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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Electronic Projects

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Paralleling LM317 regulators for higher current, using TL431 reference for excellent performance
4.80 star(s) 5 ratings
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555 VCO (Voltage Controlled Oscillator) uses constant current control to give wide control range.
0.00 star(s) 0 ratings
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Powerful DC Motor Driver using Power Mosfets [30A, half Bridge]
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A Small and efficient DC to DC Step Down (Buck) Converter
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High-side, 2-terminal circuit replaces vehicle mechanical flasher unit.
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Three-transistor current limit has low voltage drop and adjusts to zero current out
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How to increase the output current of the LM317 Adjustable Regulator
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LM317 circuit requires only 3 added transistors to allow zero to maximum current-limit adjustment.
5.00 star(s) 1 ratings
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Simple HX711 Weight Scale follow-up to OpenScale
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Output of a typical buck switching regulator is externally adjusted from 0V to full-scale.
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Dog Bowl Monitor using Simple Weight Scales and HX711 Sensor
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Open Source Hand Sanitizer Dispenser with Laser-Cut Enclosure [Pro]
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Open Source H Bridge DC Motor Driver
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Take the switch GS waveform as an example to talk about the GS waveform.
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PWM solenoid driver provides initial full voltge pulse and a lower PWM hold for good efficiency
4.50 star(s) 2 ratings
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Digital FM Receiver using Arduino and TEA5767
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