Questions about inverter design

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m.heshmat

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i want to design single phase inverter (220V-10A) and i need some help

1- the output of my inverter as shown
how can i made it pure sin wave ? ( i want how to design Lc filter )


2- Is it Necessary to use optocouplers in my circuit ??
if it necessary , what type can i use and where can i put in circuit (between microcontroller and IR2110 ??)

3-when i feed the 4 igbt with 24 Vdc , what transformer can i use to step up the voltage to 220 Vac and what is price ??

4-if i feed the 4 igbt with 220Vdc , is the igbt work properly

5-i need a protection for my circuit , what devices can i use for this ?
 

To make a working 2200 watt sine wave inverter is a huge task.

At the bottom of this page if a list of threads with related titles. By clicking them you may find threads which discuss how to build an inverter such as you describe.

- - - Updated - - -

To make a working 2200 watt sine wave inverter is a huge task.

At the bottom of this page if a list of threads with related titles. By clicking them you may find threads which discuss how to build an inverter such as you describe.
 

1) The inductor will be between H-bridge output and load (in series with load). The capacitor will be across the load (in parallel with the load). Just Google "LC filter". https://www.google.com/search?hl=en...5.4j3j1.8.0.les;..0.0...1c.1.5.hp.W8Zlq-t8eMU

2) This depends on your requirement of isolation, your design and implementation.

3) You need to use a 50Hz iron core step-up transformer. The primary:secondary ratio will be about 20V:350V. Price will depend on your location. But it won't be cheap.

4) You can use the H-bridge with high voltage, obviously. For 220VAC output, the DC rail should be at least 320V.

5) It depends on specifically what type of protection you need.

Hope this helps,
Tahmid.
 

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