FREE DIY open source BOOST driver!!! Tested & working!!

Le Quack said:

Not that much bigger. I was looking around for inductor design choices for SEPIC converters, and found that most inductors at around 250 kHZ require 2.4 amps max saturation current total. The one that is chosen for the boost converter can handle 3.4 amps without saturation. So, it can't be that much more expensive to get a dual winding inductor at 10 uH, that can handle that much saturation current.

Click to expand...

So why don't you build a prototype SEPIC Driver and
report your findings back here...:beer:


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

Perhaps I shall!

Though, I have almost nil experience with designing PCB boards themselves. Guess it's time to start learning!

And I gotta find a dual winding inductor. Meh.

Just a little correction: that schematic belongs to National, not TI

Texas Instruments bought out National, so they're TECHNICALLY the same company now actually!

Johnyz said:

Just a little correction: that schematic belongs to National, not TI

Click to expand...

You may be right.... I just looked at the name on that
Data Sheet..
My point was that no-one here can deny anyone to use
that circuit for any reason even to sell it....


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

lasersbee said:

You may be right.... I just looked at the name on that
Data Sheet..
My point was that no-one here can deny anyone to use
that circuit for any reason even to sell it....

Click to expand...

I don't think anyone was trying to assert any sort of hard intellectual property rights here. It's courtesy, and it's honour-system stuff.

Keep in mind that our intention with this driver IS to get it out there in as many people's hands as possible. I think we just didn't want some opportunist making them and selling them for near the price of a Flexdrive. We're happy to have donated our time, but we want to have donated it to the community, and not to some rando's wallet

Nothing that I've seen developed in this forum would seem patent worthy (including the Flex btw), so I'm not sure what anyone could do, short of an honour-system request

rhd said:

I don't think anyone was trying to assert any sort of hard intellectual property rights here. It's courtesy, and it's honour-system stuff.

Keep in mind that our intention with this driver IS to get it out there in as many people's hands as possible. I think we just didn't want some opportunist making them and selling them for near the price of a Flexdrive. We're happy to have donated our time, but we want to have donated it to the community, and not to some rando's wallet

Nothing that I've seen developed in this forum would seem patent worthy (including the Flex btw), so I'm not sure what anyone could do, short of an honour-system request

Click to expand...

First... I'm only going by what your disclaimer stated...

I has nothing to do with patentability....
As to intellectual rights... those clearly belong to TI/National...

I can't see anyone trying to make these for sale here in small
quantities since we all know the cost of parts in onesies....

But if someone would invest the $$$ and make these in the thousands
and pre-built and tested for a reasonable mark up price and fast
shipping the Forum Community would be all over those Drivers like
Flies on $hit...

Whether there is an Disclaimer or Honor system of "your not allowed...."

If someone would take the time and Invest their $$$ in the Thousands
of parts... Assembly costs... and testing time it would take to be able
to offer the TI/National circuit without copying your PCB's mechanical
layout... I can't see a problem of them being sold....

You can't possibly think that one can put an Honor System of "your not
allowed to sell these" on a circuit that clearly belongs to TI/National
who freely shares it with anyone....:beer:


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

lasersbee said:

You can't possibly think that one can put an Honor System of "your not allowed to sell these" on a circuit that clearly belongs to TI/National
who freely shares it with anyone....:beer:

Click to expand...

We didn't. Did we?

I don't think we said anything about the circuit. In fact, Ben didn't post the circuit (schematic) initially. He only posted the PCB board layout file in the initial thread.

The circuit / schematic wasn't added into the mix until you asked for it. When Ben wrote that first post, and when he made the comment about asking people to chat with us before selling the drivers, the only thing posted was the exact PCB board layout file we had come up with. That's all he had posted, and that's all his comment referred to. As you've already pointed out:

lasersbee said:

What you can do is control the use of the exact PCB that you designed...

Click to expand...

So what are we disagreeing about here ?!?

- Ben posted a PCB file.
- Ben asked people to chat with us before selling it.
- Then you asked him for a schematic.
- Ben obliged and posted the schematic.
- Now you're saying "hey, you can't ask people to chat with you before selling your schematic!" (a schematic that he only posted after the fact because you asked for it)

:thinking:

rhd said:

We didn't. Did we?

I don't think we said anything about the circuit. In fact, Ben didn't post the circuit (schematic) initially. He only posted the PCB board layout file in the initial thread.

The circuit / schematic wasn't added into the mix until you asked for it. When Ben wrote that first post, and when he made the comment about asking people to chat with us before selling the drivers, the only thing posted was the exact PCB board layout file we had come up with. That's all he had posted, and that's all his comment referred to. As you've already pointed out:



So what are we disagreeing about here ?!?

