When a positive voltage is applied to the base with respect to the emitter, it forward biases the base-emitter junction and allows current to flow from the emitter to the collector.
The main difference between them is the direction of the current flow and the polarity of the voltage that controls the transistor.Īn NPN transistor has a base region made of P-type semiconductor material and two N-type semiconductor regions on either side, forming the collector and emitter. NPN and PNP are both types of bipolar junction transistors (BJTs). Therefore, I would like to thank Robert Feranec.īipolar Junction Transistors BJTs (NPN and PNP): Additionally, Robert Feranec's YouTube content and courses were very valuable to me in my learning process. This project was just the beginning for me, and I hope to work on bigger and more complex projects in the future. I also improved my project management, planning, and budget management skills. Since it was my first design, I made many mistakes, but all of these mistakes were important learning experiences for me. I gained a lot of valuable learning and experience from this project. The most important components of this design include the Cyclone 2 EP2C35F484C8 FPGA, Analog Video Signal Processing Chip (ADV7180B), DRAM Memory (IS42S16400J-7TLI-TR), Ethernet Chip (DM9000A), Serial Configuration Device (EPCQ16ASI8N), JTAG Connection, GPIOs, LEDs, and Buttons.
This was done to minimize electromagnetic compatibility (EMC) issues and to achieve a strong signal integrity.
The board was arranged in signal-gnd-signal-power-gnd-signal layers according to placement and routing rules.
The PCB design was made in a six-layer structure with a size of 80x80mm. Hello everyone, today I want to share with you about my first design, an FPGA-based image capture device.
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