Hi All,
I've developed a MOSFET full wave bridge rectifier. When the MOSFETs are fully on it rectifies beautifully. For my test conditions i used comparitors to turn them on when required. In real life MOSFET drivers are used. The reason for me using MOSFETs in the first place is because i wanted to rectify low AC voltage (1RMS to 12RMS). This is my system input voltage range. Turning these MOSFETs on are a problem at low voltages. I'm battling at high voltages as well.
The sine wave has a positive cycle and a negative cycle. During the postive cycle I wish to turn on two sets of MOSFETs, and during the 2nd half I wish to turn on the second set. This means that the driving signal needs to be synchronised with the input sinusiod. The input is a varying 1-12Vrms signal at 50Hz. Can anyone suggest a driving signal for the MOSFETs?
Looking at conventional MOSFET drivers, I don't think they will work.
Are there any suggestions?
Thanks
Ivy
I've developed a MOSFET full wave bridge rectifier. When the MOSFETs are fully on it rectifies beautifully. For my test conditions i used comparitors to turn them on when required. In real life MOSFET drivers are used. The reason for me using MOSFETs in the first place is because i wanted to rectify low AC voltage (1RMS to 12RMS). This is my system input voltage range. Turning these MOSFETs on are a problem at low voltages. I'm battling at high voltages as well.
The sine wave has a positive cycle and a negative cycle. During the postive cycle I wish to turn on two sets of MOSFETs, and during the 2nd half I wish to turn on the second set. This means that the driving signal needs to be synchronised with the input sinusiod. The input is a varying 1-12Vrms signal at 50Hz. Can anyone suggest a driving signal for the MOSFETs?
Looking at conventional MOSFET drivers, I don't think they will work.
Are there any suggestions?
Thanks
Ivy