Adapting the board for a 230 V input mains range

AN2961

12/14

Doc ID 15559 Rev 1

7

Adapting the board for a 230 V input mains range

The board can be adapted to operate in the 230 V input range by changing the input filter.

The electrolytic input capacitor has been replaced by a polyester capacitor.

Table 5.

Bill of material for 230 VAC input

Type

Name

Value

Rated

Description

C

C1

22 µF

50 V

Electrolytic

C

C3

Do not fit

Do not fit

Do not fit

C

C4

470 nF

50 V

Ceramic

C

C5

22 µF

50 V

Electrolytic

C

C6

470 nF

50 V

Ceramic

C

C7

470 nF

400 VDC

Polyester EPCOS B32561J6474K

C

C8

470 nF

400 VDC

Polyester EPCOS B32561J6474K

D

D1

39 V

Zener diode

D

D2

STTH1R06A

600 V

STMicroelectronics

DD3

Bridge

600 V

500 mA

Rectifier bridge

D

D4

STTH1R06A

600 V

STMicroelectronics

L

L1

1 mH

EPCOS B7818S1105J000

L

L2

1 mH

Coilcraft MSS1260-105KLB

Q

Q1

BC557B

PNP transistor

Q

Q2

BC547B

NPN transistor

R

R1

4.7 k

Ω

SMD resistor 0805

R

R2

4.7 k

Ω

SMD resistor 0805

RR3

10 k

Ω

SMD resistor 0805

RR4

10 k

Ω

SMD resistor 0805

RR5

1.3

Ω

SMD resistor 1206

R

R6

6.8 k

Ω

SMD resistor 0805

R

R7

10

Ω

1/2 W

Through hole resistor

U

IC1

VIPER22ASTR-E

STMicroelectronics