If we replace the potentiometer VR1 with an AC signal plus DC bias signal in any of the previous Figures 3 to 17, the voltage controlled attenuators can become an amplitude modulator circuit instead.

Offered in DC and AC/DC versions, the MeasureReady 155 from Lake Shore Cryotronics serves as a low-noise source of current or voltage in the lab. The 155 performs precision DC I-V and C-V curve ...

Bootstrap circuits are widely used in dc-dc converters to serve as top-side bias voltage supplies. After explaining how bootstrap circuits work, this article will show how versatile they can be. One ...

New technical paper titled “Bridging the Gap between Design and Simulation of Low-Voltage CMOS Circuits” from researchers at Federal University of Santa Catarina, Brazil. “This work proposes a truly ...

I see techs in the field get the most frustrated when they have a low-voltage short they can’t seem to locate. The challenge techs face with low voltage diagnosis is a combination of poor process and ...

There was a time when taking a low DC voltage — say a single battery — and converting it to a higher voltage was painful. Now, however, cheap and easy-to-use DC to DC converters are readily available.

You must provide ground fault protection for DC photovoltaic (PV) arrays. But you don’t have to, if they are ground- or pole-mounted PV arrays with not more than two source circuits isolated from ...

Researchers at the US Department of Energy’s Oak Ridge National Laboratory (ORNL) are breaking technical barriers with faster circuit breakers to enable and protect the modern electric grid. The ORNL ...