- Ben posted a PCB file.
- Ben asked people to chat with us before selling it.
- Then you asked him for a schematic.
- Ben obliged and posted the schematic.
- Now you're saying "hey, you can't ask people to chat with you before selling your schematic!" (a schematic that he only posted after the fact because you asked for it)

Click to expand...

I'm not disagreeing.... I'm stating facts...
Where did I say anything about "chatting"....:thinking:
Are you on the same page...:thinking:
The word was "permission"...

BTW.... the sequence of events is irrelevant.... There is an
[edit] button on the bottom of every post to make changes..

Perhaps you didn't read the disclaimer on the 1st post of this
thread or maybe I can't read English...


Quote
A little disclaimer: You are free to make and use these drivers
as you please, but you do not have the right to SELL these drivers
without my or Rhd's permission.

The disclaimer clearly states that No-one has the right to SELL these
drivers without Ben's or RHD's permission...

Using the experience and common sense that I've learned by
working in the Electronics field... I am 100% sure that the "Driver"
mentioned in the disclaimer does not just exist as an unmounted
untested and void of any electronic components or circuitry...

It is obviously clear that the "driver" in the disclaimer includes the
TI/National Data Sheet Circuit...

I'm just saying that the "disclaimer" is useless and can't be used
for the circuit.
It can only be used for the PCB layout shown in the 1st post and
should so state.


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

lasersbee said:

It is obviously clear that the "driver" in the disclaimer includes the
TI/National Data Sheet Circuit...

Click to expand...

No, I don't think so Jerry. Ben hadn't posted the circuit when he wrote that "disclaimer". All he had posted was the PCB design layout file. That's all he could have been referring to.

He didn't add the circuit / schematic until much later after writing the "disclaimer" (when you asked him for it)

As I've already stated... The sequence of events is irrelevant...

What part of the [Edit] Button sentence above is so confusing RHD..
(Opps...almost used your real name...)

Ben or yourself had 4 days to edit the disclaimer... As it is written
as of this post I stand my ground....

The Disclaomer can still be modified to clarify exactly what you are
legally giving permission for..


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

Jerry, in case you hadn't noticed this is the internet and people often say what they want. I didn't want people to "steal" the designs and sell them so I said that they couldn't. It's fairly obvious that I have no way of enforcing that.

Also, the schematic I posted actually Is not the property of TI or National. Because of the addition of Q1 and C3 plus my component values there is no way you can say it is the same circuit. It may be based off of the example circuits, but there is no way to copy their schematics (whether you change the values or not) and end up with my schematic or circuit board.

That really doesn't matter anyways because that comment was directed at the board designs. As rhd pointed out the schematic wasn't even in the thread when I wrote that.

Go back and check the first post, I'm sure you will be really happy.

I gave you logical reasons why your disclaimer is useless
as stated... Either use the information to your advantage
or don't...

You guys can keep dancing around in circles for all I care...

I stand behind what I posted about the disclaimer as posted.
Anyone experienced in the Electronics field will see it the same
way...

Do as you please.... no skin off my nose....


Jerry

You can contact us at any time on our Website: J.BAUER Electronics

lasersbee said:

What part of the [Edit] Button sentence above is so confusing RHD..
(Opps...almost used your real name...)

Ben or yourself had 4 days to edit the disclaimer... As it is written
as of this post I stand my ground....

The Disclaomer can still be modified to clarify exactly what you are
legally giving permission for..

Click to expand...

"Look shark, we just jumped you!".

This is like top-10 on the LPF list of useless tangents.

Wow... really?

lasersbee said:

I gave you logical reasons why your disclaimer is useless
as stated... Either use the information to your advantage
or don't...

You guys can keep dancing around in circles for all I care...

I stand behind what I posted about the disclaimer as posted.
Anyone experienced in the Electronics field will see it the same
way...

Do as you please.... no skin off my nose....


Jerry

Click to expand...

Did you not look :thinking:

I changed it...

lasersbee said:

Since the circuit that is in the Data Sheet Application was
designed by a TI Electronics Engineer you cannot prevent
anyone from building and selling this Driver Circuit since
Texas Instruments owns that circuit and they allow anyone
to use it.

What you can do is control the use of the exact PCB that
you designed...


Jerry

Click to expand...

Jerry is absolutely right. As long as the PCB layout differs, it can be sold freely by anyone. Also, there is no IP in the use of the mosfet as a protection device. That is nothing new. National owns the IP for the remainder of the circuit.