| After many years, there is finally a digital version of the well-known Type 555 timer IC: the HCT5555.The traditional 555 can be used as...
K. Walters (11)
| In most personal computers, the power supply provides +5 V and ±12 V lines. The positive 12 V line is needed for the disk drives, and the...
| The pump in sorne central-heating systems has two or even three speeds. At the lowest speed, not much hot water is pumped around the cir...
| The charger deseribed switches off the charging voltage when the battery reaches its full nominal voltage and switches it on again when...
| There are many tirnes that a designer needs to know the value of the internal resistance of a battery. There are quite a few testers that...
| A heat-sensitive sensor may be used to construct a direction detector. Such a sensor reacts to all animal heat. The one used in the prese...
| A standard voltage regulator Type 7805 is inexpensive and easily available, but its maximum current of 1 A can at times prove a handicap....
| It happens frequently that a circuit powered by a single supply voltage is extended and then needs a second supply voltage of opposite...
| This circuit enables the input voltage of a power supply to be adjusted in accordance with the required output voltage to eliminates undue p...
| In much equipment, such as computers, amplifiers, and the like, where high tolerance components are used, it is important to know at all...