Useful tips for everyday
Is a notch filter a band stop? A notch filter is a band-stop filter with a narrow stopband (high Q factor). Why band stop filter…
What is the purpose of bit-banding in Cortex M3? This enables every individual bit in the bit-banding region to be directly accessible from a word-aligned…
Which Ethernet pins are used? The RJ45 data cables we use to connect computers to a Ethernet switch is straight-through cables. As noted above, the…
When should a laser tube be replaced? Buy yourself a low cost power meter and regularly check the power directly out of the laser tube.…
How to improve transimpedance amplifiers with a bootstrap? Improving transimpedance amplifiers with a bootstrap. For example, with 5pF of photodiode capacitance, bootstrapping the JFET has…
Can a 9-volt battery shock you? To kill a person, an electrical shock has to pass through the heart causing arrhythmia. Even if it entered…
How can an electromagnet lift a metal? Unlike permanent lifting magnets, the lifting power / strength / force of an electromagnet can be increased by…
How to label in Eagle? After naming a net, you should use the LABEL tool — — to add a text label. With the LABEL…
How do I print PCBs at home? For this tutorial, let’s consider making a PCB for a simple project- a Touch Switch using IC555. STEP…
What is overflow in adders? Overflow for signed numbers occurs when the carry-in into the most significant bit is not equal to the carry out.…