Pure sine wave inverter suggestions?

rlw999 wrote:

Kayteg1 wrote:

Lot of people are skeptic about cheap Chinese stuff, but guess where is manufactured the expensive stuff, even when it has "assembled in USA" label?

There's a reason why the cheap Chinese stuff is cheap -- Chinese manufacturers can do first rate work when they are paid for it, but often times, they are asked to make things as inexpensively as possible.

For example here's a teardown of a genuine apple USB charger

And here's a teardown of a cheap knockoff

Those are excellent examples ! (Probably a bit too geeky for the average person)

First, you have to start with a "robust" design. My bet is, Apple did the design not the company manufacturing it. Apple has engineering facilities all over the world so we will never know exactly where the design originated, but it was clearly reviewed by many highly technical people.

Second, you need quality sub-suppliers. About 10-20 years ago there was a major problem in the electronics industry. Many low cost, sub-standard capacitors (a key component in all electronics) were being used. They worked fine for a couple of years and then died, killing expensive electronic device. Yes a 10¢ device kill a $50+ device because they should have used a 25¢ device !

Third, in order to get good product, you need quality control. All the way from the assembly line to incoming inspection at the central distribution point.

Fourth, you need quality assurance. A system that assures that all of the quality control measured are being taken and corrective actions happen when quality slips.