Zener Diode
Purpose
Zener diode with controlled reverse breakdown voltage
Library
Electrical / Power Semiconductors
Description
The Zener diode is a type of diode that permits current to flow in forward
direction like a normal diode, but also in reverse direction if the voltage is larger than
the rated breakdown or Zener voltage. Zener diodes are widely used to regulate the
voltage across a circuit.
Parameters
-
Zener voltage
- Breakdown voltage
in reverse direction, in volts (V). If the
diode is reverse conducting the voltage drop across the diode is determined by
this Zener voltage plus the voltage across the Zener resistance.
-
Zener resistance
- The resistance
, in ohms (
), if the diode is reverse
conducting.
-
Forward voltage
- Additional dc voltage
in volts (V) between anode and
cathode when the diode is forward conducting. The default is 0.
-
On-resistance
- The resistance
of the forward conducting device, in ohms
(
). The default is 0.
Probe Signals
-
Diode voltage
- The voltage measured between anode and cathode.
-
Diode current
- The current through the diode flowing from anode to cathode.
-
Forward conductivity
- Conduction state of the positive internal switch. The signal
outputs 1 when the diode is conducting in forward direction, and 0 otherwise.
-
Reverse conductivity
- Conduction state of the negative internal switch. The signal
outputs 1 when the diode is conducting in reverse direction, and 0 otherwise.