Articles and news - 10

A Zobel network is useful in making a reactive load appear as a pure resistance to a driving source prone to stability problems. A typical situation is an audio power amplifier driving a loudspeaker...

Besides its mind-boggling simplicity and programmable resolution, the chief attribute of the Shannon decoder DAC is speed...

High voltage buck DC/DC controllers are popular in automotive applications due to their extremely wide 4 V to 60 V input voltage range, eliminating the need for a snubber and voltage suppression circuitry...

It’s just an unavoidable fact: electronic components’ parameters drift with temperature. Even the most stable voltage references, op amps, crystal oscillators, etc., have non-zero temperature coefficients...

The circuit in this Design Idea uses an intrinsic property of collector voltages in one-transformer pushpull dc/dc converters: They have a swing of twice the supply voltage...

If you need to quickly and inexpensively convert a binary number into a proportional analog voltage, one cool way to do it is...

A solar-powered lead-acid battery charger can ensure that the battery remains fully charged over a wide temperature range. The ideal charging circuit compensates for temperature and sunlight variations, including recovery from shading...

Filter, audio, and RF-communications testing often require a random noise source. Circuit provides an RMS-amplitude regulated noise source with selectable bandwidth. RMS output is 300 mV with a 1 kHz to 5 MHz bandwidth, selectable in decade ranges...

Figure 1 is a “charge pump” type V/F converter specifically designed to run from a 3.3 V rail. A 0 V to 2 V input produces a corresponding 0 kHz to 3 kHz output with linearity inside 0.05%...

It is often desirable to determine a battery’s internal resistance to evaluate its condition or suitability for an application. Accurate battery resistance determination is complicated by inherent capacitive terms which corrupt results...