B
Bill Cotton
- Jan 1, 1970
- 0
I need a 5 volts regulated power supply for my Quest gps. I have modified
the charging Cradle so that I can use a 4.8 battery pack. I don't get much
use as the gps needs about 4.5 volts to not use it internal battery.
http://www.billcotton.com/quest_on_bicycle.htm I built a regulator using a
Maxium 1659 IC. I get 5 volts at 350 ma.
The external power draw from a external battery, measured a maximum of 650
ma, highest when powering up. averaging about 380 while simulating a route,
down to about 60 ma with no activity. This was with a full internal battery.
I hooked the Maxim regulator to the gps and it cuts out after about ten
minutes.
I built a second regulator and wired the output in Parallel. The output
voltage jumped to 11 volts.
Is there a equivalent LDR with about 700 ma output. Or is there a way to
parallel the two 350 ma regulator that I have?
the charging Cradle so that I can use a 4.8 battery pack. I don't get much
use as the gps needs about 4.5 volts to not use it internal battery.
http://www.billcotton.com/quest_on_bicycle.htm I built a regulator using a
Maxium 1659 IC. I get 5 volts at 350 ma.
The external power draw from a external battery, measured a maximum of 650
ma, highest when powering up. averaging about 380 while simulating a route,
down to about 60 ma with no activity. This was with a full internal battery.
I hooked the Maxim regulator to the gps and it cuts out after about ten
minutes.
I built a second regulator and wired the output in Parallel. The output
voltage jumped to 11 volts.
Is there a equivalent LDR with about 700 ma output. Or is there a way to
parallel the two 350 ma regulator that I have?
