Abstract: A composition for a wire coating member having flame retardancy that is heat resistant and productive without using electron irradiation crosslinking, and an insulated wire and a wiring harness having the same. The insulated wire includes a wire coating member containing the composition for the wire coating member that contains water-crosslinkable polyolefin containing polyolefin that is modified by a silane coupling agent, unmodified polyolefin, modified polyolefin that is modified by a functional group, a bromine flame retardant, a cross-linking catalyst, a phenolic antioxidant, and either one of a zinc sulfide, and a zinc oxide and an imidazole compound. The insulated wire is prepared by extrusion-coating a conductor with the composition to form the wire coating member around the conductor, and the wire coating member is water-crosslinked.

Abstract: A composition for a wire coating member having flame retardancy that is heat resistant and productive without using electron irradiation crosslinking, and an insulated wire and a wiring harness having the same. The insulated wire includes a wire coating member containing the composition for the wire coating member that contains water-crosslinkable polyolefin containing polyolefin that is modified by a silane coupling agent, unmodified polyolefin, modified polyolefin that is modified by a functional group, a bromine flame retardant, a cross-linking catalyst, a phenolic antioxidant, and either one of a zinc sulfide, and a zinc oxide and an imidazole compound. The insulated wire is prepared by extrusion-coating a conductor with the composition to form the wire coating member around the conductor, and the wire coating member is water-crosslinked.

Abstract: Provided is a composition for a wire coating material that is capable of achieving heat resistance and a mechanical property at the same time even if silane crosslinking and magnesium hydroxide that is made from a natural mineral are used in combination. The composition contains (A) silane-grafted polyolefin that defines polyolefin onto which a silane coupling agent is grafted, (B) unmodified polyolefin, (C) modified polyolefin that is modified by a functional group, (D) magnesium hydroxide that is made from a natural mineral, and (E) a cross-linking catalyst. Provided is an insulated wire including a wire coating material that contains the composition that is silane-crosslinked. Provided is a wiring harness including the insulated wire.

Abstract: A chopper comparator includes an input voltage conversion circuit, a reference voltage input circuit and a comparison amplifier. The input voltage conversion circuit is applied to an input voltage. The input voltage conversion circuit converts the input voltage to a converted input voltage that is lower than a first voltage. The reference voltage input circuit provides a reference voltage. The comparison amplifier compares a voltage of the converted input voltage with the reference voltage and amplifies a result of the comparison. The comparison amplifier includes an inverter having a withstand voltage substantially equal to the first voltage.

Abstract: A chopper comparator includes an input voltage conversion circuit, a reference voltage input circuit and a comparison amplifier. The input voltage conversion circuit is applied to an input voltage. The input voltage conversion circuit converts the input voltage to a converted input voltage that is lower than a first voltage. The reference voltage input circuit provides a reference voltage. The comparison amplifier compares a voltage of the converted input voltage with the reference voltage and amplifies a result of the comparison. The comparison amplifier includes an inverter having a withstand voltage substantially equal to the first voltage.