Making Chance md stronger

[Mrbeen]

Hi
I am looking to get more depth ,not the sensitivity.

[Mrbeen]

H
I guess I read that 7662 works well up to 22 volts ,no problem.

[Carl-NC]

Depends on who made it. Some 7662 chips are rated for 15V, some at 20V. If you apply 18V to a 15V chip, you will likely cook it.
It is certainly possible to design a high-voltage high-current PI detector for raw depth. It is not always as easy to modify a lesser design to do this. I suggest you start over and design it properly.

[Maurizio2]

Depends on who made it. Some 7662 chips are rated for 15V, some at 20V. If you apply 18V to a 15V chip, you will likely cook it.
It is certainly possible to design a high-voltage high-current PI detector for raw depth. It is not always as easy to modify a lesser design to do this. I suggest you start over and design it properly.

Microchip TC7662A 18V
Microchip TC7662B 15V
Maxim ICL7662 20V
Intersil ICL7662 20V

[Mrbeen]

Hi
yes,I agree Ingersil is a good brand same to maxim but you can't find them here
in my country usually we get cheap Chinese products ,...
I don't turn on the device very much because components may get broken.
specially ic 7662 and/or mosfets (irf 9640)....

[Maurizio2]

Hi
yes,I agree Ingersil is a good brand same to maxim but you can't find them here
in my country usually we get cheap Chinese products ,...
I don't turn on the device very much because components may get broken.
specially ic 7662 and/or mosfets (irf 9640)....

Many chinese integrated circuit are fake. The only solution is to buy them from an official reseller.
An alternative is to order some samples directly from the manufacturer.

[Maurizio2]

Hi
yes,I agree Ingersil is a good brand same to maxim but you can't find them here
in my country usually we get cheap Chinese products ,...
I don't turn on the device very much because components may get broken.
specially ic 7662 and/or mosfets (irf 9640)....

Which voltage are you using? I have read 18V, it is too much. It is better that you don't go over 15V.

[Mrbeen]

Depends on who made it. Some 7662 chips are rated for 15V, some at 20V. If you apply 18V to a 15V chip, you will likely cook it.
It is certainly possible to design a high-voltage high-current PI detector for raw depth. It is not always as easy to modify a lesser design to do this. I suggest you start over and design it properly.

Hi
I don't understand what is the meaning of [ raw depth ] please explain....?
does it mean it won't work properly !!!???
Thanks

[Carl-NC]

You said: "I am looking to get more depth"
If you want PI for depth then design one properly, don't try to modify one that is not up to the job.