The 555 datasheet says a pulse on reset will override trigger and also force discharge of C1. In Figure 1, R3 and C2 provide ...

In addition to achieving cost parity with other high-volume potentiometers, this design provides improved resistor tolerance by eliminating the wear on the resistive element. To further reduce system ...

It’s remarkable how many switching regulator chips use the same basic two-resistor network for output voltage programming. Figure 1 illustrates this feature in a typical (buck type) regulator. See R1 ...