Hi
I am working on a large volume project for a client. Due to the FDA approval I need to go into details with the H-Bridge.
I have downloaded the newest (and only) PSpice model DRV8837 PSpice Model (Rev. A) "SLVM958A.ZIP (18 KB) - PSpice Model"
Analyzing the sub circuit for H-bridge the output from the "MOSFET" equations result in 0 which does not reflect reality.
I need a model that reflects the actual current paths for coasting and brake conditions
Meaning current from a motor coil must go
1) back to VM terminal (via the reverse diodes) for coasting
and
2) circulate in the two low side switches in brake mode.
I desperately need your experts to update the model
NB. The model also lack the deadtime simulation as the datasheet does not specify any information on this,
Thanks