a multimeter to measure the voltage across the two supplied test points TP1 and TP2.JustCurious wrote:How can I determine if my charger delivers 5V exactly? Done with/without load?