About me

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Teodor Traikov

about 1 year ago
  • Bulgaria
Project - Vacuum fluorescent display clock. | in Basic Circuits

Working on VFD clock using standalone atmega328, SN74HC138N (3 to 8 line demultiplexer), CD4026BE (7 segment display driver) and a bunch of transistors. The idea is to switch different grids using demultiplexers, each of them is 3 to 8 line demux and I will wire them in series so they will be 4 t... view more

Teodor Traikov

about 1 year ago
  • Bulgaria
Project - Pure sine wave inverter. | in Basic Circuits

Hello guys, I'm working on pure sine wave inverter, and for now I made step-up transformer, but I'm not very sure how to make  H-bridge circuit using 4 N-channel MOSFETS for SPWM side, I will use arduino uno for start and after some tests will use attiny85 or other similar microcontroller. T... view more

Teodor Traikov

about 1 year ago
  • Bulgaria
Project - 12v to 220v inverter | in Basic Circuits

    I'm working on 500w inverter using SG3525 and IRF1404Z. The transformer is taken from an old power supply. Topology is Push-pull.    Primary coil is 2x2 turns with center tap. It's made from 9x0.57mm copper wire. The length is about 120 cm per wire.     Seco... view more