Sharp MZ-80SFD Manual de usuario descargar pdf (Pagina 15)

!

POWER

supplv

SEcnON

Block Diagram

of

Power Supply Section

v

v

.---

..---

..

+12

Gl

~

E

Rectifying

and

Transistor

'-'

..

..

AC

Gl

~

Chopping

~

Smoothing

INPUT

LL

I--

c

Circuit

Circuit

..

t--

'-F

..

...

"--

:......-

Control

Circuit

1

G

~

...-<>

Transistor

+5

'"'-

Rectifying and

Chopping

Somoothing

Circuit

'---

Circuit

~

Control

Circuit

1

Waveform

of

Each

Part

Waveform

of

pin@

of

IC201

and

pin

(5)

of

IC301.

Waveform

of

pin

([j)

of

IC201.

Q202 collector waveform.

I

22V

/-22~s-i

40~s~

22V

24~s

4(j~s

Waveform

of

pin

([j)

of

IC301.

0302

collector

waveform.

15V

15~s

40~s

-13-

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 23 24

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