T the_mog New Member Aug 17, 2010 #1 Hi All, I am trying to find a simple 1 shot / monostable circuit it needs to be a small as possible.. I basically need it to reset another circuit. this is done by switching off power to the second circuit for 3 sec's however once power is applied to the new circuit it will stay powered for up to 3 hours, so all the monostables i have seen dont seem to do the trick any help will be great K-
Hi All, I am trying to find a simple 1 shot / monostable circuit it needs to be a small as possible.. I basically need it to reset another circuit. this is done by switching off power to the second circuit for 3 sec's however once power is applied to the new circuit it will stay powered for up to 3 hours, so all the monostables i have seen dont seem to do the trick any help will be great K-
MikeMl Well-Known Member Most Helpful Member Aug 17, 2010 #2 You have not provided enough info. It is not so simple. What triggers the 3 second period? Button? Interruption of power? Turn-on of power? What is the power supply? Voltage? How much standby current can the timer draw? How does the 3 sec timer switch power to the second circuit? High-side? Low-side? How many amps? Last edited: Aug 17, 2010
You have not provided enough info. It is not so simple. What triggers the 3 second period? Button? Interruption of power? Turn-on of power? What is the power supply? Voltage? How much standby current can the timer draw? How does the 3 sec timer switch power to the second circuit? High-side? Low-side? How many amps?
Dr_Doggy Well-Known Member Aug 18, 2010 #3 flip flops toggle circuits, then you can put a timer/counter on the trigger and reset latches