Need to run a string of LED emitters at 17.4V @ 350mA off of 12V (10.5V-14.6V). Need a current-mode, not just a blind voltage booster. The required ballast resistance would end up too hot.
I thought of using a capacitive voltage doubler then a ZXLD1362 to do a current-mode DC/DC buck, but the current is quite a bit higher than any voltage doubler chip I know and the capacitor would have to be pretty big and low ESR.
Are there any off-the-shelf boxed drivers that can do this?
Are there any good chips for building my own boost converter, without tons of extra components?
I thought of using a capacitive voltage doubler then a ZXLD1362 to do a current-mode DC/DC buck, but the current is quite a bit higher than any voltage doubler chip I know and the capacitor would have to be pretty big and low ESR.
Are there any off-the-shelf boxed drivers that can do this?
Are there any good chips for building my own boost converter, without tons of extra components?
