More about time (745)

1-12-1992 | If you ever need to derive a 5 V line from, say, a 15-25 V supply, National Semiconductors LM1575 and LM2575 are ideal. These switched 5-...

1-12-1992 | Integrated voltage regulators LM317 and LM337 enable a simple, regulated, symmetrical power supply as shown in the diagram to be designed....

1-12-1992 | Most debounce circuits shorten or lengthen the time a switch is pressed to obviate interference pulses caused by switch bounce. The pres...

1-12-1992 | The charger makes cunning use of the properties of a Type 555 timer. The tnternal window comparator of the lC is set to 4.7 V by zener dio...

1-12-1992 | One advantage bipolar opamps have over FET types is that their input noise level is appreciably lower. However, when abipolar opamp is us...

1-11-1992 | A printer is an essential peripheral device for nearly every one using a pe. However, since a printer will rarely be used all the time, it...

1-11-1992 | Any time a device produces a resistance (or resistance change) as the transducible property for a measurement, we can use the Wheatstone...

1-10-1992 | For years nothing much happened in the field of nonvolatile read/write memory components until the EEPROM (Electrically Erasable and Progr...

1-09-1992 | This is a revamped version of an EPROM-emulator we published about three years ago. This time we propose to build the circuit with standar...

1-07-1992 | When the Atari ST is provided with an external hard-disk drive, it has to be reset after about 15 seconds, as otberwise the drive is not...