Don't even think about discrete component solutions unless you plan to make a million of these.
Let engineers who specialize in this solution do all of the hard work for you.
I have been using these for many years to do exactly what you are intending.
BTS410E2 PROFET HIGHSIDE POWER SWITCH https://www.infineon.com/dgdl/Infin...n.pdf?fileId=db3a304331c8f8560131dcc9fc520e21
They are reliable, robust (almost indestructable), easy to use, and for most applications require no external components including flyback diodes. If you have a micro then you can get diagnostic information from them too (open, short, overtemp, etc.).

 

Is it look correct?


Note : I have connected motor instead of a solenoid

 

You would need a logic level Mosfet? IRL540 etc.
Max.

 

You don't show a flywheel diode across the load

 

You would need a logic level? IRL540 etc.
Max.

I bought the wrong mosfet IRF540N

 

Looks that way!
Max.

 

Looks that way!
Max.

I have BC139 and BC140 available on the table

Will it use for the following circuit?

 

A typical Darlington arrangement.
Max.

 

A typical Darlington arrangement.
Max.

View attachment 172589

Which transistor are you using in the circuit? BC140 or BC139 ?

 

These are TIP120 but most power Bi-polar will work.
Max.

 

These are TIP120 but most power Bi-polar will work.
Max.

I have tip127. Will it work?

 

It should! Try it.
Max.

 

You would need a logic level Mosfet? IRL540 etc.
Max.

I didn't find IRL540 but I found following SSR that could be work

Does pic16f877a can drive That SSR?

Do you see any wrong connection in my image?

 

and the below circuit for two loads

 

I usually use Active high for switching the Micro.
IOW, take the term4 to GND and switch term3. high.
I see you are doing that now.
Max.

 

I usually use Active high for switching the Micro.
IOW, take the term4 to GND and switch term3. high.
I see you are doing that now.
Max.

Hello Max.. I have updated image

so I think there will be no problem in the connection of both images

 

I would like to drive some solenoid valves (about 450mA at24VDC) with a PIC 16f877A. The idea is that the solenoid valves must open and close very fast . I just spent time on the internet and found I could use Relay SSR, opt coupler, MOSFET etc to drive solenoid valves. I could not decide the best driver circuit for my requirement

What do you think from your experience What would you recommend to drive solenoid valves for fast switching?

looked on the internet search many say optocoupler is a good choice, Is it a good choice?

Edit : I assumed response time of solenoid valves is less then 10ms

No, actually you don't want to drive a solenoid at all. Solenoids are inductors, which mean they are current devices, which mean they are FIELD devices. In other words, they take time to charge up because it has to build a field to activate movement.

Use a power transistor instead. Many exist. Use a snubber diode in parallel with the load to protect the transistor. Your load isn't much, you could use a 2N2222 as your switch, controlled by the PIC with a 720 Ohm resistor on the base (probably two 360-Ohm resistors in series). You can use a 1N4002 as your snubber diode.

 

No, actually you don't want to drive a solenoid at all. Solenoids are inductors, which

Use a power transistor instead. Many exist. Use a snubber diode in parallel with the load to protect the transistor.

Just for experiment Can I do that, because the suggested material is not in my hand yet

 

Just for experiment Can I do that, because the suggested material is not in my hand yet

Those SSR show a switching speed of turn on of 2.5ms and a turn off of 40μs.
They have a Mosfet output device.
Max.

 

Those SSR show a switching speed of turn on of 2.5ms and a turn off of 40μs.
They have a Mosfet output device.
Max.

I should try this yes or no
Do you see something wrong in connections?