Collaborate Disseminate
There was a time when a mains inverter was a heavy, expensive, and not particularly powerful item, but thanks to switch-mode technology we are now spoiled for choice. Most inverters …read more Continue reading Unlocking a Locked-Down Inverter
If you search the internet for 12 volt to mains AC inverter designs, the chances are you’ll encounter a simple circuit which has become rather ubiquitous. It features a 4047 CMOS astable multivibrator chip driving a pair of MOSFETs in a push-pull configuration which in turn drive a centre-tapped mains transformer in reverse. Not a new design, its variants and antecedents could be found even in those pre-Internet days when circuits came from books on the shelves of your local lending library.
[Afroman], no stranger to these pages, has published a video in which he investigates the 4047 inverter, and …read more
Continue reading Afroman And The Case Of The Suspect Inverter