发明名称 |
INTERRUPT BASED MULTIPLEXED CURRENT LIMIT CIRCUIT |
摘要 |
A switching voltage regulator includes, in part, N output stages, a loop ADC, a multiplexer, a current ADC, and an interrupt block. The loop analog-to-digital converter receives the N output voltages each of which is associated with one of N channels. The loop ADC is adapted to vary a duty cycle of N signals each applied to one of the N output stages that generate the N output voltages. The interrupt block is adapted to enable the multiplexer to couple an output stage to the current ADC if a difference between voltages sensed at an output stage during at least two sampling times exceeds a predefined threshold value. The interrupt block may also be adapted to enable the multiplexer to couple an output stage to the current ADC block if a difference between a voltage sensed at the output stage and a reference voltage exceeds a predefined threshold value.
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申请公布号 |
WO2009135039(A3) |
申请公布日期 |
2010.01.21 |
申请号 |
WO2009US42369 |
申请日期 |
2009.04.30 |
申请人 |
EXAR CORPORATION;GODER, DIMITRY;HU, ZONGQI;NGUYEN, KENDRA |
发明人 |
GODER, DIMITRY;HU, ZONGQI;NGUYEN, KENDRA |
分类号 |
H03M1/00 |
主分类号 |
H03M1/00 |
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地址 |
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