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How to make air core inductor (coil)

An inductor is an electrical component that stores energy in a magnetic field as current flows through it. Inductors are made of an insulated wire that is wound on different types of cores, which can be made of different materials. Many inductors have a ferromagnetic core (Figure 1), which serves…

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How a buck converter works

A buck converter is a type of DC-to-DC converter that is used to step down voltage from its input to its output. It is often referred to as a step-down converter. This converter is widely used in electronic devices. It is so popular because of its simplicity, high efficiency, and…

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How to use Github with STM32cubeIDE in 2023

STM32CubeIDE is a powerful and user-friendly Integrated Development Environment (IDE) for developing and debugging STM32 microcontroller applications. It provides a wide range of features and tools to help developers create high-performance and efficient STM32-based applications. One of the advantages of the STM32CubeIDE is its ability to connect to a Github…

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Single axis used for tilt sensing

Tilt measurement using a single axis accelerometer

A single axis accelerometer is a device that measures acceleration in one direction. It is typically used to measure acceleration along a single axis, such as up and down or left and right. Output of an accelerometer An accelerometer measures acceleration. It can sense both static and dynamic forces of…

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Photodiode biasing

Photodiode biasing (Photoconductive or Photovoltaic mode)

A photodiode is a type of semiconductor device that converts light into an electrical current. It can be used with or without a reverse bias applied. Reverse biasing a photodiode is accomplished by putting the cathode at a greater electric potential than the anode. In other words, a negative voltage…

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DRIVER_0_1 Data transfer sequence

SPI Daisy Chain Example for L6470

The L6470 is a fully integrated motor driver. It provides a complete standalone solution for stepper motor applications. The L6470 is controlled by a host microcontroller (MCU) through a fast 8-bit serial peripheral interface (SPI). Multiple L6470 drivers can be connected in a daisy chain configuration.  Most likely, if you…

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High-voltage current sensing circuit

High voltage current sense circuit

High-side current sensing is used in a wide range of applications. Usually, it is used for overcurrent protection in power management circuits. On the market, there are many off-the-shelf operational amplifiers that can be used to measure current on the high-side power bus. However, a problem occurs when current needs…

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Buck converter circuit

Low-side buck (step-down) converter

A buck converter is a simple type of DC-to-DC converter that produces an output voltage that is less than its input voltage. In other words, this DC-to-DC converter steps down the voltage from its input to its output. Hence, it is also called a step-down converter. Typically, a high-side transistor…

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