Electrical apparatus, electrical apparatus system, and power supply apparatus

An electrical apparatus which is connected to a power supply apparatus at least comprising an output stopping section for detecting that a current greater than or equal to a first predetermined value passes for a first time period, and for stopping an output of the power supply apparatus, the electrical apparatus comprising:

• a circuit section operable to pass a current to the power supply apparatus;
• a first current drawing section for drawing, before the current starts to pass between the power supply apparatus and the circuit section, the current greater than or equal to the first predetermined value from the power supply apparatus;
• and
• a first detection section for detecting that the output of the power supply apparatus is stopped before the first time period has passed from a time at which the first current drawing section starts to draw the current greater than or equal to the first predetermined value from the power supply apparatus, wherein
• after the first detection section detects that the output of the power supply apparatus is stopped before the first time period has passed, the electrical apparatus starts to pass the current between the power supply apparatus and the circuit section so as to operate the circuit section.

An electrical apparatus system controlled by a power supply apparatus and an electrical apparatus connected to the power supply apparatus, wherein

• the power supply apparatus at least comprises:
• an output stopping section for detecting that a current greater than or equal to a first predetermined value passes for a first time period, and for stopping an output of the power supply apparatus,
• the electrical apparatus comprises:
• a circuit section operable to pass a current to the power supply apparatus;
• a first current drawing section for drawing, before the current starts to pass between the power supply apparatus and the circuit section, the current greater than or equal to the first predetermined value from the power supply apparatus;
• and
• a first detection section for detecting that the output of the power supply apparatus is stopped when the first time period has passed from a time at which the first current drawing section starts to draw the current greater than or equal to the first predetermined value from the power supply apparatus, wherein
• after the first detection section detects that the output of the power supply apparatus is stopped when the first time period has passed, the electrical apparatus starts to pass the current between the power supply apparatus and the circuit section so as to operate the circuit section,
• the electrical apparatus further comprises a control signal transmitting section for transmitting a predetermined control signal to the power supply apparatus, when the first detection section detects that the output of the power supply apparatus is stopped when the first time period has passed, wherein
• the output stopping section is operable to switch an operation mode between a first mode, in which the output stopping section detects that the current greater than or equal to the first predetermined value passes for the first time period and stops the output of the power supply apparatus, and a second mode, in which the output stopping section detects that a current greater than or equal to a second predetermined value passes for a second time period and stops the output of the power supply apparatus, and
• the power supply apparatus causes the output stopping section to be in the first mode before receiving the control signal, and causes the output stopping section to be in the second mode after receiving the control signal.

An electrical apparatus system controlled by a power supply apparatus and an electrical apparatus connected to the power supply apparatus, wherein

• the power supply apparatus at least comprises:
• an output stopping section for detecting that a current greater than or equal to a first predetermined value passes for a first time period, and for stopping an output of the power supply apparatus,
• the electrical apparatus comprises:
• a circuit section operable to pass a current to the power supply apparatus;
• a first current drawing section for drawing, before the current starts to pass between the power supply apparatus and the circuit section, the current greater than or equal to the first predetermined value from the power supply apparatus;
• and
• a first detection section for detecting that the output of the power supply apparatus is stopped before at least the first time period has passed from a time at which the first current drawing section starts to draw the current greater than or equal to the first predetermined value from the power supply apparatus, wherein
• after the first detection section detects that the output of the power supply apparatus is stopped before the first time period has passed, the electrical apparatus starts to pass the current between the power supply apparatus and the circuit section so as to operate the circuit section,
• the electrical apparatus further comprises a control signal transmitting section for transmitting a predetermined control signal to the power supply apparatus, when the first detection section detects that the output of the power supply apparatus is stopped before the first time period has passed, wherein
• the output stopping section is operable to switch an operation mode between a first mode, in which the output stopping section detects that the current greater than or equal to the first predetermined value passes for the first time period and stops the output of the power supply apparatus, and a second mode, in which the output stopping section detects that a current greater than or equal to a second predetermined value passes for a second time period and stops the output of the power supply apparatus, and
• the power supply apparatus causes the output stopping section to be in the first mode before receiving the control signal, and causes the output stopping section to be in the second mode after receiving the control signal.

