De Werkbank
Relay or triac: which one should you use for AC control?
Choosing a relay or triac for AC switching
A relay and a triac can both switch an AC load, but the right choice does not follow from the word
motor...
Understanding flyback converters: building your own power supply
Building an isolated power supply sounds like something for advanced makers. Yet, the flyback converter is one of the most elegant circuits in powe...
Choosing capacitors: what is the difference and which one do you need?
A capacitor is a capacitor — until you notice that two capacitors with the same capacitance value can behave very differently in a circuit. The typ...
The NPN transistor as a switch: BC547 vs KSC1845
The transistor as a switch is one of the most fundamental circuits in electronics. Not spectacular, but indispensable. With a small control signal ...
Protecting your project: fuses and RCDs explained
Choosing or replacing a fuse: check more than the amp rating
A fuse is intended to protect wiring and equipment when a fault current occurs. Never ...
Schottky diode: when should you choose one and why?
Choosing a Schottky diode: start with the application, not the label
A Schottky diode can be useful when low forward voltage or fast switching matt...
Soldering tools: what do you really need at the workbench?
Many makers invest seriously in components but cut corners on the tools they use to assemble them. Understandable — until a solder pad lifts, a com...