Continue building more circuit based on mick001 (Michy) repo (Circuits-LTSpice)

Note

For all the curious kids out there who open their toys to see what inside. Who asking questions at the right time.

Below are the circuits with simulation. Additionally, more notes can be found in Misc

• Amplifiers
• Basics
• Comparator circuits
  • Other circuits with hysteresis
• Controller-control-systems
• Filters
  • RC
  • RL
  • RLC
• Input stages
• Loads
• Logic-circuits
• Oscillators-and-Timers
• Power-Electronics
• Power-Sources
• Protection Circuit
  • Current limiting circuits
  • Overvoltage protection circuits
• Signal-Processing-and-Modulation
• Simulation-Techniques
• Transformer
  • Transmission-and-Power-Lines

---

Amplifiers

Name	Img
A-class-amplifier-bjt.asc
BJT-emitter-follower-configuration.asc-
Common-collector-emitter-follower-amplifier.asc
Common-emitter-amplifier-design.asc
Common-emitter-BJT.asc
Differences-amplifier.asc
Differential-pair.asc
Double-stage-common-emitter-amplifier.asc
Instrumentation-amplifier.asc
Push-pull-amplifier-AB-BJT.asc
Push-pull-amplifier-operational-amplifier.asc
Push-pull-amplifier.asc

Basics

Name	Img
DC-transfer-function-analysis.asc
Example-of-DC-sweep.asc
	In this example, voltage is swept from -10 to 10V, as voltage source greater than 0V, the voltage drop is about 0.7V from the diode side
How-to-set-initial-conditions.asc
Parallel-resistor-when-negligible.asc
PNP-transistor-biasing.asc
Transistor-beta.asc
RC-with-switch.asc

Comparator circuits

Name	Img
Comparator-with-hysteresis-asymmetrical-window.asc
Comparator-with-hysteresis-symmetrical-window.asc
Comparator-with-hysteresis-window-shifted-from-origin.asc
comparatore-con-isteresi-finestra-shifted-calculations.py
Window-comparator.asc
zero-crossing-detector-2.asc
zero-crossing-detector.asc

Other circuits with hysteresis

Name	Img
schmitt_trigger_bjts.asc
schmitt_trigger_bjts_2.asc

Controller-control-systems

Name	Img
Bang-bang-control.asc
Buck-converter-closed-loop-control.asc
PD-controller.asc

Filters

RC

Name	Img
RC-bandpass-filter-frequency-domain.asc
RC-highpass-frequency-domain.asc
RC-lowpass-frequency-domain.asc
RC-lowpass-cascaded.asc	Output of lowpass number two as stronger attenuation
RC-lowpass-step-response.asc
RC-lowpass.asc
RC-sawtooth-response.asc
RC-square-wave-response.asc
RC.py

RL

Name	Img
RL-highpass.asc
RL-lowpass.asc

RLC

Name	Img
LC-and-RC-series-bandpass-filter.asc
Notch-and-band-suppress-filters.asc
RLC-critically-damped-series-parallel.py
RLC-overdamped-series-parallel.py
RLC-step-response-example.asc
RLC-step-response-resonance-frequency-series-parallel.asc
RLC-underdamped-series-parallel.py

Input stages

Name	Img/Des
professional-input-stage.asc

Loads

Name	Img/Des
constant-P-R-I-loads.asc

Logic-circuits

Name	Img
Logic-gates-diodes-transistors.asc
Logic-gates-transistors-BJTs.asc

Oscillators-and-Timers

Name	Img
555 - Astable mode.asc
555 - Monostable mode.asc
555-astable-mode.asc
555-bistable-mode.asc
555-monostable-mode.asc
555-raw-astable-mode.asc
555-raw-monostable-mode-temporizzatore.asc
555-timer.asc
Adjustable-duty-cycle-555-square-wave-oscillator.asc
Astable-multivibrator.asc
LED-blinking-oscillator.asc
Peak-trigger-circuit.asc
Phase-shift-oscillator-RC.asc
Phase-shift-oscillator.asc
Royer-zvs.asc
Sawtooth-oscillator.asc
Sensor-triggered-timer-temporizzatore-1.asc
Sensor-triggered-timer-temporizzatore-2.asc
Sensor-triggered-timer.asc
Variable-duty-cycle-square-wave.asc
Wien-oscillator.asc

