简单的脉冲发生器具有低组件数

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摘要:数的运算放大器和一些外部元件,您可以建立具有可变频率和占空比的脉冲发生器。
Maxim/Dallas > App Notes > AMPLIFIER AND COMPARATOR CIRCUITS AUTOMOTIVE

Keywords: pulse generator, VCO, voltage controlled oscillator, op amp, operational amplifier, frequency, Mar 26, 2003
square wave, opamp, op amps

APPLICATION NOTE 1960
Simple Pulse Generator Has Low Parts Count

With a few op amps and some external components, you can build a pulse generator with variable frequency
and duty cycle.


The natural choice for generating a pulse of variable frequency and duty cycle is a good bench-top pulse
generator. If you don't have a generator or must build one into your system, however, you can do it with a few
op amps and some external components (Figure 1).




Figure 1. This simple and versatile pulse generator includes only 15 components.


U1 and Q1 form a voltage-c

关键词: Maxim   pulse generator   VCO   voltage controlled oscillator   op amp   operational amplifier   frequency   square wave   opamp   op amps  

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