My college undergraduate electronics classes covered some analog design, and I'd like to further my knowledge and experience. What would be a good project that would require significant effort as far as research and learning new material? Ideally, the project, when finished, would also serve as evidence that I have analog design skills.
An analog synthesizer has a number of functional blocks -- voltage controlled oscillator, voltage controlled amplifier, mixer, envelope generator, filter with voltage control over the cutoff frequency, noise generator, analog multiplication
Power Electronics ... DC to DC converter, DC to AC converter, motor control
Audio .... Amplifier pre-amp
- a log-amplifier (output voltage increases by V0 volts every time input voltage doubles)
- an optical interrupter (put two LEDs on either end of a tube with a slot cut through it; put current into the transmit LED, amplify the current produced by the receive LED)
- a thermocouple temperature reader (amplifier + cold-junction compensation + ADC)