With supply chains breaking due to the pandemic, some resources are becoming hard to procure. There are cases when someone’s profession or life, depends on these resources. Being a technical author ...

The load current is 10 mA. Figure 1 A series of LM317 circuits investigated in simulation and on the test bench for suitability as a current source. The circuit’s broadband PSRR was simulated, ...

Contributing editor, Bob Pease, explains how to design several different circuits for limiting currents as high as 300 mA using an LM317, LM334N, IRF640 or IRF740. The other day I was studying a ...