More about LED (792)

1-07-1991 | This 8-bit bus extension card for IBM PCs and compatibles allows you to eonnect and test insertion cards without having to open the comp...

1-07-1991 | In this somewhat unusual digital voltmeter, the measurand (voltage to be measured) is digitized in an analogue-todigital (A-O) converter...

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...

1-07-1991 | The charge-discharge-idle (C-D-D monitor described here is suitable for all vehicles with a 12-V or 24-V battery of which the negative t...

1-07-1991 | Although there are a number of ICs on the market with which it is quite simple to construct an LED VU meter, there is still interest in buil...

1-07-1991 | When the control voltage at the Input of the circuit is varied from 0 V to +12 V, the LED will first light up green and then gradually, via...

1-07-1991 | The most popular currcnt indicator in electronics is almost certainly the Iight-emitting diode (LED) which is available in a number of c...

1-04-1991 | The circuit diagram of the power supply shows that the semiconductor tester has an on-board step-up voltage converter that is powered from...

1-03-1991 | This versatile, PCcontrolled, test instrument, designed and marketed as a kit by ELV, puts you in a position to view, on your PC monitor, th...

1-03-1991 | This is the first in a short series of articles on applications of the multifunction measurement card for PCs, described in the previous t...