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Clutch driver ?
#1
Is there a clutch or bypass solinoid driver ?

Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC. 

Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.
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#2
(06-26-2018, 11:41 PM)NahanniV Wrote: Is there a clutch or bypass solinoid driver ?

Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC. 

Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.

Yes.   For controllers based on brushless esc, the third phase (unused) pulls to gnd can be used for a clutch, already works on my controllers.


For the high current controller, there is also a terminal for this, and I intend to adjust the duty cycle to allow a reduced holding current to conserve power.
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#3
(06-29-2018, 10:54 AM)seandepagnier Wrote:
(06-26-2018, 11:41 PM)NahanniV Wrote: Is there a clutch or bypass solinoid driver ?

Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC. 

Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.

Yes.   For controllers based on brushless esc, the third phase (unused) pulls to gnd can be used for a clutch, already works on my controllers.


For the high current controller, there is also a terminal for this, and I intend to adjust the duty cycle to allow a reduced holding current to conserve power.

Great !

We will be moving aboard a boat in November that has a Raymarine TypeII rotary drive.
The Specifications say typical power consumption 60-84W and the clutch output of the recommended controller is up to 4A.

So, it looks like I would need the high current controller.


If you are implementing the reduced duty cycle to save power, I think it should be configurable on/off or solenoid/clutch because it should only be used with solenoids not mechanical clutches since it would reduce the maximum torque of a clutch.

Cheers,
JM.
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