Way forward of H-Bridge inverter/converter common issues

To make inverter/converter with H-bridge configuration, we have to face difficulties with Hi-low side MOSFET/IGBT driver. IR2110 is commonly used driver for this which has issue with heating up and being damaged found in this forum.
Does anyone have any good alternative chip/IC to the H-Bridge issue?

One thing didn't went through in detail on the commonly used-bridge motor driver IC L298N, L293 etc. Can we use these (or similar high power IC) in inverter/converter?

Hi,

IR2110 is commonly used driver for this which has issue with heating up and being damaged found in this forum.

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Heating up and damage of a IR2110 is usually not the problem of the device but wrong design.

IR2110 will work reliably as long as one keeps on the datasheet specifications and the design recommendations.

This is true for any device.

Klaus

samEEEf said:

One thing didn't went through in detail on the commonly used-bridge motor driver IC L298N, L293 etc. Can we use these (or similar high power IC) in inverter/converter?

Click to expand...

The first, maybe, in a small one; the second, unlikely. L298 is 2-46V and 4A, 25W; L293 is 4-36V and 2A, nothing in one datasheet about PD. 293 is poor for thermal performance and is maybe more tiny toy motors than anything serious.

d123 said:

The first, maybe, in a small one; the second, unlikely. L298 is 2-46V and 4A, 25W; L293 is 4-36V and 2A, nothing in one datasheet about PD. 293 is poor for thermal performance and is maybe more tiny toy motors than anything serious.

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Bootstrap part of the IR2110 is the main issue. Is there any driver having high current rating similar to motor controller?

Hi,

Bootstrap part of the IR2110 is the main issue. Is there any driver having high current rating similar to motor controller?

Click to expand...

Please give more detailes:
What´s exatly the problem with the bootstrap part?
What current rating do you need?

Klaus

Up to 50-70kHz the IR2110 is a good device, esp if buffered by an emitter follower pair on each output, for motor drive apps, you need to turn all the lower devices on 1st to charge the upper devices boot-strap caps for their gate drive psu ckts AND during normal operation the lower devices must be on for long enough (~5-10uS) every 100 - 200uS or so to re-charge the upper bootstrap caps for proper operation, else the UVLO in the upper devices will prevent the upper gate drive from coming on...

alternatively you can have small isolated supplies powering the upper gate drive parts ( a separate one for each )...