Tags
A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
A device which includes a central processing unit (CPU), memory, and (generally) an assortment of I/O peripherals (UART, ADC, DAC, general-purpose I/O, I2C, etc.) in a tightly-coupled standalone packa…
8374 questions
An electronic device which supplies electrical energy to a load. Can be AC or DC input. Typically DC output.
8173 questions
Be sure to use the Arduino Stack Exchange for questions that are more Arduino and less electronics.
8050 questions
Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be const…
7027 questions
Questions relating to the construction and applications of operational amplifiers, which are DC-coupled high-gain electronic voltage amplifiers with a differential input and, usually, a single-ended o…
6965 questions
The transistor is a semiconductor device that can amplify signals and switch power. Most used types are bipolar (BJT, for Bipolar Junction Transistor), UJT (Unijunction transistor) and MOSFET (FET, fo…
6195 questions
Where power is a primary concern for the design under discussion. Use the "low-power" tag when that applies.
6056 questions
A transconductance (using voltage to control current) electronic component used for switching and amplification. Acronym for Metal-Oxide-Semiconductor Field-Effect Transistor. (from http://en.wikipedi…
5733 questions
An LED is a light-emitting diode. Lighting an LED is considered the "Hello world" of a circuit design, and it can be as simple as putting a series resistor or can get more complicated, involving PWM a…
5563 questions
Circuit (Network) analysis is the process of finding the voltages across, and the currents through, every component in the network.
5541 questions
A fundamental electronic component that stores energy in an electric field, commonly used in filtering applications.
5369 questions
An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy
5289 questions
PCB is the acronym to Printed Circuit Board. A PCB is a carrier for the circuit's components and their electrical connections.
4994 questions
Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A).
4828 questions
An amplifier can be used to adapt the range of the signal to a requirement, to make it more robust for transmission, or to satisfy interface requirement (like input/output impedance)
4197 questions
Digital electronics treats discrete signals, unlike analog electronics that treat continuous signals. Digital logic is used to perform arithmetic operations with electric signals, and constitutes the …
4110 questions
A resistor obeys Ohm's law (V=IR); the current through it is equal to the voltage across it divided by the resistance (equivalently \$I=\frac{V}{R}\$)
3839 questions
About designing the boards which carry the components of an electronic circuit. For questions about getting them built instead use PCB-fabrication. If your question is specific to a certain CAD tool, …
3408 questions
Short for Radio-Frequency. Frequencies at which radiation (intentional or not) plays a role. Typically associated with wireless communications, but also relevant for high-speed PCB design.
3312 questions
a term to describe how a circuit should behaved based on accomplishing a particular task. When designing circuits, one should consider how it works, the target specifications, efficiency, cost effecti…
3225 questions
Diodes are semiconductor components made from a P-type and N-type silicon material, that allows current to only flow in one direction.
3219 questions
An electrical actuator that converts electrical energy into rotational motion or sustained linear motion (linear motor). There are many types of electric motors. If the specific type of motor is known…
3098 questions
A transformer couples two or more AC signals through a magnetic field. Often used as galvanic isolation and to transform one AC voltage to another.
3085 questions
USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.
3074 questions
refers to alternating current mains power. It usually applies to voltages with >100V RMS, but can also be used for ex. 24V industrial AC power.
3031 questions
Devices to interrupt or route a signal or power one of several ways.
3006 questions
Analog circuits have a range of voltages, rather than just two as in digital logic.
3002 questions
A voltage regulator is an analog circuit that produces a stable output voltage that doesn't vary with input voltage or load changes. Switching regulators are much more efficient than linear ones.
2964 questions
The STM32 is the third ARM family by STMicroelectronics. It follows their earlier STR9 family based on the ARM9E core, and STR7 family based on the ARM7TDMI core. The STM32 is based on the ARM Cortex-…
2913 questions
Sensors convert a physical quantity (e.g. temperature, pressure) into an electrical signal.
2824 questions
Questions about designing electronics for measuring, processing, and amplifying audio signals.
2813 questions
A relay is an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches.
2800 questions
A Field-Programmable Gate Array (FPGA) is a logic chip that is configured by the customer after manufacturing—hence "field-programmable".
2779 questions
An integrated circuit (IC) is an electronic circuit built onto a single plate of a semiconductor material, normally silicon. Modern ICs may contain billions of transistors and they have played a major…
2676 questions
PIC is a brand of 8, 16, and 32 bit RISC microcontrollers manufactured by Microchip. "PIC" originally was an acronym for "Peripheral Interface Controller".
2648 questions
An ADC is an Analog to Digital Converter. This device converts analog signals into digital form. It is mainly used by the digital circuitry to take analog measurements.
2643 questions