Sony Corporation

Murata Manufacturing Co., Ltd.

Morihiko Sato

Naoyuki Sugeno

Koji Umetsu

Hidekazu Kikuchi

Yoshihiro Komatsu

Eiji Kumagai

A monitoring apparatus includes a first converter that converts first analog data indicating a voltage value of each of batteries into first digital data; and a second converter that converts second analog data indicating an electric current value flowing through the plurality of batteries into second digital data. The first analog data and the second analog data are data having the same timing.

Monitoring apparatus, monitoring control apparatus, power supply apparatus, monitoring method, monitoring control method, power storage system, electronic apparatus, motor-driven vehicle, and electric power system

A power reserve apparatus is disclosed. In one embodiment, the power reserve apparatus comprises a first module including a first set of battery cells and a first inter-cell balance adjustment unit configured to use passive balancing to reduce voltage variance among the first set of battery cells. The power reserve apparatus also comprises a second module including a second set of battery cells and a second inter-cell balance adjustment unit configured to use passive balancing to reduce voltage variance among the second set of battery cells. The power reserve apparatus further comprises an inter-module balance adjustment unit configured to use active balancing to reduce voltage variance among the first and second modules.

Power reserve apparatus, power system, and electric vehicle

A power storage apparatus, electric device, electric vehicle, and power system are disclosed. In an example embodiment, a power storage apparatus includes a battery block comprising a plurality of battery cells and an isolating unit that enables wireless information transfer regarding battery information of the battery block.

Power storage apparatus and electric vehicle

An electronic storage module includes a plurality of batteries, a primary monitoring circuit configured to detect an operating state of the plurality of batteries, a microcontroller unit connected to the primary monitoring circuit via a primary communication path, and a secondary monitoring circuit connected to the microcontroller unit via a secondary communication path. The secondary monitoring circuit is configured to detect the operating state of the plurality of batteries when a determination is made of an abnormality in the primary communication path, or an abnormality in the operating state of the primary monitoring circuit.

Power storage device, power system and electric vehicle

A battery system includes a battery pack configured to include at least a plurality of battery cells that are connected in series, a monitor that monitors a state of the plurality of battery cells, and a controller to which an output of the monitor is supplied, a battery pack module in which the battery pack in a first order to the battery pack in an Nth order are connected in series, and an integrated controller that is connected with the battery pack in the first order of the battery pack module. Isolators are respectively disposed among the battery pack in the first order to the battery pack in the Nth order, and a signal is transmitted from the battery pack in an order of n&#x2212;1 (N&#x2267;n&#x2267;2) to the battery pack in an order of n via one of the isolators.

Multi-battery pack battery system with direct communication between controller and the battery packs

Reproduction signals which are simultaneously obtained from an Ach headand a Bch headare time division multiplexed by a signal layout converting circuitand arranged. An HPF unitand an LPF unitof a waveform equalizing circuitare optimally switched on the basis of sync adjustment information such as switching information of the heads. An edge detection pulse width of an edge detecting circuit and an output frequency of a VCOare controlled on the basis of the sync adjustment information. The output frequency of the VCOis used as a clock signal of the reproduction signals by a signal processing unitat the post stage.

Clock system for reproducing apparatus and method

A magnetic recording apparatus has a rotating drum which rotates magnetic heads at a constant speed. The magnetic heads scan a magnetic tape. On a magnetic tape, an area written by each scan always includes a lateral portion of an area written by the previous scan. In this portion, old data is overwritten by new data, and writing continues. An area excluding the overwritten portion is a recording track. The running speed of the magnetic tape is changed by a system controller, and hence the recording track width can be changed.

Growing community of inventors

Kanagawa, Japan

Morihiko Sato