The amplifier gained popularity with its ease of assembly, excellent repeatability and acceptable characteristics, while having a simple circuit, and of course the advantages of class-B (relatively high efficiency and good thermal stability), without the inherent distortions of this class. using the NE5532 operational amplifier, there is no need to introduce a zero offset adjustment…
The circuit consists of the following units: a rectifier with a filter, a +12V voltage stabilizer, voltage stabilization, current stabilization, indication, a control unit and overheating protection. If the output voltage can reach 50V, and not limited to the supply voltage of the op-amp (32 V), as in the vast majority of LBP circuits. The…
1200W 60V SMPS Power supply UC3844 Classic topologies of blocking converters are usually considered suitable only for small ones performance, on the order of about 100-200 W. Their main advantage for low-power applications is simplicity and large input voltage range. At the output of the transformer only the rectifier diode and the output capacitor are…
The water sensor is used in various devices in factory, automation, etc. used very often in their work. Mainly for automatic water tank filling, irrigation, heating, control and more. etc., in general, sensors are used where there is water. The use of a spark plug as a water sensor is not new. Some manufacturers even…
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…