A power supply apparatus, connected to an electrical apparatus, which supplies an electric power to the electrical apparatus, the power supply apparatus comprising:

• an output stopping section operable to switch an operation mode between a first mode, in which the output stopping section detects that a current greater than or equal to a first predetermined value passes for a first time period and stops an output of the power supply apparatus, and a second mode, in which the output stopping section detects that a current greater than or equal to a second predetermined value, which is greater than the first predetermined value, passes for a second time period and stops the output of the power supply apparatus;
• a connection state detection section for detecting a state in which the power supply apparatus is connected to the electrical apparatus;
• and
• a control section for causing the output stopping section to be in the first mode, when the connection state detection section detects that the power supply apparatus is not connected to the electrical apparatus.

An electrical apparatus system including an electrical apparatus and a power supply apparatus which supplies an electric power to the electrical apparatus, wherein

• the power supply apparatus comprises:
• a power supply section;
• an output terminal for outputting an electric power supplied from the power supply section to an exterior of the power supply apparatus;
• a protection circuit for stopping the electric power outputted from the power supply section to the output terminal;
• and
• a first terminal for applying an electrical input so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal,
• the electrical apparatus comprises:
• an input terminal connected to the output terminal;
• a second terminal connected to the first terminal;
• a circuit section to be operated by using an electric power inputted to the input terminal;
• and
• a supply control section for controlling the electric power inputted to the input terminal to be supplied to the circuit section, and
• the supply control section includes:
• a stop control section for outputting an electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal, before the electric power inputted to the input terminal starts to be supplied to the circuit section;
• a detection section for detecting that the electric power inputted to the input terminal is stopped, after the stop control section outputs the electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal;
• and
• a supply start section for starting to supply the electric power inputted to the input terminal to the circuit section, if the detection section detects that the electric power inputted to the input terminal is stopped.

An electrical apparatus of an electrical apparatus system including the electrical apparatus and a power supply apparatus which supplies an electric power to the electrical apparatus, wherein

• the power supply apparatus comprises:
• a power supply section;
• an output terminal for outputting an electric power supplied from the power supply section to an exterior of the power supply apparatus;
• a protection circuit for stopping the electric power outputted from the power supply section to the output terminal;
• and
• a first terminal for applying an electrical input so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal,
• the electrical apparatus comprises:
• an input terminal connected to the output terminal;
• a second terminal connected to the first terminal;
• a circuit section to be operated by using an electric power inputted to the input terminal;
• and
• a supply control section for controlling the electric power inputted to the input terminal to be supplied to the circuit section, and
• the supply control section includes:
• a stop control section for outputting an electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal, before the electric power inputted to the input terminal starts to be supplied to the circuit section;
• a detection section for detecting that the electric power inputted to the input terminal is stopped, after the stop control section outputs the electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal;
• and
• a supply start section for starting to supply the electric power inputted to the input terminal to the circuit section, if the detection section detects that the electric power inputted to the input terminal is stopped.

A power supply apparatus of an electrical apparatus system including an electrical apparatus and the power supply apparatus which supplies an electric power to the electrical apparatus, wherein

• the power supply apparatus comprises:
• a power supply section;
• an output terminal for outputting an electric power supplied from the power supply section to an exterior of the power supply apparatus;
• a protection circuit for stopping the electric power outputted from the power supply section to the output terminal;
• and
• a first terminal for applying an electrical input so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal,
• the electrical apparatus comprises:
• an input terminal connected to the output terminal;
• a second terminal connected to the first terminal;
• a circuit section to be operated by using an electric power inputted to the input terminal;
• and
• a supply control section for controlling the electric power inputted to the input terminal to be supplied to the circuit section, and
• the supply control section includes:
• a stop control section for outputting an electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal, before the electric power inputted to the input terminal starts to be supplied to the circuit section;
• a detection section for detecting that the electric power inputted to the input terminal is stopped, after the stop control section outputs the electrical input to the second terminal so as to instruct the protection circuit to stop the electric power outputted from the power supply section to the output terminal;
• and
• a supply start section for starting to supply the electric power inputted to the input terminal to the circuit section, if the detection section detects that the electric power inputted to the input terminal is stopped.