Impedance matching — In electronics, impedance matching is the practice of designing the input impedance of an electrical load (or the output impedance of its corresponding signal source) to maximize the power transfer and/or minimize reflections from the load.… … Wikipedia
Active load — An active or dynamic load is a component or a circuit behaving as a current stable nonlinear resistor. This term may refer to a component of circuit design, or to a type of test equipment. Contents 1 Circuit design 1.1 Common base example 1.2… … Wikipedia
Distributed active transformer — is a circuit topology that allows low voltage transistors to be used to generate large amounts of RF (radio frequency) power. Its main use has been in making integrated CMOS power amplifier for wireless applications, such as GSM/GPRS cellular… … Wikipedia
Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… … Wikipedia
Antenna (radio) — Whip antenna on car … Wikipedia
Test probe — Typical passive oscilloscope probe being used for testing an integrated circuit. A test probe (test lead, test prod, or scope probe) is a physical device used to connect electronic test equipment to the device under test (DUT). They range from… … Wikipedia
Operational amplifier — A Signetics μa741 operational amplifier, one of the most successful op amps. An operational amplifier ( op amp ) is a DC coupled high gain electronic voltage amplifier with a differential input and, usually, a single ended output.[1] An op amp… … Wikipedia
Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios … Wikipedia
Common base — Figure 1: Basic NPN common base circuit (neglecting biasing details). In electronics, a common base (also known as grounded base) amplifier is one of three basic single stage bipolar junction transistor (BJT) amplifier topologies, typically used… … Wikipedia
Audio crossover — A passive 2 way crossover designed to operate at loudspeaker voltages Audio crossovers are a class of electronic filter used in audio applications. Most individual loudspeaker drivers are incapable of covering the entire audio spectrum from low… … Wikipedia
DI unit — A DI unit, DI box, Direct Box, or simply DI (variously claimed to stand for direct input, direct injection or direct interface), is a device typically used in recording studios to connect a high impedance, line level, unbalanced output signal to… … Wikipedia