Abstract: Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil.

Abstract: The charging pad 10 is provided with a position detection controller 14 that supplies position detection signals to position detection coils 30, and detects induction coil 51 position from echo signals output from the induction coil 51. The device housing a battery 50 is provided with a series capacitor 55 connected in series with the induction coil 51, a parallel capacitor 56 connected in parallel with the induction coil 51, and a switching circuit 57. When the position detection controller 14 is issuing position detection signals, the parallel capacitor 56 is connected to the induction coil 51. When power is transmitted from the power supply coil 11 to the induction coil 51, the parallel capacitor 56 is not connected to the induction coil 51 and induction coil 51 AC is output to a rectifying circuit 53 through the series capacitor 55.

Abstract: A battery-containing unit and a charging base are a battery-containing unit includes a lithium ion battery, and a charging base to which the battery-containing unit to be charged is placed. The battery-containing unit includes a charging circuit that converts an alternating current produced in an energized coil into a direct current, and a transmitter that detects the voltage of the lithium ion battery and transmits a voltage signal to the charging base. The charging base includes a receiver that receives the signal from the transmitter and detects the voltage signal, and a high frequency power supply that provides AC power to the energizing coil The power supply of the charging base detects the voltage of the lithium ion battery through the receiver and the transmitter, and is controlled to charge the lithium ion battery so that the voltage of lithium ion battery does not exceed a predetermined voltage.

Abstract: Mobile electronic equipment incorporating an induction coil and a battery; and a battery charger cradle for recharging the battery in the mobile electronic equipment. Regarding the charger cradle, a bottom surface of a mounting portion is curved in a U-grooved shape, and a primary coil is incorporated inside the U-grooved bottom surface, with the primary coil being connected to a power source. Regarding the mobile equipment, its rear surface placed on the mounting portion of the charger cradle is curved to match with the U-grooved bottom surface, and the induction coil is incorporated inside the curved rear surface. When the mobile equipment is placed on the mounting portion of the charger cradle, the electric power is carried from the primary coil to the induction coil which are electromagnetically coupled with each other, and the battery in the mobile equipment is recharged by the electric power induced to the induction coil.

Abstract: In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism moving the primary coil along an inner surface of the top plate, and a position detection controller detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil to be brought closer to the induction coil in the battery built-in device.

Abstract: There is provided a circuit with control function including a circuit to be controlled so as to be operated only if a predetermined environment meets a specific condition and being arranged to detect, in any predetermined environment, whether or not the circuit with control function is normally operated, and a test method thereof. The circuit with control function includes a controller (microcomputer) for operating the circuit to be controlled (a heater) only if a predetermined environment (ambient temperature) detected by a sensor (a first temperature sensor) meets a specific condition (0° or below).

Abstract: A heater controller that ensures required characteristics and operation for a control rectifying element even in a freezing environment. The control rectifying element is for connection to a heater and an AC power supply for supplying AC voltage to the heater, in which the control rectifying element controls the supply of AC voltage to the heater. The control unit outputs a pulse signal for serving as a trigger for holding the control rectifying element in an activated state based on a zero-cross timing of the AC voltage. When the control rectifying element is not held in the activated state by the pulse signal output from the control unit at the zero-cross timing, the control unit delays the output of the pulse signal from the zero-cross timing while keeping the pulse width of the pulse signal constant until the control rectifying element is held in the activated state.

Abstract: A sensor 13 is inserted into a connector 14. A constant voltage required to obtain a response current is applied across the connector 14 by a voltage applying source 15 at timings required. A response current of the sensor 13 inserted into the connector 14 is converted into a voltage by a current-to-voltage converter 16, and the amount thereof is determined by a microcomputer, the analysis results being displayed onto a display unit.