jz do it
Newbie level 3
buck boost chopper
hi all,
now i would like to build a buck-boost chopper which have variable output.
after i done my connection as shown in the figure, i found that 0V at my output..
no matter how i adjust the frequency fed in, the output is still 0V.
then i go to do some researches, i found that almost all the buck-boost chopper is done my using chips. One of my senior told me that this is because the inductor in basic connection of buck-boost chopper couldn't charged up the capacitor for the inductor current tends to go to ground of function generator. the basic connection can only be used when the ground of function generator separate from the -ve terminal of my input voltage.
my question is:
1)is my senior's comment right?
2)is the basic connection of buck boost chopper not practical to build?
hope u all can teach me...
[/img]
hi all,
now i would like to build a buck-boost chopper which have variable output.
after i done my connection as shown in the figure, i found that 0V at my output..
no matter how i adjust the frequency fed in, the output is still 0V.
then i go to do some researches, i found that almost all the buck-boost chopper is done my using chips. One of my senior told me that this is because the inductor in basic connection of buck-boost chopper couldn't charged up the capacitor for the inductor current tends to go to ground of function generator. the basic connection can only be used when the ground of function generator separate from the -ve terminal of my input voltage.
my question is:
1)is my senior's comment right?
2)is the basic connection of buck boost chopper not practical to build?
hope u all can teach me...