1. Power Supply Design Industrial Attachment Training-2017 Presented By:
Engr. Shah Mim Obydulla
B.Sc in EEE (DUET)
Director of
Rainbow Automation
Rainbow
Automation
Industrial Attachment Training-2017

2. Industrial Attachment Training-2017
Power Supply ..
AC Power Supply
DC Power Supply
Switch Mode Power supply (SMPS)
Transformer Based Power Supply
1. Fixed Power Supply
2. Dual Power Supply
3. Variable Power Supply
( 0v, +5v, +12v .etc )
(+12 v, 0v, -12v .etc)
( 0 ~ V )
Rainbow
Automation
Industrial Attachment Training-2017

3. Circuit Diagram Of Fixed Power Supply
O/P
12V*2 , 3000mA D1
1N4007
I/P
220V AC
Pulse sating dc
ac + dc
Pure dc IC
+12 V +
1000 uf
50 V
C 1
0 V
17 V V
Output 12V _
Transformer D2
1N4007
V rms = V max *
=24 x =17V
0 V
Fig: Circuit Diagram Of Fixed Power Supply
Rainbow
Automation
Industrial Attachment Training-2017

4. Industrial Attachment Training-2017
Necessary Equipment
Transformer (12V x2 ,3000mA) pcs
Soldering Stand pcs
Diode (IN4007) pcs
Soldering Lead (as per requirement)
Capacitor (1000µF/50V) pcs
Soldering Rosin (as per requirement)
Regulator (IC 7812) pcs
Safety Goggle pcs
DC Load (Fan-12V) pcs
Connecting Wire (as per requirement)
Multimeter pcs
Wire Stripper (as per requirement)
Soldering Iron pcs
Masking Tape (as per requirement)
Rainbow
Automation
Industrial Attachment Training-2017

5. Industrial Attachment Training-2017
Transformer
A.C Input 220V
A.C O/P 12V
A.C Input 220V 0V
A.C O/P 12V
A.C Output
Fig: Transformer
Fig: Transformer Symbol
Rainbow
Automation
Industrial Attachment Training-2017

6. Anode Cathode Diode Industrial Attachment Training-2017 Fig: Diode
Fig: Diode Symbol
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Automation
Industrial Attachment Training-2017

7. - - Capacitor + + Industrial Attachment Training-2017
Fig: Capacitor
Fig: Capacitor Symbol
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Automation
Industrial Attachment Training-2017

8. Voltage Regulator IC 780XX1 2 3
Input
GND
Output
Fig: Voltage Regulator IC
Fig: Voltage Regulator IC Symbol
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Automation
Industrial Attachment Training-2017

9. Industrial Attachment Training-2017
DC Load
Fig: Cooling Fan & Lamp e.t.c
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Automation
Industrial Attachment Training-2017

10. Industrial Attachment Training-2017
Soldering Iron
Fig: Soldering Iron with Stand
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Automation
Industrial Attachment Training-2017

11. Industrial Attachment Training-2017
Soldering Lead & Rosin
Fig: Soldering Lead
Fig: Soldering Rosin
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Automation
Industrial Attachment Training-2017

12. Industrial Attachment Training-2017
Wire Stripper & Wires
Fig: Wire Stripper
Fig: Wires
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Automation
Industrial Attachment Training-2017

13. Industrial Attachment Training-2017
Wiring Diagram
Input AC
220 V
Fig: Wiring Diagram of Fixed Power Supply
Rainbow
Automation
Industrial Attachment Training-2017

14. Industrial Attachment Training-2017
Rainbow
Automation
Industrial Attachment Training-2017