Power Electronics in CONVERTERS

2. CHOPPER:-
• Chopper is a circuit used to convert a
fixed DC into variable DC voltage.
Chopper is a dc-dc converter. The input
is uncontrolled dc and the output is a
controlled dc.
• STEP UP CHOPPER : - when average
output voltage Vdc is greater than dc
input voltage Vs.then it is called STEP
UP CHOPPER.
• STEP DOWN CHOPPER : - If chopper
output voltage is lower than input

4. Step Up
Chopper
I/P < O/P

6. Step Down
Chopper
I/P > O/P

8. Step
Down
Chopper
I/P > O/P

9. •Thank
you