trouble with IR2011 2110 spice subckt - diyAudio
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Old 22nd December 2009, 06:03 PM   #1
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Default trouble with IR2011 2110 spice subckt

hello.

trying to simulate a discrete D amp with LTspice,i've found some model of IR2011 and IR2110.

these two models need to be tie at ground in simulation,but in reality to -Vcc.

so it's impossible to make the simulation working.

i've try to connect the chip in different way,but nothing get a normal behaviour.

the only way is to use IR2011 and IR2110 connect to ground in LTspice but modulator with level shifting cannot be insert in the schematic...

maybe someone knows a way to make it working ?
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Old 22nd December 2009, 07:10 PM   #2
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too late now...

IR2011.sub is working perfectly,even with 1nS step simulation.
thanks to analogspice to make this model

still problem with IR2110 from IR (it's working with ground as reference)

but chip are similar (except prop time...).

simulation looks a good base to design D amp (UCD like).

any feedback for use IR2110 in LTspice ?
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Old 30th December 2009, 12:03 AM   #3
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the LTspice schematic

UCD like with IR2011
Attached Files
File Type: zip ucdlike-10.zip (6.1 KB, 424 views)
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Old 30th December 2009, 06:07 PM   #4
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some of FFT

i've start to design a double side PCB,still checking for a good topology,this is in a good way...
500 VA 2x30 V ac ,double slow rectifier bridge ,irf540n output mosfet at first try.

comparator will be lm360,op amp ne5532 and IR2110 as mos driver

Click the image to open in full size.

Last edited by thierry38efd; 30th December 2009 at 06:36 PM.
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