รายงาน แหล่งจ่ายไฟของกอฟ

1. Power
Supplies)
Block Diagram
Transformer)

2. step-up)
step-down)
(220V)
primary)
secondary)
turns
ratio) step-
down)

3. Vp Np =
= =
Vs Ns Vs × Is = Vp × Ip
Vs = ( )
Vp = ( )
Ns =
Np =
Is = ( )
Ip =
Bri
dge rectifier)
(
1.4V
0.7V ,

4. (
RMS
,
(
)
Smoothing)
,

5. 1.4
× RMS ) 6V RMS
4.6V
RMS ( 1.4V),
1.4 × 4.6 = 6.4V (DC)
ripple)
10%
10%, C = 5 × Io

6. Vs × f
Io =
Vs = ( DC )
f = AC (50Hz)
Re
gulator)
( 5, 12 15V)
overload protection)
(thermal protection)
3
, 7805

7. +5V 1A