More about LED (792)

1-07-1993 | Designing a suitable LED display for a particular application can be time consuming. In particular, the decoder that sits between the dri...

1-07-1993 | Most modern voltage regulators have an integral current limiter. These are, unfortunately, normally provided with a thermal 'fuse', whic...

1-07-1993 | Digital clocks and timers are around us in a multitude of appearances, so it makes little sense these days to build one yourself. However,...

1-12-1992 | This campact four-digit counter is suitable for many applications, such as clocks, frequency meters, digital voltmeters, tachometers, sto...

1-06-1992 | Our earlier publications on I²C-compatible circuits having met with a great deal ot interest, we now move on to a tour-digit seven-segment...

1-01-1992 | Having dealt with sensor interfaces that measure temperature and relative humidity, we now tackle two other important meteorological param...

1-12-1991 | The measurement card for the indoor /outdoor thermometer "may be provided with the additional LED indicator shown in the diagram to check...

1-10-1991 | The electronic hygrometer, or relative humidity (RH) sensor, discussed here is remarkably accurate, and functions automatically as part...

1-07-1991 | Clocks, as most of you will be aware, can take many shapes and sizes. Here is one with a fairly unusual read-out, intended as an eye catch...

1-07-1991 | The source, based on a Type TL084 quadruple opamp, is intended to convert an input signal of 0-5 V into a current of G-20 mA. This type...