The electronic control circuit for the 4-cylinder internal combustion engine is designed for 4-cylinder internal combustion engines to work with both the external switch, the ignition unit and the ignition coils using the built-in high voltage switches. There is a universal “DH” input for connecting a Hall sensor or a breaker contact. The U2 LM555…
The ATX power supply tester I made years ago, there was no such tester in our market at that time. Purchased power supplies were generally tested by short-circuiting the green and black cable, the fan turned, the output voltages were sufficient if they were normal, but when they were plugged into the motherboard, malfunctions occurred…
Simple SMPS Circuit Self-Oscillating ATX Transformer There were shares to run the rechargeable drill without a battery IR2153 SMPS, Battery, Transformer.. The batteries of the drill I used were also faulty, the price of the battery pack was quite high, by connecting a 12v 7ah battery, I used the drill for a long time, but…
The melody horn circuit is based on the PIC16F1827 microcontroller. The circuit can be connected to 2 horns with double relays. Relay is used for horn control. Relays 12V 10A power snail horn or similar can be used. There are 3 melodies, the first is John carpenter the end, the others are rhythmic. If it…
With the Sprint Layout 6 SprintFont plugin, you can transfer KiCad Footprint files and add many new elements to the library, you can also pull EasyEDA libraries online and import SVG, Orkod icons. Finally, texts in different fonts can be added, all details are in the video. Sprint Layout 6 SprintFont Plugin and KiCad…
I made a visually different version of the 10 channel 100 Led Spectrum Analyzer circuit that I used in the 2.1 sound system. The filter quality of the Led Spectrum Analyzer is around 6, and the middle frequencies are 31Hz, 62Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz and 16kHz. J5 on the circuit changes…
The 10W LED Driver driver circuit is designed to operate a 10 watt LED matrix (3×3, 10-12V) with current limitation. It works in the Step-Down system. The ring core used for the 500uh coil is approximately 80 turns of winding with 0.55 mm diameter wire taken from the filter located on the output stage of…
The author said to work in the form of “Sea Breeze” for the fan, but I thought of saving electricity. The speed control circuit of the fan works intermittently in the form of a light breeze instead of working continuously. The MAC16N 16A 800V triac is controlled with the MOC3082 Triac Driver Optocoupler based on…
2X84V 2X35V 14V 220W 300W 1000W SMPS circuits based on the SG3525 PWM control IC have been designed with a 14v output of the 300W output, and the SG3525 current limiting circuit is also shared for battery charging. The design of the circuits is tidy in the simple PCB drawings, but the PC40 toroidal ferrite…
Transistor 2X100W stereo and mono bass amp circuits by converting 12V battery voltage (between 11v…14.4v) SG3525 DC DC voltage amplifier circuit to around 2X30…35V. There is protection against short-circuiting in both circuits and short-circuiting of the transistors at the amplifier output and giving DC voltage. The 120W subwoofer amplifier has an adjustable bass filter circuit…