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

CAR BATTERY POWER SUPPLY

Status
Not open for further replies.
Y

yassin.kraouch

Advanced Member level 2
Joined
Jul 5, 2009
Messages
631
Helped
40
Reputation
80
Reaction score
40
Trophy points
1,308
Activity points
5,094
hi,
i would like to know what is the current that the car battery could supply??and for example when i need to supply a microcontroller that is supplied from a car battery what precaution should i take??
 

A car battery can supply 600A or more to start a cold engine in winter.
A microcontroller takes only 5mA or less.

The "12V" from a car battery has spikes of up to 60V so you need a 5V regulator that is designed for cars.
Many "low dropout" 5V regulators have load dump protection for use in cars.
 

can anyone help me to find a circuit to protect my ragulator which the input come from a car battery??
 

i didn't understand what do you mean by Glass fuse??
 

yassin.kraouch said:
i didn't understand what do you mean by Glass fuse??
Click to expand...
A fuse is packaged in glass so you can see if it is burnt out and to keep nearby things from catching on fire.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top