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５９５．脉冲／频率调制器用通过电阻器Ｒ１的控制电压来更改变比较器ＩＣ１的转换点就可改变小型脉冲和频率调制器的脉冲宽度。该集成电路的滞后量由电阻器Ｒ３和Ｒ４决定。该控制电压也会引起当前电路的频率发生变化。当输入电压为０Ｖ时，频率最大：在当前的设计中，频...
595. PULSE / FREQUENCY MODULATOR The pulse width of the miniature pulse and frequency modulator can be changed by changing the switching point of the variable comparator IC1 by using the control voltage of resistor R1. The amount of hysteresis of the integrated circuit is determined by resistors R3 and R4. This control voltage also causes the current circuit frequency to change. When the input voltage is 0V, the maximum frequency: in the current design, frequency ...