Semiconductor integrated circuit
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorHironori Nagasawa
Life of this patent
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Abstract
According to one embodiment, there is provided a semiconductor integrated circuit including an oscillation circuit, a charge pump circuit, a smoothing circuit, and a negative feedback circuit. The charge pump circuit is arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal. The smoothing circuit is arranged between the charge pump circuit and the power supply output terminal. The negative feedback circuit is arranged on a path returning from the smoothing circuit to the oscillation circuit. The smoothing circuit includes a first zero point generation circuit.
Claims6
A semiconductor integrated circuit comprising:
- an oscillation circuit;
- a charge pump circuit arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal;
- a smoothing circuit arranged between the charge pump circuit and the power supply output terminal;
- and
- a negative feedback circuit arranged on a path returning from the smoothing circuit to the oscillation circuit,
- wherein,
- the smoothing circuit includes a first zero point generation circuit, and
- the first zero point generation circuit includes:
- a first resistive element arranged between the charge pump circuit and the power supply output terminal;
- and
- a first capacitive element arranged in parallel to the first resistive element between the charge pump circuit and the power supply output terminal.
A semiconductor integrated circuit comprising:
- an oscillation circuit;
- a charge pump circuit arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal;
- a smoothing circuit arranged between the charge pump circuit and the power supply output terminal;
- and
- a negative feedback circuit arranged on a path returning from the smoothing circuit to the oscillation circuit,
- wherein,
- the smoothing circuit includes a first zero point generation circuit, and
- the first zero point generation circuit includes:
- a first resistive element;
- a second resistive element arranged between the first resistive element and the power supply output terminal;
- and
- a first capacitive element arranged in parallel to the first resistive element and the second resistive element between the charge pump circuit and the power supply output terminal.
A semiconductor integrated circuit comprising:
- an oscillation circuit;
- a charge pump circuit arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal;
- a smoothing circuit arranged between the charge pump circuit and the power supply output terminal;
- and
- a negative feedback circuit arranged on a path returning from the smoothing circuit to the oscillation circuit,
- wherein,
- the smoothing circuit includes a first zero point generation circuit, and
- the smoothing circuit further includes a second zero point generation circuit arranged between the first zero point generation circuit and the power supply output terminal.
Dependencies are inferred from the claim text.