Does the G-11 have the 492 digital drive or a Gemini? If it¡¯s the 492, I¡¯ve measured the power consumption at 250mA when tracking and 400mA slewing at 16x. Nowhere near 3A. And there¡¯s no reason to run a higher voltage on the 492, as the ¡°12V¡± input is regulated down to 5V.
That USB powered hub doesn¡¯t consume 3A. That rating must be based on powering a bunch of other USB devices from the hub. The hub itself will use an insignificant amount of power, so just add up the the current requirements of whatever is powered from the hub.
For the Canon, you could use a switching regulator to convert 12V to 8V, something like this: <>
It would need less than 2.5A at 12V input to produce 3A/8V output.
-Les
On 5 Nov 2017, at 3:40, tglynn72@... [Losmandy_users] <Losmandy_users@...> wrote:
I'm trying to figure out the power requirements needed for my pier. In the description of the mount it says
"Dual 12~18 VDC input/output (3.0 A)" is that the requirement or the output from the dual connection? The other items on the pier are:
SBig stt-8300 with filter wheel (3.5a)
zwo120mm ____?
Canon 6D (8v, 3a) ?????
USB 3.0 powered hub (3 amps)
QHY polemaster camera (0.35W, 70 mA (approx.)
I'm looking for a power supply to have enough amperage to run through a KMTronic usb 8 channel relay board.
The Canon is another problem. Any help would be appreciated.
I'm trying to manage my cable system to a "WATCH OUT FOR THE WIRES" resolve. On my old G-! 11 I was running a 16v power supply. Is 16 volt better than 12 for my new G-11, or is that not the issue the amperage is the issue?
My scopes on the mount are piggybacked
ES127CF
WO 81GTF
Stellarvue SX50
Thomas Glynn
Happy astronomer
Springfield MO
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