Abstract: A switching output circuit is provided that enables an accurate control of output power. To achieve the objective, a switching output circuit according to an exemplary aspect of the present invention includes eight switching means, two electric storage means, and a control means, wherein the control means controls the switching means and switches a conduction state and a non-conduction state, by which the power supplied from a direct-current power supply is switched and supplied to an inductive load.

Abstract: A pulsed discharge device according to an exemplary aspect of the present invention includes a controller configured to determine an interruption time to a discharge time based on a predetermined time ratio between the discharge time and the interruption time when performing a pulsed discharge to repeat alternately a discharge and a pause in discharging of a chemical battery.

Abstract: A pulsed discharge device according to an exemplary aspect of the present invention includes a controller configured to determine an interruption time to a discharge time based on a predetermined time ratio between the discharge time and the interruption time when performing a pulsed discharge to repeat alternately a discharge and a pause in discharging of a chemical battery.

Abstract: A switching output circuit is provided that enables an accurate control of output power. To achieve the objective, a switching output circuit according to an exemplary aspect of the present invention includes eight switching means, two electric storage means, and a control means, wherein the control means controls the switching means and switches a conduction state and a non-conduction state, by which the power supplied from a direct-current power supply is switched and supplied to an inductive load.

Abstract: A lithium ion secondary battery system allowing a high power efficiency and large effective capacity is provided. The system includes an external power source for charging a lithium ion secondary battery, and a controller for switching output modes including a continuous discharge mode, in which electric power is continuously supplied from the lithium ion secondary battery to the load, and a pulsed charge and discharge mode, in which pulsed electric power is supplied from the lithium ion secondary battery to the load, and pulsed electric power is supplied from the external power source to charge the lithium ion secondary battery during a low-level pulsed discharge period(s), which are periods during which electric power is not supplied to the load, wherein the controller switches the output modes to the pulsed charge and discharge mode when the lithium ion secondary battery has a voltage lower than a predetermined upper switching voltage.