Mercury
Member level 3
![Member level 3](/styles/images/ranks/dlevel3.gif)
boost converter
Hello,
I'm designing a boost converter and I'm trying to use a mosfet instead of the diode. Here's the basic idea:
Well, this doesn't work, as the M3 mosfter conducts current in both directions regardless of the drive signal. I suppose this is because of the integrated diode. I have seen mosfets used instead of diodes, but this doesn't seem to work in this case. Is there anything that I could do?
Best regards!
Hello,
I'm designing a boost converter and I'm trying to use a mosfet instead of the diode. Here's the basic idea:
![10pmzrt.png](https://i43.tinypic.com/10pmzrt.png)
Well, this doesn't work, as the M3 mosfter conducts current in both directions regardless of the drive signal. I suppose this is because of the integrated diode. I have seen mosfets used instead of diodes, but this doesn't seem to work in this case. Is there anything that I could do?
Best regards!