摘要
由于555多谐振荡器可获得较高精度的振荡频率和较强的功率输出能力,因此该信号发生器介绍了改进的555多谐振荡器产生方波,通过调节可调电阻的阻值来调节矩形波的频率,再由积分器将矩形波转换三角波,最后三角波经过差分放大器转换为正弦波。电路设计在Multisim软件环境下仿真,并对有关问题进行分析讨论。
As a result of 555 muhivibrator can obtain high precision oscillation frequency and strong power output capabili- ty, so the signal generator is introduced in square wave that is produced with the improved 555 harmonic oscillator. Fre- quency of square wave can be adjusted by a variable resistor. The paper uses an integrator to realize the rectangular wave and triangle wave, and presents how triangle wave through the differential amplifier is converted to the sine wave. Based on above, the circuit is simulated in Muhisim software environment, and the relevant problems are furtherly discussed.
出处
《智能计算机与应用》
2014年第6期95-97,共3页
Intelligent Computer and Applications
