У нас вы можете посмотреть бесплатно How to Pass Conducted EMC and Immunity. 5 Tricks или скачать в максимальном доступном качестве, видео которое было загружено на ютуб. Для загрузки выберите вариант из формы ниже:
Если кнопки скачивания не
загрузились
НАЖМИТЕ ЗДЕСЬ или обновите страницу
Если возникают проблемы со скачиванием видео, пожалуйста напишите в поддержку по адресу внизу
страницы.
Спасибо за использование сервиса ClipSaver.ru
Conducted emissions are common on electrical equipment. There are voltage transients, surges and harmonic distortion on mains too. In this video I will offer 5 personal tricks that I use all the time to prevent issues with conducted EMC and immunity. A quick note about PFC: as it provides AC rectification itself, when you add a PFC into an existing circuit, the VFD input stage will have a fixed DC input (~380V). This means that the rectifying diode bridge in VFD will simply pass the current with a slight voltage drop, without doing any rectification. In the video, I made it sound slightly abmbiguous, I think. You can read about PFC and its improvements on harmonic distortion here: https://www.ti.com/seclit/ml/slup390/... Standards mentioned in this video: EN61000-3-2 (Voltage Harmonics): https://webstore.iec.ch/publication/2... EN61000-3-3 (Voltage Flicker) https://webstore.iec.ch/publication/6... EN61000-3-11 (Voltage Interruptions) https://webstore.iec.ch/publication/2... EN61000-4-2 (Elecrtostatic Discharge) https://webstore.iec.ch/publication/4189 EN61000-4-4 (Burst Testing) https://webstore.iec.ch/publication/4222 EN61000-4-5 (Surge Testing) https://webstore.iec.ch/publication/4223 EN61000-6-3 (Residential Emissions) https://webstore.iec.ch/publication/2... EN61000-6-4 (Industrial Emissions) https://webstore.iec.ch/publication/2... TIMELINE: 00:00 - Start 01:00 - 1. Differential and Common Mode Noise 01:57 - 1.1 EMI Filter 02:41 - 1.2 DM and CM Noise Filtering 03:55 - 2. Ground Loops 04:55 - 2.1 Galvanic Isolation 05:57 - 2.2 PCB Scissor Rule 07:19 - 2.3 Isolation Components 07:42 - 3. Inrush Current 08:52 - 3.1 Thermistors 10:13 - 3.2 Inrush Current Management 11:03 - 4. Voltage Surges and Transients 12:51 - 4.1 Varistors 13:39 - 4.2 Crowbar Clamping Circuit 14:16 - 4.3 Voltage Harmonics 15:17 - 4.4 Power Factor Correction 16:45 - 5. Electrostatic Discharge 18:15 - 5.1 TVS Diode Placement 18:57 - 5.2 Metalwork Connection 21:09 - Video Summary