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Welcome to my electronics hobby shack.
Welcome to my electronics hobby shack.
On this website, you will find some collections of basic electronics building blocks, that can be used to build circuits, and you will find some electronics tutorials as well (Articles).
I also added some complete electronics projects (Projects), some combined with artwork (Where electronics meets art) created by my wife Mieke (glass mosaic, Tiffany).
Professionally I'm a hardware designer and embedded software engineer, designing hardware, making PCB layouts and developing firmware for microcontrollers. I also love to do mechanical design for 3D-printing, and I have experience with optical systems.
In my free time, I often find myself designing analog circuits and basically continue learning about other area's of electronics and technical stuff in general. I also love to fly RC model airplanes and experiment with building and flying 3D printed RC airplanes. Writing, music, art, astronomy also have my interest. I don't have time to get bored. :-)
The main goal of this site is to pass some knowledge and experience that I gathered over time. I try to explain how circuits work in a practical way without going deep into mathematics. My motto is: “If you can't explain it in simple words, you probably didn't understand it fully”.
Enjoy!
P.S.: You can open the menu in the top left corner of the page.
Updates :
Updates :
09-01-2021 : Added section about NIC (Negative Impedance converter) as a subpage of the Gyrators page: NIC (Negative Impedance Converter)
10-01-2021 : Rearranged and organized the menu structure in a more logical way (I hope).
11-01-2021 : Added explanation about INIC and VNIC in the NIC section: NIC (Negative Impedance Converter)
17-01-2021 : Updated the Gryators page with additional explanation and circuits: Gyrators (synthetic inductors)
06-02-2021 : Added an article about OPAMPs, explaining the basic OPAMP circuits using closed loop system equivalents and the basic OPAMP rules: The OPAMP
14-02-2021 : Added article about transistors : basics, configurations, biasing, output characteristics, amplification, transistor buffer: The transistor
06-03-2022 : Updated useless box project with an improved version of the delay circuit, solving the voltage drop issue with the Darlington driver: Useless box improvement
09-03-2022 : Update the explanation for the control loop of magnetic levitator (lead-lag compensator, PID): Very stable magnetic levitator
09-03-2022 : Added article about EMI and EMC: EMI and EMC
03-09-2022 : Added article about the road to CE compliance: The road to CE compliance
03-09-2022: Added article about all kind of mistakes you (and I) can make with electronics circuits: Where did i go wrong !?
10-09-2022: Added article about building different kinds of buffers with transistors: Transistor as a buffer
16-09-2022: Added article about how OPAMPs behave when operated from a single supply and which OPAMPs are suited for that: OPAMP single supply behavior
24-09-2022: Added article describing the building blocks that can be found inside an OPAMP: OPAMP What's inside ?
07-11-2022: Updated schematics of very stable levitator. Still not entirely happy with this project. It works, but can be simplified. Will update it later: Very stable magnetic levitator
03-12-2022: Added new project: Solid state feet warmer that keeps your feet warm with limited power consumption: Solid-state feet warmer
18-09-2024: Added LTSpice simulation of a negative inductance to Articles: NIC (Negative Impedance Converter)
25-01-2025: Added article about noise: Noise
26-01-2025: Ran all pages through a more strict spell and grammar checker.
08-02-2025: Updated article about noise with an explanation about how lock-in amplifiers, synchronous detectors work: Noise
16-02-2025: Added article about using the transistor as a switch: The transistor as a switch
28-05-2025: In Articles→ Updated Transistor configurations image in transistor basics: Transistor basics
28-05-2025: In Articles→ Added Transistor as an amplifier
29-05-2025: In Articles→ Added discrete OPAMP built with 8 transistors + simulations in The OPAMP
20-08-2025: In Articles→ Added discrete OPAMP with 9 transistors (higher open loop gain) + simulations in The OPAMP
20-08-2025: Added 2 more sections to Where did i go wrong !?
20-08-2025: Added LC oscillator low voltage LED driver.
20-08-2025: Added Negative resistance LC oscillator
20-08-2025: Added Capacitance multiplier using 1 single OPAMP turns 1uF into 100mF in Capacitance multiplier
Page updated
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