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Do you get a sensation from switching power supplies vs transformers? Or is the frequency in a switching power supply too high to sense? (I've been studying pow
by kens 15y ago
Do you get a sensation from switching power supplies vs transformers? Or is the frequency in a switching power supply too high to sense? (I've been studying power supplies a lot lately, so I'm curious.)
Tangentially on the topic of MRI safety, there's a fascinating story of a police officer who got too close to an MRI. The magnet yanked the gun out of his hand and the gun went off despite the thumb safety being engaged. (Nobody was hurt and the MRI received only superficial damage.) Apparently the strong magnetic field pulled the firing pin block out of the way, allowing the gun to go off. Details: http://www.ajronline.org/content/178/5/1092.full http://www.ajronline.org/content/178/5/1092.full
- AkThhhpppt 15y agoThinkpad switch-mode power supplies give almost no sensation, but I have gotten a distinct (and pretty distinctive) "buzz" from a Dell power supply. I'll point out others seem to be much more sensitive than I, as well (see jaa's comment, below; he can feel power cables. I can't). So the answer is... it depends? ",)