Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
........
maybe......
but if u can give me some point, i will be very grateful for you.
the point is power-on and off, and zero-power when power is up
bow.........
Sorry if I sound blunt, but absolute "zero power" is not a realistic requirement, especially when the circuit is up and running. The rest of the circuit will draw significant current anyway, so it makes no difference if the reset circuit contributes a fraction of a percentage point.
Even when the circuit is in reset, it will still consume a certain amount of power, most likely far more than a good reset circuit. Do not forget that when in reset, the oscillators of the micros do not stop, and since it is the switching action that leads to power consumption, the rest of the circuit will draw significant power, even though it is in "reset".
Second, you say you do not want to use a comparator, but on the other hand you need brownout protection.
These are conflicting requirements. So you will have to compromise somewhere.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
