Efficient current monitoring for DC-DC converters
A current monitoring circuit for DC-DC switching converters includes a track and latch comparator circuit having a preamplifier that is controlled independently of a latch circuit. The comparator is small and operates very fast and with improved sensitivity. For example, the preamplifier circuit is...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
13.05.2008
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| Online Access | Get full text |
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| Summary: | A current monitoring circuit for DC-DC switching converters includes a track and latch comparator circuit having a preamplifier that is controlled independently of a latch circuit. The comparator is small and operates very fast and with improved sensitivity. For example, the preamplifier circuit is disabled when the latch stage is making its decision to avoid noise and input disturbances from affecting the latch stage. This selective disabling feature speeds up the signal processing of the comparator and allows it to work in parallel with other circuits. The latch stage can make its decision later, regardless of any further activity at the inputs of the comparator. |
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