| 摘要 |
FIELD: automatics, electric measurement technology, converter of parameters of electric values. SUBSTANCE: given converter incorporates source of input voltage, comparator, frequency divider, first and second keys, source of reference voltage, resistor, capacitor. Common point of resistor and capacitor is connected to inverting input of operational amplifier with its noninverting input being grounded. Another lead-out of capacitor is connected to output of operational amplifier which is coupled to retrieval and storage unit. Output of the latter is output of converter. Output of frequency divider is connected to control input of first key, to first input of logic 2NOT-OR storage location, multivibrator is coupled to control input of retrieval and storage unit which is also connected to second input of logic 2NOT-OR storage location. Output of the latter is connected to control input of second key which is connected in parallel with capacitor. EFFECT: possibility of conversion of time interval to constant voltage, to period of alternating voltage in particular. 2 dwg |
