Can a diode control voltage?

The Zener Diode is used in its “reverse bias” or reverse breakdown mode, i.e. the diodes anode connects to the negative supply. This ability of the zener diode to control itself can be used to great effect to regulate or stabilise a voltage source against supply or load variations.

Which is a controlled device voltage and current?

In any (electronic) device controlling parameter is current it is called current controlled device. eg bilpolar transistor- output current is a function of base current. In any (electronic) device controlling parameter is voltage it is called voltage controlled device.

Which device is a voltage controlled device?

A voltage-controlled resistor (VCR) is a three-terminal active device with one input port and two output ports. The input-port voltage controls the value of the resistor between the output ports. VCRs are most often built with field-effect transistors (FETs). Two types of FETs are often used: the JFET and the MOSFET.

Can diode control current flow?

Fundamentally, a diode is a component that permits current to flow in a single direction and blocks it in the other direction. Diodes allow current to flow in one direction without the effects of any impedance, while entirely blocking all flow of current flow in the other.

Which are current controlled devices?

Detailed Solution

Which one is current controlled device?

Whereas the bipolar transistor can be considered a current-controlled device (the current in the base), the field effect transistor is a voltage-controlled device. The field effect transistor, or FET, has the symbol shown in Figure 11.17 shows the family of transistors.

What are current controlled device?

A BJT is a current controlled device because its output characteristics are determined by the input current. A FET is voltage controlled device because its output characteristics are determined by the Field which depends on Voltage applied.

Which device is current controlled device?

Can diode be used as voltage source?

But the answer was: A diode cannot be used as a voltage source. The potential opposes current and produces an equilibrium condition, not a source of energy.

What is diode voltage?

In a small silicon diode operating at its rated currents, the voltage drop is about 0.6 to 0.7 volts. The value is different for other diode types—Schottky diodes can be rated as low as 0.2 V, germanium diodes 0.25 to 0.3 V, and red or blue light-emitting diodes (LEDs) can have values of 1.4 V and 4.0 V respectively.