Control circuit
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsShinsuke Niino, Masayuki Ozaki
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a control circuit includes a capacitive element connected between an output terminal of an output-switching transistor circuit and a control electrode, and a charge circuit charges the capacitive element when the ON/OFF switching signal is switched from an OFF command to an ON command, delay improvement circuit shortens a delay time from OFF to ON of the transistor circuit by setting the ON/OFF control voltage of the transistor circuit to the first switching threshold in conjunction with the operation of the charge circuit.
Claims6
A control circuit comprising:
- a transistor circuit which switches a voltage at an output terminal between a first voltage and a second voltage different from the first voltage according to an ON/OFF control voltage supplied to a control electrode;
- a capacitive element connected between the output terminal of the transistor circuit and the control electrode;
- a charge circuit which charges the capacitive element when an ON/OFF switching signal that generates the ON/OFF control voltage is switched from an OFF command to an ON command;
- and
- a delay improvement circuit which sets the ON/OFF control voltage to a switching threshold in conjunction with operation of the charge circuit, thereby shortening a delay time of the transistor circuit which occurs when switched from an OFF state to an ON state.
A control circuit comprising:
- a transistor circuit which switches a voltage at an output terminal between a first voltage and a second voltage different from the first voltage according to an ON/OFF control voltage supplied to a control electrode;
- a capacitive element connected between the output terminal of the transistor circuit and the control electrode;
- a discharge circuit which discharges the capacitive element when an ON/OFF switching signal that generates the ON/OFF control voltage is switched from an ON command to an OFF command;
- and
- a delay improvement circuit which sets the ON/OFF control voltage to a switching threshold in conjunction with operation of the discharge circuit, thereby shortening a delay time of the transistor circuit which occurs when switched from an ON state to an OFF state.
A control circuit comprising:
- a transistor circuit which switches a voltage at an output terminal between a first voltage and a second voltage different from the first voltage according to an ON/OFF control voltage supplied to a control electrode;
- a capacitive element connected between the output terminal of the transistor circuit and the control electrode;
- a charge circuit which charges the capacitive element when an ON/OFF switching signal that generates the ON/OFF control voltage is switched from an OFF command to an ON command;
- a discharge circuit which discharges the capacitive element when an ON/OFF switching signal that generates the ON/OFF control voltage is switched from an ON command to an OFF command;
- a first delay improvement circuit which sets the ON/OFF control voltage to a switching threshold in conjunction with operation of the charge circuit, thereby shortening a delay time of the transistor circuit which occurs when switched from an OFF state to an ON state;
- and
- a second delay improvement circuit which sets the ON/OFF control voltage to a switching threshold in conjunction with operation of the discharge circuit, thereby shortening a delay time of the transistor circuit which occurs when switched from the ON state to the OFF state.
Dependencies are inferred from the claim text.