Tagged Questions
5
votes
3answers
3k views
When should I fire the TRIAC's gate when controlling an inductive load (AC motor)?
I'm using a combination of opto-triac + TRIAC to control a 230V AC motor with a microcontroller. For detecting the zero-crossing of the voltage I'm using another optocoupler.
I know that the AC ...
1
vote
1answer
505 views
Is this galvanic isolation?
I'm doing a project which consists of 2 big parts: a control part (a microcontroller with I/O pins expanded, USART-to-USB, a RTC, an EEPROM, a LCD) working @ 5V and an actuators part (optocouplers for ...
8
votes
3answers
10k views
How to drive a MOSFET with an optocoupler?
What's the proper schematic for driving this MOSFET from a microcontroller pin through this or this optocoupler?
The MOSFET will drive a motor @ 24V, 6A.
