Cutter And Method of Controlling Cutter

A cutter device comprising:

• a cutting system configured to cut a cable, the cutting system including a first blade and a second blade configured to receive a voltage of electrostatic charge applied from the cable;
• an amplifier circuit configured to amplify a signal for the voltage of electrostatic charge detected by the cutting system;
• a live-line detection circuit configured to determine, based on the signal amplified by the amplifier circuit, that the cable is live;
• a controller configured to cut off power supplied to the cutting system based upon the cable being determined to be live by the live-line detection circuit;
• a first main body connected to a lower portion of the cutting system;
• and
• a second main body disposed on a lower portion of the first main body and including a power supply circuit,
• wherein the power supply circuit is configured to supply power to the cutting system and the controller, and
• wherein a magnitude of a voltage of power supplied to the controller is less than a magnitude of power supplied to the cutting system.

A cutter device comprising:

• a cutting system configured to cut a cable and including a first blade and a second blade configured to receive a voltage of electrostatic charge applied from the cable;
• an amplifier circuit configured to amplify a signal of the voltage of electrostatic charge detected by the cutting system;
• a live-line detection circuit configured to determine, based on the signal amplified by the amplifier circuit, that the cable is live;
• a controller configured to cut off power supplied to the cutting system based upon the cable being determined to be live by the live-line detection circuit;
• a first main body connected to a lower portion of the cutting system;
• a second main body on a lower portion of the first main body and including a power supply circuit;
• a live-line detection integrated circuit (IC) included in the live-line detection circuit;
• and
• a micro control circuit included in the controller,
• wherein the power supply circuit includes a power separation and decompression circuit configured to supply power to the cutting system and the controller, respectively, and configured to restrict noise generated between the power supply circuit and the controller,
• wherein the controller and the cutting system are each independently connected to the power supply circuit,
• wherein the power separation and decompression circuit comprises a switch circuit, a battery circuit, and a power separation circuit that are electrically connected to each other, and a magnitude of a first voltage of the battery circuit operated by the switch circuit is greater than a magnitude of a second voltage transmitted from the battery circuit to the power separation circuit, and
• wherein the live-line detection IC and the micro control circuit are electrically connected to the power separation circuit, and a magnitude of a third voltage transmitted from the power separation circuit to each of the live-line detection IC and the micro control circuit is less than the magnitude of the second voltage.