Based on Texas Instruments documentation, this circuit is based on the BQ2000 a circuit used to power LEDs. The circuit can be used with lithium-ion batteries.
Although it is a common configuration today, this circuit was taken from an old publication. The...
In the figure we have the way to implement a 3-Input logic function OR inputs using common diodes....
We found this circuit in a 1977 National Semiconductor Databook. The circuit can use other FETs...