| ??? 12/07/03 19:42 Read: times |
#60110 - RE: Relay or Triac with uController Responding to: ???'s previous message |
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Muhammad Sajjad wrote: ------------------------------- I want to switch 220V AC power supply through MCU. I have two Options Relay and Triac. Which one will be more good for circuit protection. Sorry Myhammad, but it depends on what you are switching to some extent. If you are just switching a resistive load on and off, and you are doing it at failry low rates, then a relay (+flywheel diode +snubber) will work well. If you are switching an inductive load, ans/or you are switching the load quickly, then you need to think very carefully. A Triac has difficulty switching OFF inductive loads, and you often find you need to use a very much bigger current rated triac than you expected to switch the load. Often TWO thyristors back to back work better. Steve Still in Cairo, with a pair of switching thyristors.... |
| Topic | Author | Date |
| Relay or Triac with uController | 01/01/70 00:00 | |
| RE: Relay or Triac with uController | 01/01/70 00:00 | |
| RE: Relay or Triac with uController | 01/01/70 00:00 | |
| RE: Relay or Triac with uController | 01/01/70 00:00 | |
| RE: Relay or Triac with uController | 01/01/70 00:00 | |
| RE: What you want to do: Sajjad | 01/01/70 00:00 | |
| RE: Relay or Triac with uController | 01/01/70 00:00 | |
RE: Relay or Triac with uController | 01/01/70 00:00 |