problem with source isolation from sim548c

[Afzal hossain]

hi
I am using LM-2576 to get 4 to 4.2v to run my mcu and sim458c.I want to isolate sim548c module from source by switching.Is there any IC which i can use to isolate sim548c from input and which will take lass place in my circuit board.please help me to get around this problem.

 

[nxt_]

why you want to isolate between the GPS/Gsm module?

---------- Post added at 17:33 ---------- Previous post was at 17:20 ----------

i mean between the source and the module

 

[Afzal hossain]

hi nxt_
yes, I need to isolate source and the module while it is required.Please help me if you have any suggestion.

 

[GSM module]

hi
I am using LM-2576 to get 4 to 4.2v to run my mcu and sim458c.I want to isolate sim548c module from source by switching.Is there any IC which i can use to isolate sim548c from input and which will take lass place in my circuit board.please help me to get around this problem.

View attachment RTR025P02.pdfView attachment RTR025P02.pdf

Hi friend,

You can use attached switch to isolate SIM548CZ module. We focus on technology about SIMCOM modules for more than 7 years, welcome to contact me by email if you have any further questions.

Email: carolyn.yuan*haozetech.com
carolynyuan1*gmail.com

 

[nxt_]

For electrical isolation we usually use, opto couplers. meaning; electronic device designed to transfer electrical signals by utilizing light waves to provide coupling with electrical isolation between its input and output".[1] The main purpose of an opto-isolator is "to prevent high voltages or rapidly changing voltages on one side of the circuit from damaging components or distorting transmissions on the other side."[2] Commercially available opto-isolators withstand input-to-output voltages up to 10 kV[3] and voltage transients with speeds up to 10 kV/μs.

Opto-isolator - Wikipedia, the free encyclopedia