Oct 4, 2005 #1 T tyanata Full Member level 2 Joined Nov 27, 2003 Messages 123 Helped 6 Reputation 12 Reaction score 3 Trophy points 1,298 Location Sofia Activity points 975 Can any one give an idea or for current comparator circuit.
Oct 4, 2005 #2 E electronrancher Advanced Member level 1 Joined Mar 24, 2002 Messages 447 Helped 46 Reputation 92 Reaction score 11 Trophy points 1,298 Activity points 6,935 Current comparator Can you elaborate? Current comparator meaning a comparator using current mode, or current comparator such as 1A current limit on a DC-DC converter?
Current comparator Can you elaborate? Current comparator meaning a comparator using current mode, or current comparator such as 1A current limit on a DC-DC converter?
Oct 4, 2005 #3 S sunking Advanced Member level 3 Joined May 25, 2004 Messages 873 Helped 70 Reputation 140 Reaction score 23 Trophy points 1,298 Activity points 6,283 Current comparator change the current to a voltage.
Oct 5, 2005 #4 T tyanata Full Member level 2 Joined Nov 27, 2003 Messages 123 Helped 6 Reputation 12 Reaction score 3 Trophy points 1,298 Location Sofia Activity points 975 Re: Current comparator I want to compare two currents, and on the base of it to make signal for the digital part of the chip.
Re: Current comparator I want to compare two currents, and on the base of it to make signal for the digital part of the chip.
Oct 6, 2005 #5 N neoflash Advanced Member level 1 Joined Jul 2, 2005 Messages 492 Helped 10 Reputation 20 Reaction score 2 Trophy points 1,298 Activity points 4,759 Current comparator The current comparator should be based on current mirror. If you mirror Ia by a PMOS into node Out, and mirror Ib by a NMOS into node out, you actually get a summing node: Ia-Ib. Since out is a high impedance node, any slight current difference will result in a digital 1 or 0.
Current comparator The current comparator should be based on current mirror. If you mirror Ia by a PMOS into node Out, and mirror Ib by a NMOS into node out, you actually get a summing node: Ia-Ib. Since out is a high impedance node, any slight current difference will result in a digital 1 or 0.