Power-Electronics

Name	Img
Boost-converter-1.asc
	Boost converter using the high voltage change during switch OFF from the inductor to continue charge the capacitor. The gain is define by duty cycle (D). D = 1 - Vin/Vout 10u Setup with Arduino is available here:  https://www.tinkercad.com/things/2v9zF7lDCHd-boost-converter?sharecode=GUI-prjcMQ9xBO0XAoe3_zGsIDaZpps5Eg2EJEY_V8A
	I believe in learning or doing small but steady. I just submited my design, hopefully we can assemble everything before 2026. I think this is the best way to learn electronics in general: Sim > Build > Test > Enjoy! Please click on the link on the left to see the actual PCB and my note.
Boost-converter-2.asc
Boost-converter-3.asc
Buck-converter.asc
	Buck converter reduce voltage with PWM. According to The Art of Electronic, we can consider LC  as a low pass filter to smooth out the output voltage
Cockcroft-walton-multiplier.asc
DCDC-full-bridge.asc
Full-bridge-inverter.asc
Full-bridge-rectifier.asc
Capacitor-dropper-circuit.asc
Half-bridge-inverter.asc
Single-phase-rectifier-constant-current-load.asc
Single-phase-rectifier-constant-voltage-load.asc
Single-phase-rectifier-R-load-smoothing-capacitor.asc
soft-starter-12V.asc
Three-phase-full-bridge-inverter.asc
Three-phase-naive-inverter.asc
Three-phase-naive-supply-system.asc
Three-phase-rectifier.asc
Example-gain-symbols.asc

Power-Sources

Name	Img
Current-mirrors.asc	Mirror current from Q2 to Ic of Q1
Current-source-BJT.asc	Discussion can be checked here: What is constant in a BJT contant current source? - Other Hardware / General Electronics - Arduino Forum
Raw-voltage-regulator-with-zener-diode.asc
Voltage-regulator-npn.asc	As you see in the figure above, Vref is linearly match with Vout.
Voltage-doubler.asc
Voltage-doubler-villard.asc

Protection Circuit

Name	Img/Des
PTC_Fuse_Calculation.ipynb

Current limiting circuits

Name	Img
BJT-for-simple-current-regulation.asc	Adjusting pot resulting in changes in base current. We dont have pot so we use two resistors to represent it.
current-limiting-npn.asc

Overvoltage protection circuits

Name	Img
overvoltage-protection-zener-diodes.asc

Signal-Processing-and-Modulation

Name	Img
AM-FM-signals-sources.asc
AM-modulator-bjt.asc
AM-modulator-jfet.asc
Analog-multiplier.asc
ASK-modulation.asc
ASK-modulation2.asc
ASK-modulation3.asc
diode-ring-mixer.asc
Inverting-integrator-and-derivative.asc
Inverting-sum.asc
Non-inverting-derivative.asc
Non-inverting-integrator.asc
Non-inverting-sum.asc
PWM-modulation.asc

Simulation-Techniques

Name	Img
Monte-Carlo-Simulation-LTSpice.asc
Noise-simulation-example.asc
Temperature-sweep-simulation.asc
Temperature-Variation-and-Worst-case-LTSpice.asc
Temperature-Variation-LTSpice.asc
Worst-Case-Scenario-2-Simulation-LTSpice.asc
Worst-Case-Scenario-Simulation-LTSpice.asc

Transformer

Name	Img
Example-of-mutually-coupled-inductors.asc
Transformer-step-down-2-1.asc
Transformer-step-down-5-1.asc
Transformer-step-down-up.asc
Transfomer-step-up-1-3-or-1-3-3-3.asc
LT8304_400V_Application.asc LT8304 Application Example to output 400V

Transmission-and-Power-Lines

Name	Img
Ferranti-effect-calculations.xlsx
Ferranti-effect-lines.asc
Lossless-transmission-line-DC-transient.asc
Lossless-transmission-line-pulse.asc
Power-line-power-transmission-calculations.xlsx
Power-line-power-transmission.asc

Note

So what is the point of doing this? You may ask and probally saying chatGPT can perform it better.

I used chatgpt to learn as well, but sometimes, I see it make mistake.

For example, I attached a transfomer's circuit once and it parsed the wrong dot notation, then I needed to correct it.

Additionally, imagine one day there is an outage and you are an engineer without Chatgpt or AI access what would you do in this case?

"to be or not to be... an independent human bean :) " the choice is in our hand.