Hi everyone.
I'm working on my home heating project for which i need a split air conditioner's outdoor unit.
The problem is that my unit's (Inverter type,single phase 230V) defrosting algorithm is not good and efficient.Reliability is poor too (bad sensor placement,quality) ...
For that reason i want to eliminate my original power module and drive the compressor,fan and 4-way valve with my own electronics.
Writing the control software is not a problem but,i'm not quite sure that i understand how to control the IPM module.
For example this one - PS21867-P (http://www.pwrx.com/pwrx/docs/ps21867-p.pdf)
Am i correct that i need to provide a phase shifted PWM signal with given frequency at Un,Vn and Wn inputs and just power the drivers or not?
Thanks in advance.
I'm working on my home heating project for which i need a split air conditioner's outdoor unit.
The problem is that my unit's (Inverter type,single phase 230V) defrosting algorithm is not good and efficient.Reliability is poor too (bad sensor placement,quality) ...
For that reason i want to eliminate my original power module and drive the compressor,fan and 4-way valve with my own electronics.
Writing the control software is not a problem but,i'm not quite sure that i understand how to control the IPM module.
For example this one - PS21867-P (http://www.pwrx.com/pwrx/docs/ps21867-p.pdf)
Am i correct that i need to provide a phase shifted PWM signal with given frequency at Un,Vn and Wn inputs and just power the drivers or not?
Thanks in advance.