Automatic LED Stairway Lighting – Arduino Compatible

Automatic LED Stairway Lighting – Arduino Compatible

This creative idea is suitable for a stairway with 16 stairs, each stair can have a 12V LED. It has two sensors one at the start and one at the end of the stairs and when the sensor trigered at any end it starts a process of lighting each of the steps in a progressive cycle starts....

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Programmable Frequency – Continuous Conduction Mode (CCM) – Boost Power – Factor Correction (PFC) Controller

Programmable Frequency – Continuous Conduction Mode (CCM) – Boost Power – Factor Correction (PFC) Controller

  The circuit described here is a simple PFC controller using the UCC28180 chip from Texas instruments. The controller operates under average current mode control at a fixed programmable switching frequency of 116 kHz. Simple external current and voltage loop compensation,...

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2.657
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SafeBee – A GPS Tracker for Beehives

SafeBee – A GPS Tracker for Beehives

This is an original design of a GPS tracker designed on Elab and it is intended to be used as a security device for beehives, but it is not limited to this. It can be used everywhere a motion-activated GPS tracker is needed, like your car, bike, or even your boat. It is a GPS tracker...

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4.876
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10 Comments
3 Phase Isolated Hall-effect Current Sense Amplifier with +/-600V Working Voltage and +/-46A Measurement Range

3 Phase Isolated Hall-effect Current Sense Amplifier with +/-600V Working Voltage and +/-46A Measurement Range

The project described here is a 3-Phase isolated Hall-effect current sense amplifier with +/-600-V working voltage range. The current sensor senses magnetic flux generated from current passing through the lead frame at common-mode voltages 0 to 600V DC and provides proportional output...

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2.965
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Multiphase Oscillator with 40% Spread Spectrum Frequency Modulation and 250Khz Output Frequency

Multiphase Oscillator with 40% Spread Spectrum Frequency Modulation and 250Khz Output Frequency

This is a precision, low power, and easy-to-use oscillator that provides multiphase outputs. The output frequency of the project is set to 250Khz, with 40% spread spectrum. The oscillator frequency can be set by resistor R1, and the spread spectrum can be changed using R3. The master...

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2.298
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Dual-Level Float-Cum-Boost Charger with Pre-Charge for 12V – 3 to 6Ah Sealed Lead Acid (SLA) Batteries

Dual-Level Float-Cum-Boost Charger with Pre-Charge for 12V – 3 to 6Ah Sealed Lead Acid (SLA) Batteries

This SLA Battery charger project is the right choice if you want to obtain maximum battery service life and capacity, along with acceptable recharge time and economy, constant current, constant voltage, and even charge a deeply discharged battery. The project contains all the...

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2.822
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3 Comments
15V to 60V – Three-Phase Brushless DC Motor Pre-Driver

15V to 60V – Three-Phase Brushless DC Motor Pre-Driver

The project presented here is a three-phase BLDC motor pre-driver. The project consists of 3x half-bridge IR2101 driver IC and 6 channel high current N-MOSFETS. The project can be configured as 3 independent half-bridges H-bridge for a brushed DC motor, or a single high current...

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4.573
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1 Comments
Sensorless FOC 3 Phase Low Power Brushless BLDC Motor Driver

Sensorless FOC 3 Phase Low Power Brushless BLDC Motor Driver

Driving a 3-phase brushless DC motor is very easy with this project. It is a simple and easy-to-build project that requires only a few external components. The circuit is based on AMT49400 IC which is an advanced 3-phase, Sensorless, brushless DC (BLDC) motor driver with integrated...

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4.615
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3 Comments
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