1

2

3

4

D

D

R2

150K

C4

D1

R3

C

2045CT

C

10K

J1

100nF

L1

J3

1

1

22uH

+12V

+ C1

+ C2

+20V

7

1

1000uF

1000uF

U1

+ C8

+ C9

+ C10

C3

R10

220uF

220uF

220uF

100nF

p

100K

cc

m

V

o

2

Vfb WEJŚCIE

C

2

Q1

WYJŚCIE

8

MTP75N03HDL

Vref 6

R5

1

Output J2

R1

R11

10R

J4

10K

9,1K

d

1

n

R6

1

4

3

Rt/Ct 3

G Current sense GND

C5

R

GND

1K

10nF

C6

W

R4

P

2,2nF

27K

R7

R8

R9

B

B

5

UC3843

10K

20K

C7

0,1R

470pF

A

A

1

2

3

4