rana_tdm
Newbie level 4

I am a hobbiest. i am trying to design an DC to AC tranformerless inverter. i have connected 20 13.8v 7A dry batterise in series to get around 220 v DC. I found a circuit of IRS2453 Mosfet driver IC on a website.

I completed the circuit using four IRF840 and a 7815 regulator for 15 v supply to the IC. I connected the ground in common and connected 7815 positive input to the second battery in the series providing 24v to 7815. the positive 220v DC was connected to the drains of high side mosfets. the circuit started producing around 250vac. i connected some load around 500 watts. all was well for about 10 minutes. i continuosly wathed the mosftes but they were not exessivelt hot. and than a blow..... the Rt was 1M and Ct was 10n....please help me ...was it a test ciscuit only...i am unable to find another circuit on this IC IRS2453 with some kind of overload protection and safety....please someone give me some guidlines for this

I completed the circuit using four IRF840 and a 7815 regulator for 15 v supply to the IC. I connected the ground in common and connected 7815 positive input to the second battery in the series providing 24v to 7815. the positive 220v DC was connected to the drains of high side mosfets. the circuit started producing around 250vac. i connected some load around 500 watts. all was well for about 10 minutes. i continuosly wathed the mosftes but they were not exessivelt hot. and than a blow..... the Rt was 1M and Ct was 10n....please help me ...was it a test ciscuit only...i am unable to find another circuit on this IC IRS2453 with some kind of overload protection and safety....please someone give me some guidlines for this