In the microwave circuit , the main role of high-voltage capacitor is " doubler " effect. High-voltage capacitors and high voltage diode half-wave voltage doubler rectifier circuit , the AC voltage 2100V high voltage transformer secondary output , after a half-wave voltage doubler rectifier can obtain the required anode magnetron 4200V DC high voltage , and can reduce the high voltage transformer weight and reduce the volume. The second effect is that it 's high voltage capacitor "energy " effect. The high-voltage transformer with a microwave oven is not a common ordinary transformer , but a with a " magnetic flux leakage " feature high-voltage transformers , the use of " magnetic flux leakage " principle reaches a microwave magnetron filament voltage , the anode voltage is automatically regulated purposes, but because the presence of leakage current phase lag effect of microwave energy causes reduced efficiency , and high voltage capacitor reactance exactly electrical leakage characteristics and anti contrary , can lead the current phase . Leakage inductance of the current phase lag with good compensation, according to information on microwave power factor can be increased to over 95 %.xwRservice manual download site
 xwRservice manual download site

Rated working voltage capacitor voltage is generally 1800 ~ 2100V, capacity is generally 0.8 ~ l_2μF ± 2%, another about an internal capacitor in parallel with a high value resistor 10MΩ . After the shutdown of a high-voltage capacitor discharge resistors.xwRservice manual download site