发明名称 |
ACCELERATED RESPONSE TO LOAD TRANSIENTS IN PFM DC-TO-DC CONVERTERS |
摘要 |
A pulse generator circuit in a DC-to-DC converter may be configured to generate pulses that have a frequency that increases in response to increases in the load on the DC-to-DC converter. The pulse generator circuit may be configured to cause each pulse to have a constant width. When the pulse reaches the end of the constant width and the magnitude of the current through an inductance in the converter is less than a threshold value, however, the pulse generator may be configured to extend the pulse until the magnitude of the current through the inductance reaches the threshold value. The pulse generator circuit may be configured to prematurely terminate each pulse if and at such time as the load voltage exceeds a target value by approximately half of the peak-to-peak voltage of the ripple component plus the noise component margin.
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申请公布号 |
US2010123444(A1) |
申请公布日期 |
2010.05.20 |
申请号 |
US20080275129 |
申请日期 |
2008.11.20 |
申请人 |
LINEAR TECHNOLOGY CORPORATION |
发明人 |
GROOM TERRY J.;LEONARD JASON |
分类号 |
G05F1/575 |
主分类号 |
G05F1/575 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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