Day 9: ESD Protection Diodes

I took the weekend off but we're back today. My schedule may prevent me from posting daily but I'll keep putting things up when I have time. Today I look at something that I've seen quite a bit as an intern in the protection division at ON Semi.

Day 8: Ideal Op-Amp with Negative Feedback

For stability and to avoid riding the rails (clipping at the op-amp +-Vcc), the feedback path impedance must not be allowed to become too large.

Day 7: PMOS Current Mirror

Day 6: Wheatstone Bridge

This question was asked in a written test in a job interview last week.

Day 5: Diode Bridge Rectifier

I love how simple yet so genius this configuration is. So many things we plug into the wall have this in it; there must be zillions of these out there.

Day 4: Damping, 2nd Order Systems

Continuation of yesterday's circuit.

Day 3: Series RLC filter, Band Pass

Day 2: RC LPF #2

Adding a shunt resistor parallel with the cap in the RC LPF reduces gain but increases bandwidth.

Day 1: A Circuit a Day. RC LPF #1

I don't expect to keep this up long. Way too busy for that, but I've been trying to refresh my knowledge from old courses due to recent job interviews and the upcoming FE exam. Sorry to be so esoteric for all you non-circuit types (most people). It has been nice this semester to get back into circuits; I don't see myself extensively studying semiconductor physics any further. I've been wrong before though!