| 摘要 |
The voltage level detector/holding circuit exhibits a) a comparator having a first and a second input connection and an output connection, the first input connection responding directly to a continuously variable input voltage, b) an analog multiplexer, by means of which the input voltage is applied to the second input connection of the comparator, the analog multiplexer exhibiting a control connection which, in dependence on the voltage at the output connection of the comparator, creates a conducting path through the analog multiplexer when a predetermined ratio exists between the voltages at the first input connection and at the second input connection of the comparator, and c) a capacitor, one electrode of which is connected between the analog multiplexer and the second input connection of the comparator, and the other electrode of which is connected to earth.
|
