Abstract: A ramp (sawtooth wave) generator consisting of the voltage-current converter circuit, PMOS two-stage operational amplifier, current mirror and Schmitt trigger circuit is presented for the ...
Unijunction transistors (UJTs) were common circuit elements several decades ago. A simple ramp generator could be built from a single UJT and a few other components (Fig. 1). 1. In a simple UJT-based ...
It’s not always easy to design a ramp generator whose ramping frequency can be changed without manipulation of capacitors or inductors. Many ramp circuit designs are available, but they may not be ...
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