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2. H-bridge - Wikipedia

   en.wikipedia.org/wiki/H-bridge

   A common variation of this circuit uses just the two transistors on one side of the load, similar to a class AB amplifier. Such a configuration is called a "half bridge". [4] It acts as an electronic toggle switch, the half bridge is not able to switch polarity of the voltage applied to the load.

3. Buck converter - Wikipedia

   en.wikipedia.org/wiki/Buck_converter

   The input is left side, the output with load is right side. The switch is typically a MOSFET, IGBT, or BJT transistor. A buck converter or step-down converter is a DC-to-DC converter which decreases voltage, while increasing current, from its input to its output . It is a class of switched-mode power supply.

4. List of Arduino boards and compatible systems - Wikipedia

   en.wikipedia.org/wiki/List_of_Arduino_boards_and...

   A low cost, high power, shield-compatible, complete Arduino-compatible board kit. Based on the Duemilanove, it comes with a 5 V / 1 A voltage regulator (optional 3.3 V regulator). Designed for low component count and for ease of assembly.

5. Buck–boost converter - Wikipedia

   en.wikipedia.org/wiki/Buck–boost_converter

   The basics of the 4-switch topology. The four-switch converter combines the buck and boost converters. It can operate in either the buck or the boost mode. In either mode, only one switch controls the duty cycle, another is for commutation and must be operated inversely to the former one, and the remaining two switches are in a fixed position.

6. Comparison of single-board microcontrollers - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_single-board...

   Arduino fully compatible board, with integrated power supply and controllers designed for robotics. Compatible as well with the system "Multiplo" eJackino [81] Kit by CQ publisher in Japan. Similar to Seeeduino, eJackino can use Universal boards as Shields. On back side, there is a "Akihabara station" silk, just like Italia on Arduino.

7. Arduino Uno - Wikipedia

   en.wikipedia.org/wiki/Arduino_UNO

   The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller (MCU) and developed by Arduino.cc and initially released in 2010. [2] [3] The microcontroller board is equipped with sets of digital and analog input/output (I/O) pins that may be interfaced to various expansion boards (shields) and other circuits. [1]