Circuit

The XTR106 is a low cost, monolithic 4-20mA, two-wire current transmitter designed for bridge sensors. It provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. Current for powering additional external input circuitry is available from the VREG pin.
The instrumentation amplifier can be used over a wide range of [...]

Introduction

This circuit enables you to connect both your washing machine and your tumble dryer on one wall outlet,
without blowing the fuse!
The trick is that the washing machine only consumes full power when heating the water.
During the other stages (pumping, tumbling, centrifuging) the power consumption is much lower.
The circuit switches off the tumble dryer during the [...]

I got this from a dosing pump control circuit.
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