发明公开
EP2973971A2 SYSTEMS AND METHODS FOR 100 PERCENT DUTY CYCLE IN SWITCHING REGULATORS
有权
SYSTEME UND VERFAHRENFÜR100-PROZENT-ARBEITSZYKLUS BEI SCHALTREGLERN
- 专利标题： SYSTEMS AND METHODS FOR 100 PERCENT DUTY CYCLE IN SWITCHING REGULATORS
- 专利标题（中）： SYSTEME UND VERFAHRENFÜR100-PROZENT-ARBEITSZYKLUS BEI SCHALTREGLERN
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申请号： EP14718836.1申请日： 2014-03-13
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公开(公告)号： EP2973971A2公开(公告)日： 2016-01-20
- 发明人: GONCALVES, Ricardo T. , STOCKSTAD, Troy , RUTKOWSKI, Joseph D.
- 申请人： QUALCOMM INCORPORATED
- 申请人地址： International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- 专利权人： QUALCOMM INCORPORATED
- 当前专利权人： QUALCOMM INCORPORATED
- 当前专利权人地址： International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- 代理机构： Schmidbauer, Andreas Konrad
- 优先权： US201313828044 20130314
- 国际公布： WO2014159935 20141002
- 主分类号： H02M3/155
- IPC分类号： H02M3/155 ; H02M1/08
摘要：
The present disclosure includes systems and methods for 100% duty cycle in switching regulators. A switching regulator circuit includes a ramp generator to produce a ramp signal having a period and a comparator to receive the ramp signal and an error signal, and in accordance therewith, produce a modulation signal. In a first mode of operation, the ramp signal increases to intersect the error signal, and in accordance therewith, changes a state of a switching transistor during each period of the ramp signal. In a second mode of operation, the error signal increase above a maximum value of the ramp signal, and in accordance therewith, the switching transistor is turned on for one or more full periods of the ramp signal.
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