ELECTROMAGNETIC INTERFERENCE SUPPRESSING APPARATUS FOR HIGH-FREQUENCY SIGNAL GENERATION DEVICE
First Claim
1. An electromagnetic interference suppressing apparatus for a high-frequency signal generation device, the high-frequency signal generation device comprising an inverter means which is used for converting a direct current signal into a high-frequency alternating current signal, wherein the electromagnetic interference suppressing apparatus includes an electric conductor which is in capacitive or inductive coupling with the high-frequency signal generation device and is connected to the reference zero voltage point of the direct current signal.
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Accused Products
Abstract
The present utility model relates to an electromagnetic interference suppressing apparatus for a high-frequency signal generation device. The high-frequency signal generation device includes an inverter means which is used for converting a direct current signal into a high-frequency alternating current signal, wherein the electromagnetic interference suppressing apparatus includes an electric conductor which is in capacitive or inductive coupling with the high-frequency signal generation device and is connected to the reference zero voltage point of the direct current signal. With the present utility model, the electromagnetic interference generated by the high-frequency signal generation device may be effectively suppressed in the case where a reliable earthing is not achievable. The present utility model relates also to an electronic ballast having the function of suppressing electromagnetic interference, and a fluorescent lamp of a compact type having the function of suppressing electromagnetic interference.
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Citations
5 Claims
- 1. An electromagnetic interference suppressing apparatus for a high-frequency signal generation device, the high-frequency signal generation device comprising an inverter means which is used for converting a direct current signal into a high-frequency alternating current signal, wherein the electromagnetic interference suppressing apparatus includes an electric conductor which is in capacitive or inductive coupling with the high-frequency signal generation device and is connected to the reference zero voltage point of the direct current signal.
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4. An electronic ballast system, comprising an electronic ballast and an electric conductor;
- the electronic ballast includings 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.
- the electronic ballast includings 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;
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5. 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.
- 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;
Specification