i need circuit diagram for tens

Status
Not open for further replies.
A

andria

Newbie level 4
Joined
Jun 6, 2010
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
isreal
Activity points
1,310
can u help me i need a design for tens unit
 

Transcutaneous electrical nerve stimulation ..

---------- Post added at 19:11 ---------- Previous post was at 19:02 ----------

who can help with ir2155???
 

Do you have a specific question? How to connect it or how to calculate RC values?
 

The oscillation function is very simillar to famous LM555 circuit 555 timer IC - Wikipedia, the free encyclopedia
In page 4 of ir2155 datasheet you can see a block diagram.
So comparators set a comparison window and when voltage go above it, capasitor changing from charging to discharging state and all over again...
 

what's the use of the 2mosfet ??and what's the diferent between it and 2110???
 

If you are talking about Mosfets Q1 and Q2 in your drawings: they are the powerMOS that will deliver signal to your load. IR2110 is there in order to drive those Mosfets. In simple words, when using PowerMosfets you need some more sophisticated circuit in order to switch it on and off.
As you can see there internal push-pull output stages inside the IR2110 that drive gate inputs of the Q1 and Q2.
 

You can see this simple circuit:

**broken link removed**



TR1 trafo you can buy in market its 1:10 ratio.

You can build all in SMD, this can be very small, biggest parts are battery and maybe transformer.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…