Linear sawtooth voltage-wave generator employing transistor timing circuit having capacitor-zener diode combination feedback

Claim 1

A SAWTOOTH VOLTAGE WAVE GENERATOR FOR PRODUCING SAWTOOTH WAVEFORMS OF INCREASED LINEARITY COMPRISING: A SWITCHING TRANSISTOR HAVING A BASE, EMITTER, AND COLLECTOR; AN OUTPUT TRANSISTOR HAVING A BASE, EMITTER, AND COLLECTOR AND BIASED FOR EMITTER FOLLOWER OPERATION; A CHARGING CAPACITOR CONNECTED BETWEEN SAID SWITCHING TRANSISTOR COLLECTOR AND EMITTER; MEANS COUPLING SAID SWITCHING TRANSISTOR COLLECTOR TO SAID OUTPUT TRANSDUCER BASE; A FIRST DIODE CONNECTED WITH ITS ANODE TO A SOURCE OF VOLTAGE; FIRST RESISTOR COUPLED AT ONE SIDE TO THE CATHODE OF SAID FIRST DIODE; A SECOND RESISTOR CONNECTED BETWEEN THE OTHER SIDE OF SAID FIRST RESISTOR AND SAID SWITCHING TRANSIENT COLLECTOR; A DIODE MEANS CONNECTED BETWEEN SAID OUTPUT TRANSISTOR EMITTER AND THE JUNCTION OF SAID FIRST RESISTOR AND SAID SECOND RESISTOR FOR MAINTAINING A CONSTANT CURRENT FOR SAID CHARGING CAPACITOR; AND A CAPACITOR CONNECTED BETWEEN SAID ONE SIDE OF SAID FIRST RESISTOR AND SAID SWITCHING TRANSISTOR EMITTER AND COOPERATING WITH SAID DIODE MEANS TO PROVIDE AN INCREASED PERIOD OF RESPONSE FOR SAID DIODE MEANS WHEREBY SAWTOOTH WAVEFORMS OF INCREASED LINEARITY ARE PROVIDED.