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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4.811
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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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2.935
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0 Comments
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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2.266
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0 Comments
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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2.794
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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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4.495
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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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4.588
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3 Comments
Low Voltage Lead Acid Battery Disconnect board – Prevents Deep Discharge Of 12V Lead Acid Battery

Low Voltage Lead Acid Battery Disconnect board – Prevents Deep Discharge Of 12V Lead Acid Battery

This project helps to optimize the 12V lead-acid (SLA) battery life as it prevents the battery from going into deep discharge. It is very important to disconnect the load before the battery enters into deep discharge as this may destroy or damage the battery cells.  The circuit shown...

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3.144
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1 Comments
High Side Switch with Input Overvoltage and Overcurrent Protection

High Side Switch with Input Overvoltage and Overcurrent Protection

The project here is a 48V protected, high side switch designed to switch a 5A output load from input voltages from 8V to 48V. The circuit helps the user to easily ON/OFF the high current and voltage load with over-voltage lockout and over-current protection. The wide input range and...

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2.666
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0 Comments
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