Precision Trapezoid Waveform Generator
Original Publication Date: 1980-Feb-01
Included in the Prior Art Database: 2005-Feb-13
The above circuit precisely generates a trapezoid waveform by controlling the current used to charge and discharge capacitor 10. The capacitor is isolated from the output by the high input impedance of operational amplifier 12. The precision is obtained by use of current sources and in matched diode pairs D1 and D2, D3 and D4.