| 摘要 |
<p>PURPOSE:To improve the waveform accuracy by providing a 1st means generating a triangle wave in response to the input changed monotonously, a 2nd means receiving the triangle wave and generating a couple of triangle wave outputs and a waveform shaping means converting the output into a waveform component with a different tilt. CONSTITUTION:A triangle wave generating circuit 2A generates a triangle wave voltage Va in response to an input voltage Vin increasing or decreasing monotonously. A triangle wave generating circuit 2B receives the triangle wave Va to generate a couple of corresponding triangle wave voltages Vb. A waveform shaping circuit 4 converts the waveform component increasing/ decreasing the triangle wave voltage Vb into the waveform component with different tilt to generate a waveform output voltage Vout representing a pseudo trigonometric function. Thus, the waveform component is independent of the resistance ratio using a resistor circuit connected in series and the waveform component is independently of the temperature coefficient of the resistors.</p> |
