Signal Maximizing or Minimizing Circuit
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
This very simple circuit allows easy detection of whether an external adjustment is improving or reducing the amplitude of a high frequency AC signal (IN). If the adjustment begins to reduce the signal amplitude, the LED (light-emitting diode) immediately shuts off, while increasing amplitude keeps the LED turned ON.