Voltage-driven describes a system, device, or process whose behavior or output is primarily determined or controlled by an applied voltage. This implies a direct relationship where changes in voltage levels significantly influence the system's operation, such as the amount of current flowing, the state of a switch, or the frequency of oscillations. The system's response is predictable and dependent on the magnitude and characteristics of the voltage signal. The term is frequently used in electronics, electrical engineering, and related fields to characterize various components and circuits.
Voltage-driven meaning with examples
- The light-emitting diode (LED) is a Voltage-driven device. Its brightness is directly proportional to the forward voltage applied, making it ideal for dimming circuits. Changing the voltage changes the current, and therefore, the light emitted. This characteristic is essential in display technologies where precise light control is needed for pixels.
- In a Voltage-driven oscillator circuit, the output frequency is precisely controlled by an input voltage. The circuit's design ensures a consistent relationship between the voltage applied and the generated frequency, making it suitable for applications like frequency modulation or signal generation for communication systems.
- A field-effect transistor (FET) operates as a Voltage-driven switch. Applying a specific voltage to the gate terminal controls the current flow between the source and drain, effectively turning the transistor on or off. This functionality is essential for digital logic circuits like microprocessors and memory devices.
- The piezoelectric effect in a crystal is voltage-driven. Applying a voltage across the crystal causes mechanical deformation. This property is utilized in transducers, such as those found in microphones and accelerometers, to convert voltage signals into mechanical motion or force.
- A Voltage-driven amplifier increases the amplitude of an input voltage signal. Its design ensures that the output voltage is proportional to the input voltage, providing signal amplification while maintaining the signal's shape and frequency. This is vital in audio and radio systems.