Battery Charge Indicator (CB26002E)

This circuit was found in the March 1997 Electronics Now magazine. It uses a common analog indicator and the transistor is a general purpose one.

| Clique na imagem para ampliar |

Variable power supply (CB21779E)
This current-limited variable power supply was found in 1977 book. The diodes are according to...
LM5176 Buck Boost Synchronous Controller - Texas Instruments
The Texas Instruments LM5178 Buck-boost controller is capable of operating in the 4.2 to 55 V (60...
Relative Value Comparator (CB19483E)
This circuit compares the input voltages by providing an output according to the curve next to the...