HI all,
i work with a car company. We used a gps tracker system for some of our cars which were used for rental purposes. The problem which occcurred was tht the gps system used to restart everytime the ignition was turned on. To solve this i actually used a diode in series with +ve and then some caps in parallel.
The caps i used were 470pF, 100uF, 4700uF and 22000uF. Without the 22000uF the circuit used to restart. I thought of using an inductor and tried some out instead of the diode as an Inductor ideally has zero resistance. But this dint work for any of the values i tested for like 1uH, 10uH, 100uH and 1000uH.
I wanted to use this actually to reduce the big cap(22000uF) i used initially. Could someone please suggest any other useful techniques or something im ignoring.
Thanks
Srid
i work with a car company. We used a gps tracker system for some of our cars which were used for rental purposes. The problem which occcurred was tht the gps system used to restart everytime the ignition was turned on. To solve this i actually used a diode in series with +ve and then some caps in parallel.
The caps i used were 470pF, 100uF, 4700uF and 22000uF. Without the 22000uF the circuit used to restart. I thought of using an inductor and tried some out instead of the diode as an Inductor ideally has zero resistance. But this dint work for any of the values i tested for like 1uH, 10uH, 100uH and 1000uH.
I wanted to use this actually to reduce the big cap(22000uF) i used initially. Could someone please suggest any other useful techniques or something im ignoring.
Thanks
Srid