Wednesday, November 21, 2018
AAA Battery Protection with Wrong Polarity LED Indicator
This simple circuit will protect the AA or AAA battery from the wrong polarity connection to your device. If the battery is connected in the opposite way, D1 will conduct and PTC Fuse will break the circuit. Wrong polarity indicator, LED 1 will be turned on at the same time.
Designing Thermal Vias
Enhancing thermal transfer for FR-4 PCBs can be achieved cost-effectively by incorporating thermal vias and plated through-holes (PTH) betwe...
-
A voltage divider resistor network could be used for stepping the monitored voltage down to the range necessary for A/D conversion. A pass...
-
This EMI filter includes a common-mode filter and a differential-mode filter. Generally Differential mode filter filters noise less than 3...