As stated in Part 1, the Type-N connector was introduced in 1942. Still commonly used today, this connector, which employs threaded coupling, is known for its durability...
Articles and news - 4
What are the differences between coaxial connectors? Part 2
Jolly upgrade for the Arduino UNO
A development team led by electronics engineer and Arduino co-founder Gianluca Martino has completed the first phase of a crowdfunding project, outsourcing the production and sales of the Jolly module to Swiss company Meteca SA...
A safe adjustable regulator
Figure shows a typical using of LM350 (LM317) adjustable regulator when you need to adjust its output voltage. The potentiometer R2 is often the most unreliable part of the circuit...
What are the differences between coaxial connectors? Part 1
Although often taken for granted, coaxial connectors are a key aspect of any RF/microwave application. While they may receive less attention than other components, connectors nonetheless must provide adequate performance to avoid any system degradations...
Simple anticipator circuit improves on earlier idea
A self-biasing thermistor circuit had an overall dominant thermal/ electrical time constant as small as 25 msec but had a significantly rounded response following a square (thermal) input pulse of 100 msec; the source was a pulsed blue LED...
Lithium-air battery offers up to 4x the capacity of Li-ion
One of the most common reasons stated by consumers to not buy electric vehicles is their range. On that front, things have improved over the last few years with EVs offering better range and faster charging...
Add hysteresis to a voltage comparator
Positive feedback is a typical technique for distributing hysteresis around a comparator, provided that you have a resistive path between the comparator's output and the noninverting input...
Anticipator circuit speeds signal settling to a final value
The circuit anticipates, or jumps instantly to, the final voltage of an input-signal change. It relies on the fact that the intended input signal changes exponentially with a known time constant...
Consider the "Deboo" integrator for unipolar noninverting designs
The design of a standard inverting integrator is simple when bipolar supplies are available, but it's cumbersome with a unipolar supply...
Phase-sequence indicator uses few passive components
In a three-phase ac system, a power source with three wires delivers ac potentials of equal frequency and amplitudes with respect to a zero-potential wire, each shifted in phase by 120° from one wire to the next. Two possibilities exist for establishing a phase sequence...