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Any thoughts on the ikea koppla usb power supply? I sort of stuck with it for the price/performance/safety. Here is a teardown (might be dated): https://lygte

• kens 5y ago
  From that teardown, it looks like a solid charger with an unchallenging design. (I.e. they didn't try to make it small.) I think it uses the iWatt 1699 control chip: https://www.dialog-semiconductor.com/products/acdc-conversion/iw1699 https://www.dialog-semiconductor.com/products/acdc-conversio...
  • Daneel_ 5y ago
    Big Clive also did a fairly comprehensive teardown of the IKEA charger and was pleasantly surprised with the design: https://youtu.be/uRe9w5PKmsE https://youtu.be/uRe9w5PKmsE He also confirms that the control chip is a 1699-02.