An SCR topology transmogrifies into BJT two-wire precision current source with a self-resetting fault-current limiter.

An interesting analog design problem is the precision current source. Many good designs are available, but most are the three-wire types that can be used as a positive (see Figure 1) or a negative ...

Performance specs can be trumped, but elegance persists. Consider the most basic task in industrial control: driving sensors and bridges. It doesn’t matter if you’re dealing with a strain-gauge bridge ...

Semiconductor single-electron current source ("single-electron pump", left), connected to the high-precision current/voltage converter ("ultrastable low-noise current amplifier" (ULCA), right).