Many people know about magnetrons as a source of microwaves which is commonly used in urban areas in their day-to-day activity. The radiation that is used in the oven is transferred using a wave guide. To power the microwave you will need high-voltage transformers.
A magnetron has connected to the output of a high voltage DC power supply. The recent magnetrons use magnets among the items scavenged from rejected units. The heated cathode sits at the center of the large central hole, from which air is evacuated. The magnetic fluctuation and the electricity flow of the magnetron is perpendicular to each other.
The magnetron uses two type of nodes – heater cathode and an anode. The inverter which contains the transformer separates the winding in two portions – high voltage windings and low-voltage windings. Using the high frequency rate, the winding is cut into halves at a periodic rate resulting in high frequency magnetic field in the ferrite core. This is done to provide the current into the winding at the center tap. High frequency high voltage is used from first and added to the magnetron and high frequency low voltage is used from the second and added to the magnetron to generate the required energy to run the microwave.
Voltage and Magnetrons
The magnetrons can be supplied with AC or DC voltage ranging from 3 to 15 V and currents can be between A to 100 A and even above. The filaments voltage has to be provided before which helps in preheating of the oven. The voltage requirement is very important as high voltage can overheat the microwave and result in fire or oven damage.
Deposition speed is fast and the substrate temperature rise is low which makes the damage done to the film very low.Highly industrialized product Magnetrons, can be made using many different type of alloys, metals and oxides.
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