More about relay (103)

1-02-1993 | The popularity of our series on I²C devices is still growing, and that is why we venture to propose a real-world interface for the I²C bus...

1-12-1992 | AV recorders used in audio-video presentations contain an additional head to read and write the control pulses for the slide projector. T...

1-12-1992 | With the aid of a few components a standard relay can be made to change state every time a pulse is applied (or a switch is pressed).

1-07-1992 | In most small solar power systems using a boiler it is required that the water circulation pump is not switched on until the temperature...

1-12-1991 | Although the 5202DS2 solid-state relay (SSR) from Sharp is a useful and interesting electronic cornponent, it fails to meet the mirtim u...

1-12-1991 | In older cars, the battery charging voltage is controlled mechanically. The regulator consists of a relay that switches the stator windin...

1-12-1991 | Simple battery chargers and power supplies are not normally provided with a current Iimiter. In many cases, however, it would be advanta...

1-11-1991 | This relay card connects to the universal I/O-interface for IBM PCs described in the May 1991 issue. Simple to build and program, it ofter...

1-07-1991 | This insertion card for IBM PCs and compatibles is the gateway to PC-based control of almost any type of equipment. Based on the familiar...

1-07-1991 | The circiut presented here enables the automatic switching on of outside lighting when its gets dark and, what's more, it does so for a...