I checked another item off my ‘Bucket list’ last week. NASA enabled me up to ‘fly’ the Mars Orion simulator!
A transimpedance amplifier (TIA), which takes the current from a photodiode and converts it into a usable voltage with low output impedance, can provide effective gain for a photodiode signal.
The op amp-based current sensing circuit described here is not new, it has been around for some time, but with very little discussion of the circuit itself. Somewhere along the line it was informally given the name: "Current Drive" circuit, so we'll call it that for now.
EnOcean has enabled millions of wireless light switches that do not contain batteries and has now introduced the “Battery-free by EnOcean” seal to highlight the self-powered switches’ benefits at a glance.
In October, a New York City Police Department officer on Staten Island wore a body camera that unexpectedly began smoking and caught on fire.