WAVEFORM SHAPING CIRCUIT

PURPOSE:To make the signal waveform after wave shape almost the same pulse width as the waveform of an input signal, by providing an error detection circuit controlling a peak of the input signal to the next peak to a constant value. CONSTITUTION:The input signal is inputted to a delay circuit 1 and an amplitude detection circuit 3 via a terminal 11. The amplitude detection circuit 3 detects the peak value from the peak of the inputted signal and inputs the result to the 1st error detection circuit 5. The 1st error detection circuit 5 compares the voltage inputted from the 1st reference voltage output circuit 4 with the voltage inputted from the circuit 3 and outputs a signal controlling the amplification factor of a gain control circuit 2. An output from the circuit 1 is inputted to a clamp circuit 6 via a capacitor 13 and to a comparator 7. A switch 10 is conductive with a trigger input and gives a reference level of the signal outputted from the comparator 7 to the 2nd error detection circuit 8. A reference voltage output circuit is shown in 9.