Transconductance amp gives
oscillator reciprocal response:
04/17/03 EDN-Design Ideas / The circuit
in Figure 1 is a variation on the familiar
integrator/comparator triangle-wave oscillator,
which you typically implement with two op amps.
An integrator and a comparator connect in a
positive-feedback loop; the comparator drives
the integrator and vice versa. A fixed amount of
Hysteresis exists in the comparator, producing a
triangle wave at the integrator's output...
serves dual purpose:
11/22/99 Electronic Design - Ideas for Design /
In conventional triangular-wave oscillators,
hysteresis from positive feedback in the Schmitt
trigger determines the voltage levels and
amplitude of the triangular waves. With this
topology, it’s. .