Electronic circuit including charge pump for converting voltage
AssigneeSamsung Electronics Co., Ltd.
InventorsBilal Ahmad Janjua, Sungwhan Seo, Vivek Venkata Kalluru
Life of this patent
Estimating the term…
Abstract
An electronic circuit includes a first switch circuit, a second switch circuit, a pumping circuit, and a main charge pump. The first switch circuit transfers a first driving voltage to a first node based on a first clock. The second switch circuit transfers a second driving voltage to a second node based on the first driving voltage of the first node. The pumping circuit outputs a pumping voltage having a level corresponding to a sum of a level of the second driving voltage and a first operation level of a second clock, based on the second driving voltage of the second node and the first operation level. The main charge pump converts an input voltage based on the pumping voltage.
Claims20
An electronic circuit comprising:
- a first switch circuit configured to transfer a first driving voltage to a first node based on a first clock;
- a second switch circuit configured to transfer a second driving voltage to a second node based on the first driving voltage of the first node;
- a pumping circuit configured to output a pumping voltage having a level corresponding to a sum of a level of the second driving voltage and a first operation level of a second clock, based on the second driving voltage of the second node and the first operation level;
- and
- a main charge pump configured to convert an input voltage based on the pumping voltage.
An electronic circuit comprising:
- a first sub charge pump configured to output a first pumping voltage of a level corresponding to a sum of a level of a driving voltage and a level of a first operation level, based on the driving voltage received in a first time interval and the first operation level of a first clock received in a second time interval after the first time interval;
- a second sub charge pump configured to output a second pumping voltage of a level corresponding to a sum of the level of the driving voltage and the first operation level, based on the driving voltage received in the second time interval and the first operation level of a second clock received in a third time interval after the second time interval;
- and
- a main charge pump configured to convert an input voltage based on the first pumping voltage and the second pumping voltage.
An electronic circuit comprising:
- a first capacitive element configured to maintain a first driving voltage transferred to a first node based on a first operation level of a first clock during a first time interval and to transfer a second clock of the first operation level to the first node in a second time interval after the first time interval;
- a second capacitive element configured to transfer a voltage having a level corresponding to a sum of the first operation level and a level of the first driving voltage based on the first driving voltage maintained at the first node and the second clock transferred to the first node, during the second time interval;
- and
- a main charge pump configured to convert an input voltage based on the voltage transferred from the second capacitive element, wherein
- a size of the second capacitive element is larger than a size of the first capacitive element.
Dependencies are inferred from the claim text.