
Essential development equipment
An Introduction to Current Sources
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2.3 Essential development equipment
2.3.1 Bench power supply unit
An essential requirement for developing any precision current source, sink, or mirror
would be the use of a high-quality, variable, calibrated, low-noise bench power supply
unit with either an analog or digital readout. The bench power supply acts as a stable
reference for your current source design. In this manner, it is easy to set the supply
level(s) at a particular nominal setting and measure the circuit under test. With such a
unit it is an easy matter to vary the supply level(s) up and down, and measure any ...