Apr 19, 2006 #1 L lj053 Junior Member level 3 Joined Nov 7, 2004 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 204 Which type of comparator can use in the buck converter? the switch frequency is 500k~1MHz. Thanks.
Apr 19, 2006 #2 M mirja Newbie level 5 Joined Apr 6, 2006 Messages 8 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,335 you can go for a two-stage class a ouput opamp in open loop.
Apr 19, 2006 #3 S smartdream Member level 2 Joined Mar 31, 2006 Messages 53 Helped 10 Reputation 20 Reaction score 5 Trophy points 1,288 Activity points 1,652 I prefer to use Hysteresis comparator using two series classical open loop opamp with a lacth output
Apr 20, 2006 #4 L lj053 Junior Member level 3 Joined Nov 7, 2004 Messages 27 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 204 To smartdream: Can you show me its schmetic or some docs? thanks.
May 3, 2006 #5 J johnsmith101 Member level 2 Joined Oct 20, 2005 Messages 53 Helped 8 Reputation 16 Reaction score 2 Trophy points 1,288 Activity points 1,723 You can use a two-stage hysteresis comparator like that shown on page 475 of the Allen and Holberg CMOS book (2ed).
You can use a two-stage hysteresis comparator like that shown on page 475 of the Allen and Holberg CMOS book (2ed).