Non-overlap circuit
AssigneeTaiwan Semiconductor Manufacturing Company, Ltd.
InventorJaw-Juinn Horng
Life of this patent
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Abstract
A non-overlap circuit includes a first delay circuit configured to receive a first input signal and output a first control signal to a driver circuit, sensing circuitry configured to sense a current generated in response to the first control signal coupled through bulk semiconductor of a semiconductor substrate and produce a feedback signal response, and a second delay circuit. The second delay circuit configured to receive the feedback signal from the sensing circuitry and a second input signal and output a second control signal to the driver circuit based on the sensed feedback signal and the second input signal.
Claims18
A non-overlap circuit, comprising:
- a first delay circuit configured to receive a first input signal and output a first control signal to a driver circuit;
- sensing circuitry configured to sense a current from the driver circuit in response to the first control signal through bulk semiconductor of a semiconductor substrate and produce a feedback signal in response to current;
- and
- a second delay circuit configured to receive the feedback signal from the sensing circuitry and a second input signal, and output a second control signal to the driver circuit based on the sensed feedback signal and the second input signal,
- wherein the first delay circuit is configured to receive a second feedback signal from an output of the second delay circuit.
A method, comprising:
- receiving an input signal at a first delay circuit;
- outputting a first control signal from the first delay circuit to a driver circuit in response to the input signal;
- producing a feedback signal in response to sensing a current generated in response to the first control signal through bulk semiconductor of a semiconductor substrate;
- receiving a second input signal and the feedback signal at a second delay circuit;
- and
- outputting a second control signal from the second delay circuit to the driver circuit in response to the second input signal and the feedback signal,
- wherein the first delay circuit receives a second feedback signal from an output of the second delay circuit and outputs the first control signal to the driver circuit in response to the input signal and the second feedback circuit.
A non-overlap circuit, comprising:
- first and second delay circuits for respectively outputting first and second control signals to a driver circuit, the first delay circuit outputting the first control signal in response to receiving a first feedback signal from an output of the second delay circuit and a first input signal, the second delay circuit outputting the second control signal in response to receiving a second input signal and a second feedback signal;
- a first doped region of a first type disposed within a semiconductor substrate in which the first and second delay circuits are disposed, the first doped region of the first type spaced apart from a second doped region of a second type from which the first control signal is output, the first doped region of the first type configured to sense a current generated in response to the first control signal through the semiconductor substrate;
- and
- circuitry coupled to the first doped region of the first type configured to output the first feedback signal.
Dependencies are inferred from the claim text.