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The linked video of how bridge rectifier works is enlightening, funny and terrifying. Makes me glad I'm a software developer and not an electrical engineer so I

• SAI_Peregrinus 10y ago
  ElectroBOOM's videos are all like that. It's a comedy channel.
• wrigby 10y ago
  His videos are extremely entertaining, but his disregard for safety exaggerates the danger a little bit. My understanding is that most bridge rectifiers are put in a circuit after a step-down transformer, so they're operating on a much lower AC input voltage. Also, don't wrap the safety ground pin on test equipment with kapton tape. Just don't.
  • hatsunearu 10y ago
    They can be, and they are in certain linear PSUs. Linear PSUs generally make ripply DC with linear power transformer -> rectifier and then use active linear analog circuits to get clean DC power. Has very low efficiency but exceedingly low noise. For most consumer things, you use a classic switch mode power supply design. You bridge rectify mains directly, and you switch that really fast to get the DC you need, and you filter it a lot.