I know the struggle of an electronics student while learning and practicing the digital circuits. In digital circuit we need a lot of external input/ output interface and different clock frequencies. That’s why I designed this digital trainer kit. Which consists of a lot of onboard helping elements. I want to keep it minimal that…
I designed some class D amplifiers which are based on TPA3116d2 integrated circuit and has a very good performance. But the noise is little high and if you want to make professional circuit in Class D then we need a high-power IC. I came with a solution of TDA series 7498 IC, you might now…
Previously I made an IR remote block, which can block or jam the signal from an IR remote to any device like radio or TV. But sometime case is to increase the range of remote. If you are inside a room and want to operate in other place or in second room then the concept…
I made a simple waveform generator using operational amplifier, here this signal generator can be used to verify the electronics circuits and small integrated circuits. It can generate square wave and triangular wave up to 5khz. The main reason to make this type of waveform generator is price, it can be made under $2. And…
There are two type of digital circuits, some need a clock pulse trigger known as synchronous and other are asynchronous (no need of trigger). Asynchronous action is fast but unpredictable that’s why whole the microcontroller world run at a desirable clock. Nowadays CPU working frequency is very high (current Gen Intel i9 13 gen can…
There are a lot of programmers available which helps to covert the USB data into UART form. Which then allows to flash the complied data into microcontroller’s memory. But some of the programmers are compatible with Arduino and has DTR reset pin. Another big problem is that these programming boards has an old USB ports…
Today I have another Class D amplifier circuit, this amplifier is based on TDA7498 IC. TDA series is known for its high performance and good sound quality. You can say this IC is the king of Class D amplifiers.TDA7498 comes into two type of SMD packages. One is TDA7498-M which has a 100w mono channel…
Soft base with high treble settings is the need of every stereo system. And today I have TL072 jfet operational amplifier-based audio preamp. All the controls are running on a single two channel op amp IC. Simple RC filters are used for the bass and treble audio separation further regulated by operational amplifier. This operational…
PCB (printed circuit boards) are really very important to minimize the circuit design area and overall cost. PCB manufacturer quality and capabilities depend on the material and minimum featured sized of tracks width. Some of the manufacturers provide up to 6 layers of PCB. I designed and integrated the Arduino NANO with NRF24L01 trans receiver…
Today I have TDA2030 amplifier project here to share with you guys. This IC is developed by ST microelectronics and TDA series is known for its high-fidelity sound experience. TDA2030 is very old and discontinued by ST but still available due to huge stock. Some other manufacturers also making the same but Original IC has…
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