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.
Anything related to transfer functions, i.e. those complex-valued functions of a complex variable used to model mathematically the I/O relationship of linear time-invariant initially-at-rest system us…
A circuit that converts a signal from one form to another. Analog to digital, Digital to analog, Voltage to current, Current to voltage etc. The key to understanding is the transformational properti…
An effect in semiconductors, the name of a diode that uses that effect and more generally any diode that has similar characteristics to a zener diode. Zener diodes have the unique characteristic of a …
a process whereby information from an output of a signal is used (intentionally or unintentionally) to alter the input of the same signal. Commonly used in operational amplifiers. An every…
a type of EEPROM which is page-eraseable. It's commonly used for microcontroller program memory and code storage. You can use this tag for questions about this type of memory as well as que…
Questions on the implementation of Wi-Fi (802.11) hardware. Note shopping questions are off-topic.
Questions relating systems powered by a 12 volt supply. This may include automotive systems and lead-acid batteries that are nominally 12 volts although be aware that under many conditions the actual …
the process of designing a PCB including placement of parts and routing of traces.
for circuits that only contain passive components, such as resistors, capacitors, and inductors. This includes RC, RL, LC, and RLC circuits.
a branch of electronics related to identifying and solving problems caused by electromagnetic interference (EMI) between devices. It encompasses both attempting …
Switching can be defined as the change in state whether it be an analog, digital, or mechanical device. For digital devices, switching can be defined as a transition from HIGH to LOW or vice versa. Fo…
Battery and battery operated devices' charging methods and problems encountered relevant to charging.
LED Strips come in two designs, both on Flex Printed Circuits (FPC). 1. Simple LED + Resistor versions, typically with multiple parallel segments of three LEDs with matching resistors. 2. Digitally co…
AC power with three legs run 120 degrees out of phase
the electrical standard used on most serial ports. Note that this standard is a +/- 15 volt system and requires a FDMI converter to make it compatible with TTL logic levels.
Any circuit for driving a motor that's more complex than wiring it to a power source. H-bridges, brushless motor controllers, stepper controllers, VFDs, etc.
Piezo-electric device cut at a specific resonance frequency, mostly used in oscillators.
non-zero during normal operation becoming very low
A transmission line may refer to a cable or assembly that is designed to carry radio frequencies and must consider the wave nature of the signal. Coaxial cable is an example of a transmission line. …
the creator of microcontrollers like the AVR line (ATMega and ATtiny) and SAM devices. Arduino microcontrollers use Atmel's AVR line of devices.
A digital circuit that literally "counts" - it progresses through a sequence of states that are representative of some value. It need not count in a natural progression i.e. 1,2,3,4,5 etc. to be cons…
A circuit that accepts a small-signal digital input and produces as output a high current appropriate for driving the gate of a power MOSFET. See also [tag:gate-driving].
Simply the ratio of output signal to input signal, this dimensionless quantity is a measure of the amplification of a signal which may be represented by voltage, current of may even have a digital rep…
a switching device that accepts a small control signal to control a larger load current and/or voltage. In many ways they perform the same function as an electromechanical…
the property by which a change in current in a conductor induces a voltage both in the conductor itself and nearby inductors, the latter being the basis upon which transformers operate. …
a device which converts an electrical audio signal into a corresponding sound. Questions about fixing speakers will be closed as off-topic.
a tag about anything generates photons in the visible spectrum
The CPU, known as the Central Processing Unit, is known as the heart of the computer. It is responsible for carrying out the instructions of a computer program by performing the basic arithmetic, logi…
Questions regarding Li-Po batteries (Lithium-ion Polymer, Polymer Lithium Ion or more commonly known as Lithium Polymer), including proper charging and usage.
In the case of an electronic circuit, series refers to components connected in such a way that current must pass through each in a single path.