Tahmid
Advanced Member level 6
- Joined
- Jun 17, 2008
- Messages
- 4,756
- Helped
- 1,798
- Reputation
- 3,588
- Reaction score
- 1,656
- Trophy points
- 1,413
- Location
- Berkeley, California
- Activity points
- 30,584
Yes. TL494 to drive the Push-Pull. KA3525 to drive the H-Bridge.i know the tl494 is running at very high frequencies,
can i use ka3525 ONLY TO SWITCH THE H-BRIDGE MOSFETS @60HZ IN Order to gain this frequency.
so to refresh i am using both ics TL494 AS THE MAIN IC TO GENERATE PWM
AND KA3525 JUST TO DRIVE THE H-BRIDGE
Using TL494 the circuit is running at high frequencies.Another way to look at it is,
THE CIRCUIT IS RUNNING AT HIGH FREQUENCIES..... USING TL494
HOW DO I GET 50HZ,
hope u undertand where i am going wrong
The 12V from the battery is converted to 345VDC with a power converter circuit.KRYCHEK said:how do i convert a square wave to sine wave to pulse the h- bridge?
A modified sine-wave inverter has a square-wave output with only two steps. Since its frequency is only 50Hz then its stepup transformer is huge and expensive and it is impossible to LC filter into a sine-wave without reducing its power output to almost nothing since the huge and expensive inductor would have a high resistance and will get hot.KRYCHEK said:HI Audio guru
Currently i have designed a modified sinewave inverter
The H-Bridge is powered using 350V, and pulsed using 50Hz, using sg3525
Can you please explain to me, how can i generate 25kHz.....
Then if i pass this frequency through an LC filter, how will i get sine 50hz
An inverter should be tested with an adjustable load resistance. Use the wire from an electric toaster or a heater. Light bulbs draw 10 times their rated power when cold so are a poor load for an inverter. Use Ohm's Law to calculate the resistance.how do i test my inverter?
I mean i need to test it using different load and draw up a graph
150W, 230V
how many ohms do i start off and what value do i finish at
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?