| Zur Überwachung des Füllstandes in einem Brunnen ( ca 6 m tief ) habe ich eine Messung mit Drucklufteinperlung über einen Schlauch in den Br...
| Zur Überwachung des Füllstandes in einem Brunnen ( ca 6 m tief ) habe ich eine Messung mit Drucklufteinperlung über einen Schlauch in den Br...
| As more and more circuits are powered by battery, there is a growing need for voltage converters that can derive a stable 3.3 V supply fr...
| The circuit in this article consists of a charge pump which can be switched for use as a voltage inverter or a voltage doubler.
| Most drainage pumps are fitted with a level swttch that provides a hysteresis of 1O~15 cm. When small volumes are drained, the liquid run...
| It is often necessary to provide power for an operational amplifier from a single supply. Instead of the usual potential divider with co...
| Although the pump circuit, in one or other of its many guises, has been used in electronics for some fifty years, textbook explanations of...
| In most small solar power systems using a boiler it is required that the water circulation pump is not switched on until the temperature...
| Ever since I made my first circuit (a crystal radio) some twenty years ago, I have faced the problem of packaging the finished circuit. T...
| If you have a non-qwerty keyboard and would like to use this with your computer without having to reIearn where the deviating keys are, this...
| 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...