Hysteretic regulator and control method having swi
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专利名称：Hysteretic regulator and control method having switching frequency independent
from output filter
发明人：Dale James Skelton,Rais Karimovich
Miftakhutdinov
申请号：US09/399302
申请日：19990917
公开号：US06147478A
公开日：
20001114
专利内容由知识产权出版社提供
摘要：A DC to DC power converter (58) and method of controlling the DC to DC power converter (58). The converter (58) has a first switch (S. sub. 1) coupled to a second switch (S.sub.2). The converter (58) is adapted to receive an input voltage V.sub.in, generate an output voltage V.sub. out, and operate at a switching frequency. A hysteretic mode control circuit (52) includes a first circuit generating a ramp signal at input (56) for controlling the converter (58). The first circuit includes a first capacitor (C.sub.1) with the ramp signal generated at an end of the first capacitor (C.sub.1). The hysteretic mode control circuit (52) is coupled to the first (S.sub.1) and second (S.sub.2) switches, where the switching frequency of the first and second switches is dependent upon the ramp signal (56) determined by the value of the components of the first circuit rather than on the voltage from the output filter of the DC to DC power converter. The invention is particularly useful for applications such as DSPs and mixed signal or analog circuits.
申请人：TEXAS INSTRUMENTS INCORPORATED
代理人：Mark E. Courtney,W. James Brady, III,Frederick J. Telecky, Jr.
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