# US 2014/0191590 A1 · Electrical apparatus

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- Number: US 2014/0191590 A1
- Document ID: US20140191590A1
- Status: Published application
- Kind: A1
- Application number: 14/236,327
- Filed: 2012-08-02
- Published: 2014-07-10
- Earliest claimed: 2011-08-02
- Assignees: Sony Computer Entertainment Inc.
- Inventors: Daiki Yanagidaira; Tsuyoshi Ohashi; Tsukasa Takahashi
- Web page: https://patentgrep.com/patent/US20140191590A1

## CPC

- H02J 7/667: {disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running}
- H02J 7/855: {with circuits adapted for supplying loads from the battery}
- H02J 7/933: {the cycle being controlled or terminated in response to electric parameters}
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

An electrical apparatus is provided which can reduce, when it is shipped in a state in which a secondary battery is built therein, power consumption before a user starts to use the electrical apparatus first. The electrical apparatus includes a secondary battery, a load which operates by power supplied from the secondary battery, and a switch element disposed between the secondary battery and the load. The switch element remains in an off state until a user starts use of the electrical apparatus.

## Claims

### Claim 1

An electrical apparatus, comprising:
a secondary battery;
a load which consumes power supplied from the secondary battery to implement a function required for the electrical apparatus; and
a switch element disposed between the secondary battery and the load;
the switch element remaining in an off state until use of the electrical apparatus is started by a user.

### Claim 2 (depends on 1)

The electrical apparatus according to claim 1, further comprising:
a power supply switch for starting operation of the load; and
a monitoring circuit configured to monitor a state of the power supply switch;
the monitoring circuit being connected to the secondary battery directly without the intervention of the switch element;
the switch element being switched on when the monitoring circuit detects an operation for switching on the power supply switch.

### Claim 3 (depends on 1)

The electrical apparatus according to claim 1, further comprising:
a connection terminal configured to accept power supply from an external power supply source;
the switch element being switched on when power supply from the external power supply source to the connection terminal is started.

### Claim 4 (depends on 1)

The electrical apparatus according to claim 1, further comprising:
a time measurement circuit configured to measure a date and time at present;
the switch element being disposed between the secondary battery and the time measurement circuit.

### Claim 5 (depends on 1)

The electrical apparatus according to claim 1, further comprising:
a charging controlling circuit configured to control charging of the secondary battery;
the switch element being disposed in the charging controlling circuit.

### Claim 6

An electrical apparatus, comprising:
a secondary battery;
a load which operates by power supplied from the secondary battery; and
a time measurement circuit configured to carry out measurement of a date and time at present by power supplied from the secondary battery;
the electrical apparatus operating in one of a plurality of operation modes including a normal operation mode in which the load operates, a power down mode in which the operation of the load stops and measurement of a date and time at present by the time measurement circuit is carried out, and a shipment mode in which operation of both of the load and the time measurement circuit stops.

### Claim 7 (depends on 6)

The electrical apparatus according to claim 6, further comprising:
a power supply switch; and
a monitoring circuit configured to monitor a state of the power supply switch;
the monitoring circuit operating by power supplied from the secondary battery also in the shipment mode;
the electrical apparatus ending the operation in the shipment mode when the monitoring circuit detects an operation for switching on the power supply switch.

### Claim 8 (depends on 6)

The electrical apparatus according to claim 6, further comprising:
a connection terminal configured to accept power supply from an external power supply source;
the operation of the electrical apparatus in the shipment mode being ended when the power supply from the external power supply source to the connection terminal is started.

### Claim 9

A control circuit for use in an electrical apparatus, comprising:
a switch element disposed between a secondary battery built in the electrical apparatus and a load which consumes power supplied from the secondary battery to implement a function required for the electrical apparatus; and
a control element configured to keep the switch element in an off state until use of the electrical apparatus is started by a user and switch on the switch element when use of the electrical apparatus is started by the user.