AC/DC Converter

LH10 Series

2015.08.24-B/3

Page 4 of 7

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Design Reference

1. Typical application circuit

AC(L)

+Vo

-Vo

AC(L)

AC(N)

AC(N)

C 1 C 2

TV S

RL

FUSE

AC DC

MO V

NTC

Fig. 1: LH10-10Bxx (SIngle Output) seriesTypical application circuit

FUSE

+Vo

AC(L)

AC(N)

-Vo

AC(N) C om

C 4

C 2

C 1

C 3

RL

TV S1

TV S2

RL

NTC

AC(L)

AC DC

MO V

Fig. 2: LH10-10Axx (Dual Output) series typical application circuit

+

-

C1

C4

C3

C2

-

Vo1

Vo2

TVS1

TVS2

RL

RL

FUSE

AC(L)

AC(N)

AC(N)

NTC

+

AC(L)

ACDC

M OV

Fig. 3: LH10-10Dxx (Isolate Twin Output) series typical application

circuit

+

C1

C4

C3

C2

-

Vo1

Com

TVS1

TVS2

RL

RL

FUSE

AC(L)

AC(N)

AC(N)

AC(L)

ACDC

MO V

+Vo2

C6

C5

TVS3

RL

-Vo2

NTC

Fig. 4: LH10-10Cxx (Triple Output) series typical application circuit

Model

C2(µF)

C4(µF)

C6(µF)

TVS1

TVS2

TVS3

LH10-10B03

470

SMBJ7.0A

LH10-10B05

330

SMBJ7.0A

LH10-10B09

120

SMBJ12A

LH10-10B12

120

SMBJ20A

LH10-10B15

120

SMBJ20A

LH10-10B24

68

SMBJ30A

LH10-10A05

220

220

SMBJ7.0A

LH10-10A12

120

120

SMBJ20A

SMBJ20A

LH10-10A15

47

47

SMBJ20A

SMBJ20A

LH10-10A24

33

33

SMBJ30A

SMBJ30A

LH10-10C0512-02

220

68

68

SMBJ7.0A

SMBJ20A

SMBJ20A

LH10-10C0515-02

220

47

47

SMBJ7.0A

SMBJ20A

SMBJ20A

LH10-10D0505-02

220

68

SMBJ7.0A

SMBJ7.0A

LH10-10D0512-02

220

68

SMBJ7.0A

SMBJ20A

LH10-10D0515-02

220

47

SMBJ7.0A

SMBJ20A

LH10-10D0524-02

220

47

SMBJ7.0A

SMBJ30A

Note:

Note: Output filtering capacitors C2, C4, C6 are electrolytic capacitors, it is recommended to use high frequency and low impedance electrolytic capacitor.

For capacitance and current of capacitor please refer to manufacture’s datasheet. Capacitor withstand voltage derating should be 80% or above. C1,C3, C5

are ceramic capacitors, which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails. External input

FUSE model is recommended to use 2A/250V slow fusing. External input NTC model is recommended to use 5D-9. External input MOV model is recommended to

use S14K300.

2. EMC solution-recommended circuit

ACDC

AC(N)

AC(L)

LCM

MOV1 CX

CY1

CY2

FUSE

AC(N)

AC(L)

+Vo

-Vo

+

LDM

C1

C2

TVS1

RL

Can use MORNSUN s FC-LX1D

'

Fig 5: EMC Recommended circuit with higher requirements

Element model

Recommended value

Element model

Recommended value

MOV1

S14K300

FC-LX1D

2KV/4KV EMC filter

CY1 , CY2

1000pF/400VAC

LDM

4.7μH/2A

CX

0.1μF/275VAC

FUSE

2A/250V slow fusing, necessary

LCM

10mH, recommended to use MORNSUN’s

FL2D-Z5-103

download the Selection Guide of EMC Filter