A circuit PCB design that adjusts the fan speed according to the temperature was made as small as possible, most of the components are SMD, in addition to the fan control circuit I share in the PCB drawing I prepared for DIP components. Fan control circuit; Amplifier, power supply circuits etc. The fan control circuit,…
The single channel 200W version of the amplifier shared in the article 400w (2X200w) Transistor Amplifier Circuit was designed as small as possible in PCB size. The power transistors of the 200W Afi circuit do not require the classic 2SC5200 and 2SA1943 quiescent current adjustment. The amplifier can deliver 100W RMS power with a 4-OHM…
The Strobe Led Lamp circuit has 16 effect modes selected with the button built on the PIC12F675 microcontroller. Since the selected mode is stored in the integrated eeprom, the selected mode remains in memory when the power is cut. The source is Picbasic Pro software. You can adjust the lighting times of the LEDs and…
I shared the ATmega88 microcontroller Led Heart circuit years ago. The LED Heart circuit that I have applied is controlled by the ATmega8 microcontroller. I made a lot of decoration on the PCB top floor and the PCB was made more useful for additional circuits. In the LED heart circuit, 22 ports of ATmega8 (ATmega8A-AU…
Every electronic system, even the simplest, requires a power supply. The presented board contains three stabilizers supplying voltage through pin connectors and special wires to the contact plate with pocket dimensions and 170 fields. Such boards allow you to build electrical circuits without the use of a soldering iron and tin. This pocket-sized kit will…
I have seen different versions of the power supply, even the same circuit has a halide designed as a battery charging circuit in the LM317 datasheet file and in some electronic books, but I did not have the opportunity to apply it. Nevertheless, the familiar power supply circuit such as the LM317, made with the…
It can be thought that sitting on the knee chair, does not look comfortable, but it is a very useful design especially for those who spend a lot of time at the computer. The parts can be made by hand, but it is much better with CNC. When sitting on a computer tongs for a…
The important thing for the subwoofer amplifier is the Bass filter circuit. Circuit TL072 Opamp is built on operational amplifier. The system’s task is to collect signals from both channels and then separate low frequencies. There is a lower level filter, regulation of filter cutoff frequency in the range of 50Hz-150Hz, smooth phase shift and…
My brother Hasan is an old project of two channels 300w and 500w versions. Pre-shared 500W 250W Hi-Fi Transistor Amplifier Circuits and SG3525 EI33 ATX 200-600w DC-DC Converter for auto amplifier projects Output power transistors of the Amplifier Circuits 2SC5200, 2SA1943 DC DC converter floor SG3525 pwm control integration is used. EI33 transformers are used…
The project is an external OBDII socket interface that allows easy access to the CAN bus and other transmission lines used by vehicle manufacturers using a diagnostic tester. Recommendations: the project is designed for car services and workshops dealing with electronics and diagnostics. All electronic modules are connected in parallel to a 2-wire twisted pair.…