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Which N Or P Power MOSFETs ?

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** Reads much like a: " The customer is Always Right " sign. IOW it's quite meaningless and meant to be.

But made me think about the luck element in producing a good design, not just on paper or a prototype - but the final thing. It's lucky if:

  1. There are no design mistakes or shortcomings.
  2. No components have defects or perform under spec.
  3. Assembly is without flaw.
  4. Customers want to buy them.
  5. The selling price is competitive and no other decides to under cut.
  6. The Chines don't copy it.

..... Phil

Reply to
Phil Allison
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On Sunday, November 29, 2020 at 2:00:54 PM UTC+11, snipped-for-privacy@gmail.com wrote :

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just on paper or a prototype - but the final thing.

There always are, but most of them don't do enough damage to matter,

It doesn't matter if you catch the defect when you test before you ship.

It doesn't matter if you catch the flaw when you test before you ship.

Why design stuff that people don't want to buy? I've done it for fun, but s topped the design process at the point where it got tedious of expensive.

Which you can't find out until you have started selling the product. You ca n make a well-informed estimate of what might be a competitive selling pric e, and work out how much your potential competitors can afford to shave off their prices, but it's a crap-shoot.

They won't bother if the market is small and local. If you are selling into a international mass market, which does require high volume production and expensive tooling up, they are always potential competition. Most people w ho produce in high volume sub-contract lots of the work to Chinese manufact urers, who are famous for making more parts than they get paid for and asse mbling the extra parts into a competing product, if they can.

--
Bill Sloman, Sydney
Reply to
Bill Sloman

Possibly meaningless to you. We are in different businesses.

--

John Larkin         Highland Technology, Inc   trk 

The cork popped merrily, and Lord Peter rose to his feet.   
"Bunter", he said, "I give you a toast. The triumph of Instinct over Reason"
Reply to
John Larkin

Perhaps not as different as John Larkin likes to think. Both sets of customers are fairly unsophisticated about electronics, but pretty rigorous about the results they expect to get.

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Bill Sloman, Sydney
Reply to
Bill Sloman

** Yep - perfection is merely expected. For a tiny cost and no thanks or praise is ever likely.

...... Phil

Reply to
Phil Allison

My customers appreciate perfection but don't expect it. They know that electronics is complex and things sometimes go wrong. What they truly appreciate is honesty about what's actually going on, and energetic fixes.

One customer tried to pay us to fix one of our bugs, on the theory that they could afford it more than we can. I'm having an ongoing fight with another to take blame for a problem; they insist it's their fault and we insist it's ours.

--

John Larkin         Highland Technology, Inc   trk 

The cork popped merrily, and Lord Peter rose to his feet.   
"Bunter", he said, "I give you a toast. The triumph of Instinct over Reason"
Reply to
John Larkin

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