How To Make a 0-12V Variable Power Supply In Sinhala | Part 02
How To Make a 0-12V Variable Power Supply In Sinhala | Part 02
Expanding the setup to a 0-12V variable power supply.
We have already completed the 12V fixed powersupply tutorial vide so if you havent
watched it first watch it and continue.
By now we have completed the project upto a 12V fixed power supply as our next step we are to make the power supply variable.
Additional Components Required:
D400 x1
2N3055 x1
100kO variable resistor
1kO
Determining the pins of the d400 transistor is very straight forward but it can be tricky in the case of 2n3055.
Refer the pdf for the pin configuration of the D400 transistor:
2N3055 :
According to the data sheet the metal casing is the collector of the transistor.
The problem is identifying the base and the emitter of the transistor.
Steps:
Put the multimeter to the diode mode.
Connect the probes of the multimeter to the two leads of the transistor.
If there is a reading on the multimeter then the positive probe is the base and the negative probe is the emitter.
If there is no reading, reverse the probes of the multi meter then you will notice a reading as said before the red probe will point to the base and the black probe will point to the emitter.
The critical problems are now clarified next is to assemble the parts , the below circuit diagram shows the setup.
The circuit diagram is included in the PDF doucument attached below make sure you download it.
After soldering the components according to the above circuit diagram you have successfully made a variable power supply.
You can turn the volume control to change the voltage from 0 – 12V.
This can be used for your future projects to obtain power.
Safety Precautions:
Avoid short circuits.
Fix the components inside a box and avoid direct contact of the internal components
Use proper insulation where necessary.
PDF Download - https://goo.gl/olVk11
Fb Group : https://www.facebook.com/groups/vikilab17
Fb Page : https://www.facebok.com/vikilab17
WebSite : http://www.vikilab.com
Expanding the setup to a 0-12V variable power supply.
We have already completed the 12V fixed powersupply tutorial vide so if you havent
watched it first watch it and continue.
By now we have completed the project upto a 12V fixed power supply as our next step we are to make the power supply variable.
Additional Components Required:
D400 x1
2N3055 x1
100kO variable resistor
1kO
Determining the pins of the d400 transistor is very straight forward but it can be tricky in the case of 2n3055.
Refer the pdf for the pin configuration of the D400 transistor:
2N3055 :
According to the data sheet the metal casing is the collector of the transistor.
The problem is identifying the base and the emitter of the transistor.
Steps:
Put the multimeter to the diode mode.
Connect the probes of the multimeter to the two leads of the transistor.
If there is a reading on the multimeter then the positive probe is the base and the negative probe is the emitter.
If there is no reading, reverse the probes of the multi meter then you will notice a reading as said before the red probe will point to the base and the black probe will point to the emitter.
The critical problems are now clarified next is to assemble the parts , the below circuit diagram shows the setup.
The circuit diagram is included in the PDF doucument attached below make sure you download it.
After soldering the components according to the above circuit diagram you have successfully made a variable power supply.
You can turn the volume control to change the voltage from 0 – 12V.
This can be used for your future projects to obtain power.
Safety Precautions:
Avoid short circuits.
Fix the components inside a box and avoid direct contact of the internal components
Use proper insulation where necessary.
PDF Download - https://goo.gl/olVk11
Fb Group : https://www.facebook.com/groups/vikilab17
Fb Page : https://www.facebok.com/vikilab17
WebSite : http://www.vikilab.com
Comments
Post a Comment