Power Products Frequently Asked Questions
Power Products Frequently Asked Questions
| Question | What is the difference between switching and linear power supplies? |
| Answer | The main difference is how they convert the AC line supply voltage to DC output volage. Switched-mode (switching) power supplies first rectify the AC line supply, and then transform it. Linear power supplies first transform the AC line supply, and then rectify it. Switching power supplies have better efficiency, less heat loss, wider input voltage ranges, smaller size and weight, and are intended for general use in automation. Linear power supplies have less harmonics, and (if regulated) have more precise output regulation. |
FAQ Subcategory:
This item was last updated on 02-16-2004
Document ID: 853
The information provided in the AutomationDirect knowledge base is provided "as is" without warranty of any kind. AutomationDirect disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall AutomationDirect or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if AutomationDirect or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion of limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.