Current-controlled vs analog switch
7 parts
Two controlled switches with opposite personalities share one 0–5 V triangle. The ISW senses the current of a real 0 V branch in series with a 250 Ω leg (a 0→20 mA ramp) and snaps a behavioural hysteresis latch — close at Ion, release at Ioff — driving real 10 mΩ/1 GΩ contacts; the sense element itself carries no voltage, like a real current transformer's ideal limit. The ASW is not a latch at all: its resistance glides smoothly, log-interpolated between 1 GΩ and 100 Ω across the control range, so its divider output curves where the ISW's square snaps.
- V1 5V
- V2 2.5V·5Hz
- ISW1 ≥10mA
- R1 250Ω
- R2 1kΩ
- ASW1
- R3 100kΩ
