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  2. List of Arduino boards and compatible systems - Wikipedia

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

    A real ultra-low power board, capable of running of a single AA. The board counts with an efficient step-up regulator (MCP16251) and can be powered from 0.9 V. The Whisper Node has a built-in RFM69 long-range sub-GHz radio and 4 Mbit flash memory. The board can also run from a standard power supply and use the battery as backup.

  3. CompactPCI - Wikipedia

    en.wikipedia.org/wiki/CompactPCI

    The image above illustrates a 5 V VIO 8-slot backplane. CompactPCI was initially ratified as PICMG 2.0 in late 1995 as a passive backplane for PCI signaling. The 2.x series of specifications from PICMG provide support for a variety of technologies including Hot Swap (PICMG 2.1), Telephony signaling (PICMG 2.5) and most notably the expansion of ...

  4. Operational amplifier applications - Wikipedia

    en.wikipedia.org/wiki/Operational_amplifier...

    Many commercial op-amp offerings provide a method for tuning the operational amplifier to balance the inputs (e.g., "offset null" or "balance" pins that can interact with an external voltage source attached to a potentiometer). Alternatively, a tunable external voltage can be added to one of the inputs in order to balance out the offset effect.

  5. RF power amplifier - Wikipedia

    en.wikipedia.org/wiki/RF_power_amplifier

    A radio-frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [1] Typically, RF power amplifiers are used in the final stage of a radio transmitter , their output driving the antenna .

  6. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    Not to be confused with Printed electronics. "PC board" redirects here. For the mainboard of personal computers, see Motherboard. "Panelization" redirects here. For the page layout strategy, see N-up. Printed circuit board of a DVD player Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and ...

  7. Low-noise amplifier - Wikipedia

    en.wikipedia.org/wiki/Low-noise_amplifier

    A low-noise amplifier (LNA) is an electronic component that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio (SNR). Any electronic amplifier will increase the power of both the signal and the noise present at its input, but the amplifier will also introduce some additional noise.

  8. Transistor - Wikipedia

    en.wikipedia.org/wiki/Transistor

    An amplifier circuit, a common-emitter configuration with a voltage-divider bias circuit The common-emitter amplifier is designed so that a small change in voltage ( V in ) changes the small current through the base of the transistor whose current amplification combined with the properties of the circuit means that small swings in V in produce ...

  9. Differential amplifier - Wikipedia

    en.wikipedia.org/wiki/Differential_amplifier

    A differential amplifier is a type of electronic amplifier that amplifies the difference between two input voltages but suppresses any voltage common to the two inputs. [1] It is an analog circuit with two inputs and + and one output , in which the output is ideally proportional to the difference between the two voltages: