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| Name | Limiting Inrush Current with NTC and PTC Themistors |
| Video Uploader | Video From Ametherm |
| Upload Date | This Video Uploaded At 26-10-2015 14:51:17 |
| Video Discription | Learn how to limit inrush current using NTC and PTC thermistors in this presentation by Ametherm. Read the entire article here: http://www.ametherm.com/inrush-current/ptc-thermistors-for-inrush-current-limiting Presentation Overview: Many applications today, including industrial machinery, power tools and other high current equipment, use limiting inrush current as a major design consideration to combat the problematic effects of inrush current. Inrush current occurs when a system powers on and experiences a spike in current. This current can be substantially higher than standard operating current. If not properly managed, it can reduce the effective operating life and impose damage to equipment. For example, inrush current could disable a cooling fan, eventually leading to total system failure. Applications that are switched on and off quickly, such as welding equipment, present a particular concern for limiting inrush current. The limiting inrush current circuit must reset instantaneously during each power on to protect the system. This further complicates the management of inrush current. NTC stands for Negative Temperature coefficient. The NTC thermistor provides variable resistance based on temperature. As temperature increases, the resistance drops from high to low and allows current to pass through. PTC stands for Positive Temperature Coefficient. The PTC thermistor also provides variable resistance based on temperature. As temperature rises, resistance increases from low to high and blocks inrush current. Typically, NTC-based limiting is used for most applications. However, there are certain scenarios that require a PTC thermistor over an NTC thermistor. These include equipment with a near-zero reset time, extreme temperature conditions, and systems that experience frequent shorts. Thanks for watching! Subscribe to our channel for more informational videos: https://www.youtube.com/channel/UCBAngj9RE8F5G2KYT-kSxtw Visit our website to ask a question or request a sample: http://www.ametherm.com Read our latest blog post at: http://www.ametherm.com/blog/ Connect with us on social media: Facebook: http://www.facebook.com/ametherm Twitter: http://www.twitter.com/ametherm LinkedIn: https://www.linkedin.com/company/3825619?trk=tyah&trkInfo=clickedVertical%3Acompany%2CclickedEntityId%3A3825619%2Cidx%3A1-1-1%2CtarId%3A1443809910712%2Ctas%3Aamether Google+ https://plus.google.com/+Ametherm/about U_0trB4ObwE |
| Category | Science & Technology |
| Tags | Inrush Current | Thermistor | Inrush Current Limiter | PTC Thermistor | NTC Thermistor | Surge Current |
