| Author |
Message |
hbklau
Joined: 04 Nov 2009
Posts: 2
Location: Singapore
|
 04 Nov 2009 18:39 Construction of DC to DC converter (Boost) |
|
|
|
|
Hi all,
I have some questions to ask over here and hope someone can guide me along. Thanks. I am now doing my Final Year Project and it is a topic on DC to DC converter. I had read some information and very puzzled on what are the values of the components require for it. There are inductor, capacitor and resistor(load). But how are we going to determine the value of those components and where should I start off? Appreciate your guidance.
|
|
| Back to top |
|
 |
Mr.Cool
Joined: 20 Jun 2001
Posts: 641
Helped: 24
|
05 Nov 2009 4:43 Re: Construction of DC to DC converter (Boost) |
|
|
|
|
you need to define some basic specs.
what is your input voltage
what is your output voltage
what is your power
what is your switching frequency
what DC/DC topology did you chose
defining the cap, inductor etc. is all related to the above.. so you need to conceptualize your converter first.. then add the details.
Mr.Cool
|
|
| Back to top |
|
|
yzou_ua
Joined: 05 Nov 2008
Posts: 28
|
06 Nov 2009 21:07 Re: Construction of DC to DC converter (Boost) |
|
|
|
|
U really need the ripple requirements on output voltage & current to determine the minimum value of inductor & capacitor. The principle is that a) capacitor can eliminate the voltage ripple; b) can eliminate the current ripple.
Besides, the output voltage relies on the duty ratio of your switch (mosfet or BJT). So, u need to be clear what value of output voltage u want? and what value of input voltage u have?
All ur question and my above reply are just about the "main" circuit. U still need to take care of the "control" circuit, which is actually the most difficult one for ur project ......
Good luck, anyway.
| hbklau wrote: |
Hi all,
I have some questions to ask over here and hope someone can guide me along. Thanks. I am now doing my Final Year Project and it is a topic on DC to DC converter. I had read some information and very puzzled on what are the values of the components require for it. There are inductor, capacitor and resistor(load). But how are we going to determine the value of those components and where should I start off? Appreciate your guidance. |
|
|
| Back to top |
|
|
Google
AdSense
|
06 Nov 2009 21:07 Ads |
|
|
|
|
|
|
| Back to top |
|
|
hbklau
Joined: 04 Nov 2009
Posts: 2
Location: Singapore
|
08 Nov 2009 3:45 Re: Construction of DC to DC converter (Boost) |
|
|
|
|
Hi,
thank you all for your advise. I will try it out on my own. Now having exam. Will fully focus on it after the exam. Thanks for the advise.
|
|
| Back to top |
|
|
