Remote control potentiometer PIC12F629 control protocol RC5 built on microcontroller System An infrared receiver that controls the stepper motor mounted behind the potentiometer. The protocol is similar to the RC-5 protocol, using Manchester encoding is 13 bits long. After the first bit of two bits is skipped, the length of 1.06 ms is measured, followed…
Very simple designs compared to complex Solar chargers but very useful. Loss is minimized as the first battery charge circuit LM741 opamp uses mosfet in the power control. Mosfet IRF3205 used Author’s explanation about the 741 Opamp circuit; FRIENDS As you know, the charging circuits spend some of the current as heat in the transistor.…
Unipolar Step Motor driver circuit up to 20A. It works with maximum power 20A, Maximum 100V, Over temperature protection, Half step and full step operation. Unipolar Stepper Motor Driver circuit L297 integrated on L297 integrated circuit is powered by mosfets and high power motor version is provided. Tests were done in the workshop with Mach…
Amplifier solid Kenwood KAC-718 model subwoofer filter, DC DC converter, Fan control circuit uPC1237HA protection, circuits are taken from Kenwood KAC-716 model. Technical Specifications of Car Amplifier: Maximum Power Output (at 4Ω, 100Hz) 1x 240W Nominal Power Output (4Ω) (0.08% THD at 100Hz, Supply 14.4 volts). 120W Nominal Power Output (2Ω) (0.8% THD at 100Hz,…
Active subwoofer filter circuit based on TL072 Opamp is designed for use with Power amplifier with good parameters (narrow frequency response). The transition band of the filter is between about 10Hz (bottom) and 80Hz. + -12v symmetrical Zenerli regulated circuit Max. input voltage + – 38VDC There are PCB and diagram drawings, material list prepared…
The ultrasonic proximity detector circuit PIC12F675 detects the distance installed on the microcontroller as adjustable from about 30 cm to 3 m Ultrasonic Distance measurement is based on measuring the rotating time of the radiating ultrasonic wave reflected from any object. Thanks to the use of the Microchip PIC12F675 microcontroller and integrated hardware functions, the…
Regulator circuits such as LM317, LM350, which are used for many electronic circuit feeding, do not have current adjustment. In this project, current adjustments are provided with a few additions, and the reference voltage is pulled to zero, and a simple cheap laboratory power supply circuit with a voltage between 0.30V and 0.3A current is…
The Studio series is a premium stereo headphone amplifier with very low noise and distortion. Operating voltage installed on circuit OPA2134 opamp symmetrical + -15v dc Headphone Amplifier Main Features High performance – very low noise and distortion Can be used with high and low impedance headphones High output power (200mW; up to 8Ω and…
350W Scooter of Electric Motor Scooter control unit, max. It can power 500W. Input voltage 36V DC (can be used with 20V… 50V.) Scooter Motor Control works on the principle of motor winding as a switched power supply and coil. In forward driving, the unit acts as a downstream converter and controls the current to…
High resolution posters with symbols of basic electronic circuit elements for beginners, amateurs or electronic hobbyists. If there is room in your electronic workshop, you can hang it on your wall and it will make your environment more enjoyable. Electronic component symbol poster Earth Symbols, Resistance Symbols, Capacitor Symbols, Inductor Symbols, Measurement Symbols, Electromechanical Devices,…