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If they actually cared about energy quality and equipment protection, they would check and protect on electric criteria at the plug, not add an electronic signa
by nraynaud 11y ago
If they actually cared about energy quality and equipment protection, they would check and protect on electric criteria at the plug, not add an electronic signature.
- ghshephard 11y agoI don't know which, "they" you are referring to here - the end customer, the standards body, the charger manufacturer, or the manufacturer of the equipment being charged? The customer quite often just wants the cheapest price, the charger manufacturer doesn't care about anything other than selling lots of chargers, the two groups that do care, the Standard Body, and the manufacturers of the equipment being charged do care about energy quality and equipment protection. In the case of the manufacturer of the equipment being charged - you are right, they can take steps to protect their equipment, but it costs a bit of money to engineer a subsystem to detect a 100 watt charge and protect the upstream gear - likely cheaper just to query and confirm that the downstream device is certified and then trust it (somewhat). You still need the protection (defense in depth) - but starting off with certified chargers certainly helps. The standards body, really has every incentive to ensure that the only certified vendors can manufacture chargers that will be (broadly) accepted.