Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

voltage sign obtaining (problem with lm358)

Status
Not open for further replies.
kappa_am

kappa_am

Full Member level 6
Joined
Jul 16, 2012
Messages
331
Helped
19
Reputation
38
Reaction score
19
Trophy points
1,298
Location
Vancouver
Activity points
3,859
I need to obtain voltage sign as input to the control section. I have implemented a circuit every things works well except the LM 358!
I use a LM 358 as a voltage comparator in designed circuit. it has about 700us delay! which seems weird and unwanted! I looked at the datasheet; this delay is not seems natural. what's the probable problem. how can I solve this problem?

Thank you in advance
 

700 us isn't possible in a correct circuit. Largest delay will be generated by output slew-rate of 0.5 v/µs.
 

hi, I know and I am surprised when I saw it on scope. I have attached the pcb diagram. I would be grateful if you take a look, and say your opinion to me.



Thanks
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top