Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Anyone can teach me how to use optocouple to control high current DC LOAD? Please me the circuit design....
IanP said:Do you think of "linear" control or just On/Off?
And, how big is the load (voltage/current)?
Here is an example of 10A switch:
h**p://www.phoenixcon.com/products/interface/db/datasheets/DEK-OV-10A.pdf
Regards,
IanP
IanP said:A1 is the logic signal
A2 is the logic 0V (GND)
A is (+) of the DC supply
Load goes between (-) and (0)
As MOSFET you will have to use a P-Channel power MOSFET with low Rds(on).
For example: IRFP9140 200V, 40A, Rds(on)=0.04Ω
Regards,
IanP
Ya i decide to use uC to control. So, the DC output current draw is depent our P type MOSFET support is it? Why we dont use normal transistor... to drive it, what the advantage for MOSFET and what the disadvatage for transistor?
* i need to comfirm again, we are using N or P type because your drawing is N-type?