dexterbot80
Member level 1
Hello,
I want to control the speed of a woodcutter that is equipped with an asynchronous three-phase motor 400V 6000 RPM 6KW.
From the searches I came to the conclusion that a VFD would successfully solve my problem so I decided to build one.
**broken link removed** seems to me the simplest solution for adjusting the frequency - I tested this circuit and obtained a three-phase sinusoidal signal.
This is the control circuit
This is the gate driver circuit
Please help me to better understand how the control circuit works and tell me if the electronic circuit is correct.
Basically, I have to get 6 Hi / Lo signals that will command the three-phase IGBT bridge.
Thank you
I want to control the speed of a woodcutter that is equipped with an asynchronous three-phase motor 400V 6000 RPM 6KW.
From the searches I came to the conclusion that a VFD would successfully solve my problem so I decided to build one.
**broken link removed** seems to me the simplest solution for adjusting the frequency - I tested this circuit and obtained a three-phase sinusoidal signal.
This is the control circuit
This is the gate driver circuit
Please help me to better understand how the control circuit works and tell me if the electronic circuit is correct.
Basically, I have to get 6 Hi / Lo signals that will command the three-phase IGBT bridge.
Thank you