MrHeckles Posted December 11, 2005 Report Share Posted December 11, 2005 Hi guys. I have constructed this circuit.Everything seems to work as expected, except for one small problem. The high output of both the IR2184 drivers is not high enough. I ran into this problem with an earlier circuit (also posted) and was helped to solve it by decoupling the driver between Vcc and Ground. However this has not fixed the problem in this case.The low output is fine, and is turning on the lowside mosfets well. However the high output is only putting out about 1v to the highside mosfet gates.The PWM generator is running at about 25kHz.Any suggestions?Please. Quote Link to comment Share on other sites More sharing options...
audioguru Posted December 11, 2005 Report Share Posted December 11, 2005 EEK! A fuzzy Jpg. Please attach schematics as clear GIF or PNG file types.The Vb pins are dynamic and opposite each other. Download this pic to be clearer. This way should work: Quote Link to comment Share on other sites More sharing options...
MrHeckles Posted December 11, 2005 Author Report Share Posted December 11, 2005 Heh heh, okay no more fuzzies from me.Thanks audioguru I'll give it a try.BTW, where in Canada do you reside? Quote Link to comment Share on other sites More sharing options...
audioguru Posted December 11, 2005 Report Share Posted December 11, 2005 I live here somewhere: Quote Link to comment Share on other sites More sharing options...
MrHeckles Posted December 11, 2005 Author Report Share Posted December 11, 2005 On a boat? Quote Link to comment Share on other sites More sharing options...
audioguru Posted December 12, 2005 Report Share Posted December 12, 2005 On a boat?I'm joking.My wifey and I frequently go to the walkway there to walk our dog. Some of the boats are huge and very expensive. ;D Quote Link to comment Share on other sites More sharing options...
MrHeckles Posted December 12, 2005 Author Report Share Posted December 12, 2005 Super yachts aye?Made the changes you suggested. Works a treat now. Many thanks Quote Link to comment Share on other sites More sharing options...
audioguru Posted December 12, 2005 Report Share Posted December 12, 2005 Horray, you fixed it! ;D Quote Link to comment Share on other sites More sharing options...
login
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.