8

3

BRIDGE

4 x 1N4007

R9 (*)

950K

C1

1

µF

250V

R10

10K

C2

22

µF

25V

FUSE 4A/250V

Vac

(85V to 135V)

R3 (*)

240K

D3 1N4150

D2

1N5248B

R2

100

10nF

C6

R1

T

5

6

L6561

7

21

C3 680nF

R5

MOS

STP7NA40

D1 BYT03-400

R7 (*)

950K

C5

100

µF

315V

Vo=240V

Po=80W

+

-

D97IN549B

TRANSFORMER

T: core THOMSON-CSF B1ET2910A (ETD 29 x 16 x 10mm) OR EQUIVALENT (OREGA 473201A7)

primary 90T of Litz wire 10 x 0.2mm

secondary 11T of #27 AWG (0.15mm)

gap 1.8mm for a total primary inductance of 0.7mH

R6 (*)

0.31

1W

R8

10K

1%

+

-

C7

10nF

NTC

4

(*) R3 = 2 x 120K

Ω

R6 = 0.619

Ω/2

R7 = 2 x 475K

Ω, 1%

R9 = 2 x 475K

Ω

10

68K

Figure 3. Typical Application Circuit (80W, 110VAC)

8

3

BRIDGE

4 x 1N4007

R9 (*)

1.82M

C1

560nF

400V

R10

10K

C2

22

µF

25V

FUSE 2A/250V

Vac

(175V to 265V)

R3 (*)

440K

D3 1N4150

D2

1N5248B

R2

100

10nF

C6

R1

T

5

6

L6561

7

21

C3 1

µF

R5

MOS

STP5NA50

D1 BYT13-600

R7 (*)

998K

C5

56

µF

450V

Vo=400V

Po=120W

+

-

D97IN550B

TRANSFORMER

T: core THOMSON-CSF B1ET2910A (ETD 29 x 16 x 10mm) OR EQUIVALENT (OREGA 473201A8)

primary 90T of Litz wire 10 x 0.2mm

secondary 7T of #27 AWG (0.15mm)

gap 1.25mm for a total primary inductance of 0.8mH

R6 (*)

0.41

1W

R8

6.34K

1%

+

-

C7

10nF

NTC

(*) R3 = 2 x 220K

Ω

R6 = 0.82

Ω/2

R7 = 2 x 499K

Ω,1%

R9 = 2 x 909K

Ω

4

68K

10

Figure 4. Typical Application Circuit (120W, 220VAC)

8

3

BRIDGE

4 x 1N4007

R9 (*)

1.24M

C1

1

µF

400V

R10

10K

C2

22

µF

25V

FUSE 4A/250V

Vac

(85V to 265V)

R3 (*)

240K

D3 1N4150

D2

1N5248B

R2

100

12nF

C6

R1

T

5

6

L6561

7

21

C3 1

µF

R5

MOS

STP8NA50

D1 BYT13-600

R7 (*)

998K

C5

47

µF

450V

Vo=400V

Po=80W

+

-

D97IN553B

TRANSFORMER

T: core THOMSON-CSF B1ET2910A (ETD 29 x 16 x 10mm) OR EQUIVALENT (OREGA 473201A8)

primary 90T of Litz wire 10 x 0.2mm

secondary 7T of #27 AWG (0.15mm)

gap 1.25mm for a total primary inductance of 0.8mH

R6 (*)

0.41

1W

R8

6.34K

1%

+

-

C7

10nF

NTC

(*) R3 = 2 x 120K

Ω

R6 = 0.82

Ω/2

R7 = 2 x 499K

Ω, 1%

R9 = 2 x 620K

Ω

4

68K

10

Figure 5. Wide-Range Application (80W)

L6561

6/11