外部 ac-dc電源適配器, 基本電壓

nameplate output power (pout)

minimum average efficiency in active mode 
(expressed as a decimal)

maximum power in no-load mode [w]

pout  ≤1 w

≥0.5 × pout + 0.16

≤ 0.075

1 w < pout ≤ 49 w

 ≥0.071 × ln(pout) - 0.0014 × pout + 0.67

≤ 0.075

49 w < pout ≤ 250 w

 ≥0.890

 ≤0.150

pout > 250 w

n/a

n/a

外部 ac-dc 電源適配器, 低電壓（小于6v,大于550ma）

nameplate output power (pout)

minimum average efficiency in active mode 
(expressed as a decimal)

maximum power in no-load mode [w]

pout ≤ 1 w

 ≥ 0.517 × pout + 0.087

≤ 0.075

1 w < pout ≤ 49 w

 ≥0.0834 × ln(pout) - 0.0014 × pout + 0.609

≤ 0.075

49 w < pout ≤ 250 w

 ≥ 0.88

≤ n/a

pout > 250 w

n/a

≤n/a

外部 ac-dc 電源適配器, 10%

nameplate output power (pout)

minimum average efficiency in active basic-voltage

minimum average efficiency in active low-voltage

pout ≤ 1 w

 ≥ 0.50 × pout + 0.060

≥ 0.57 × pout 

1 w < pout ≤ 49 w

 ≥0.071 × ln(pout) - 0.0014 × pout + 0.570

≥0.0834 × ln(pout) - 0.0014 × pout + 0.509

49 w < pout ≤ 250 w

 ≥ 0.79

≥ 0.78

pout > 250 w

n/a

≤n/a