| 摘要 |
<p>PURPOSE:To use only one kind of voltage giving a slice level by applying an input signal to one terminal of a differential circuit and giving a reference voltage to the other, giving two outputs to two terminals of a 2nd differential circuit and giving a 2nd reference voltage to the other terminal so as to allow the 2nd differential circuit to output the input signal with full wave rectification. CONSTITUTION:An input signal is fed to one input terminal (a) of the 1st differential circuit 1 having a function outputting a signal to which phase is the inversion of the input signal and the 1st reference voltage is given to the other input terminal (b). The 2nd reference voltage (a voltage giving a slice level) is fed to the other input terminal (e) of the 2nd differential circuit 2 giving two outputs of the 1st differential circuit 1 to two input terminals (c), (d) of the 2nd differential circuit 2 having a function taking the difference of three input voltages and outputting the result. Thus, an output signal being the result of full wave rectification of the input signal is obtained from the 2nd differential circuit 2 and a voltage giving one kind of slice level is used.</p> |
