This circuit was found in a March 1988 Radio Electronics. The voltage scale is set at R3. 19 LEDs are used in this indicator circuit.
The circuit illustrated in the figure can be used to detect earthquakes or vibrations of...
This circuit was found in a 1989 documentation. The circuit directly controls a power load by the use...
Hybrid PWM controllers with integrated 8-bit microcontrollers for supervision and management can...