I need to boost an analoug 0 to 10vdc input. When I try to use this signal to speed control VFD,S it can only handle 2 before voltage drop due to the resistance the VFD input, so I if use the incoming 0 to 10vdc to a dual op amp it can drive more tandem VFD,S especially if it had a high current output.

This statement does not make sense. If you need to control multiple drives and there is not enough current available then use multiple op-amps, one per drive, connected as unity gain voltage followers.

 

Max 24vdc but was thinking of including a 12vdc or 15vdc regulator in circuit, can not use negative rail only o to 15vdc max

I tried simulating @schmitt trigger's suggestion with the NPN output stage and an LM358, in case the LM358 is easier for you to source. With a 12V supply, it couldn't quite reach the full 10V output. However, with a 15V supply, it looks like it would work great, and can source lots and lots of current this way. Alternately, if you do manage to find the LMC6482 more easily than the LM358, it will work equally well on a 12V supply or a 15V supply.

Anyway, @MisterBill2 may be right that separate voltage followers for each output would make more sense, but if you do want just a single circuit driving multiple outputs, I imagine this one would do it. Note that I've added a resistor between the op amp and the NPN to protect the opamp output in case the circuit output gets shorted accidentally, although I don't know if it's really necessary.

 

Thank you for those that answered my post with constructive comments. You pointed me in the right direction I found the right op amp I can get locally and tested it on a tag board, added the other bits i needed and just finished designing the PCB

 

Thank you for those that answered my post with constructive comments. You pointed me in the right direction I found the right op amp I can get locally and tested it on a tag board, added the other bits i needed and just finished designing the PCB

Congrats! I'm glad it worked out.

Which op amp did you end up choosing? And are you using its output directly, or with some sort of additional transistor output stage? There were so many options discussed - I'm curious which solution ultimately did the trick.

Regardless of the details, I'm glad you've got a solution!

 

I did some tests on VSD,S they needed 6mA each so by using a LM358 just as it is I have 40 mA output per op amp and if it is over driven it does not get damaged, allowing for a bit of spair I am calling it 30 mA and using the second op amp to drive a run lamp so it can drive 5 VSD,S and I was going for four. I did like ebeowolf17,s 200 mA driver and will give it a try for a larger unit I will need for a similar design I need. Thanks all.