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…
8586 questions
An electronic device which supplies electrical energy to a load. Can be AC or DC input. Typically DC output.
8424 questions
Be sure to use the Arduino Stack Exchange for questions that are more Arduino and less electronics.
8231 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…
7269 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…
7242 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…
6368 questions
Where power is a primary concern for the design under discussion. Use the "low-power" tag when that applies.
6240 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…
5956 questions
Circuit (Network) analysis is the process of finding the voltages across, and the currents through, every component in the network.
5767 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…
5687 questions
A fundamental electronic component that stores energy in an electric field, commonly used in filtering applications.
5542 questions
An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy
5447 questions
PCB is the acronym to Printed Circuit Board. A PCB is a carrier for the circuit's components and their electrical connections.
5164 questions
Flow of electric charge - typically movement of charge carriers, such as electrons. Measured in amperes (A).
5000 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)
4291 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 …
4205 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}\$)
3970 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, …
3523 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…
3422 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.
3410 questions
Diodes are semiconductor components made from a P-type and N-type silicon material, that allows current to only flow in one direction.
3297 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.
3200 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…
3177 questions
USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.
3160 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.
3110 questions
Analog circuits have a range of voltages, rather than just two as in digital logic.
3102 questions
Devices to interrupt or route a signal or power one of several ways.
3083 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.
3064 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-…
3035 questions
A relay is an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches.
2898 questions
Questions about designing electronics for measuring, processing, and amplifying audio signals.
2886 questions
Sensors convert a physical quantity (e.g. temperature, pressure) into an electrical signal.
2880 questions
A Field-Programmable Gate Array (FPGA) is a logic chip that is configured by the customer after manufacturing—hence "field-programmable".
2808 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…
2747 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.
2734 questions
Please specify the battery type in your question. Include chemistry (e.g. lead-acid), voltage, number of cells and how they are connected (series or parallel), capacity (in A·h or W·h).
2676 questions