| 摘要 |
<p>Pulse signals having desired time intervals are generated, in part, by employing a resistor-capacitor series circuit. The potential developed across the capacitor drives a transistor emitter-follower amplifier. Variations in the signal developed at the emitter-follower output and, hence, in the pulse signals derived from that output are caused by variations in the transistor base-to-emitter potential because of changes in temperature. These variations are minimized by employing a diode to "clamp" the potential applied to the RC series circuit so that it varies substantially as the base-to-emitter potential.</p> |
