Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recharger output protection

Status
Not open for further replies.
R

rprodrigues

Member level 2
Member level 2
Joined
Nov 18, 2006
Messages
49
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
Itajubá MG Brazil
Activity points
1,653
Hi all,

I am implementing a way to protect my recharger output against reverse battery polarity connection.

I am using a P-MOSFET (low Rds on ON state) and a TIP31C (or any other NPN) as its driver, the way that is shown above.

negr3b.png


What do you think about it ? Do you think it could really work ? During simulations (Multisim) it seems to work fine.

Is there any other suggestion?

Thank you
 

Hi Dude
Transistor Q1 may not ON becoz Vbe will not be >0.7 while battery is connect in normal position.

-- babesh
 
BABESH said:
Hi Dude
Transistor Q1 may not ON becoz Vbe will not be >0.7 while battery is connect in normal position.

-- babesh
Click to expand...

I am sorry. That was my fault when I built the schematics!

Now it is fixed!
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top