F&P washing machine control module

[Clifford Heath]

Water-cooled MOSFETs! I've heard these machines have various problems,
but you have to respect the innovation that these engineers have shown.

I don't need to fix this one ... but I'd like to hear from anyone
who's successfully hacked the module to use it for another purpose...
It looks like a dual H-bridge driving a whopping stepper motor direct
from the rectified mains... is my guess right? That motor must have
huge torque to agitate the wash load.

Clifford Heath.

 

[Dave Goldfinch]

On Mon, 13 Aug 2007 10:04:47 +1000, Clifford Heath
<no@spam.please.net> wrote:

Water-cooled MOSFETs! I've heard these machines have various problems,
but you have to respect the innovation that these engineers have shown.

I don't need to fix this one ... but I'd like to hear from anyone
who's successfully hacked the module to use it for another purpose...
It looks like a dual H-bridge driving a whopping stepper motor direct
from the rectified mains... is my guess right? That motor must have
huge torque to agitate the wash load.

Clifford Heath.

You are right about the huge stepper motor.

There was a series of articles in SC a while back on how to use it as
a wind driven alternator. Didn't have any information on the control
module though.

Dave

 

[budgie]

On Mon, 13 Aug 2007 10:04:47 +1000, Clifford Heath <no@spam.please.net> wrote:

Water-cooled MOSFETs! I've heard these machines have various problems,
but you have to respect the innovation that these engineers have shown.

I don't need to fix this one ... but I'd like to hear from anyone
who's successfully hacked the module to use it for another purpose...
It looks like a dual H-bridge driving a whopping stepper motor direct
from the rectified mains... is my guess right?

It's not a stepper, and it is actually a 3-phase H-bridge.

That motor must have
huge torque to agitate the wash load.

Yup

 

[The Real Andy]

On Thu, 16 Aug 2007 14:41:31 +0800, budgie <me@privacy.net> wrote:

On Mon, 13 Aug 2007 10:04:47 +1000, Clifford Heath <no@spam.please.net> wrote:

Water-cooled MOSFETs! I've heard these machines have various problems,
but you have to respect the innovation that these engineers have shown.

I don't need to fix this one ... but I'd like to hear from anyone
who's successfully hacked the module to use it for another purpose...
It looks like a dual H-bridge driving a whopping stepper motor direct
from the rectified mains... is my guess right?

It's not a stepper, and it is actually a 3-phase H-bridge.

Thats the drive. I thought the motor itself was a brushless DC type?

That motor must have
huge torque to agitate the wash load.

Yup

 

[MJH]

water cooled mosfets are fine until the water is disrupted mid cycle (tank
pump stopped) and mosfets cooked themselves, was an old model, probably
early 90's, apparently no protection for loss of water flow.







"Clifford Heath" <no@spam.please.net> wrote in message
news:46bfa01f$0$11059$afc38c87@news.optusnet.com.au...

Water-cooled MOSFETs! I've heard these machines have various problems,
but you have to respect the innovation that these engineers have shown.

I don't need to fix this one ... but I'd like to hear from anyone
who's successfully hacked the module to use it for another purpose...
It looks like a dual H-bridge driving a whopping stepper motor direct
from the rectified mains... is my guess right? That motor must have
huge torque to agitate the wash load.

Clifford Heath.