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The 555 linear voltage/frequency converter circuit

2017-03-06 17:39  
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The 555 linear voltage/frequency converter circuit
See as figure 5-34, the linear voltage/frequency converter consists of a differentiation/integration circuit and a single stable trigger delay circuit, which is used in voltage/frequency conversion. The IC is a MOSFET computing amplifier CA3140(OR 4573), which forms the integration circuit of the differentiation input, its output terminal control is added to the trigger of IC2, the output of the single stable trigger circuit is added to the non-inverting terminal of the integrator, by changing the integral phase, the output of IC1, a triangular wave, increases or decreases in linearity.