Search results
In electronics, a step recovery diode (SRD, snap-off diode or charge-storage diode or memory varactor [a]) is a semiconductor junction diode with the ability to generate extremely short pulses. It has a variety of uses in microwave (MHz to GHz range) electronics as pulse generator or parametric amplifier .
26 paź 2023 · The step recovery diode, also known as the snap-off diode or charge-storage diode, is a high-speed semiconductor device used in various applications, such as frequency multipliers, pulse generators, and fast-switching circuits.
This application note explains how to calculate turn-off power losses generated by an ultrafast diode, by taking into account the recovery parameters and their temperature dependency. Such losses appear when the diode changes from the forward conduction phase to the reverse conduction phase.
14 lip 2024 · A Step Recovery Diode (SRD) is a special type of semiconductor diode also called as snap-off diode, charge storage diode and memory varactor diode. Step recovery diodes are having a different style of doping.
Step recovery diodes produce an abrupt turn-off (step) time by allowing a very fast release of stored charge when switching from forward to reverse bias, and from reverse to forward bias. Single step recovery diodes consist of one diode built into the chip.
The snap-off current of a step-recovery diode is rich in harmonics and can be filtered to give a sinusoidal wave of a higher frequency. Because of this, step recovery diodes are useful in frequency multipliers, circuits whose output frequency is a multiple of the input frequency.
Step recovery diode works as an ordinary diode at low frequency i.e. they conduct when forward biased and acts as an open circuit in reverse biased mode. But when it is switched from forward biasing to reverse biasing it changes state instantly.
