Electromagnetic interference suppressing apparatus for high-frequency signal generation device

An electronic ballast system, comprising an electronic ballast and an electric conductor;

• the electronic ballast including a rectifying means for converting a low-frequency alternating current signal into a direct current signal and an inverter means for converting the direct current signal into a high-frequency alternating current signal;
• the electric conductor being disposed around the electronic ballast, coupled to the electronic ballast via a capacitor or an inductor and connected to the reference zero voltage point of the direct current signal, wherein said capacitor or inductor allows the alternating current to pass through while insulating the direct current and allows the high frequency to pass through while blocking the low frequency and wherein the electric conductor is short-circuited to the reference zero voltage point of the electronic ballast and the interference voltage formed by the high-frequency interference signal together with the reference zero voltage point, forms a loop circuit, and is converted into an internal load of the electronic ballast.

An energy-saving lamp of a compact type, comprising a lamp enclosure portion;

• the enclosure portion being provided with an electronic ballast inside, and the electronic ballast including a rectifying means for converting a low-frequency alternating current signal into a direct signal and an inverter means for converting the direct current signal into a high-frequency alternating current signal;
• the lamp enclosure portion including a metal enclosure inside, the metal enclosure being disposed between the electronic ballast and the lamp enclosure, coupled to the electronic ballast via a capacitor or an inductor and connected to the reference zero voltage point of the direct current signal in the electronic ballast wherein said capacitor or inductor allows the alternating current to pass through while insulating the direct current and allows the high frequency to pass through while blocking the low frequency and wherein the electric conductor is short-circuited to the reference zero voltage point of the electronic ballast and the interference voltage formed by the high-frequency interference signal together with the reference zero voltage point forms a loop circuit and is converted into an internal load of the electronic ballast.