Just like the capacitors a reverse biased p n junction diode also stores electric charge at the depletion region. Both are connected parallel in a circuitthe.
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It was arcing between the top of the magnatron tube and the shielding on the microwave.
Diode on capacitor. In diode bridge circuit the capacitors paralleled with diode to by pass or protect the diodes from the surge or spike voltages. The hv capacitor holds 4000 6000. Generally the use of a varicap diode in a circuit requires connecting it to a tuned circuit usually in parallel with any existing capacitance or inductance.
My main question is did the magnatron possibly go bad and arc causing the diode to blow or would the diode going bad cause the magnatron to arc. A dc voltage is applied as reverse bias across the varicap to alter its capacitance. I tested the diode and it is bad for sure.
This is how the waveform will be after placing the capacitor. Magnetron or diode or both. When voltage is applied to the capacitor charge carriers starts flowing through the conducting wire.
Repair microwave not heating problem kanpur i u. After placing the capacitor as filter the capacitor will get charged quickly due to small resistance of diode and will resist any change in voltage which is the basic property of a capacitor and will discharge very slowly due to load a diode will not conduct during reverse bias and capacitor has to discharge through load since charging time is much less than discharging time we almost get a straight line. The diode is placed across the capacitor for the following purposes.
Capacitors are capable of storing electrical energy directly as an electrostatic field is created between two metal plates. A diode is a type of electrical device that allows the current to move through it in only one direction.
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