Applications of Freewheeling Diode
- Freewheeling diode is used in the relay drivers, H-bridge motor drivers, and full-wave rectifiers.
- Freewheeling diode is used in power circuits to drive the inductive load.
- It is used to protect the circuits from damage caused by sudden disturbances.
- To control the strong counter Electromotive force ,the freewheeling diode is used with a relay coil.
- It makes sure to get a smooth path for current flow during the disturbances in the circuit and prevents harm to sensitive parts.
- This diode is used to protect the switching devices.
Freewheeling Diode
In an Electrical circuit, a Diode is a semiconductor device that acts like a one-way switch (it allows current to flow in one direction and restricts the current to flow in another direction). Semiconductor is made up of p-type and n-type materials. Semiconductors have conductivity between conductors and insulators. To control the Load voltage, a switching element is used to switch at a particular frequency.
A severe high voltage occurs at the time the switching element is activated due to the stored energy within the magnetic field of the inductive load coming across the switching element terminals in switch OFF condition which may destroy the switching element. To distribute this energy, a Freewheeling diode is used. The Load can be short-circuited at the time the switching element is inactivated. The energy stored in the magnetic field is degenerate like heat.
Table of Content
- What is a Freewheeling Diode?
- Basics of Flyback Converters
- Operation
- Importance in Inductive Load Circuits
- Advantages
- Disadvantages
- Applications
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