This circuit generates output pulses with sequential delays. The delays can be programmed by the values of the resistors and the capacitor. The supply voltage can typically be between 5 and 12 V.
This circuit is from National Semiconductor documentation. The operational amplifier is of the...
In the figure we have the way to add hysteresis to an operational amplifier. The relationship...
This circuit, from an American publication of 1974, provides a 0.005% regulation with a variation of...