| 摘要 |
<p>A switched capacitance feedback control circuit includes a switched capacitance signal input circuit connected in cascade to a signal processor. The input circuit includes a timer providing timing signals, a single capacitance and a switch controlled by the timer. The input circuit is able to sample and algebraically add an analog input signal and an analog feedback signal provided by the processor. As the input and feedback signals are processed by making use of the same capacitance there is no problem of capacitance matching and so more accurate performance than with the prior art results.</p> |
