Charge pump circuit and phase-locked loop circuit
AssigneeKioxia Corporation
InventorGo Urakawa
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a charge pump circuit includes: a current source; a first current mirror including an input terminal connected to the current source; a second current mirror including an input terminal connected to an output terminal of the first current mirror; a third current mirror including an input terminal connected to a first output terminal of the second current mirror; a first switch including a first end connected to a second output terminal of the second current mirror via a first node, and including a second end; and an output terminal connected to an output terminal of the third current mirror and the second end of the first switch via a second node.
Claims20
A charge pump circuit comprising:
- a current source;
- a first current mirror including an input terminal connected to the current source;
- a second current mirror including an input terminal connected to an output terminal of the first current mirror;
- a third current mirror including an input terminal connected to a first output terminal of the second current mirror;
- a fourth current mirror including an input terminal connected to a second output terminal of the second current mirror, and including an output terminal connected to a first node;
- a first switch including a first end connected to a third output terminal of the second current mirror via a second node, and including a second end connected to the first node;
- a second switch including a first end connected to an output terminal of the third current mirror via a third node, and including a second end connected to the first node;
- and
- an output terminal connected to the first node.
Dependencies are inferred from the claim text.