CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to support@ccsinfo.com
Battery powered project

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
Guest
Guest
Battery powered project
PostPosted: Wed Oct 12, 2005 7:31 am     Reply with quote
Hi,

I am looking for tips on using battery power for my project, my porject is A GSM based SMS project, I have found a battery that can handle the pulse (2A) but I am not sure about certain things (below), the GSM needs 3.4v - 4v max 2A (pulse), I can use either a 3.6v or 3.9v battery

The PIC I will using will be a low voltage one so I should be able to run it from the battery. I will not be using a recharge circuit


1) Do I need any power conditioning smoth boost?
2) Should I consider a boost reg so the battery does not drop below 3.4v until it's totaly empty
3) Anything else I should consider?
kender



Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley

View user's profile Send private message Send e-mail Visit poster's website Yahoo Messenger

Re: Battery powered project
PostPosted: Wed Oct 12, 2005 1:24 pm     Reply with quote
Guest wrote:
1) Do I need any power conditioning smoth boost?

When you battery is full and it's terminal voltage is high you will get away without additional power conditioning.

Guest wrote:
2) Should I consider a boost reg so the battery does not drop below 3.4v until it's totaly empty.

Yes, you should. You can step-up the battery voltage to 4V at the expense of step-up converter efficiency and circuit complexity. Whether you want to step-up or not depends on the battery life duration of your device.

Guest wrote:
3) Anything else I should consider?

This fall Microchip will be providing seminars called "Portable Power Management Design" http://techtrain.microchip.com/seminars/

.
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group