All items tagged with PDF and Battery (18)

1-07-1997 | The saver is intended to prevent a battery-operated instrument such as a multimeter without an automatic off switch to be left on for day...

1-12-1995 | This circuit, a. d.c.-d.c. converter, is intended to charge environment-friendly batteries in and environment-friendly way. lt is based...

1-12-1995 | Many audio circuits need a symmetric power supply of ±12 V. If such a circuit is to be used in a car, the -12 V line must be somehow deri...

1-12-1995 | The monitor, based on Philips Components' Type TEA1041T, enables a check to be kept on the power supply lines of a battery-operated appli...

1-09-1995 | Letters from our readers.

1-09-1995 | Letters from our readers.

1-07-1995 | Systems with RAM must always be connected to a power supply otherwise the data in the memory get lost. Any break in the supply can, ther...

1-07-1995 | The charger is designed to charge NiCd batteries with capacities of 150-4000 mAh. A potential 5 V higher than the nominal voltage of the...

1-07-1995 | A small quartz clock that is powered by a 1.5 V battery provides a simple means of determining the capacity of a NiCd battery. The circui...

1-07-1994 | This unit is intended as an add-on for the many lead acid battery chargers that have no charge indicator. A green LED shows that the bat...