Abstract: An electric leakage detecting device of an in-vehicle power supply system includes a detection signal generating unit which applies AC voltage to a voltage applying point on an electric cable connecting a power converting circuit which converts power from a power source to AC power to supply to a motor to the power source; a voltage measuring unit which measures voltage at a voltage measuring point between the detection signal generating unit and the voltage applying point; and an electric leakage detecting unit which detects whether there is electric leakage between the power converting circuit and the motor according to the voltage at the voltage measuring point measured by the voltage measuring unit when a control device of the motor provides an instruction to maintain a rotational angle constant to the motor.

Abstract: A turn lamp to be mounted on a door mirror of a vehicle, the turn lamp includes a housing; a light source; and a substrate having a feeder circuit for the light source, wherein: the substrate is placed in the housing such that a plane direction of the substrate faces a horizontal direction when the door mirror is mounted to a vehicle body, and the light source is placed on the substrate such that an irradiation direction of the light source is parallel to the plane direction of the substrate.

Abstract: A vehicle lamp includes a long solid-core shaped light guide; a first light source that irradiates an end portion of the long solid-core shaped light guide in a longitudinal direction such that light is radiated long from an end side of the vehicle lamp toward another end side of the vehicle lamp; and a second light source that irradiates the another end side of the vehicle lamp to a lateral outer side.

Abstract: A turn lamp to be mounted on a door mirror of a vehicle, the turn lamp includes a housing; a light source; and a substrate having a feeder circuit for the light source, wherein: the substrate is placed in the housing such that a plane direction of the substrate faces a horizontal direction when the door mirror is mounted to a vehicle body, and the light source is placed on the substrate such that an irradiation direction of the light source is parallel to the plane direction of the substrate.

Abstract: A door mirror has a turn lamp that can be mounted easily and without an increased size. The turn lamp (2) has a housing (3) and an outer lens (4) that are formed by molding. A light emitting diode (6) is mounted in the housing (3), and the outer lens (4) covers the housing (3). The housing (3) and the outer lens (4) are integrated by a joint (7) produced by injection molding and placed at a butt section at which the housing (3) and the outer lens (4) are butted together. Steps (7c, 7d) are formed at the butt section integrated by the joint (7) of the turn lamp (2), and a lower end edge section (1c) and a left end edge section (1e) that form an opening (1b) of a body (1) of the door mirror (DM) are butted to the steps (7c, 7d).

Abstract: A door mirror has a turn lamp that can be mounted easily and without an increased size. The turn lamp (2) has a housing (3) and an outer lens (4) that are formed by molding. A light emitting diode (6) is mounted in the housing (3), and the outer lens (4) covers the housing (3). The housing (3) and the outer lens (4) are integrated by a joint (7) produced by injection molding and placed at a butt section at which the housing (3) and the outer lens (4) are butted together. Steps (7c, 7d) are formed at the butt section integrated by the joint (7) of the turn lamp (2), and a lower end edge section (1c) and a left end edge section (1e) that form an opening (1b) of a body (1) of the door mirror (DM) are butted to the steps (7c, 7d).

Abstract: A turn lamp includes a base housing; a light source unit incorporated with a light source and housed in the base housing; an inner housing provided with a long and solid light guide; a lens cover that covers the base housing; and a diffused reflection generator that is structured such that light from the light source leaks out long from the light guide.

Abstract: A vehicle lamp includes a long solid-core shaped light guide; a first light source that irradiates an end portion of the long solid-core shaped light guide in a longitudinal direction such that light is radiated long from an end side of the vehicle lamp toward another end side of the vehicle lamp; and a second light source that irradiates the another end side of the vehicle lamp to a lateral outer side.

Abstract: A turn lamp includes a base housing; a light source unit incorporated with a light source and housed in the base housing; an inner housing provided with a long and solid light guide; a lens cover that covers the base housing; and a diffused reflection generator that is structured such that light from the light source leaks out long from the light guide.

Abstract: In a circuit that controls the mean current flowing to a load 40 by turning ON or OFF in predetermined ratio the power source voltage VB applied to load 40 using for this purpose a switch means Sw1, a capacitor C1 is charged with the potential difference generated between the load 40 and power source whilst switch means Sw1 is OFF, and a voltage for control purposes which exceeds power source voltage VB is applied to drive circuit 20 using this stored voltage. A high side switch can thereby be implemented using N type semiconductor elements in a simple circuit.

Abstract: In a circuit that controls the mean current flowing to a load 40 by turning ON or OFF in predetermined ratio the power source voltage VB applied to load 40 using for this purpose a switch means Sw1, a capacitor C1 is charged with the potential difference generated between the load 40 and power source whilst switch means Sw1 is OFF, and a voltage for control purposes which exceeds power source voltage VB is applied to drive circuit 20 using this stored voltage. A high side switch can thereby be implemented using N type semiconductor elements in a simple circuit.

Abstract: An inductive load drive device comprising a DC--DC converter circuit which has a coil (L) and switch (Sw) in series with a power source (E) and a capacitor (C) provided in parallel with the switch (Sw). The DC--DC converter produces a high voltage by a procedure in which the switch (Sw) is closed to apply the power source voltage to the coil (L) and then the switch (Sw) is opened to transfer the magnetic energy stored in the coil (L) to the capacitor (C). Using a permanent magnet (Mg), a bias in the direction opposite to that of the magnetic flux induced by the current is applied to the magnetic core of the coil (L) so as to increase the magnetic energy stored in the coil (L). Thus, a DC--DC converter circuit in which a capacitor is efficiently charged through a small-sized coil is realized, and an inductive load drive device having a small size and a light weight is also realized.