This Design Idea describes a new class of logic gates, which we have named resistor-FET-logic, aka “RFL.”...
This Design Idea describes a new class of logic gates, which we have named resistor-FET-logic, aka “RFL.”...
A classic analog application is the full-wave precision rectifier (absolute value) function. Many variations exist on this theme, each with its own supposed (often rather minor and sometimes downright dubious) advantages compared to competing topologies...
Brushless DC motors transform electrical power into mechanical power. However, there’s no such thing as a perfect motor; there are always losses in the transformation...
It was a no brainer – at first. Circa 1985 equipment still in use by telcos, the DUT was a remote-operated twisted-pair telephone cable analyzer. We had extensively reverse-engineered and repaired several of these a couple years ago, the OEM was defunct...
While choosing an op-amp buffer, some sources of negative supply were considered, because the buffer op-amp had to provide true zero voltage on its output...
Capacitance sensors measure a wide variety of physical quantities, such as position, acceleration, pressure and fluid level. The capacitance changes are often much smaller than stray capacitances, especially if the sensor is remotely placed...
Figure shows a chopped amplifier that requires only 5.5 µA supply current. Offset Voltage is 5 µV, with 0.05 µV/°C drift...
The traditional analog function generator with its customary triple-threat ensemble of square, triangle, and sine waveform outputs is a familiar tool on electronics lab benches...
The bandpass filter circuit features an electronically controlled Q. Q for a bandpass filter is defined as the ratio of the 3 dB pass bandwidth to the stop bandwidth at some specified attenuation...