Current limiting circuit, dc power supply connector, and dc power source device
AssigneeSony Corporation
InventorTadashi Morita
Life of this patent
Estimating the term…
Abstract
Provided is a current limiting circuit (30) configured to: before release of a touch between a second contact (20b) provided at a position where a terminal (11a) on a power receiving side in which a current flows at supply of DC power in an electrode that supplies the DC power touches before touching a first contact (20a) provided for the electrode at supply of the DC power and the terminal (11a), decrease the current flowing into the terminal (11a) through the second contact (20b); and avoid flowing a current in a case where the terminal (11a) is touching the first contact (20a), and decrease the current flowing into the terminal (11a) through the second contact (20b) only in a case where the terminal (11a) is touching the second contact (20b).
Claims39
A current limiting circuit configured to:
- before release of a touch between a second contact provided at a position where a terminal on a power receiving side in which a current flows at supply of DC power in an electrode that supplies the DC power touches before touching a first contact provided for the electrode at supply of the DC power and the terminal, decrease the current flowing into the terminal through the second contact;
- and
- avoid flowing a current in a case where the terminal is touching the first contact, and decrease the current flowing into the terminal through the second contact only in a case where the terminal is touching the second contact.
A DC power supply connector at least comprising:
- a positive-electrode-side electrode and a negative-electrode-side electrode configured to supply DC power,
- wherein at least any of the positive-electrode-side electrode and the negative-electrode-side electrode includes
- a first contact,
- a second contact provided at a position where a terminal on a power receiving side in which a DC current flows at supply of the DC power touches before touching the first contact, and
- a current limiting circuit configured to decrease the current flowing into the terminal through the second contact before release of a touch between the terminal and the second contact, and
- the current limiting circuit does not flow a current in a case where the terminal is touching the first contact, and the current limiting circuit decreases the current flowing into the terminal through the second contact only in a case where the terminal is touching the second contact.
A DC power source device at least comprising:
- a DC power source configured to supply DC power;
- and
- a positive-electrode-side electrode and a negative-electrode-side electrode configured to supply the DC power from the DC power source,
- wherein at least any of the positive-electrode-side electrode and the negative-electrode-side electrode includes
- a first contact,
- a second contact provided at a position where a terminal on a power receiving side in which a DC current flows at supply of the DC power touches before touching the first contact, and
- a current limiting circuit configured to decrease the current flowing into the terminal through the second contact before release of a touch between the terminal and the second contact, and
- the current limiting circuit does not flow a current in a case where the terminal is touching the first contact, and the current limiting circuit decreases the current flowing into the terminal through the second contact only in a case where the terminal is touching the second contact.
A current limiting circuit comprising:
- a switching element configured to be brought into an on state at a time point when a terminal that receives supply of DC power is no longer connected to a drain-side contact to, in a state where the terminal is connected only to a source-side contact, decrease a current flowing into the terminal through the source-side contact;
- a capacitive element configured to start being charged at a time point when the terminal is no longer connected to the drain-side contact to raise a gate voltage of the switching element in the state where the terminal is connected only to the source-side contact;
- and
- a resistive element configured to set a time for applying a voltage to a gate terminal of the switching element in conjunction with the capacitive element.
Dependencies are inferred from the claim text.