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进行脉冲电路实验时常希望有一具脉冲信号发生器,要求其有较宽的频带,脉冲宽度有较宽的变化范围,脉冲幅度连续可调,有较陡的前后沿,有较低的输出阻抗.这里介绍一个简单而能符合要求的宽频带脉冲信号发生器,其技术指标如下:1.重复频率连续可调100赫～500千赫;2.脉冲宽度连续可调0.2～3500微秒;3.脉冲幅度连续可调10～60伏;4.高阻输出时,外负载电阻不得小于1千欧;5.低阻输出时,外负载电阻不得小于75欧;6.外负载电容不得大于50微微法;7.同步脉冲导前主脉冲的时间≤0.5微
Pulse circuit experiments often want to have a pulse signal generator, requiring a wide band, the pulse width has a wide range of changes, the pulse amplitude continuously adjustable, with a steep front and rear, lower output impedance. Here is a simple and can meet the requirements of a broadband pulse signal generator, the technical indicators are as follows: 1. The repetition rate is continuously adjustable 100 Hz ~ 500 kHz; 2. The pulse width adjustable 0.2 to 3500 microseconds; Pulse width adjustable 10 ~ 60 volts; 4 high-impedance output, the external load resistance of not less than 1 kilohms; 5 low-impedance output, the external load resistance of not less than 75 ohms; 6 external load capacitance of not more than 50 pico Method; 7. sync pulse leading main pulse time ≤ 0.5 micro