Loaded Chain Three-Row Scan - Electronic Circuits V: Front-End Conditioning and Gain Contracts Step by Step

Three loaded-node rows carry one source factor through the full front-end chain. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

One loaded volt doubles but still drives LOW

The loaded node is 1 volt. Gain 2 makes 2 volts, below the lower threshold, so the load output is 0 volts.

2\cdot1\ \text{V}=2\ \text{V}

Two loaded volts hold the HIGH decision

The gain output is 4 volts, inside the band. With prior HIGH fixed, the output load receives 8 volts.

2\cdot2\ \text{V}=4\ \text{V}

Three loaded volts cross the upper threshold

The final source row gives 6 volts at the gain node, above the upper threshold. The output load still sees 8 volts because the same output source and load are fixed.

2\cdot3\ \text{V}=6\ \text{V}