Duty cycle correction circuit for use in a semiconductor device
US7199632B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2005 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Jul 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/1565
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A duty cycle correction circuit for use in a semiconductor device, which synchronizes with an external clock and corrects a duty cycle, is provided. The duty cycle correction circuit includes a modulator of an inverter structure having at least one or more transistors. The modulator receives a control signal through a source terminal and a bulk of any one of the transistors and corrects a duty cycle in response to an external clock signal. The duty cycle correction circuit also includes a driver that converts an output signal of the modulator into a full swing level and outputs the converted output signal of the modulator, and a feedback loop that generates the control signal in response to an output signal of the driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.