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yes in the DC to DC converter, there are some ripples. but I checked the dc to dc converter seperatly and it was fine withoud any voltage drop or regulation but only when it is connected to the h-bridge the voltage drops.
Greetings.
Trying to make a sine wave inverter.
Sinusoidal PWM, an mbed driving an H-bridge with two IR2186 at 20KHz
the outputs from the mbed are clear half sinewaves but the output without the filter has distortions every cirtain time
(the code)
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The power source is 70v from DC to DC converter, and the mosfet drivers are fed with 20KHz PWM from mbed microcontroller, the Inverter is designed to handle 100watt, the question is why when I increase the load, the output signal is distorted. and ripple occure in the DC bus voltage (even when I...
I have a project that inverts DC to AC. I have a problem as I increase the load, ripple occure in the DC bus voltage and the output signal become distorted.
this is the circuit diagram
thank you,
"It should be designed to resonate at a higher frequency than your switching frequency." why?
The cutoff frequency for the filter is -1/2pisqrt(LC)- about 300Hz.
If I connect ceramic capacitors rather than non-polorized Electrolytic Capacitor , it did not draw current .
Hello
I am working on a project of a 100 watts pure sine wave inverter, using DC to DC converter (push-Pull topology) as a supply for the H bridge (from 24 to 80 V ), the H bridge is controlled using mbed microcontroller. everything works fine till I connect the LC filter it draws large amount...
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