Swend
Full Member level 4
- Joined
- May 14, 2019
- Messages
- 237
- Helped
- 10
- Reputation
- 20
- Reaction score
- 9
- Trophy points
- 18
- Location
- Roskilde, Denmark
- Activity points
- 2,304
Hi friends!
I made a simple diode bridge rectifier, except that each diodes is made up of ten STTH812 in series, and those are ultrafast 1200V 8A diodes with 100nS rrt and 400nS frt. But it doesn't seem to want to rectify properly please see below oscillograms and multiply v/div by 1000 to get the correct voltage.
INPUT__________________OUT 100Mohm load___________OUT 30Kohm load
![SDS00001.png SDS00001.png](https://www.edaboard.com/data/attachments/85/85487-0d6f6bf11f2ebaa1f146f13c907bd38b.jpg)
![SDS00003.png SDS00003.png](https://www.edaboard.com/data/attachments/85/85489-1817945c3ed54cf564d789f87050ee9b.jpg)
![SDS00002.png SDS00002.png](https://www.edaboard.com/data/attachments/85/85491-1b60be0273b06388fec2917eec3fde41.jpg)
I can't figure what is going on here and why it won't work.
I made a simple diode bridge rectifier, except that each diodes is made up of ten STTH812 in series, and those are ultrafast 1200V 8A diodes with 100nS rrt and 400nS frt. But it doesn't seem to want to rectify properly please see below oscillograms and multiply v/div by 1000 to get the correct voltage.
INPUT__________________OUT 100Mohm load___________OUT 30Kohm load
![SDS00001.png SDS00001.png](https://www.edaboard.com/data/attachments/85/85487-0d6f6bf11f2ebaa1f146f13c907bd38b.jpg)
![SDS00003.png SDS00003.png](https://www.edaboard.com/data/attachments/85/85489-1817945c3ed54cf564d789f87050ee9b.jpg)
![SDS00002.png SDS00002.png](https://www.edaboard.com/data/attachments/85/85491-1b60be0273b06388fec2917eec3fde41.jpg)
I can't figure what is going on here and why it won't work.