With this circuit it is possible to obtain a higher voltage from a zener diode. The circuit is from a 1970’s EEE. The device used as a constant current source is uncommon today.
The MOS field effect transistors of this circuit are not very common, as it is a project from the...
If interference occurs in several receivers, much more interesting than placing a filter on each...
This single-cell Li-Ion battery charger was found in a 2005 Linear Technology manual. The circuit...