Hook up a magnetron

hook up a magnetron

How does a magnetron work?

And the magnetic field is generated by using a permanent magnet. The excitation to the cathode of the magnetron is provided by a dc supply which causes the emergence of electrons from it. Here in this section, we will discuss the working of magnetron under two categories.

What power supply do I need to operate the magnetron?

In order to operate, the Magnetron requires 2 power supplies: The filament power supply serves to heat up the filament to a temperature high enough to emit a sufficient number of free electrons. This supply can provide an AC or DC voltage, with typical voltages ranging from 2.5 V to 15 V, and currents ranging from a few A to 100 A and above.

What is a high power magnetron?

High power Magnetrons and Magnetrons with variable output power utilise electronic control systems to supervise and adjust the high tension supply, anode current, output power and filament heating. These control systems should be checked on a regular basis, latest before the installation of a new Magnetron.

What is the voltage of a magnetron source?

It is around 34 V for the insulating film but more than 6 kV for the metal surface. The magnetron sources have the advantage of the magnetic field which tends to make the arc move because of the electron precession caused by the crossed magnetic and electric fields.

What is the working principle of magnetron?

The operating principle of a magnetron is such that when electrons interact with electric and magnetic field in the cavity then high power oscillations get generated. Magnetrons are majorly used in radar as being the only high power source of RF signal as a power oscillator despite a power amplifier. It was invented in the year 1921 by Albert Hull.

What happens when you turn on a magnetron?

If you switched on a simple magnetron like this, electrons would boil off from the cathode and zip across to the anode in straight lines (shown by the black arrow) much like the electron beam in a TV set. But there are two added extra bits in a magnetron that change things completely.

Why does an electron move in a magnetron?

This is so because the moving electron does not experience the effect of the magnetic field and moves in a straight path. In case a small magnetic field exists inside the magnetron then the electron emerging from the cathode will slightly deviate from its straight path.

How does a magnetron work on a TV?

They accelerate down the glass tube, attracted by a positively charged terminal or anode and reach such high speeds that they race past and crash into the phosphor screen at the tubes end. But a magnetron doesnt have the same purpose in life as a TV.

What is the voltage of a magnetron?

Operation of Magnetrons. This supply can provide an AC or DC voltage, with typical voltages ranging from 2.5 V to 15 V, and currents ranging from a few A to 100 A and above. The filament voltage has to be applied some time before the cathode voltage so the filament has sufficient time to pre-heat.

What power supply do I need to operate the magnetron?

In order to operate, the Magnetron requires 2 power supplies: The filament power supply serves to heat up the filament to a temperature high enough to emit a sufficient number of free electrons. This supply can provide an AC or DC voltage, with typical voltages ranging from 2.5 V to 15 V, and currents ranging from a few A to 100 A and above.

What is the high tension power supply of a magnetron?

The high tension supply is the actual power supply of the Magnetron, as it provides the energy for the acceleration of the electrons. The high tension supply is always a DC supply, depending on the output power and application different types of power supplies are available.

What is the working principle of magnetron?

The operating principle of a magnetron is such that when electrons interact with electric and magnetic field in the cavity then high power oscillations get generated. Magnetrons are majorly used in radar as being the only high power source of RF signal as a power oscillator despite a power amplifier. It was invented in the year 1921 by Albert Hull.

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