Abstract:
PROBLEM TO BE SOLVED: To provide a small-sized connector with a built-in filter which is strong to common mode noise, to a connector using a conventional common mode choke coil.SOLUTION: Between a plurality of first external connection terminals connected to a counterpart side connector and a second external connection terminal connected to another apparatus, common mode filters are provided. The common mode filter has magnetic body layers including magnetic bodies as outer layers on both sides, and a plurality of coil layers and ground layers as an inner layer. On at least any one of the magnetic body layers, a first extraction electrode and a third extraction electrode connected to the first extraction electrode are provided, and a second extraction electrode and a forth extraction electrode connected to the second extraction electrode are provided. On at least the other one of the magnetic body layers, a first ground electrode and a second ground electrode connected to a ground conductor are provided. The third extraction electrode, the fourth extraction electrode, and the second ground electrode are connected to the second external connection terminal.
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting apparatus that can reduce disturbance voltage.SOLUTION: The lighting apparatus 10 includes a casing 12, an electric path, and a noise filter circuit 16. A lighting-circuit built-in lamp 11 is arranged in the casing 12. The electric path supplies external power supply to the lighting-circuit built-in lamp 11. The noise filter circuit 16 is installed in the electric path and reduces the disturbance voltage.
Abstract:
PROBLEM TO BE SOLVED: To provide an output connector for condenser microphone that has a securer electromagnetic shielding function.SOLUTION: The three-pin type output connector 10A for the condenser microphone has one pin #1 for grounding and two pins #2 and #3 for signal provided penetrating a connector base, and is mounted on an end in a microphone case 30. The output connector for the microphone includes a circuit board 14, mounted with a capacitor element 14a for high-frequency current bypassing connected between the pin #1, and pins #2 and #3 respectively, and a shield cover 15, covering the entire surface of the circuit board 14, on a base inner surface side of the connector base 11 inside the microphone case 30 so that respective pins are inserted. A magnetic sheet 40 having pin insertion holes substantially equal in diameter to the respective pins is attached to an outer surface and/or an inner surface of the shield cover 15.