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short circuit with HVP-MC3PH

Question asked by Leon Thürnau on Nov 13, 2017
Latest reply on Nov 14, 2017 by dumitru-daniel.popa

Hi,

 

is it possible to get a short circuit while using the eFlexPWM independant block and powering the HVP-MC3PH board with a high input voltage 300V DC ?

 

With the independant block I'm principle able to generate signals for driving both igbt from one phase.

For example igbt high side (PWM0) and igbt low side (PWM1) are turned on at the same time.

This you can measure at the J10 connector.

If I now connect a high voltage to the board the +15V voltage is available which is VCC for the 3 phase driver.

So there would be a short circuit or is there any further protection ?

 

The FNB41560 has a short-circuit protection (PSP), but with that you detect an existing short circuit at pin10 (CSC).

I want to know if it is possible to turn on both igbt from one phase at the same time.

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