Isolated Transmitter

TFxxxxN Series

2014.03.18-A/2

Page 4 of 4

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sliding of potentiometer, and the both ends of potentiometer is to the zero or full reference of positive and negative regulating reference .

Sliding potentiometer to adjust signal full or changing the ratio of rise and fall can also adjust zero and full of the output signal.

As shown in the figure 3, Adjusting the potentiometer to positive can increase zero or full of the corresponding signal. Adjusting the

potentiometer to negative can reduce zero or full of the corresponding signal. The maximum recommended range of potentiometer is

10K ~1M , detail resistance selection according to the adjustment accuracy. C

ΩΩ

hoose larger resistance potentiometer for high precision

fine-tuning. Choose smaller resistance potentiometer for a wide range of rough adjustment.

Notice

Using the function of zero and full adjustment will affect original accuracy. Due to the effect on temperature drift of external

adjustment resistor and the stability of the potentiometer, temperature drift of product will be changed, too. For the zero and full adjustment

potentiometer, the ratio between positive resistance and negative resistance, which makes the zero point of different products

predetermined Zero point is diverse. Please set the value of potentiometer according to actual situation.

2. Recommended EMC circuit

Signal output

C1

10+

D1

11-

18+

D2

17-

C2

1+

2-

D3

R1

R2

16

15

Isolation power output

D4

R3

R4

9+

8-

7

6

Signal input

Power supply

Fig. 4

C1

100uF/35V

C2

100uF/35V

R1

Negative zero adjustment resistance

R2

Positive zero adjustment resistance

R3

Positive gain adjustment resistance

R4

Negative gain adjustment resistance

R5

Positive zero adjustment resistance

D1

SMCJ30A

D2

SMCJ28A

D3

SMBJ15A

D4

SMBJ15A

3. For more information please find the application notes on www.mornsun-power.com

Dimensions and Recommended Layout

Notes:

1. Packing Information please refer to 'Product Packing Information'. Packing bag number: 58240002;

2. Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25℃, humidity<75% when inputting

nominal voltage and outputting rated load;

3. All index testing methods in this datasheet are based on our Company’s corporate standards;

4. The performance indexes of the product models listed in this datasheet are as above, but some indexes of non-standard model

products will exceed the above-mentioned requirements, and please directly contact our technician for specific information;

5. We can provide product customization service;

6. Specifications of this product are subject to changes without prior notice.

Mornsun Guangzhou Science & Technology Co., Ltd.

Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China

Tel: 86-20-38601850-8801

Fax: 86-20-38601272

E-mail: info@mornsun.cn