Power semiconductor circuit
AssigneeNEC Electronics Corporation
InventorIkuo Fukami
Life of this patent
Estimating the term…
Abstract
A power semiconductor circuit drives a load connected an output terminal. An output switch switches the output terminal to either one of an on-state and an off state. An internal state signal terminal produces an internal state of the circuit as a signal. An internal state signal switch switches the internal state signal terminal to either one of an on-state and an off-state. An internal state sensor detects the internal state of the circuit. A logic circuit is given with a control signal from an external control circuit, a detecting signal of the internal state sensor, and the signal from the internal state signal terminal, and switches the output switch and the internal state signal switch to either one of the on-state and the off-state on the basis of the given signals.
Claims20
A power semiconductor circuit for driving a load connected to an output terminal, comprising:
- an output switch which switches the output terminal to either one of an on-state and an off state;
- an internal state signal terminal which produces an internal state of the circuit as a signal;
- an internal state signal switch which switches the internal state signal terminal to either one of an on-state and an off-state;
- an internal state sensor which detects the internal state of the circuit;
- and
- a logic circuit which is given a control signal from an external control circuit, a detecting signal of the internal state sensor, and the signal from the internal state signal terminal and which switches the output switch and the internal state signal switch to either one of the on-state and the off-state on the basis of the given signals.
A power semiconductor circuit for driving a load connected to an output terminal, the circuit comprising:
- an output switch in communication with said output terminal;
- an internal state signal terminal in communication with an internal state switch;
- an internal state sensor which detects the internal state of the circuit;
- and
- a logic circuit in communication with said internal state sensor, a control terminal and said internal state signal terminal, wherein said logic circuit controls a state of said output switch and said internal state switch.
A power semiconductor circuit for driving a load connected to an output terminal, the circuit comprising:
- a plurality of power semiconductor circuits each comprising:
- an output switch in communication with said output terminal;
- an internal state signal terminal in communication with an internal state switch;
- an internal state sensor which detects the internal state of the circuit;
- and
- a logic circuit in communication with said internal state sensor, a control terminal and said internal state signal terminal, wherein said logic circuit controls said output switch and said internal state switch.
Dependencies are inferred from the claim text.