| 摘要 |
PURPOSE:To obtain a frequency dividing circuit which has a stable operation to the temperature change and can be easily converted into an IC with use of an MOS semiconductor, by securing such a constitution of circuit that the output of a voltage comparator is inverted every time a switch has several operations. CONSTITUTION:A switch 17 is controlled with an input pulse signal ei of an input terminal 11 and switches the connection to fixed contacts 17a and 17b. A voltage comparator 18 compares the voltage between two inputs and then delivers the result of this comparison. The output voltage e0 uses the +V or -V value. A resistor 19 is connected between the output side and the non-reverse input side of the comparator 18, and the non-reverse input side is grounded through a resistor 21. The resistance values of resistors 19 and 21 are set at R1 and R2 respectively. In this case, the non-reverse input voltage of the comparator 18 is set at R2V/(R1+R2) and -R2V/(R1+R2). The common contact of the switch 17 is grounded through a capacity element 22 of a capacity C1. While the reverse input side of the comparator 18 is grounded through a capacity element 23 of a capacity C2. |
