hi
I am making a single-phase inverter with a dc-dc boost converter for my project and with an aim to make it to 1 kw rating and 230 V, 50Hz rms using dc power supply in the lab with 175V and 10A supply.
I followed guidelines given in 6N136, IR2110 and AN-978 , DT97-3 datasheets and kept Rgon=15 Ω and Rgoff=8.2Ω using anti-parallel diode across Rgon and made individual driver circuits for all switches.
MOSPETS used : STW20NK50Z
Switching frequency: 10KHz
PWM pattern: Sine
Initially i made the inverter circuit and tested with low input dc voltage around 12V and measured output of inverter circuit i found still ringing effect and switching noise more than double the input dc voltage. some screen shots of output waveform are given as attachments.
kindly let me know where i am doing mistakes.
Thanks in advance.
Chandra Shekar
I am making a single-phase inverter with a dc-dc boost converter for my project and with an aim to make it to 1 kw rating and 230 V, 50Hz rms using dc power supply in the lab with 175V and 10A supply.
I followed guidelines given in 6N136, IR2110 and AN-978 , DT97-3 datasheets and kept Rgon=15 Ω and Rgoff=8.2Ω using anti-parallel diode across Rgon and made individual driver circuits for all switches.
MOSPETS used : STW20NK50Z
Switching frequency: 10KHz
PWM pattern: Sine
Initially i made the inverter circuit and tested with low input dc voltage around 12V and measured output of inverter circuit i found still ringing effect and switching noise more than double the input dc voltage. some screen shots of output waveform are given as attachments.
kindly let me know where i am doing mistakes.
Thanks in advance.
Chandra Shekar
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