Re: 12V to 7.2V DC converter circuit?
- From: g20zoom@xxxxxxxxx
- Date: 11 May 2006 09:14:49 -0700
Thanks for moving the post. Sorry, I didn't know.
I think I need about 3-4 amps. It's a motor to start a small nitro RC
engine (.15 size)
I guess the motor is about a mabuchi 380 in size.
The starting requires a bit of pulse starting(ie on for 15-20 seconds
off again, on again) so I imagine the initial start loads maybe a
little higher?
I took this from some other posting on the web:
checked the specs for the 380/400 motor too :Specification
Nominal voltage 7,2 V
Operating voltage range 3,6 ... 8,4 V
No-load rpm 16400 min1
No-load current drain 0,5 A
Current drain at max. efficiency 3,3 A
Current drain when stalled 21 A
Max. efficiency without gearbox 72 %
Length of case, excl. shaft 37,8 mm
Diameter 27,7 mm
Free shaft length 13,8 mm
Shaft diameter 2,3 mm
Weight 73 g
.
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