| 摘要 |
<p>PURPOSE:To provide a triangular wave oscillation circuit to output a triangular wave by which the frequency and amplitude of an oscillating signal can be varied. CONSTITUTION:One of plural input signals S1,..., Sn is selected by a switch means 2, and a selected input signal is integrated by an integration means 3, and it is outputted as an integration value signal SOUT, and control signals T1,..., Tn to switch the switch means 3 are outputted by comparing the integration value signal SOUT with a prescribed value by a control means 4, and the integration value signal SOUT is outputted as the output signal of the triangular wave. Thereby, the oscillation frequency of the output signal SOUT can be varied by changing the changing speed of the output signal SOUT that is the integration value signal SOUT outputted from the integration means 3 in proportion to the signal levels of the input signals S1,..., Sn, and also, the output amplitude of the output signal SOUT can be controlled by selecting the input signals S1,..., Sn of the switch means 2.</p> |
