Switching amplifiers supply power, evaluate the sensor signal and control the output. Switched-mode power supplies from autosen are available as switching amplifiers and as two-point controls. Switching amplifiers
strengthen the sensor signal and make it available for controlling the output relay. The sensor outputs are usually only designed for small load currents, therefore a switching amplifier is required in addition. With two-point control
, switching takes place at two defined measured values of the sensor.