More about 555 (49)

1-07-1992 | The perpetual difficulty in designing fast NiCd chargers is determining when the battery is charged, that is, when to stop charging.

1-03-1992 | Whilst developing a simple scanning receiver, a need occurred for a ramp generator to provide a varying voltage to apply to the varicap d...

1-12-1991 | 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...

1-07-1991 | Many electronic circuits frequently require the brief delay of a pulse. Such a delay, here between 100 µs and 100 s, is easily provided...

1-02-1989 | 24 EE February 1989 vcc 555/7555/TLC555 MORE APPLICATIONS FOR THE 555 There are probably few integrated circuits that have been with us for...

1-07-1982 | This circuit may look familiar to many readers since it is one of the many variations of circuits on the 555 timer theme. This does not detr...

1-07-1980 | The versatile 555 timer IC has the habit of turning up in wide variety of circuits. As it is such a useful little device it has become very...

1-07-1977 | Anyone possessing a frequency counter with a facility for period measurement can build this simple add-on unit to measure capac...

1-07-1975 | The IC 555 is normally used as a timer. The time delay for these applications is obtained by charging and discharging a capacitor betwe...