why dc dc converter needs a design with PWM?

Status
Not open for further replies.
J

juaneduardodelgado

Newbie level 4
Joined
Jan 4, 2010
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Bogota
Activity points
1,327
Im looking for a dc dc converter implementation in web, and I found that all designs use a pwm chip to this.
I Know how work a dc dc converter that uses a pwm, capacitors and inductances. What I dont know is why I cant use a design with a simple transformer to implement a basic dc converter. I just want to change de output voltage and to get the maximum current.

Thanks.
 

You at least nead some kind of periodical operated switch to convert DC to AC voltage. Early DC/DC converters
(e.g. in tube car radios) have been using a mechanical chopper, later models a self oscillating transistor circuit.
 

current change-->magnetic change-->current change

That is the basic law of electromagnetic induction.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…