View Single Post
Old 12-21-19, 09:35 PM   #12
NiHaoMike
Supreme EcoRenovator
 
NiHaoMike's Avatar
 
Join Date: Oct 2008
Location: Austin, TX
Posts: 1,131
Thanks: 15
Thanked 249 Times in 235 Posts
Default

The reason why I'm looking at reusing a Prius inverter rather than building one from scratch, apart from it already having the hard work of all the gate drive and critical current path layout already done, is because it's actually cheaper to buy that rather than the parts to build a comparable inverter power stage from scratch!

DIY EV builders have pushed Prius inverters a lot harder than my application ever will. In fact, it will only get pushed to a fraction of what it would operate at in its original application.


At this point, I'm building the PLC transmitter for the current sensor. It will use a pair of PLL synthesizers with a crystal reference to ensure the carriers don't drift due to component aging and temperature variations. (They'll be fairly close together in frequency so I need to make sure they won't drift into each other.) The signal will be applied to both phases and the inverter will use receive diversity to improve robustness to EMI.
__________________
To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...
NiHaoMike is offline   Reply With Quote