More about battery (486)

1-07-1998 | Lead-acid batteries must not be discharged deeply. In the best case, this leads to an irreversible loss of capacity; in the worst case,...

1-07-1998 | This design is based on the celebrated 555 timer IC, and changes a positive voltage of 9 V into a negative one. A low-power dc-dc conver...

1-05-1998 | A measurement of the e.m.f. of a battery (dry or rechargeable) does not say anything about the condition of the battery or its constituen...

1-03-1998 | This is the third and last in a series of three miniature designs for beginners in electronics. Each of the designs is powered by a 3...

1-01-1998 | This article describes an electronic version of an age-old tool for games of chance: the die. It is, however, not cubical, but the numb...

1-09-1997 | Many model craft are powered by 12 V rechargeable batteries. Often, it would be a godsend if these batteries could be charged by a...

1-07-1997 | Linear Technology's LTlS13 is an IC that is intended for use as a 500 mA current-switch-mode controller in battery charger with constant...

1-07-1997 | This little circuit exploits the fact that the remaining capacity of a Lithium Ion (Li-Ion) rechargeable battery is virtually proportiona...

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...

1-07-1997 | Input selection in the battery operated preamplifier published in the January 1997 issue of this magazine is by rotary switch. This does...